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Preprint SHORT NOTE | doi:10.20944/preprints202005.0287.v1

The Impacts of COVID-19 to Small Scale Fisheries in Tun Mustapha Park, Sabah, Malaysia; What Do We Know So Far?

Joannie Jomitol, Adam J. Payne, Sarmalin Sakirun, Mohd. Omar Bural

Subject: Biology And Life Sciences, Aquatic Science Keywords: COVID-19; small scale fisheries; artisarnal fishers; coastal communities; marine protected area; Malaysia; fisheries; impacts

Online: 17 May 2020 (08:46:10 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202006.0143.v1

Assessing Impacts of COVID-19 on Aquatic Food System and Small-Scale Fisheries in Bangladesh

Atiqur Rahman Sunny, Sharif Ahmed Sazzad, Gopal Chandra Datta, Ashoke Kumar Sarker, Md. Ashrafuzzaman, Shamsul H. Prodhan

Subject: Biology And Life Sciences, Aquatic Science Keywords: COVID-19; Corona virus; Aquatic food system; Food security; Small-scale fisheries; Bangladesh

Online: 12 June 2020 (08:25:09 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202006.0303.v1

Understanding Livelihood Characteristics and Vulnerabilities of Small-scale Fishers in Coastal Bangladesh

Atiqur Rahman Sunny

Subject: Biology And Life Sciences, Aquatic Science Keywords: Livelihoods; Sustainability; Vulnerability; Small-scale Fishers; Bangladesh

Online: 24 June 2020 (14:34:34 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202102.0321.v1

Impact of Climate Change and Ongoing Adaptation Measures in the Bangladesh Sundarbans

Suprakash Chakma, Anup Kumar Paul, Md. Arifur Rahman, Mahmudul Hasan Mithun, Atiqur Rahman Sunny

Subject: Biology And Life Sciences, Aquatic Science Keywords: Sundarbans; Fisheries; Natural disasters; Occupational changes; Climate change

Online: 16 February 2021 (13:20:45 CET)

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Preprint REVIEW | doi:10.20944/preprints202311.1092.v1

Assessing Impact of Microplastics on Aquatic Food System and Human Health

Mahmudul Hasan Mithun, Auditi kar, Atiqur Rahman Sunny, Masum Billah, Sharif Ahmed Sazzad, Sadeques Salehin, Al Maksud Foysal, Nusrat Jahan, Koushikur Rahman, Abdulla Al Shiam, Redoyan Chowdhury, Jubayer Arafat, Abdul Baten

Subject: Biology And Life Sciences, Aquatic Science Keywords: Micro-plastics; routes of MPs; eco-toxicology; aquatic organisms; human exposure

Online: 17 November 2023 (02:27:47 CET)

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Preprint REVIEW | doi:10.20944/preprints202012.0757.v1

Remote Sensing of Ocean Fronts in Marine Ecology and Fisheries

Igor Belkin

Subject: Biology And Life Sciences, Aquatic Science Keywords: Ocean front; Marine ecology; Fisheries; Front detection; Satellite imagery; Feature-based approach

Online: 30 December 2020 (14:53:37 CET)

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Preprint REVIEW | doi:10.20944/preprints202104.0549.v1

Fisheries in the Context of Attaining Sustainable Development Goals (SDGs) in Bangladesh: COVID-19 Impacts and Future Prospects

Atiqur Rahman Sunny, Shamsul Haque Prodhan, Md. Ashrafuzzaman, Mahmudul Hasan Mithun, Monayem Hussain, Md Tariqul Alam, Aminur Rashid, Mohammad Mosarof Hossain

Subject: Biology And Life Sciences, Aquatic Science Keywords: Fisheries; Aquaculture; Food security; SDGs; COVID-19; Bangladesh

Online: 20 April 2021 (14:12:18 CEST)

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Preprint ARTICLE | doi:10.20944/preprints201908.0306.v1

Concurrent Collapses of Demersal Fish and Sea Trout (Salmo trutta) on Scotland’s West Coast following the Removal of the “Three-Mile Fishing Limit”

Martin Jaffa

Subject: Biology And Life Sciences, Aquatic Science Keywords: fisheries; fish farming; demersal fish; sea trout; stock collapse; three-mile fishing limit

Online: 29 August 2019 (05:39:29 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202002.0357.v1

Invasive Alien Species of Bangladesh

Sharif A. Mukul, Khan Mohammed Abu Sayed Arfin, Mohammad Belal Uddin

Subject: Biology And Life Sciences, Aquatic Science Keywords: biodiversity loss; climate change; ecosystems; exotic species; agriculture; forestry; fisheries

Online: 25 February 2020 (05:06:15 CET)

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Preprint REVIEW | doi:10.20944/preprints202102.0145.v1

Shark Conservation – Analysis and Synthesis

Ila France Porcher, Brian W Darvell, Iris Ziegler

Subject: Biology And Life Sciences, Aquatic Science Keywords: Biodiversity Conservation, Sharks, Sustainable Shark Fishing, Fisheries, Shark Fin Trade

Online: 4 February 2021 (15:50:54 CET)

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A detailed analysis of fishing records has shown that the shark species accessible to global fisheries have been systematically depleted for decades. They were already fished to about 10 percent of their former levels by 2003. Now one species after another is being listed on the IUCN Red List of Threatened Species as their numbers drop towards extinction. Shark depletion has not been well documented and a large proportion of shark mortality has been bycatch, the target species being teleost fish. But with the rise in value of shark fins due to the shark fin trade, at the same time as teleost fish stocks have become severely overfished, sharks, along with tuna, have become the most valuable catches. Fishing on the high seas is scarcely profitable, and so is heavily supported by subsidies. But the shark fin trade, in which organized crime is heavily involved, is driven by enormous profits and provides a powerful demand for the fins of all sharks. Thus it is now being supplied by fisheries around the world. There is no interest in sustainability in consumer countries, and neither the will nor the resources to manage the trade exist. Although some shark fisheries might have been managed sustainably in some regions for certain species for meat, such fisheries are increasingly dependent on the shark fin trade.. The rising global demand for shark fins, coupled with the increasing depletion of the animals supplying that demand, makes commercial fishing for sharks unsustainable. Given their high ecological value across the aquatic ecosystems they inhabit, it is important that they receive more effective measures of protection going far beyond the currently existing ones. In particular, protection of all sharks, manta rays, devil rays and rhino rays through an Appendix I CITES listing should be effected immediately due to the scale of the global take of the shark fin trade and the state of shark depletion amply documented in the literature.

Preprint REVIEW | doi:10.20944/preprints202102.0145.v3

Shark Conservation – Analysis and Synthesis

Ila France Porcher, Brian W Darvell, Iris Ziegler

Subject: Biology And Life Sciences, Aquatic Science Keywords: Biodiversity Conservation, Sharks, Sustainable Shark Fishing, Fisheries, Shark Fin Trade

Online: 18 March 2021 (16:37:54 CET)

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A detailed analysis of fishing records has shown that the shark species accessible to global fisheries have been systematically depleted for decades. They were already fished to about 10 percent of their former levels by 2003. Now one species after another is being listed on the IUCN Red List of Threatened Species as their numbers drop towards extinction. Shark depletion has not been well documented and a large proportion of shark mortality has been bycatch, the target species being teleost fish. But with the rise in value of shark fins due to the shark fin trade, at the same time as teleost fish stocks have become severely overfished, sharks, along with tuna, have become the most valuable catches. Fishing on the high seas is scarcely profitable, and so is heavily supported by subsidies. But the shark fin trade, in which organized crime is heavily involved, is driven by enormous profits and provides a powerful demand for the fins of all sharks. Thus it is now being supplied by fisheries around the world. There is no interest in sustainability in consumer countries, and neither the will nor the resources to manage the trade exist. Although some shark fisheries might have been managed sustainably in some regions for certain species for meat, such fisheries are increasingly dependent on the shark fin trade.. The rising global demand for shark fins, coupled with the increasing depletion of the animals supplying that demand, makes commercial fishing for sharks unsustainable. Given their high ecological value across the aquatic ecosystems they inhabit, it is important that they receive more effective measures of protection going far beyond the currently existing ones. In particular, protection of all sharks, manta rays, devil rays and rhino rays through an Appendix I CITES listing should be effected immediately due to the scale of the global take of the shark fin trade and the state of shark depletion amply documented in the literature.

Preprint ARTICLE | doi:10.20944/preprints202201.0273.v1

What Makes Small-Scale Fishers Resilient? Lessons from the Coping Strategies under COVID-19 Outbreak Observed in Trang Province, Thailand

Yuki Arai, Maneewan Sanlee, Misato Uehara, Shimpei Iwasaki

Subject: Biology And Life Sciences, Aquatic Science Keywords: small-scale fishers; resilience; Adaptive Cycle Model; Sustainable Livelihood Framework; COVID-19; coping strategy; alternative livelihood; Trang Province; Thailand

Online: 19 January 2022 (14:20:19 CET)

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Preprint REVIEW | doi:10.20944/preprints202202.0284.v1

The Italian Alpine and Subalpine Trouts. Taxonomy, Evolution, and Conservation

Gianluca Polgar, Mattia Iaia, Tommaso Righi, Pietro Volta

Subject: Biology And Life Sciences, Aquatic Science Keywords: Recreational fisheries fishery management; introgressive hybridization; stocking; non-native species; allochthonous species; trout fishing; trout taxonomy

Online: 23 February 2022 (03:09:39 CET)

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Preprint REVIEW | doi:10.20944/preprints202102.0145.v4

Shark Conservation – Analysis and Synthesis

Ila France Porcher, Brian W Darvell

Subject: Biology And Life Sciences, Aquatic Science Keywords: Biodiversity Conservation, Sharks, Sustainable Shark Fishing, Fisheries, Shark Fin Trade

