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Preprint ARTICLE | doi:10.20944/preprints202404.1181.v1

The Expansion of Sirtuin Gene Family in Gilthead Sea Bream (Sparus aurata). Phylogenetic, Syntenic, and Functional Insights Across the Vertebrate/Fish Lineage

Paula Simó-Mirabet, Fernando Naya-Català, Josep Alvar Calduch-Giner, Jaume Pérez-Sánchez

Subject: Biology And Life Sciences, Aquatic Science Keywords: Gilthead sea bream; synteny; gene duplication; neo-functionalization; adaptive plasticity.; sirtuin; phylogeny

Online: 18 April 2024 (11:10:58 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202404.1091.v1

River Habitat Survey (RHS) method in the assessment of synecological characteristics of macroinvertebrates: Aquatic Heteroptera of the River Krąpiel valley

Grzegorz Michoński, Andrzej Zawal, Grzegorz Tończyk, Wojciech Płaska, Joanna Pakulnicka, Vladimir Pešić, Michał Grabowski, Aleksandra Bańkowska, Agnieszka Szlauer-Łukaszewska, Robert Stryjecki, Magdalena Achrem, Iga Lewin, Zuzanna Krzynówek, Maja Krakowiak, Stanisław Musielak, Tapas Chatterjee, Edyta Stępień-Zawal

Subject: Biology And Life Sciences, Aquatic Science Keywords: hydromorphology; hydromorphological indexes; water bugs; landscape scales, physico--chemical parameters

Online: 17 April 2024 (07:51:31 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202404.0543.v1

Modulatory Effect of Three Intestinally Isolated Dietary Probiotic Bacteria in Low Fish Meal Diets on Growth, Feed Utilization, Serum Biochemistry, Innate Immunity, Gut Health and Resistance Against Bacterial Challenge in Juvenile Olive Flounder Paralichthys olivaceus

Wonsuk Choi, Mohammad Moniruzzaman, Jinho Bae, Seunghan Lee, Taesun Min, Seunghyung Lee, Sungchul C. Bai

Subject: Biology And Life Sciences, Aquatic Science Keywords: probiotics; growth; immune genes; histology; disease resistance; olive flounder

Online: 9 April 2024 (07:44:20 CEST)

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Probiotics play an important role as immunostimulants in improving growth and health status in fish. However, little is known on the effects of probiotics when fish offered a low fish meal diet. This study evaluated the effects of three probiotic bacteria isolated from the fish intestine to replace antibiotics in a reduced fish meal diet fed to the juvenile olive flounder Paralichthys olivaceus. A basal diet without feed additives was used as a control (CON) and five other diets were formulated by supplementation with Bacillus subtilis WB60 (BSWB60) at 1×108 CFU/g, B. subtilis SJ10 (BSSJ10) at 1×108 CFU/g, Enterococcus faecium SH30 (EFSH30) at 1×107 CFU/g, amoxicillin (AMO) at 4 g/kg and oxytetracycline (OTC) at 4 g/kg of the basal diet. Triplicate groups of 25 fish averaging 12.1±0.09 g (mean±SD) were fed one of the six experimental diet groups for 8 weeks. Then, 45 fish from each group were intraperitoneally injected with the pathogenic bacteria, Edwardsiella tarda, and mortality was recorded for 14 days. At the end of the feeding trial, weight gain, specific growth rate and feed efficiency of fish fed the BSWB60 diet were significantly greater than those of fish fed the CON, OTC and AMO diets (P < 0.05). Furthermore, feeding efficiency and protein efficiency ratio of fish fed the BSWB60 diet were significantly greater than those of fish fed the CON, OTC and AMO diets. However, there were no significant differences in survival, hepatosomatic indices, viscerosomatic indices and condition factors among the fish fed the experimental diets. The whole-body proximate composition of the fish was unaffected by the dietary treatments. The serum biochemistry parameters, such as aspartate aminotransferase levels were significantly greater in fish fed the BSSJ10 diet than in those fed the BSWB60 diet. However, serum alanine aminotransferase, glucose and total protein levels were not significantly affected by the experimental diets. The lysozyme activity of fish fed the BSSJ10, BSWB60 and EFSH30 diets was significantly greater than that of the CON, OTC and AMO diets. The myeloperoxidase activity of fish fed the BSWB60 diet was significantly greater than that of the fish fed the CON and AMO diets. The flounder growth hormone levels of fish fed the BSSJ10, BSWB60, EFSH30 and AMO diets were significantly greater than that of the fish fed the CON diet. The interleukin 1β (IL-1β) gene expression levels in fish fed the BSSJ10 and EFSH30 diets were significantly greater than those in fish fed the CON, OTC and AMO diets. The interleukin 10 (IL-10) gene expression levels in fish fed the BSSJ10, BSWB60, EFSH30 and OTC diets were significantly greater than those of fish fed the CON and AMO diets. Intestinal histology revealed that the average villus length of fish fed the BSSJ10, BSWB60, and EFSH30 diets was significantly greater than that of fish fed the CON, OTC and AMO diets. The cumulative survival rates of fish fed the EFSH30 and BSWB60 diets were significantly greater than those of fish fed the CON diet after the 15th day of the challenge test. Overall, the results of the present study demonstrated that the supplementation of autochthonous bacteria, B. subtilis (108 CFU/g diet) or E. faecium (107 CFU/g diet) in the diet could be ideal probiotics to replace antibiotics based on growth performance, the serum biochemical composition, immune responses and disease resistance in olive flounder fed a low fish meal diet..