Online: 15 September 2021 (10:54:13 CEST)

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A detailed analysis of fishing records has shown that the shark species accessible to global fisheries have been systematically depleted for decades. They were already fished to about 10 percent of their former levels by 2003. Now one species after another is being listed on the IUCN Red List of Threatened Species as their numbers drop towards extinction. Shark depletion has not been well documented and a large proportion of shark mortality has been bycatch, the target species being teleost fish. But with the rise in value of shark fins due to the shark fin trade, at the same time as teleost fish stocks have become severely overfished, sharks, along with tuna, have become the most valuable catches. Fishing on the high seas is scarcely profitable, and so is heavily supported by subsidies. But the shark fin trade, in which organized crime is heavily involved, is driven by enormous profits and provides a powerful demand for the fins of all sharks. Thus it is now being supplied by fisheries around the world. There is no interest in sustainability in consumer countries, and neither the will nor the resources to manage the trade exist. Although some shark fisheries might have been managed sustainably in some regions for certain species for meat, such fisheries are increasingly dependent on the shark fin trade.. The rising global demand for shark fins, coupled with the increasing depletion of the animals supplying that demand, makes commercial fishing for sharks unsustainable. Given their high ecological value across the aquatic ecosystems they inhabit, it is important that they receive more effective measures of protection going far beyond the currently existing ones. In particular, protection of all sharks, manta rays, devil rays and rhino rays through an Appendix I CITES listing should be effected immediately due to the scale of the global take of the shark fin trade and the state of shark depletion amply documented in the literature.

Preprint ARTICLE | doi:10.20944/preprints202110.0051.v1

Longman’s Beaked Whale Indopacetus pacificus and Mesoplodon spp. Entanglements Off Pakistan: Are Pelagic Gillnet Fisheries a Potential Threat?

Muhammad Shoaib Kiani, Rab Nawaz, Muhammad Moazzam, Bushra Shafiq, Koen Van Waerebeek

Subject: Biology And Life Sciences, Aquatic Science Keywords: Longman’s beaked whale; Indopacetus pacificus; Mesoplodon spp.; tuna gillnet fishery; bycatch; citizen science; Arabian Sea

Online: 4 October 2021 (11:40:47 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202011.0014.v1

Incorporating Sea Surface Temperature into Bioeconomic Fishery Models: An Examination of Western and Central Pacific Tuna Fisheries

Zachary Porreca

Subject: Biology And Life Sciences, Aquatic Science Keywords: fishery; bioeconomic; sustainability; tuna; management

Online: 2 November 2020 (10:09:47 CET)

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Preprint CONCEPT PAPER | doi:10.20944/preprints202008.0078.v1

Operationalizing Ensemble Models for Scientific Advice to Fisheries Management

Ernesto Jardim, Manuela Azevedo, Jon Brodziak, Elizabeth N. Brooks, Kelli F. Johnson, Nikolai Klibansky, Colin P. Millar, Coilin Minto, Iago Mosqueira, Richard D.M. Nash, Paris Vasilakopoulos, Brian K. Wells

Subject: Biology And Life Sciences, Aquatic Science Keywords: assessment, conservation, exploitation, management, multimodel, natural resources, ensemble, model, fisheries

Online: 4 August 2020 (04:58:51 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202108.0476.v1

Spoiled for Choice during Cold Season? Habitat Use and Potential Impacts of the Invasive Silurus glanis L. in a Deep, Large and Oligotrophic Lake (Lake Maggiore, North Italy)

Vanessa De Santis, Pietro Volta

Subject: Biology And Life Sciences, Aquatic Science Keywords: Trophic ecology; ecological plasticity; European catfish; pelagic habitat; littoral habitat; commercial fishermen; stomach content analyses; commercial harvest

Online: 24 August 2021 (16:14:00 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202201.0302.v1

Spatial-Temporal Characteristics and Influencing Factors of China’s Fishery Industry Development Quality: A Perspective From Development Economics

Yongzhe Yan, Junhao Chen, Peng Tian, Jialin Li

Subject: Biology And Life Sciences, Aquatic Science Keywords: Development economics; China’s fishery industry; development quality; spatio-temporal differentiation; panel data

Online: 20 January 2022 (11:14:26 CET)

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Preprint REVIEW | doi:10.20944/preprints202102.0145.v2

Shark Conservation – Analysis and Synthesis

Ila France Porcher, Brian W Darvell, Iris Ziegler

Subject: Biology And Life Sciences, Aquatic Science Keywords: Biodiversity Conservation, Sharks, Sustainable Shark Fishing, Fisheries, Shark Fin Trade

Online: 11 February 2021 (17:02:51 CET)

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A detailed analysis of fishing records has shown that the shark species accessible to global fisheries have been systematically depleted for decades. They were already fished to about 10 percent of their former levels by 2003. Now one species after another is being listed on the IUCN Red List of Threatened Species as their numbers drop towards extinction. Shark depletion has not been well documented and a large proportion of shark mortality has been bycatch, the target species being teleost fish. But with the rise in value of shark fins due to the shark fin trade, at the same time as teleost fish stocks have become severely overfished, sharks, along with tuna, have become the most valuable catches. Fishing on the high seas is scarcely profitable, and so is heavily supported by subsidies. But the shark fin trade, in which organized crime is heavily involved, is driven by enormous profits and provides a powerful demand for the fins of all sharks. Thus it is now being supplied by fisheries around the world. There is no interest in sustainability in consumer countries, and neither the will nor the resources to manage the trade exist. Although some shark fisheries might have been managed sustainably in some regions for certain species for meat, such fisheries are increasingly dependent on the shark fin trade.. The rising global demand for shark fins, coupled with the increasing depletion of the animals supplying that demand, makes commercial fishing for sharks unsustainable. Given their high ecological value across the aquatic ecosystems they inhabit, it is important that they receive more effective measures of protection going far beyond the currently existing ones. In particular, protection of all sharks, manta rays, devil rays and rhino rays through an Appendix I CITES listing should be effected immediately due to the scale of the global take of the shark fin trade and the state of shark depletion amply documented in the literature.

Preprint ARTICLE | doi:10.20944/preprints202003.0108.v1

Comparison of Catch Efficiency between the Use of Circle and Tuna Hooks in Taiwan’s Tuna Longline Fishery in the Eastern Pacific Ocean

Chao-ching Chen, Hsin-Zong Lin

Subject: Biology And Life Sciences, Aquatic Science Keywords: Taiwan tuna longline fishery; circle hook; tuna hook; catch rate; survival rate

Online: 6 March 2020 (08:57:07 CET)

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Taiwan is the world’s leading country regarding tuna longline fisheries; the combined catches with those from Japan account for more than half of the global total. However, the bycatch of sea turtles, seabirds, and dolphins in longline fisheries has attracted international concern. Regarding sea turtle conservation, the use of circle hooks in longline fisheries will inevitably become a trend. Meanwhile, Taiwanese fishermen are concerned whether the use of circle hooks will have a negative impact on the catch efficiency of target species. This study was conducted to compare the catch efficiency of circle and tuna hooks by the Taiwanese commercial tuna longline fishing vessels in the eastern Pacific Ocean. The results indicated that if the effects of immersion time were considered, the catch rates of all groups were the same between 4.2-sun circle and tuna hooks. However, the catch rate of 4.0-sun circle hooks was significantly higher than the two types of 4.2-sun circle and tuna hooks. Regarding survival rates, fish caught with circle hooks showed higher survival rates than tuna hooks for total commercial fish, tunas and yellowfin tuna (Thunnus albacares). However, the survival rate was only determined at haulback; the relationship between survival rate and immersion time still needs further investigation. Regarding catch sizes, there were no significant differences in the sizes of bigeye (Thunnus obesus) and yellowfin tuna between circle and tuna hooks. But based solely on mean weight, the value of yellowfin tuna caught using circle hooks may be higher than those using tuna hooks. In summary, the circle hooks used in this study did not show a negative impact on the catch efficiency of Taiwanese longline fisheries, and could show a superior performance than that of tuna hooks. These results could be actively promoted in the industry through the education and training of fishermen; thus enabling Taiwan to comply with international sea turtle conservation trends.

Preprint ARTICLE | doi:10.20944/preprints202312.0029.v1

Genomics of Re-emergent Aeromonas salmonicida in Atlantic Salmon Outbreaks

Marcos Godoy, Marco Montes de Oca, Rudy Suarez, Alexis Martinez, Juan Pablo Pontigo, Diego Caro, Karina Kusch, Harry Bohle, Molly Kibenge, Frederick Kibenge, Sion Bayliss

Subject: Biology And Life Sciences, Aquatic Science Keywords: furunculosis; Aeromonas salmonicida; Salmo salar; genomic diversity

Online: 1 December 2023 (05:31:10 CET)

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Preprint ARTICLE | doi:10.20944/preprints202312.0507.v1

Typology of Milkfish (Chanos chanos) Farms: Their Operations, Socio-Economic Viability, and Challenges

Edison D. Macusi, Erna S. Macusi, Henzel P. Bongas, Melanie A. Cayacay

Subject: Biology And Life Sciences, Aquatic Science Keywords: climate change impacts; feeding times; mariculture; stocking density; water quality

Online: 7 December 2023 (09:40:13 CET)

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Preprint REVIEW | doi:10.20944/preprints202305.1604.v1

Protein Fishmeal Replacement in Aquaculture: A Systematic Review and Implications on Growth and Adoption Viability in the Philippines

Edison D. Macusi, Melanie A. Cayacay, Elaine Q. Borazon, Anthony C. Sales, Ahasan Habib, Nur Fadli, Mudjekeewis D. Santos

Subject: Biology And Life Sciences, Aquatic Science Keywords: Aquaculture; blood meal; feather meal; feeds; milkfish; tilapia

Online: 23 May 2023 (07:48:09 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202110.0387.v1

Decapods Associated with the Southern King Crab (Lithodes santolla) Fishery in Central Patagonia (44º S, Chile).