Preprint ARTICLE | doi:10.20944/preprints202404.0395.v1

Hematological parameters and plasma biochemistry of tambaqui Colossoma macropomum from fish farms in the Amazon region

Flávia Dayane Félix Farias, Paulo Henrique Rocha Aride, Ariany Rabello da Silva Liebl, Maiko Willas Sores Ribeiro, Alexandre Augusto Barai, Neiana Pereira Anselmo, Tiago Nóbrega Cabral, Adriano Teixeira de Oliveira

Subject: Biology And Life Sciences, Aquatic Science Keywords: blood; well-being; Amazon; native; cultivation

Online: 5 April 2024 (08:49:01 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202404.0373.v1

Protecting the High Seas from Illegal, Unregulated, and Unreported Fishing with Overarching Management

Laura Nieminen, Mark Tupper, Ian Hendy

Subject: Biology And Life Sciences, Aquatic Science Keywords: high seas; illegal fishing; marine resource management; marine protected areas; subsidies; sustainable fisheries

Online: 4 April 2024 (11:02:27 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202310.1247.v3

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, Birgit M Therkildsen

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: 2 April 2024 (10:41:14 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/preprints202404.0005.v1

Hypoxia in the Blue Mussel Mytilus chilensis Induces Transcriptome Shift Associated with Endoplasmic Reticulum Stress, Metabolism, and Immune Response.

Milton Gabriel Montúfar-Romero, Valentina Marjorie Valenzuela-Muñoz, Diego Andrés Valenzuela-Miranda, Cristian Jorge Gallardo-Escárate

Subject: Biology And Life Sciences, Aquatic Science Keywords: Bivalve mollusks, Hypoxia, Oxidative stress, Reoxygenation, Gills, Transcriptome, Metabolism, Immunity.

Online: 1 April 2024 (09:51:35 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202403.0907.v1

New Chymotrypsin Purified and Biochemically Characterized from Digestive Organs of Bigfin Reef Squid (Sepioteuthis lessoniana)

Jirapan Satjarak, Sappasith Klomklao, Yi Zhang, Karun Thongprajukaew

Subject: Biology And Life Sciences, Aquatic Science Keywords: chymotrypsin; bigfin reef squid; Sepioteuthis lessoniana; purification; characterization

Online: 15 March 2024 (11:06:46 CET)

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Preprint ARTICLE | doi:10.20944/preprints202403.0641.v1

Food, Growth and Biological Production of European Eel Anguilla anguilla in a Small Stream in Jutland, Denmark

Gorm Rasmussen, Birgit Therkildsen, Michael Pedersen

Subject: Biology And Life Sciences, Aquatic Science Keywords: otolith; ageing; growth rate; von Bertalanffy; L∞ , natural mortality; biological production; feeding

Online: 11 March 2024 (14:00:04 CET)

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Preprint ARTICLE | doi:10.20944/preprints202310.1247.v2

Food, Growth and Biological Production of European eel Anguilla anguilla in a Small Stream in Jutland, Denmark

Gorm Rasmussen, Michael I Pedersen, Birgit M Therkildsen

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: 8 March 2024 (03:39:34 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 ARTICLE | doi:10.20944/preprints202403.0150.v1

Genetic Variability and Genetic Differentiation of Populations in the Carpet Shell Clam (Ruditapes decussatus) Based on Intron Polymorphisms

Carlos Saavedra, David Cordero

Subject: Biology And Life Sciences, Aquatic Science Keywords: clam; fisheries; population genetics; intron; RFLP

Online: 4 March 2024 (11:15:36 CET)

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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/preprints202402.1183.v1

Factors Influencing Disease Dynamics in Small-Scale Carp Polyculture in Bangladesh

Partho Pratim Debnath, Pochara Prukbenjakul, Melba G. Reantaso, Charles R Tyler, Channarong Rodkhum

Subject: Biology And Life Sciences, Aquatic Science Keywords: Small-scale aquaculture; Carp farming; Disease; Biosecurity; Sustainable aquaculture

Online: 21 February 2024 (11:38:23 CET)

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Small scale carp polyculture plays a key role for food supply in Bangladesh, however, factors including water pollution, limited infrastructure and inadequate disease management hinder its sustainability. This paper reports on a survey of 231 farmers across the 6 major carp producing regions in Bangladesh, analyzing factors including, farmers’ social aspects, farm characteristics, information on disease and approaches adopted to combat them, and biosecurity practices. Almost half (46.8%) of the farms surveyed experienced disease in carp species, with clear regional variations. Eighty four percent of farms reported carp mortalities during disease outbreak, with an average mortality level 10.23±11.81%. Clinical signs during outbreaks lasted between a week and a month, and there was a peak in disease outbreaks in two seasonal periods between June to July and October to December. Disease incidence was related to a range of factors including the farmer experience, ponds/farm type, stocked species, and biosecurity practice. A combination of disinfecting measures during pond preparation and measures during stocking, including discarding fingerling transport water off-farm, fingerling disinfection and check the health of fingerlings before stocking significantly reduced disease occurrence. Treatments involving the antibiotics, ciprofloxacin, erythromycin, and azithromycin were reported as ineffective, raising concerns about non-prudent use, inadequate dosing (perhaps without appropriate veterinary guidance) and the potential for further driving antimicrobial resistance in the environment. The research unveils a concerning pattern of disease high disease incidence across small-scale carp farms in Bangladesh and the significant potential for disease spread highlights the need for responsible disposal practices. The study emphasizes the need for improving training and awareness programs are vital for addressing biosecurity and disease management challenges, ensuring sustainable aquaculture and community well-being.

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 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/preprints202402.0978.v1

Effects of Suspended Sediments on the Population Dynamics and Behavior of Filter-Feeding Brachycentrus occidentalis (Trichoptera: Brachycentridae) Larvae in a Southeastern Minnesota, USA, Trout Stream

Neal D. Mundahl, Erik D. Mundahl

Subject: Biology And Life Sciences, Aquatic Science Keywords: caddisfly larvae; secondary production; suspended sediments; filter-feeding

Online: 19 February 2024 (14:35:14 CET)

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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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Preprint ARTICLE | doi:10.20944/preprints202402.0782.v1

Influence of Riparian Conditions on Physical Instream Habitats in Trout Streams in Southeastern Minnesota, USA

Will L. Varela, Neal D. Mundahl, David F. Staples, Rachel H. Greene, Silas Bergen, Jennifer Cochran-Biederman, Cole R. Weaver

Subject: Biology And Life Sciences, Aquatic Science Keywords: canonical correlation; coldwater habitat; instream physical habitat; riparian

Online: 14 February 2024 (07:20:07 CET)

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Preprint ARTICLE | doi:10.20944/preprints202402.0405.v1

Denitrification Characteristics of the Low-Temperature Tolerant Denitrification Strain Achromobacter spiritinus HS2 and Its Application

Yajuan Gao, Ting Zhang, LingKang Hu, Shiyuan Liu, Chenchen Li, Yongsheng Jin, Hongbin Liu

Subject: Biology And Life Sciences, Aquatic Science Keywords: Achromobacter spiritinus; heterotrophic nitrification; aerobic denitrification; low-temperature tolerant denitrifying bacteria; sewage treatment.