Guillermo Figueroa-Muñoz, Carlos Molinet, Manuel Diaz, Patricio De los Rios-Escalante

Subject: Biology And Life Sciences, Aquatic Science Keywords: Lithodes santolla; fisheries; Decapoda; bathymetric pattern; Patagonia

Online: 26 October 2021 (13:41:51 CEST)

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The Southern king crab, Lithodes santolla, is an important fishery resource in the inner seas of Chilean Patagonia. The fishing gear used to catch Southern king crab (bait trap) and its operation at different depths over several months provide the opportunity to gather information about relative abundance. The aim of the present study was to analyze the information collected from the catches of Southern king crab and its associated fauna in the Magdalena Fjord to study the biodiversity and ecology of scavenging decapod crustaceans. Specifically, the study aimed to determine the bathymetric patterns of abundance by species, to model the abundance by season (winter and spring) and to determine the structuring pattern of scavenging decapods assemblage. Samples were collected between June and November 2019 by deploying traps in four bathymetric strata: 1 = 0–50 m; 2 = 51–100 m; 3 =101–150 m; 4 = 151–200 m. We registered a total of 673 decapod specimens associated with the Southern king crab fishery, representing five species: Lithodes santolla (n = 96), Libidoclaea smithii (n = 10), Metacarcinus edwardsii (n = 58), Munida gregaria (n = 507) and Peltarion spinulosum (n = 2). The abundance of decapod species varied by month and bathymetric strata. We found bathymetric patterns for L. santolla abundance, M. gregaria, M. edwardsii, and total species abundance. The most informative model to explain scavenging decapod abundance by GLM included species and season. The null model of species co-occurrence analysis revealed that all species associations during the sampled months were random. Our study is the first that provides evidence about patterns of bathymetrical and temporal variation of scavenging decapod abundance and expands the body of knowledge regarding the biodiversity of scavenger decapods in the Magdalena Sound, which currently is affected by multiple stressors such as climate change and anthropic activities (aquaculture and fisheries).

Preprint ARTICLE | doi:10.20944/preprints202301.0355.v1

Fishers’ Communication as Critical Factor for Catch and Tuna Traceability Implementation among Small-Scale Fishers in Davao Gulf, Philippines

Edison D. Macusi, Miko Mariz C. Castro, Ivy M. Nallos, Christine P. Peralez

Subject: Biology And Life Sciences, Aquatic Science Keywords: Davao Gulf; fisheries management; small-scale fisheries; tuna fisheries; traceability

Online: 19 January 2023 (09:49:02 CET)

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Preprint ARTICLE | doi:10.20944/preprints202305.0215.v1

Cumulative Negative Impacts of Invasive Alien Species on Ma-Rine Ecosystems of the Aegean Sea

Konstantinos Tsirintanis, Maria Sini, Michail Ragkousis, Argyro Zenetos, Stelios Katsanevakis

Subject: Biology And Life Sciences, Aquatic Science Keywords: Invasive species; alien; cryptogenic; impacts; CIMPAL; biodiversity; mapping; Aegean; management

Online: 4 May 2023 (07:41:56 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202311.1588.v1

Microbiome Dynamics of Salmo salar Skin and Gill

Marcos Godoy, Yoandy Coca, Rudy Suárez, Marco Montes de Oca, Jacob W. Bledsoe, Ian Burbulis, Diego Caro, Juan Pablo Pontigo, Vinicius Maracaja-Coutinho, Raúl Arias-Carrasco, Leonardo Rodríguez-Córdova, César Sáez-Navarrete

Subject: Biology And Life Sciences, Aquatic Science Keywords: Piscirickettsia salmonis; Salmo salar; skin; ulcer; microbiome

Online: 24 November 2023 (09:25:08 CET)

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Preprint ARTICLE | doi:10.20944/preprints202310.0275.v1

First Polyphasic Study of Cheffia Reservoir (Algeria) Cyanobacteria Isolates Reveals Toxic Picocyanobacteria Genotype

Lamia Benredjem, João Morais, Guilherme Scotta Hentschke, Vitor Vasconcelos

Subject: Biology And Life Sciences, Aquatic Science Keywords: Algeria; cyanobacteria; mcyE gene; morphology; Picocyanobacteria; phylogeny

Online: 5 October 2023 (10:28:19 CEST)

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Preprint REVIEW | doi:10.20944/preprints202312.1465.v1

Towards Shrimp and Prawn Welfare in the Wild‐ Caught Fishing Industry: A Global Review and Recommendations for Research and Policy

Ren Ryba, Sean Connell, Shannon Davis, Yip Fai Tse, Peter Singer

Subject: Biology And Life Sciences, Aquatic Science Keywords: Acetes; Caridea; China; decapods; Penaeoidea; Sergestidae

Online: 19 December 2023 (14:00:05 CET)

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Wild-caught shrimp and prawns are the single most numerous group of animals directly killed for human food consumption on the planet. Recent scientific developments have led to greater understanding of the probability that at least some species of shrimp are sentient beings and, should that be the case, policies that could improve shrimp welfare. We begin with an overview of global shrimp fisheries and their characteristics. The world's shrimp fisheries can be understood as a spectrum between large, industrial trawlers in developed and developing countries (e.g. Western Europe, the Americas, Russia) and small-scale fisheries for subsistence in developing countries (e.g. South-East Asia, East Africa). Each has different implications for animal welfare, particularly in light of human wellbeing challenges associated with shrimp fisheries. Secondly, we turn to the emerging science of shrimp welfare and examine recent developments in government and industry policy. In large-scale trawl fisheries, animal welfare can be improved by installing electrical stunning equipment; continuing existing work on bycatch reduction; and optimising on-board processes to reduce the stress endured by shrimp during capture and slaughter. In small-scale fisheries, improving government capacity and supply chain practices may bring benefits for communities in the short-term while opening up opportunities for more specific shrimp welfare policies in the long-term. Thirdly, we provide a new dataset of the estimated numbers of individual shrimp caught by country and species. Drawing on this data, we provide a description of the shrimp fishing industry in the world's top 25 countries by estimated catch of individual shrimp. By our estimates, the wild-catch shrimp industry catches 37.4 trillion individual shrimp (36.3 trillion sergestids, 781 billion carideans, and 287 billion penaeids). Finally, we explore the ethical implications of the probability that shrimp and prawns are capable of feeling pain and the welfare policies that could be adopted.

Preprint ARTICLE | doi:10.20944/preprints202306.1286.v1

Posidonia Spheroids Intercepting Plastic Litter: Implication for Beach Clean-Ups

Nunziatina Porcino, teresa bottari, Francesca Falco, Sabrina Natale, Monique Mancuso

Subject: Biology And Life Sciences, Aquatic Science Keywords: Posidonia oceanica; aegagropilae; plastic litter; beach management; Mediterranean Sea

Online: 19 June 2023 (04:35:23 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202310.1034.v1

The Black Soldier Fly (Hermetia illucens) Larvae Meal Can Fully Replace Fish Meal in Practical Nursery Diets for Post-larval Penaeus vannamei under High-Density Culture

Alberto Nunes, Hiroshi Yamamoto, João Paulo Simões, João Luiz Pisa, Nelson Miyamoto, Jordana Sampaio Leite

Subject: Biology And Life Sciences, Aquatic Science Keywords: shrimp; nursery diets; black soldier fly; fish meal; replacement

Online: 17 October 2023 (08:30:20 CEST)

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The black soldier larvae meal (BSFLM) has been the most extensively studied insect protein source in shrimp nutrition. However, both the availability and prices of BSFLM are still a constraint for its widespread use as an ingredient in animal feeds. The present study investigated the growth and economic performance of post-larval (PL) P. vannamei fed nursery diets with a progressive replacement of fish meal (FML) for BSFLM at 0, 25, 50, 75 and 100%. These replacements corresponded to a dietary inclusion (% of the diet, as-is) of FML and BSFLM of 16.50 and 6.33%, 11.00 and 13.04%, 5.50 and 19.74%, and 0 and 26.46%, respectively. A total of 102,647 shrimp at the age of PL15 with 2.7 ± 0.2 mg body weight (BW) were stocked in fifty 1.5-m3 tanks under 1,369 PLs/m3 (2,053 ± 33 PLs/tank) and reared for 42 days. Final shrimp survival (90.5 ± 7.6%), daily weight gain (14.7 ± 1.1 mg/day), and apparent feed intake (0.67 ± 0.03 g of feed per stocked shrimp) were unaffected by dietary treatment. The highest gained yield (791 ± 52 and 776 ± 38 g/m3) and final BW (621 ± 7.2 and 632 ± 7.2 mg) were attained when FML was replaced for BSFLM at 50 and 75% with the lowest at 0% (726 ± 34 g/m3 and 598 ± 8.1 mg, respectively). Shrimp fed diets with 0 and 100% replacement of FML exhibited the highest feed conversion ratio (1.25 ± 0.04 and 1.24 ± 0.08) compared to those fed a diet with 50% (1.16 ± 0.06). At a price of USD 2.00/kg, BSFLM demonstrated a favorable ROI (Return of Investment) when compared to FML, irrespective of the replacement level. With 25 and 50% replacement, BSFLM remained cost-competitive up to 3.50 USD/kg. At 75% FML replacement, there were no significant differences in ROI with a price range of 2.00 up to 3.04 USD/kg. At full replacement, ROI dropped significantly at a BSFLM price of 2.50 USD/kg and beyond. It can be concluded that FML can be fully replaced for BSFLM in well-balanced nursery diets for P. vannamei. While the full replacement of FML for BSFLM was successfully accomplished, the competitive ROI was sustained only when the price of BSFLM did not exceed 3.04 USD/kg at its dietary highest inclusion of 19.74%. Further research may be necessary to fine-tune cost-effective inclusion levels of BSFLM to optimize the economic outcomes while considering the fluctuating prices of FML.

Preprint ARTICLE | doi:10.20944/preprints202306.1205.v1

Microplastics, Additives, and Plasticizers in Freshwater Bivalves: Preliminary Research of Biomonitoring

Giulia Cesarini, Fabiana Corami, Beatrice Rosso, Massimiliano Scalici

Subject: Biology And Life Sciences, Aquatic Science Keywords: freshwaters; environmental exposure; gills; gastrointestinal tracts; biological uptake; nylon; rayon

Online: 19 June 2023 (09:47:25 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202306.0083.v1

Integrated Approach to Evaluate the Cosmetic Efficacy of Brown Alga Padina boergesenii: From Phytochemical Profiling to Bioactivity Assessment

Haresh S. Kalasariya, Leonel Pereira, Nikunj B. Patel

Subject: Biology And Life Sciences, Aquatic Science Keywords: Padina boergesenii; Marine macroalgae; Cosmetics; HRLCMS-QTOF; GCMS; FTIR

Online: 1 June 2023 (11:50:52 CEST)

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The cosmetic industry recognizes the importance of natural sources for functional active constit-uents in meeting consumer expectations for safer and more sustainable beauty care products. Ma-rine macroalgae have emerged as promising resources, offering diverse bioactive constituents with potential applications in cosmetics. In this study, we investigated the biochemical profile of Padina boergesenii, a marine macroalga, using various methods to assess its potential as a cosmetic ingre-dient. The Fourier Transform Infrared (FTIR) analysis revealed the presence of distinct bioactive functional groups associated with numerous skin-beneficial compounds. Furthermore, the ethanolic and methanolic extracts of P. boergesenii were subjected to Gas Chromatography-Mass Spectrom-etry (GC-MS) analysis, which identified a total of six and fifteen significant phytocompounds, re-spectively. Additionally, a comprehensive phytochemical profiling of P. boergesenii was performed using High-Resolution Liquid Chromatography-Mass Spectrometry Quadrupole Time-of-Flight (HRLCMS-Q-TOF), highlighting the presence of various terpenoids, alkaloids, peptides, fatty acids, derivatives, and coumarins with potential cosmetic applications. To further assess its potential as a cosmetic ingredient, P. boergesenii was subjected to several additional estimations. Pigment estima-tion revealed the presence of specific pigments, while the determination of total phenol content and total protein content highlighted the richness of these bioactive components. The antioxidant analysis using the DPPH method demonstrated the antioxidant potential of P. boergesenii extracts, suggesting their ability to combat oxidative stress-related skin damage. Moreover, the tyrosinase inhibition assay indicated the inhibitory effect of P. boergesenii extracts on tyrosinase activity, which is relevant for addressing hyperpigmentation concerns. Furthermore, the elemental composition of P. boergesenii was evaluated using Inductively Coupled Plasma Atomic Emission Spectrometry (ICP-AES), revealing that silicon (Si) exhibited the highest concentration among the measured elements, while copper (Cu) displayed the lowest concentration. Additionally, HRLCMS-Q-TOF analysis was employed to quantify 21 amino acids, with aspartic acid exhibiting the highest con-centration (2034.99 nmol/mL), and tyrosine demonstrating the lowest concentration (233.26 nmol/mL). The accuracy of all the measured elements and amino acids was deemed acceptable. Taken together, the findings of this study highlight the potential of P. boergesenii as an effective ingredient for enhancing skin health. The incorporation of seaweed-based bioactive components, such as P. boergesenii, into cosmetic products is increasingly common due to their beneficial effects on the skin. Further exploration of the potential applications of P. boergesenii in the cosmetics in-dustry is warranted to harness its valuable bioactive properties.

Preprint ARTICLE | doi:10.20944/preprints202312.1558.v1

Impacts of extreme climate change event on small-scale fishers and their community and their adaptation in Baganga, Davao Oriental

Edison D. Macusi, Lizel L. Sabino, Erna S. Macusi

Subject: Biology And Life Sciences, Aquatic Science Keywords: adaptive strategies; climate risk management; livelihoods; small-scale fisheries; supertyphoons

Online: 20 December 2023 (12:00:49 CET)

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Climate change is unpredictable and can change rapidly or over time; anthropogenic stressors work synergistically to strengthen their impact on vulnerable ecosystems and the fisheries sector. This study documented the past occurrence of extreme climate change impacts, such as supertyphoon Pablo (ST: Bopha), which severely affected Baganga, Davao Oriental, about ten years ago. A mixed-methods data collection was used, combining semi-structured interviews with small-scale fishers (N=120) in four fishing villages and focus group discussions (N=4, participated by about 4 focus groups) on assessing the impacts and their adaptation after climatic events occurred. Our findings indicate that the four selected fishing villages were exposed to common factors of climate change events that destroyed many lives and their livelihood. Including a decrease in catch per trip and the fishing operations disruption (98%). However, due to the impact of the supertyphoon, small-scale fishers in Baganga developed psychological distress (emotional 44% and physical 24%) due to the extreme event or disaster and economic losses (32%). In order to survive, their adaptation strategies relied on government and non-government-provided provisions and projects, e.g., planting trees, constructing a sea wall with wave breakers, cash for work, and tourism as an alternative livelihood. Despite this, our study revealed that the community had limited knowledge on the impacts of climate change, lack clear management goals especially for fishers, and the widespread use of illegal fishing gears. The local government must strongly implement rules, policies, and adaptation measures that will contribute to better and more resilient communities. This can help them to withstand future shocks and provide sustainable fisheries resources that will benefit all the fishers. The study will be useful to policymakers, disaster management group and organization that will help assist affected communities highly affected by climatic events.

Preprint ARTICLE | doi:10.20944/preprints202306.1594.v1

In Vivo Absorption Spectra as Predictors of Algal Biomass and Pigment Content of the Cultured Microalgae Amphidinium carterae, Isochrysis galbana, Nephroselmis sp. and Anabaena sp.

George N. Hotos, Vlasoula Bekiari

Subject: Biology And Life Sciences, Aquatic Science Keywords: Keywords microalgae; pigments; Amphidinium; Isochrysis; Nephroselmis; Anabaena; absorption spectrum.

Online: 22 June 2023 (10:48:04 CEST)

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Preprint REVIEW | doi:10.20944/preprints202305.2033.v1

Impact of Climate Change on Salmonid Smolt Ecology

Teppo Vehanen, Tapio Sutela, Ari Huusko

Subject: Biology And Life Sciences, Aquatic Science Keywords: Climate change; salmonids; Salmo; rivers; freshwater; migration

Online: 30 May 2023 (04:05:33 CEST)

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Preprint REVIEW | doi:10.20944/preprints202311.0156.v1

Advances in Tilapia farming: Statistical Analysis of the Use of Probiotics and Assessment of their Potentials and Challenges

Wellison Amorim Pereira, Iara Reis, Alejandro Villasante, Carolina Ramírez, Sara Franco, Carlos M.N. Mendonça, Danielle de Carla Dias, Leonardo Tachibana, Attilio Converti, Abdel-Fattah M. El-Sayed, Jaime Romero, Elias Figueroa Villalobos, Ricardo Pinheiro de Souza Oliveira

Subject: Biology And Life Sciences, Aquatic Science Keywords: tilapia; probiotics; linear regression analysis; hierarchical regression analysis; Pearson correlation

Online: 2 November 2023 (10:29:36 CET)

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Preprint ARTICLE | doi:10.20944/preprints202307.1510.v1

Advancing Pig Welfare Assessment: Introducing the SSPD-PER Method for Objective and Reliable Pig Emotion Recognition

Jung Hwan Kim, Savina Jassica Colaco, Alwin Poulose, Suresh Neethirajan, Dong Seog Han

Subject: Biology And Life Sciences, Aquatic Science Keywords: Pig emotion recognition (PER); convolution neural network (CNN); Xception; ResNet; deep neural network; domestic livestock; pigs

Online: 21 July 2023 (11:15:43 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202308.1722.v1

Evaluation of the Viral Diversity of Artemia Cysts from Saline Lakes of Kazakhstan through Viral Metagenomics Analysis

Marat Kumar, Kobey Karamendin, Zhanara Mazhibaeva, Yermukhammet Kassymbekov, Temirlan Sabyrzhan, Kuanysh Isbekov, Saule Assylbekova, Aidyn Kydyrmanov

Subject: Biology And Life Sciences, Aquatic Science Keywords: Artemia (brine shrimp); artemia cysts; metagenomics analysis; viral diversity; saline lakes

Online: 24 August 2023 (07:18:52 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202311.1415.v1

Impact of Plastic Pollution on Marine Biodiversity in Italy

Teresa Bottari, Bilal Mghili, Kannan Gunasekarana, Monique Mancuso

Subject: Biology And Life Sciences, Aquatic Science Keywords: Plastic pollution; biodiversity; entanglement; ingestion; endangered species; digital media

Online: 22 November 2023 (12:18:25 CET)

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Preprint ARTICLE | doi:10.20944/preprints202303.0261.v1

The Effect of pH Value on Fertilized Eggs, Larva Fish and Juvenile Fish of Takifugu obscurus

Xianghui Kong, Feng He, Haoshuai Li

Subject: Biology And Life Sciences, Aquatic Science Keywords: Takifugu obscurus; pH; Fertilized egg; Larva fish; Juvenile fish; Saline–alkaline land

Online: 14 March 2023 (14:18:30 CET)

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Preprint ARTICLE | doi:10.20944/preprints202401.1771.v1

Soft-Shell Production of the Invasive Atlantic Blue Crab Callinectes sapidus in the Lesina Lagoon (Se Italy):

Lucrezia Cilenti, Nicola Lago, Antonio Oscar Lillo, Daniel Li Veli, Tommaso Scirocco, Giorgio Mancinelli