Online: 7 February 2024 (08:02:53 CET)

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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/preprints202312.2019.v2

Quantification of Heavy Metal Content in Anadara tuberculosa from the Gulf of Guayaquil Using ICP-OES: Assessing Marine Contamination

Kevin Cedeño Vinces, Angela Pacheco Flores de Valgaz, José Ballesteros

Subject: Biology And Life Sciences, Aquatic Science Keywords: Pollution; Anadara tuberculosa; Ecuador; Shellfish; Gulf; ICP-OES

Online: 2 February 2024 (12:13:54 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/preprints202401.1696.v1

Biodiversity and Environmental Factors Structuring Diatom Assemblages in the Protected High-Mountains Lakes of the Kaçkar Mountains National Park (Rize, Turkey)

Bülent Şahin, Sophia Barinova

Subject: Biology And Life Sciences, Aquatic Science Keywords: high mountain lakes; diatoms; benthic habitats; environmental factors; bioindicator; threatened and rare species; Kaçkar Mountains National Park; Turkey.

Online: 24 January 2024 (07:14:07 CET)

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Preprint ARTICLE | doi:10.20944/preprints202401.1296.v1

Transcriptomic Survey Reveals the Effect of Urea on Metabolism of Nannochloropsis oceanica

Han Zhu, Zhen Li Ye, Zhengru Xu, Li Wei

Subject: Biology And Life Sciences, Aquatic Science Keywords: Adaptation mechanism; Urea addition; Transcriptome; Nannochloropsis oceanica

Online: 17 January 2024 (10:08:39 CET)

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Preprint ARTICLE | doi:10.20944/preprints202401.0956.v1

Linking Acrosomal Morphotypes and Genetic Divergence in an Inter-Oceanic Mussel from Pacific and Atlantic Coasts: A Case of Incipient Speciation?

Carolina Briones, José J. Núñez, Montse Pérez, Orlando Garrido, Bernardita Campos, Karina Godoy, Ricardo Hartley, Pablo Oyarzún, Ricardo Guiñez

Subject: Biology And Life Sciences, Aquatic Science Keywords: Bayesian method; ect-aquasperm; Last Glacial Maximum; Mytilidae; Perumytilus purpuratus; postglacial recolonization; reproductive isolation; sperm morphotypes

Online: 12 January 2024 (10:42:17 CET)

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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/preprints202401.0540.v1

Biofilm Growth of Pseudomonas aeruginosa TGC04 Exposed to Metformin and Variations in COD Content

Luiz Gustavo Pragana, João Antônio Carvalho Bandeira, Kaíque Yago Gervazio de Lima, Ulrich Vasconcelos

Subject: Biology And Life Sciences, Aquatic Science Keywords: Emerging contaminants; Non-antibiotic drugs; Antimicrobial activity.

Online: 8 January 2024 (10:10:30 CET)

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Preprint ARTICLE | doi:10.20944/preprints202401.0090.v1

Size Structured Method Applied to the Brown Crab Fishery Callinectes bellicosus in the Gulf of California

Gilberto Genaro Ortega-Lizárraga, Horacio A. Muñoz-Rubí, Guillermo Rodríguez-Domínguez, Raúl Pérez-González, Jaime Edzael Mendívil-Mendoza, E. Alberto Aragón-Noriega

Subject: Biology And Life Sciences, Aquatic Science Keywords: Baranov's equation; CASA Model; exploitation rate; fishing mortality

Online: 3 January 2024 (02:22:03 CET)

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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/preprints202312.2065.v1

Crude Lipid Levels in Semi-Purified Diets for Zebrafish

Daniella Tavares, Samara Moesch, Beatriz Felix Verdam dos Santos, Flavio Luis Vanderlei, Lilian Carolina Rosa da Silva, André Rodrigues da Cunha Barreto-Vianna, Álvaro José de Almeida Bicudo

Subject: Biology And Life Sciences, Aquatic Science Keywords: standard diet; fish nutrition; Danio rerio; nutritional requirement

Online: 27 December 2023 (09:07:09 CET)

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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/preprints202312.2019.v1

Quantification of Heavy Metal Content in Anadara tuberculosa from the Gulf of Guayaquil Using ICP-OES: Assessing Marine Contamination

Kevin Cedeño Vinces, Angela Pacheco Flores de Valgaz, José Ballesteros

Subject: Biology And Life Sciences, Aquatic Science Keywords: heavy metals; mollusks; Gulf; Anadara tuberculosa; ICP-OES