Subject: Biology And Life Sciences, Aquatic Science Keywords: Portunidae; seafood; invasive species; functional eradication; Mediterranean Sea

Online: 24 January 2024 (13:30:02 CET)

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Preprint ARTICLE | doi:10.20944/preprints202307.0155.v1

Saxitoxin-Producing Raphidiopsis raciborskii (Cyanobacteria) Constrains Daphnia Fitness and Feeding Behavior Despite of High Nutritious Food Availability

Gabriele Costa Dos Reis, Gustavo H. A. De Carvalho, Mauro Vilar, Sandra M. F. O. Azevedo, Aloysio da Silva Ferrão-Filho

Subject: Biology And Life Sciences, Aquatic Science Keywords: zooplankton; cyanotoxins; nutritional constraint; cyanobacteria

Online: 4 July 2023 (07:48:31 CEST)

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Changes in food quality can dramatically impair zooplankton fitness, especially in eutrophic water bodies where cyanobacteria are usually predominant. Cyanobacteria are considered a food with low nutritional value, besides some species can produce bioactive secondary metabolites reported as toxic to zooplankton. Considering that cyanobacteria can limit survival, growth and reproduction of zooplankton, we hypothesized that the adverse effects of the dietary exposure of Daphnia species to saxitoxin-producing cyanobacteria depend on the relative abundance of nutitious food source in the diet. Life table experiments were conducted with different diets: 1) without nutritional restriction, where neonates were fed with diets at a constant green algae (Monoraphidium capricornutum) biomass as a nutritious food source, and increasing cyanobacterial concentration (STX-producing Raphidiopsis raciborskii), and 2) with diets consisting of different proportions of M. capricornutum (nutritious) and R. raciborskii (poor food) at a total biomass 1.0 mg C L 1. In general, the presence of high proportions of cyanobacteria promoted a decrease in Daphnia somatic growth, reproduction and intrinsic rate of population increase (r) in both diets with more pronounced effects in the nutritionally restricted diet (90% R. raciborskii). Two-way ANOVA revealed significant effects of species/clone and treatments in both assays, with significant interaction between those factors only in the second assay. Regarding the grazing assay, only D. laevis was negatively affected by increased cyanobacterial proportions in the diet. In the life table assay with constant edible food, a reduction in the reproduction parameters and the intrinsic rate of population increase (r) of all species was observed, In conclusion, we found adverse effects of the toxic cyanobacterial strain R. raciborskii on Daphnia fitness, regardless of the constant amount of nutritious food available, proving the toxic effect of R. raciborskii and the nutritional quality of the food has a greater influence on the fitness of these animals.

Preprint ARTICLE | doi:10.20944/preprints202307.0916.v1

Are We Talking about Coral or Macroalgae Reefs? Status of Coral Reef Communities on the Caribbean Coast of Costa Rica

Fabio Quezada-Perez, Sebastián Mena-González, Cindy Fernández-García, Juan Jose Alvarado

Subject: Biology And Life Sciences, Aquatic Science Keywords: coral reefs; macroalgae; ecosystem services; ecosystem functions; phase-shifts

Online: 14 July 2023 (03:24:08 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202304.0794.v1

Two Independently Comparative Transcriptome Analyses of Hemocytes Provide New Insights into Understanding the Disease-Resistant Characteristics of Shrimp against Vibrio Infection

Shihao Li, Keke Zhang, Wenran Du, Fuhua Li

Subject: Biology And Life Sciences, Aquatic Science Keywords: penaeid shrimp; hemocyte; disease-resistant; Vibrio parahaemolyticus

Online: 23 April 2023 (08:27:29 CEST)

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Preprint REVIEW | doi:10.20944/preprints202312.2068.v1

Algae in Recreational Waters

Federica Valeriani, Federica Carraturo, Giusy Lofrano, Veronica Volpini, Michela Giovanna Izzo, Agnese Bruno, Marco Guida, Vincenzo Romano Spica

Subject: Biology And Life Sciences, Aquatic Science Keywords: Algae,; Cyanobacteria; Recreational water; Swimming pool; SPA; Water treatments; Monitoring; Climate change

Online: 27 December 2023 (08:47:36 CET)

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Preprint ARTICLE | doi:10.20944/preprints202305.1089.v1

Lionfish Diet Composition in Three Study Sites in the Aegean Sea (Southern Crete, and Kastellorizo and Nysiros Islands): An Invasive Generalist?

Ioannis E. Batjakas, Athanasios Evangelopoulos, Maria Giannou, Sofia Pappou, Eleytheria Pappanikola, Maria Atsikvasi, Dimitrios Poursanidis, Chrysoula Gubili

Subject: Biology And Life Sciences, Aquatic Science Keywords: Pterois miles; lionfish; diet; Gobiidae; Scorpaenidae; Scyllaridae; invasive species; Aegean Sea

Online: 16 May 2023 (05:04:45 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202306.0097.v1

Hematological and Physiological Responses under Repeated Acute Hypoxia in Rainbow Trout (Onchorynchus mykiss)

Nuria Ruiz, Irene García-Meilán, Ali Reza Khansari, Mariana Teles, Josep Pastor, Lluis Tort

Subject: Biology And Life Sciences, Aquatic Science Keywords: repeated stress; hematology; fish; rainbow trout; hypoxia; dissolved oxygen concentration; RDW; cortisol

Online: 1 June 2023 (13:40:17 CEST)

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Preprint REVIEW | doi:10.20944/preprints202310.2056.v1

Growth Strategy for Artificial Japanese Eel (Anguilla japonica) Larvae in Aquaculture

Yutaka Kawakami

Subject: Biology And Life Sciences, Aquatic Science Keywords: Japanese eel; leptocephali; seedling production; time-limit theory

Online: 31 October 2023 (11:00:37 CET)

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Preprint REVIEW | doi:10.20944/preprints202305.1560.v1

“Omics” Techniques Used in Marine Biofouling Studies

Sergey Dobretsov, Daniel Rittschof

Subject: Biology And Life Sciences, Aquatic Science Keywords: fouling; antifouling; metagenomic; metabolomic; transcriptomic; proteomic

Online: 23 May 2023 (04:21:32 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202307.0935.v1

Growth and Prevalence of Antibiotic-Resistant Bacteria in Waste from Pagla Treatment Plant

Nurul Huda, Gazi Nurun Nahar, Tania Hossain, Asma Rahman, Ahmed Abu Rus’d, Tunjina Ahmed

Subject: Biology And Life Sciences, Aquatic Science Keywords: antibiotic-resistant; doxycycline; microorganisms; ecosystems

Online: 14 July 2023 (07:57:19 CEST)

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Preprint COMMUNICATION | doi:10.20944/preprints202402.1338.v1

Humane slaughter in Mediterranean sea bass and bream aquaculture: Farm characteristics, stakeholder views, and policy implications

Koen van Pelt, Max Carpendale, Ren Ryba

Subject: Biology And Life Sciences, Aquatic Science Keywords: Dicentrarchus labrax, dry stunning, European Union, Sparus aurata, Turkey, wet stunning

Online: 23 February 2024 (09:52:33 CET)

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Preprint ARTICLE | doi:10.20944/preprints202308.1803.v1

Species Distribution Model (SDM) Predicts the Spread of Invasive Nile Tilapia in the Sensitive Inland Water System of the Southeastern Arabian Peninsula Under Climate Change

Hamid Reza Esmaeili, Zohreh Eslami

Subject: Biology And Life Sciences, Aquatic Science Keywords: freshwater ecosystems; pollution; bioinvasion; co-invasion; establishment; ensemble model

Online: 28 August 2023 (03:48:06 CEST)

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In the present study, we implemented species distribution models (SDMs) to determine the potential invasive distribution range of a cichlid fish, Nile tilapia, Oreochromis niloticus, in a very sensitive inland water system in the southeastern Arabian Peninsula where it is now established and spreading. By using the “Biomod2” package, and the latest CMIP6 climate data, four single species distribution models and EM were built, and the results were evaluated by operating characteristic (ROC) and the true skill statistic (TSS). Based on the relative importance of climate factor analysis the mean diurnal range and precipitation seasonality were useful predictors of habitat suitability for O. niloticus. The response curve analysis indicated that the presence probability of O. niloticus decreased with increasing mean diurnal range and decreasing precipitation seasonality. The suitable distribution ranges for O. niloticus in the studied area were mainly distributed in the northeast of this region. The ensemble model results specified a significant impact of climate change on O. niloticus distribution, so highly suitable areas for this species will be reduced, while areas with low to moderate suitability increase slightly or remain unchanged. Based on the available data, Nile tilapia fulfills all four criteria to be considered as an invasive species: colonization in a new area, direct or indirect impacts of anthropological activity on its distribution range, geographical discontinuity between its native area (Africa) and the Arabian Peninsula (remote dispersal), and finally, its successful breeding in situ without human assistance resulting establishment of this biopollutant. Species distribution modeling provides insights into the factors that can reduce the risks and negative impacts of this biological pollutant on aquatic ecosystems of the southeastern Arabian Peninsula which harbors about 22 recognized fish species in 16 genera, 10 families, seven orders, and a class including 20 natives (seven endemic) species.

Preprint ARTICLE | doi:10.20944/preprints202309.0142.v1

Bacterial Isolated from Oreochromis niloticus and Possible Use as Probiotic

Luciana Yuri Sato, Danielle de Carla Dias, Mariene Miyoko Natori, Miguel Frederico Fernandez Alarcon, Maria José Ranzani-Paiva, Luara Lucena Cassiano, Carlos Massatoshi Ishikawa, Mateus Cardoso Guimarães, Miguel Angel Moriñigo, Silvana Tapia-Paniagua, Erna Elisabeth Bach, Ricardo Harakava, Leonardo Tachibana

Subject: Biology And Life Sciences, Aquatic Science Keywords: immunology; growth performance; nutrition; microbiology; hematology

Online: 4 September 2023 (08:33:34 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202309.1296.v1

Dynamics of Sustainable Fisheries: A Mathematical Approach using Lotka-Volterra Equations

Ashiribo WUSU, Olusola Olabanjo

Subject: Biology And Life Sciences, Aquatic Science Keywords: Sustainable; Fisheries; Predator; Prey; Lotka-Volterra Equations

Online: 20 September 2023 (02:44:49 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202310.0602.v2

Analysis of the Acute Toxicity Effects of Bifenthrin on Chinese Giant Salamander (Andrias davidianus) Larvae

JING SONG, Fengyun Huang, Kun Ma, Kai Tan, Dan Lv, Kiyoshi Soyano, Kai Zhao

Subject: Biology And Life Sciences, Aquatic Science Keywords: bifenthrin; Chinese giant salamander; RNAseq; oxidative stress; DNA damage

Online: 13 October 2023 (11:26:09 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202305.1757.v1

The Historical Trends and Recent Collapse of European Eel, Anguilla anguilla Fishery in the Neretva Estuary (Eastern Adriatic, Croatia)

Branko Glamuzina

Subject: Biology And Life Sciences, Aquatic Science Keywords: European eel; Croatia; historical and recent catch; Neretva Estuary

Online: 25 May 2023 (07:46:10 CEST)

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Preprint REVIEW | doi:10.20944/preprints202308.2168.v1

History and Prospects for Sustainability and Circularity of the Windowpane Oyster Placuna placenta Fishery in the Philippines

Jessica M Rustia, Judith P Antonino, Ravelina R Velasco, Marcelo A Lima, Edwin A Yates, David G Fernig

Subject: Biology And Life Sciences, Aquatic Science Keywords: Mollusc; bivalve; Windowpane oyster; Placuna placenta; by-product; food; bio-active compounds; circular economy

Online: 31 August 2023 (10:08:16 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202312.2030.v1

New Myzostomids (Annelida) in Symbiosis with Feather Stars in the Shallow Waters of the South China Sea

Alexander Isaychev, Dimitry Schepetov, Yutong Zhou, Andrei V. Kitashov, Temir A. Britayev, Viatcheslav N. Ivanenko

Subject: Biology And Life Sciences, Aquatic Science Keywords: Myzostomida; symbiotic polychaetes; crinoids; Hainan Island; marine biodiversity; echinoderm symbionts; SCUBA; Sanya; new species discovery

Online: 27 December 2023 (10:08:27 CET)

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Preprint ARTICLE | doi:10.20944/preprints202309.1870.v1

Exploring the Effects of Rearing Densities on Epigenetic Modifications in the Zebrafish Gonads

Alejandro Valdivieso, Marta Caballero-Huertas, Javier Moraleda-Prados, Francesc Piferrer, Laia Ribas

Subject: Biology And Life Sciences, Aquatic Science Keywords: stress; gonad; sex; methylation; masculinization; rearing

Online: 27 September 2023 (10:46:16 CEST)

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Preprint REVIEW | doi:10.20944/preprints202308.1158.v1

Spatial Variability in Sea Ice Algae Primary Production Rates and Biomasses (Chl a) in the Canadian Arctic—Greenland Region: A Review

Laura Martin, Brian Sorrell, Dorte Haubjerg Søgaard, Lars Chresten Lund-Hansen

Subject: Biology And Life Sciences, Aquatic Science Keywords: sea ice algae primary production; Chl a; snow and sea ice thickness; nutrients; oceanography; Canadian Arctic Archipelago; Greenland

Online: 16 August 2023 (10:48:33 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202310.1107.v1

When and Where to Restore Coral Reefs: The Key Role of Pre-Launch Assessment to Reef Restoration

Dylan Tiu, Avigdor Abelson

Subject: Biology And Life Sciences, Aquatic Science Keywords: coral recruitment; marine life

Online: 18 October 2023 (08:07:07 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202312.0897.v1

The Cent Fonts aquifer: an overlooked subterranean biodiversity hotspot in a stygobiont-rich region

Vincent Prié, Cédric Alonso, Claude Bou, Diana Maria Paola Galassi, Pierre Marmonier, Marie-José Dole-Olivier

Subject: Biology And Life Sciences, Aquatic Science Keywords: stygobiont, troglobiont, conservation, karst, subterranean diversity, conservation, water abstraction

Online: 12 December 2023 (13:14:12 CET)

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Preprint ARTICLE | doi:10.20944/preprints202312.0121.v1

Assessment of Full-Fat Tenebrio molitor as Feed Ingredient for Solea senegalensis: Effects on Growth Performance and Lipid Profile

Ismael Hachero Cruzado, Monica B. Betancor, Antonio Jesús Coronel Dominguez, Manuel Manchado, Francisco Javier Alarcón-López

Subject: Biology And Life Sciences, Aquatic Science Keywords: Tenebrio molitor; insect meal; sustainable protein sources, Solea senegalensis, fatty acids profile

Online: 5 December 2023 (04:44:23 CET)

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Preprint ARTICLE | doi:10.20944/preprints202403.0399.v1

Screening of Microalgae for Bioactivity with Antiviral, Antibacterial, Anti-inflammatory, and Anti-cancer Assays

Jorge Hernández-Urcera, Alejandro Romero, Pedro Cruz, Vítor Vasconcelos, Antonio Figueras, Beatriz Novoa, Francisco Rodríguez

Subject: Biology And Life Sciences, Aquatic Science Keywords: Microalgae; Bioactive compounds; Zebrafish; Inflammation; Antiviral activity; Antibacterial activity; Anti-cancer activity

Online: 7 March 2024 (08:07:34 CET)

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Preprint REVIEW | doi:10.20944/preprints202402.1077.v1

Climate Change and the Platypus: A Scientific Analysis

Martine Mussies

Subject: Biology And Life Sciences, Aquatic Science Keywords: climate change; platypus; global warming

Online: 20 February 2024 (08:01:10 CET)

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Preprint ARTICLE | doi:10.20944/preprints202307.0571.v1

The Physiological Eﬀects of Some Stress Indicators in Rainbow Trout Raised in Diﬀerent Systems

Alexandru Usturoi, Benone Păsărin, Marius-Giorgi Usturoi, Mădălina Davidescu, Răzvan-Mihail Radu-Rusu, Daniel Simeanu

Subject: Biology And Life Sciences, Aquatic Science Keywords: rainbow trout; rearing system; stress factors; hormones

Online: 10 July 2023 (09:43:51 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202305.1049.v1

Relationship Between Liver Histology and High Temperature on the Recovery Following Hepatectomy and Laparotomy in Sturgeon, Acipenser ruthenus

Gyoungsik Kang, Won-Sik Woo, Kyung-Ho Kim, Ha-Jeong Son, Min-Young Sohn, Hee Jeong Kong, Young-Ok Kim, Dong-Gyun Kim, Eun Mi Kim, Eun Soo Noh, Chan-Il Park

Subject: Biology And Life Sciences, Aquatic Science Keywords: Hepatectomy; laparotomy; sturgeon; fish surgery; sturgeon histology; fish suturing

Online: 15 May 2023 (13:58:36 CEST)

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Preprint REVIEW | doi:10.20944/preprints202306.1644.v1

The Mediterranean Killifish Aphanius Fasciatus (Valenciennes, 1821) (Teleostei: Cyprinodontidae) as a Sentinel Species of the Quality of Transitional Water Environments: Insights and Perspectives

Vincenzo Zonno, Roberta Schiavone, Elena Giordano, Amilcare Barba, Genuario Belmonte, Tiziano Verri

Subject: Biology And Life Sciences, Aquatic Science Keywords: Aphanius fasciatus; Transitional waters; lagoon; biomarker; genomic

Online: 22 June 2023 (16:48:45 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202306.1226.v1

Comparative Morphology of the Digestive Tract of Anabantoidei Fishes Inhabiting Asian and African Freshwaters

Dobrochna Adamek-Urbańska, Maciej Kamaszewski, Wiktoria Wiechetek, Rafał Wild, Julia Boczek, Adrian Szczepański, Jerzy Śliwiński

Subject: Biology And Life Sciences, Aquatic Science Keywords: labirynth fish; digestive tract; fish morphology; feeding

Online: 16 June 2023 (10:53:25 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202402.1144.v1

Linking Wetland Ecosystem Services to Fish Genetic Resources with Special Reference to Hilsa Shad (Tenualosa ilisha): A Novel Study from Northeastern Bangladesh

Atiqur Rahman Sunny, Md. Arifur Rahman, Md. Nazmul Hasan, Jeba Faizah Rahman, Sharif Ahmed Sazzad, Md. Faruque Miah, Md. Ashrafuzzaman, Shamsul Haque Prodhan

Subject: Biology And Life Sciences, Aquatic Science Keywords: Wetland; Ecosystem services; Genetic diversity; Hilsa; Bangladesh

Online: 20 February 2024 (12:44:47 CET)

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Preprint ARTICLE | doi:10.20944/preprints202306.0727.v1

Evaluating Underwater Light Availability for Phytoplankton: Mean Light Intensity in the Mixed Layer versus Attenuation Coefficient

Rita B. Domingues, Ana B. Barbosa

Subject: Biology And Life Sciences, Aquatic Science Keywords: phytoplankton; light measurements; light limitation; coastal ecosystems

Online: 9 June 2023 (14:08:39 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202309.1114.v1

Physical and Biological Stream Health in an Agricultural Watershed After 30+ Years of Targeted Conservation Practices

Will L Varela, Neal D Mundahl, Silas Bergen, David F Staples, Jennifer Cochran-Biederman, Cole Weaver

Subject: Biology And Life Sciences, Aquatic Science Keywords: agriculture; stream health; riparian zone; coldwater; trout