Online: 26 December 2023 (14:39:43 CET)

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Preprint ARTICLE | doi:10.20944/preprints202312.1976.v1

Recovery of a Population of Slimy Sculpin After an Autumn Fish Kill in the Headwaters of a Minnesota Trout Stream

Neal D Mundahl

Subject: Biology And Life Sciences, Aquatic Science Keywords: fish kill; recovery; sculpin; instream movements; reproduction; Uranidea cognata

Online: 26 December 2023 (10:21:45 CET)

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Preprint ARTICLE | doi:10.20944/preprints202312.1936.v1

Studying for Characterization of Ovarian Development and Associated Factors during the Breeding Migration of Coilia nasus in the Yangtze River

Shuwei Wei, Zhong Hua, Yanping Yang, Fengjiao Ma, Wei Han, Wei Zhang, Congping Ying, Yanmin Deng, Kai Liu

Subject: Biology And Life Sciences, Aquatic Science Keywords: Coilia nasus; ovarian development; organizational observation; sex steroid hormones; gene expression

Online: 26 December 2023 (06:59:53 CET)

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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/preprints202312.1510.v1

Relationship Between Water Quality and Phytoplankton in Reservoirs of the Ebro Basin (Spain) During the Period of 2010–2015

Daniel Montagud

Subject: Biology And Life Sciences, Aquatic Science Keywords: water quality; phytoplankton; trophic state; time series; climate change; reservoir management

Online: 20 December 2023 (09:38:44 CET)

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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/preprints202312.1169.v1

Adaptation of the European Fish Index (EFI+) to include the alien fish pressure

Enric Aparicio, Carles Alcaraz, Rafel Rocaspana, Quim Pou-Rovira, Emili García-Berthou

Subject: Biology And Life Sciences, Aquatic Science Keywords: Ecological status; Index of biotic integrity; Non-native species; Water Framework Directive

Online: 15 December 2023 (11:08:59 CET)

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Preprint ARTICLE | doi:10.20944/preprints202312.1131.v1

Effect of Light Color on the Growth, Feeding, Digestion and Antioxidant Enzymes of Tripneustes gratilla (Linnaeus, 1758)

Chuanxin Qin, Xinye Zhao, Yu Guo, Jiayang Li, Zhenhua Ma, Gang Yu

Subject: Biology And Life Sciences, Aquatic Science Keywords: sea urchin; LED light color; consume; growth; enzyme activity

Online: 15 December 2023 (04:32:47 CET)

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Preprint ARTICLE | doi:10.20944/preprints202312.1099.v1

Sympatonic Coexistence Mechanism: A Case Study of Two Penahia Species in the Beibu Gulf, South China Sea

Yunrong Yan, Konglan Luo, Xiongbo He, Yan Zhou, Xiaoying Yi, Chunxu Zhao, Xiaodong Yang, Jinxi Wang

Subject: Biology And Life Sciences, Aquatic Science Keywords: Pennahia pawak; Pennahia anea; stomach contents analysis; stable isotope analysis; Sympatonic coexistence

Online: 15 December 2023 (04:08:35 CET)

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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/preprints202312.0782.v1

Potential Therapeutic Use of Dermaseptin S4 From the Frog Phyllomedusa sauvagii and Its Derivatives Against Bacterial Pathogens in Fish

Afef Braik, Jhon Alberto Serna-Duque, Adel Nefzi, Sonia Aroui, María Ángeles Esteban

Subject: Biology And Life Sciences, Aquatic Science Keywords: dermaseptin; antimicrobial peptides; amphibian; aquaculture; vibriosis

Online: 12 December 2023 (05:14:34 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 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/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 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 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 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 COMMUNICATION | doi:10.20944/preprints202311.1991.v1

Influence of Salinity on the Survival Rate of Fertilized Chum Salmon (Oncorhynchus keta) Eggs

Jong Won Park, Beom Sik Kim, Ju-Kyoung Kim, Hyun Je Park, Hae Kun Jung, Chung Il Lee

Subject: Biology And Life Sciences, Aquatic Science Keywords: chum salmon; fertilized eggs; salinity tolerance; hatching rate; spawning ground; Namdae River

Online: 30 November 2023 (14:17:49 CET)

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Preprint ARTICLE | doi:10.20944/preprints202311.1659.v1