Online: 18 September 2023 (08:44:08 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202311.0561.v1

A Deep Survey of Fish Health for the Recognition of Useful Biomarkers to Monitor Water Pollution

Graziella Orso, Roberta Imperatore, Elena Coccia, Gianluca Rinaldi, Domenico Cicchella, Marina Paolucci

Subject: Biology And Life Sciences, Aquatic Science Keywords: European Anguilla; Brown trout; river pollution; histopathological biomarkers; liver; blood; spleen

Online: 9 November 2023 (06:57:26 CET)

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Preprint BRIEF REPORT | doi:10.20944/preprints202307.2067.v1

Molecular Cloning and Gene Expression of Type I Suppressor of Cytokine Signaling 6 and 7 (SOCS6 and SOCS7) in White Leg Shrimps (Litopenaeus vannamei)

CWR Gunasekara, WSP Madhuranga, Jiye Lee, Chan-Hee Kim

Subject: Biology And Life Sciences, Aquatic Science Keywords: Litopenaeus vannamei; Suppressor of cytokine signaling; Gene expression; JAK-STAT signaling pathway

Online: 31 July 2023 (10:48:31 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202401.0897.v1

Three New Species of the Freshwater Shrimp Genus Caridina from Australia

Werner Klotz, Thomas Von Rintelen, Kristina Von Rintelen

Subject: Biology And Life Sciences, Aquatic Science Keywords: Crustacea; Decapoda; Atyidae; Australia

Online: 11 January 2024 (11:27:34 CET)

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Preprint ARTICLE | doi:10.20944/preprints202304.1215.v1

Dietary Supplementation of a Mixture of Nucleotides, β-Glucan and Vitamins C and E Improved the Growth and Health Performance of Olive Flounder,Paralichthys olivaceus

Nalin Medagoda, Rutchanee Chotikachinda, Mirasha Hasanthi, Kyeong-Jun Lee

Subject: Biology And Life Sciences, Aquatic Science Keywords: Nucleotides; Saccharomyces cerevisiae derived β-glucan; Vitamins C and E; Innate-immunity; Olive flounder

Online: 29 April 2023 (05:30:03 CEST)

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Preprint COMMUNICATION | doi:10.20944/preprints202308.0596.v1

A Knowledge Update of Rarely Reported Crustacean Species, Rissoides pallidus (Giesbrecht, 1910) (Stomatopoda, Squillidae), Caught in the Strait of Sicily Waters (Central Mediterranean Sea)

Giacomo Sardo, Michele Luca Geraci, Fabio Falsone, Charles Odilichukwu R. Okpala, Danilo Scannella, Antonino Titone, Sergio Vitale

Subject: Biology And Life Sciences, Aquatic Science Keywords: crustacean; stomatopod; mantis shrimp; muddy bottom; trawl fisheries; uncommon species; spatial distribution

Online: 8 August 2023 (07:15:37 CEST)

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Preprint COMMUNICATION | doi:10.20944/preprints202306.1486.v1

Inactivated Tilapia Lake Virus Vaccine Formulated With MontanideTM Isa 763A Vg Adjuvant Resulted in Inadequate Protection and Poor Immunity in Vaccinated Nile Tilapia

Thao Thu Mai, Kim D. Thompson, Saengchan Senapin, Channarong Rodkhum, Ha Thanh Dong

Subject: Biology And Life Sciences, Aquatic Science Keywords: tilapia lake virus; TiLV; Nile tilapia; vaccine; adjuvants; MontanideTM ISA 763A VG

Online: 21 June 2023 (05:50:45 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202305.0288.v1

The Dynamics of Gene Expression Unraveling the Immune Response of Macrobrachium rosenbergii Infected by Aeromonas veronii

Xin Peng, Xuan Lan, Zhenxiao Zhong, Haihui Tu, Xinyi Yao, Qiongying Tang, Zhenglong Xia, Guoliang Yang, Shaokui Yi

Subject: Biology And Life Sciences, Aquatic Science Keywords: Transcriptome; Differentially expressed genes; Macrobrachium rosenbergii; Aeromonas veronii

Online: 5 May 2023 (03:43:58 CEST)

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Preprint REVIEW | doi:10.20944/preprints202312.0368.v1

Genetics and Genomics of Infectious Diseases in Key Aquaculture Species

Nguyen Hong Nguyen

Subject: Biology And Life Sciences, Aquatic Science Keywords: genetic basis; genomic architecture; disease tolerance; population resilience and climate change

Online: 6 December 2023 (08:34:59 CET)

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Diseases pose a significant and pressing concern for the sustainable development of the aquaculture sector, particularly as their impact continues to grow due to climatic shifts such as rising water temperatures. While various approaches, ranging from biosecurity measures to vaccines, have been devised to combat infectious diseases, their efficacy is disease- and species-specific and contingent upon a multitude of factors. The field of genetics and genomics offer effective tools to control and prevent disease outbreaks in aquatic animal species. In this study, we present the key findings from our recent research, focusing on the genetic resistance to three specific diseases: White Spot Syndrome Virus WSSV) in white shrimp, Bacterial Necrotic Pancreatitis (BNP) in striped catfish and skin fluke (a parasitic ailment) in yellowtail kingfish. Our investigations reveal that all three species possess substantial heritable genetic components for disease resistant traits, indicating their potential responsiveness to artificial selection in genetic improvement programs tailored to combat these diseases. Also, we observed a high genetic association between disease traits and survival rates. Through selective breeding aimed at enhancing resistance to these pathogens, we achieved substantial genetic gains, averaging 10% per generation. These selection programs also contributed positively to the overall production performance and productivity of these species. Although the effects of selection on immunological traits or immune responses were not significant in white shrimp, they yielded favourable results in striped catfish. Furthermore, our genomic analyses, including shallow genome sequencing of pedigreed populations, enriched our understanding of the genomic architecture underlying disease resistance traits. These traits are primarily governed by a polygenic nature, with numerous genes or genetic variants, each with small effects. Leveraging a range of advanced statistical methods, from mixed models to machine and deep learning, we developed prediction models that demonstrated moderate to high levels of accuracy in forecasting these disease-related traits. In addition to genomics, our RNA-seq experiments identified several genes that undergo upregulation in response to infection or viral loads within the populations. Preliminary microbiome data, while offering limited predictive accuracy for disease traits in one of our studied species, underscore the potential for combining such data with genome sequence information to enhance predictive power for disease traits in our populations. Lastly, this paper briefly discusses the roles of precision agriculture systems, AI algorithms, and outlines the path for future research to expedite the development of disease-resistant genetic lines tailored to our target species. In conclusion, our study underscores the critical role of genetics and genomics in fortifying the aquaculture sector against the threats posed by diseases, paving the way for more sustainable and resilient aquaculture development.

Preprint ARTICLE | doi:10.20944/preprints202312.0238.v1

From Microscale Interactions to Macroscale Patterns in Copepod-Crinoid Symbiosis

Oksana A. Korzhavina, Natalia V. Gubareva, Andrey V. Kitashov, Temir A. Britayev, Viatcheslav N. Ivanenko

Subject: Biology And Life Sciences, Aquatic Science Keywords: Copepod Associations; Symbiotic Relationships; Crinoids; Comatulida; Marine Biodiversity; Marine Ecology; Marine Invertebrates; Host-Symbiont Interactions; Marine Parasitology

Online: 5 December 2023 (11:08:36 CET)

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Preprint BRIEF REPORT | doi:10.20944/preprints202306.2238.v1

A First Study on Home Range Characteristics of Common Dolphin in Korean Waters: A Study Using Data Collected During the Past 20 Years

Joon-Taek Yoo, Kyum-Joon Park, Kyunglee Lee, Dasom Lee

Subject: Biology And Life Sciences, Aquatic Science Keywords: home range; minimum convex polygon; kernel density estimation; common dolphin; Korean waters

Online: 30 June 2023 (12:22:25 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202404.0062.v1

Evaluation of Gamma-Aminobutyric Acid (GABA) as a Functional Feed Ingredient on Growth Improvement, Stress Reduction, Immune Enhancement and Disease Resistance in Olive Flounder (Paralichthys olivaceus) under High Stocking Density

Jinho Bae, Mohammad Moniruzzaman, Hyeong-Woo Je, Seunghan Lee, Wonsuk Choi, Taesun Min, Kang-Woong Kim, Sungchul C. Bai

Subject: Biology And Life Sciences, Aquatic Science Keywords: γ-aminobutyric acid; crowding effect; growth performance; innate immunity; disease resistance; olive flounder

Online: 1 April 2024 (12:23:01 CEST)