Status of the Italian Freshwater Gastrotricha Biodiversity, With the Creation of an Interactive GIS-Based Web Map

Francesco Saponi, M. Antonio Todaro

Subject: Biology And Life Sciences, Aquatic Science Keywords: benthos; biodiversity; gastrotrichs; meiofauna; taxonomy

Online: 27 November 2023 (07:04:00 CET)

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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/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/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/preprints202311.1337.v1

Identification of an Ortholog of MALT1 from Shrimp that Induces NF-κB Mediated Antiviral Immunity

Haiyang Wang, Bang Xiao, Shihan Chen, Jianguo He, Chaozheng Li

Subject: Biology And Life Sciences, Aquatic Science Keywords: MALT1; Litopenaeus vannamei; WSSV; AMPs; NF-κB

Online: 22 November 2023 (07:36:42 CET)

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Preprint ARTICLE | doi:10.20944/preprints202311.1194.v1

Food Selectivity in Juvenile Three-Spined Stickleback Gasterosteus aculeatus L. at Nursery Grounds in the White Sea

Anna S. Genelt-Yanovskaya, Evgeny A. Genelt-Yanovskiy, Natalia V. Polyakova, Mikhail V. Ivanov, Tatiana S. Ivanova, Dmitry L. Lajus

Subject: Biology And Life Sciences, Aquatic Science Keywords: food selectivity; stickleback; three-spined stickleback; Gasterosteus aculeatus; the White Sea; zooplankton; fish nursery grounds; intertidal communities

Online: 20 November 2023 (03:15:52 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 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 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 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/preprints202310.2081.v1

Combined Effect of Sterilisation and Prior Frozen Storage Time on Quality Loss of Canned Horse Mackerel (Trachurus trachurus)

Elena Villamarín, Beatriz Martínez, Marcos Trigo, Santiago P. Aubourg

Subject: Biology And Life Sciences, Aquatic Science Keywords: fish; canning; cold storage; lipid oxidation; lipid hydrolysis; fatty acid profile; colour changes; trimethylamine; degradation

Online: 31 October 2023 (12:36:19 CET)

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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 ARTICLE | doi:10.20944/preprints202310.2052.v1

Comparative Metabolomic and Network Analysis of the Hyperaccumulation of Astaxanthin in Haematococcus pluvialis under the Different Stress Conditions

Yong Dou, Jiayi Li, Zhiyi Qiao, Wenli Zhou

Subject: Biology And Life Sciences, Aquatic Science Keywords: Haematococcus pluvialis; Astaxanthin; Environmental stress factors; Metabolomic analysis; Metabolic network

Online: 31 October 2023 (10:20:18 CET)

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Preprint ARTICLE | doi:10.20944/preprints202310.1966.v1

Characterization of the Complete Mitochondrial Genome of Leptobotia elongata and Its Phylogenetic Implications in Cobitidae

Zhenlin Ke, Kangqi Zhou, Mengdan Hou, Hui Luo, Zhe Li, Xianhui Pan, Tingsen Jing, Hua Ye

Subject: Biology And Life Sciences, Aquatic Science Keywords: Elongate loach; Cobititdae; mitochondria genome; phylogenetic analysis

Online: 31 October 2023 (03:00:06 CET)

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Preprint ARTICLE | doi:10.20944/preprints202310.1632.v1

Condition, Reproductive Fitness, and Fluctuating Asymmetry in Brook Stickleback: Responses to Anthropogenic Runoff

Neal D. Mundahl, Kelsey A. Hoffmann

Subject: Biology And Life Sciences, Aquatic Science Keywords: Culaea inconstans; fitness; condition; developmental asymmetry; reproduction

Online: 26 October 2023 (03:34:07 CEST)

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Multiple indicators have been used to assess the degree of exposure of fish to anthropogenic chemicals in their stream habitats. We hypothesized that brook stickleback (Culaea inconstans) in a headwater stream receiving urban and agricultural runoff (South Fork Whitewater River, SFWR) would exhibit poorer condition, reduced reproductive fitness, and greater left side-to-right side morphological asymmetry (i.e., fluctuating asymmetry or FA) than would fish from a nearby headwater stream with a forested drainage basin (Garvin Brook). Male and female fish were collected from both streams just prior to spawning in 2013-2015. In 2013 and 2014, fish were assessed for overall condition (Fulton’s K) and internal measures of condition (hepatosomatic index, HSI) and reproductive fitness (gonadosomatic index [GSI], total egg count, egg weight). In 2015, measurements of head length, jaw length, eye diameter, pectoral fin length, and pelvic fin length were made on both sides of each fish for use in assessing degree of FA. We observed declining condition with fish size, increased liver size, and reduced egg counts and egg size in female brook stickleback in SFWR relative to those from Garvin Brook. SFWR females had significantly higher FA than Garvin females for all structures assessed except pelvic fin length. FA also was slightly higher for all structures in SFWR males compared to Garvin males, but differences were not significant. A composite FA index combining all measurements from an individual fish into a single value displayed highly significant differences for female fish (SFWR FA >> Garvin FA), but not for male fish (SFWR FA = Garvin FA). Exposure of brook stickleback to reduced water quality in SFWR during early development appears to increase morphological asymmetry in female (but not male) fish, and continuing exposure to compromised water quality throughout life impacts both general condition and reproductive fitness of stickleback, especially older female fish, in SFWR.

Preprint ARTICLE | doi:10.20944/preprints202310.1597.v1

Transcriptome Analysis of Gill Tissues from Neptunea cumingii in Different Seasons

Yifan Zhang, Dandan Zhang, Ying Tian, Junxia Mao, Yang Liu, Zhenlin Hao

Subject: Biology And Life Sciences, Aquatic Science Keywords: immune function; Neptunea cumingi; temperatur; transcriptome

Online: 25 October 2023 (09:25:26 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202310.1527.v1

Gas Chromatography-Mass Spectrometric Study of Low-Molecular-Weight Exogenous Metabolites of Algae-Bacterial Communities in the Laboratory Accumulative Culture

Yulia Bataeva

Subject: Biology And Life Sciences, Aquatic Science Keywords: algae; cyanobacteria; exometabolites; gas chromatography-mass spectrometry; algaebacterial communities; accumulative culture

Online: 24 October 2023 (10:47:50 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 ARTICLE | doi:10.20944/preprints202310.1182.v1

Remote Sensing for Sustainable Wetland Management, Likouala Aux Herbes River, Lac Tele Community Reserve (LTCR), Republic of Congo

Eric Bertin NDZANA BILOA1, Victor MAMONEKENE, Jean-Claude MICHA

Subject: Biology And Life Sciences, Aquatic Science Keywords: remote sensing; Geographic Information Systems (GIS); fish biodiversity

Online: 19 October 2023 (03:51:06 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/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/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/preprints202310.0681.v1

Evaluation of Aspalathus linearis Tea Extract as a Functional Ingredient in Mozambique Tilapia (Oreochromis mossambicus) Culture

Grace Emily Okuthe, Bongile Bhomela, Ayodeji Oriola, Noluyolo Vundisa

Subject: Biology And Life Sciences, Aquatic Science Keywords: Aspalathus linearis; Oreochromis mossambicus; feed supplements; growth performance; survival rate

Online: 11 October 2023 (08:53:42 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202310.0602.v1

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: 10 October 2023 (10:46:06 CEST)

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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 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 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/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 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 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/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/preprints202309.0870.v1

Development and Length Frequency Distribution of Larvae of Some Mesopelagic Fishes Near Coral Reefs in the Red Sea

Mohamed Ahmed Abu El-Regal, James G. Ditty

Subject: Biology And Life Sciences, Aquatic Science Keywords: mesopelagic fish; larvae; development; Red Sea; spawning

Online: 13 September 2023 (11:06:10 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202309.0725.v1

An Update on Biogeography of Decapod Crustaceans from a Collection of Soft‐Bottom Macrofauna of the Central Mediterranean Sea

Tiziano Bacci, Monica Targusi, Loretta Lattanzi, Veronica Marusso, Benedetta Trabucco, Paolo Tomassetti

Subject: Biology And Life Sciences, Aquatic Science Keywords: decapod; crustacean; macrozoobenthos; biogeography; checklist; environmental monitoring; Mediterranean Sea

Online: 12 September 2023 (08:46:26 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202309.0544.v1

Effects of Enrofloxacin and Ciprofloxacin on Growth and Toxin Production of Microcystis aeruginosa