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Aquaculture is an important source of food for the growing global population. To meet the increasing demand for fish, intensive aquaculture methods are commonly used. However, these methods can lead to stress and disease in fish, which can result in significant economic losses. Gamma-aminobutyric acid (GABA) is a non-protein amino acid that is found in the brain and central nervous system of animals as inhibitory neurotransmitter. It has been shown to have a variety of physiological functions, including stress reduction and immune enhancement. This study investigated the effects of dietary supplementation of GABA on growth, serum biochemistry, innate immunity and disease resistance in juvenile olive flounder (Paralichthys olivaceus) challenged with Edwardsiella tarda under high stocking density. A control diet and three experimental diets were prepared, with 150 mg/kg (GABA150), 200 mg/kg (GABA200), and 250 mg/kg (GABA250) of GABA added to each diet, respectively. The actual GABA content of the experimental diets was analyzed and found to be 63.9 mg/kg (CON), 231.3 mg/kg (GABA150), 291.6 mg/kg (GABA200), and 323.9 mg/kg (GABA250). Each experimental diet was fed to olive flounder with an initial weight of 12.75 g ± 0.3 g in 40 L tanks at two stocking densities: normal density (20 fish/tank) and high density (40 fish/tank). The experiment was conducted in triplicate for each diet and stocking density. The water temperature was maintained at 17.5 ± 1℃ and the salinity at 33 ± 1 ppt. After 8 weeks of feeding trial, growth, feed utilization, whole-body proximate composition, blood analysis, non-specific immune response, and challenge test were performed. There were no significant difference in weight gain and specific growth rate among the GABA concentrations and density × GABA concentration interaction groups. However, the low-density groups showed significantly higher values than the high-density groups (P < 0.05). There was no significant difference in feed efficiency and protein efficiency ratio among all groups. Moreover, there was no significant difference in the whole-body general composition analysis (P > 0.05). In the hematological analysis, there was no significant difference in cortisol in terms of diet and density × GABA concentration interaction, but the high-density experimental group showed a significantly higher value. Blood GABA significantly increased in proportion to the addition amount regardless of the density group (P<0.05). Superoxide dismutase activity in the non-specific immune response showed that the GABA-added experimental group had a significantly higher value than the control group, but there was no significant effect of the density densities or density × GABA concentration interaction (P<0.05). Myeloperoxidase activities in fish fed the GABA200 and GABA250 diets showed significantly higher values, and a density × GABA concentration interaction effect was observed (P<0.05). Lysozyme activity was significantly higher in the GABA150 group than in the CON, GABA200, and GABA250 groups (P < 0.05). After 15 days of challenge test by intraperitoneal injection of Edwardsiella tarda, the cumulative survival rates of the GABA150, GABA200, and GABA250 groups were significantly higher than that of the CON group (P < 0.05). The results suggested that the optimal dietary GABA level for juvenile olive flounder culture is 150 mg/kg, regardless of rearing density, to enhance growth, immune function and disease resistance.

Preprint ARTICLE | doi:10.20944/preprints202305.1977.v1

The Discovery of Potentially Toxigenic Gloeotrichia CF. natans (Cyanobacteria) in the Continuous Permafrost Zone of Buotama River, Lena Pillars Nature Park in Yakutia, Was Made through the Observation of Epilithic Macrocolonies

Viktor Gabyshev, Denis Davydov, Anna Vilnet, Sergeу Sidelev, Ekaterina Chernova, Sophia Barinova, Olga Gabysheva, Zoya Zhakovskaya

Subject: Biology And Life Sciences, Aquatic Science Keywords: benthic; macrocolonies; cyanobacteria; Gloeotrichia; Nostocales; cryolithozone; Yakutia

Online: 29 May 2023 (08:58:37 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202310.1247.v1

Growth Rate and Biological Production of Yellow Eel Anguilla anguilla and Production of Silver Eel and the Number of Glass Eel to Fulfill the Danish EMP

Gorm Rasmussen, Michael I Pedersen

Subject: Biology And Life Sciences, Aquatic Science Keywords: otolith; ageing; natural mortality; linear growth; growth rate; silver eel production; biological production of yellow eel; von Bertalanffy; EMP; stocking

Online: 19 October 2023 (09:37:03 CEST)

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Preprint COMMUNICATION | doi:10.20944/preprints202307.1899.v1

Protecting Complex Biodiversity Systems: Ciliophora Endosymbionts of the Threatened Freshwater Mussel Species Unio crassus

Katarzyna Zając, Monika Mioduchowska, Tadeusz Zając

Subject: Biology And Life Sciences, Aquatic Science Keywords: Ciliophora; DNA barcoding; NGS sequencing; endosymbionts; parasites; freshwater mussels Unionidae

Online: 27 July 2023 (10:22:20 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202402.0295.v1

Ghost Gears in the Gulf of Gabès: Alarming Situation and Sustainable Solution Perspectives

Hana Ghaouar, Wiem Boussellaa, Imed Jribi

Subject: Biology And Life Sciences, Aquatic Science Keywords: ALDFG; Gulf of Gabès; Interviews; Impact; Mapping; Sustainability

Online: 5 February 2024 (15:11:01 CET)

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Preprint ARTICLE | doi:10.20944/preprints202309.1792.v1

Phytoplankton Life as an Indicator of the Reservoir Ecosystem State under the Influence of Thermal Pollution from the Electrical Power Plant in European North

Elena Patova, Julia Shabalina, Michael Sivkov, Sophia Barinova

Subject: Biology And Life Sciences, Aquatic Science Keywords: phytoplankton; diversity; bioindicators; water quality indices; thermal impact; Pechorskoe Reservoir; European North

Online: 27 September 2023 (04:24:56 CEST)

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Preprint REVIEW | doi:10.20944/preprints202309.2005.v1

A Probabilistic Methodology for Determining Collision Risk of Marine Animals with Tidal Energy Turbines

Andrea Copping, Dan Hasselman, Charles Bangley, Joel Culina, Max Carcas

Subject: Biology And Life Sciences, Aquatic Science Keywords: Risk assessment; tidal stream energy; environmental effects; collision risk; marine renewable energy

Online: 28 September 2023 (13:04:49 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202311.0543.v1

Dietary Protein Source Affects the Interplay between Gut Microbiota and Host Performance in Nile Tilapia

Gabriella Do Vale Pereira, Carla Teixeira, José Couto, Jorge Dias, Paulo Rema, Ana Teresa Gonçalves

Subject: Biology And Life Sciences, Aquatic Science Keywords: protein sources; gut health; microbiome; Oreochromis niloticus; amino acid intake

Online: 8 November 2023 (11:36:54 CET)

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Preprint ARTICLE | doi:10.20944/preprints202312.0522.v1

Effects of Dietary Plant Protein Replacement by Insect and Poultry By-Product Meals on Liver Health and Serum Metabolites of Sea Bream (Sparus aurata) and Sea Bass (Dicentrarchus labrax)

Valeria Donadelli, Patrizia Di Marco, Alberta Mandich, Maria Grazia Finoia, Gloriana Cardinaletti, Tommaso Petochi, Alessandro Longobardi, Emilio Tibaldi, Giovanna Marino

Subject: Biology And Life Sciences, Aquatic Science Keywords: liver histology; liver index; sustainable feed; poultry by-product meal; Hermetia illucens meal; plant-protein; lipid metabolism; fish welfare; blood biochemistry

Online: 7 December 2023 (11:57:53 CET)

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Preprint REVIEW | doi:10.20944/preprints202312.0039.v1

The Crayfish Plague Pathogen Aphanomyces astaci in Ireland.

Daniel J. Brady, Rossa Meade, Julian D. Reynolds, Andreas Vilcinskas, Kathrin Theissinger

Subject: Biology And Life Sciences, Aquatic Science Keywords: crayfish plague; Aphanomyces astaci; Austropotamobius pallipes; invasive species; Ireland

Online: 1 December 2023 (05:31:53 CET)

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Preprint COMMUNICATION | doi:10.20944/preprints202308.0033.v1

Morphometric Analysis of the Critically Endangered Fan Mussel (Pinna nobilis L.) in Maliakos Gulf (Central Aegean)

I. E. Tsamadias, D.D. Rizou, D. K. Moutopoulos, A. Lattos, J.A. Giantsis, B. Michaelidis, J. A. Theodorou

Subject: Biology And Life Sciences, Aquatic Science Keywords: Total Height; wet weight; Pinnidae; Pinna nobilis; Maliakos; Greece

Online: 1 August 2023 (10:53:02 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202311.1445.v1

Not a Silent Invasion: The Reaction of European Naturalists to the Spread of Zebra Mussel (Dreissena polymorpha) in the 19th—Early 20th Century

Maxim V. Vinarski

Subject: Biology And Life Sciences, Aquatic Science Keywords: zebra mussel; dispersal; natural history, citizen science, invasion ecology, history of zoology

Online: 22 November 2023 (16:51:31 CET)

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Preprint ARTICLE | doi:10.20944/preprints202306.1486.v2

Inactivated tilapia lake virus vaccine formulated with MontanideTM ISA 763A VG adjuvant resulted in inadequate protection and poor immunity in vaccinated Nile tilapia

Thao Thu Mai, Kim D. Thompson, Saengchan Senapin, Channarong Rodkhum, Ha Thanh Dong

Subject: Biology And Life Sciences, Aquatic Science Keywords: tilapia lake virus; TiLV; Nile tilapia; vaccine; adjuvants; MontanideTM ISA 763A VG

Online: 10 July 2023 (05:03:59 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202308.1502.v1

Is a Fishing Moratorium Needed in Lake Honghu, Southern China? A Stomach Content Analysis of the Short-Jawed Tapertail Anchovy Coilia brachygnathus (Clupeiformes: Engraulidae)

Abelneh Yimer Melaku, Liang Cao, Jiang-Zhong Shen, E Zhang

Subject: Biology And Life Sciences, Aquatic Science Keywords: Anchovy; omnivore; plant-origin food; fisheries management; fish ban

Online: 22 August 2023 (07:28:17 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202309.1848.v1

Description and Characterization of the Odontella aurita OAOSH22, a Marine Diatom Rich in Eicosapentaenoic Acid and Fucoxanthin, Isolated from Osan Harbor, Korea

Sung Min An, Kichul Cho, Eun Song Kim, Hyunji Ki, Grace Choi, Nam Seon Kang

Subject: Biology And Life Sciences, Aquatic Science Keywords: Carotenoid pigments; Fatty acids; Odontella aurita; Optimal growth condition; Ultrastructure; 18S rDNA

Online: 30 September 2023 (19:17:43 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202402.0849.v1

The Prevalence of Necrotic Black Spot in Cancer pagurus (L.) within a UK Voluntary Marine Reserve.

Kevin Scott, Petra Harsanyi

Subject: Biology And Life Sciences, Aquatic Science Keywords: Cancer pagurus; disease; fisheries; black spot; fisheries management

Online: 15 February 2024 (09:44:45 CET)

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Biology and Life Sciences