Yu Xia, Qin-Ming Xie, Ta-Jen Chu

Subject: Biology And Life Sciences, Aquatic Science Keywords: quinolone antibiotics; enrofloxacin; ciprofloxacin; Microcystis aeruginosa; microcystins

Online: 8 September 2023 (03:24:47 CEST)

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Microcystis aeruginosa is a common cyanobacteria found in water blooms and often causes ecological harm. Antibiotics are also increasingly used for the prevention and treatment of bacterial infections in aquaculture. However, since most antibiotics cannot be fully metabolized, they enter the water environment and cause ecological impacts. In this paper, the effects of the two quinolone antibiotics (enrofloxacin and ciprofloxacin) on the population density and microcystins (MCs) production of Microcystis aeruginosa were studied. It is of great significance for the ecological risk assessment of antibiotics to the water environment. The results showed that the 96h EC50 values of enrofloxacin and ciprofloxacin to Microcystis aeruginosa were 56.10mg/L and 49.80mg/L respectively, and the toxicity of ciprofloxacin to Microcystis aeruginosa was slightly stronger than that of enrofloxacin. With the increase of the two quinolone antibiotic concentration, the growth inhibition rate (IR) increased, but when the concentration reached a certain height, the IR would reach its threshold. Long-term exposure to low concentrations of these two quinolone antibiotics is not only more likely to lead to the outbreak of Microcystis aeruginosa, but also increase its toxin production capacity. The highest contents of MCs in enrofloxacin and ciprofloxacin groups were 95.539 μg/g and 93.720 μg/g, respectively. The MCs value of these three enrofloxacin treatment groups was more than above 51.8 times that of control group (CK) on the 4th day; from 8th day to 14th day, the MCs value of these three enrofloxacin treatment groups was more than above 3.2 times that of CK group. For another ciprofloxacin, the MCs value of the treatment group was more than 64.98 times that of the CK group on the 4th day, and from 8th day to 14th day, the MCs value of the treatment group was more than 2.7 times that of the CK group. These findings provide crucial management rationale.

Preprint ARTICLE | doi:10.20944/preprints202309.0490.v1

Optimization of Live Prey Enrichment Media for Rearing Juvenile Short-Snouted Seahorse, Hippocampus hippocampus

Jorge Palma, Ricardo Lima, José Pedro Andrade, Maria João Lança

Subject: Biology And Life Sciences, Aquatic Science Keywords: nutrition; Hippocampus hippocampus; live feed enrichment; microalgae; essential fatty acids; copepods

Online: 7 September 2023 (07:11:45 CEST)

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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 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/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/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/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 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/preprints202308.0577.v1

Unraveling the Impact of Human Activities on Water Quality of an Urban River in an Unplanned Zone of the Amazonian Coast

Luci Cajueiro Carneiro Pereira, Natália do Socorro da Silva Sousa, Brenda Ribeiro Padilha da Silva, Ana Lucia Biondo da Costa, Francielle Raquel Baltazar Cavalcante, Laiane Maria dos Santos Rodrigues, Rauquírio Marinho da Costa

Subject: Biology And Life Sciences, Aquatic Science Keywords: Sewage; population growth; pathogenic bacteria; DPSWR; Amazon coast

Online: 8 August 2023 (14:04:58 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202308.0587.v1

Effect of Bioactive Peptides From Atlantic Salmon Processing By-Products on Oxyntopeptic and Enteroendocrine Cells of the Gastric Mucosa of European Seabass and Gilthead Seabream

Paolo Clavenzani, Giulia Lattanzio, Alessio Bonaldo, Luca Parma, Serena Busti, Åge Oterhals, Romarheim Helge Romarheim, Tone Aspevik, Pier Paolo Gatta, Maurizio Mazzoni

Subject: Biology And Life Sciences, Aquatic Science Keywords: gilthead seabream and European seabass; bioactive peptide; oxyntopeptic cells; neuropeptide Y; somatostatin and ghrelin

Online: 8 August 2023 (13:56:19 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/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 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 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/preprints202307.1766.v1

Development of an Edge-Computing-Based Intelligent Feeding System for Observing Depth-Specific Feeding Behavior in Red Seabream

Donggil Lee, Jaehyun Bae, Kyounghoon Lee

Subject: Biology And Life Sciences, Aquatic Science Keywords: feeding; monitoring; edge computing; aquaculture; red seabream

Online: 26 July 2023 (10:27:28 CEST)

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