Version 1
: Received: 28 December 2023 / Approved: 28 December 2023 / Online: 28 December 2023 (05:06:55 CET)
How to cite:
Torres-Pérez, W. X.; Pérez-Reyes, O. Acute Toxicity of Malathion, Permethrin, and Glyphosate on the Tropical Freshwater Shrimp Xiphocaris elongata. Preprints2023, 2023122146. https://doi.org/10.20944/preprints202312.2146.v1
Torres-Pérez, W. X.; Pérez-Reyes, O. Acute Toxicity of Malathion, Permethrin, and Glyphosate on the Tropical Freshwater Shrimp Xiphocaris elongata. Preprints 2023, 2023122146. https://doi.org/10.20944/preprints202312.2146.v1
Torres-Pérez, W. X.; Pérez-Reyes, O. Acute Toxicity of Malathion, Permethrin, and Glyphosate on the Tropical Freshwater Shrimp Xiphocaris elongata. Preprints2023, 2023122146. https://doi.org/10.20944/preprints202312.2146.v1
APA Style
Torres-Pérez, W. X., & Pérez-Reyes, O. (2023). Acute Toxicity of Malathion, Permethrin, and Glyphosate on the Tropical Freshwater Shrimp <em>Xiphocaris elongata</em>. Preprints. https://doi.org/10.20944/preprints202312.2146.v1
Chicago/Turabian Style
Torres-Pérez, W. X. and Omar Pérez-Reyes. 2023 "Acute Toxicity of Malathion, Permethrin, and Glyphosate on the Tropical Freshwater Shrimp <em>Xiphocaris elongata</em>" Preprints. https://doi.org/10.20944/preprints202312.2146.v1
Abstract
Urban and agricultural runoffs can transport contaminants and pesticides into freshwater ecosystems, particularly in the developing tropics. For instance, organophosphate and pyrethroids pesticides like glyphosate, malathion, and permethrin have been found in tropical streams. The uncontrolled application of these pesticides has become a growing concern due to their adverse effects on various non-targeted organisms. Unfortunately, most studies have focused on a few selected model species, ignoring the effects on other nontarget organisms, which may play an important role in tropical lotic ecosystems. In addition, the biological characteristics of aquatic crustaceans, including their morphology, physiology, and behavior, make them susceptible to toxic chemicals. For this reason, this study used the widely distributed freshwater shrimp Xiphocaris elongata as a model organism to determine the acute toxicity of permethrin, malathion, and glyphosate. Our results show that the proportion of mortality of X. elongata in each concentration group became progressively higher as the concentration of exposure increased. We also found that the synthetic pyrethroid permethrin is the most toxic pesticide tested, followed by organophosphate malathion and glyphosate. Experiments with this freshwater shrimp showed a good control performance and reproducibility for the tested pesticides. This study demonstrated that X. elongata is a suitable test organism that can be a representative bioindicator of pesticide toxicity in tropical streams.
Keywords
Aquatic toxicology, organophosphate, pesticide, Puerto Rico, pyrethroids
Subject
Environmental and Earth Sciences, Pollution
Copyright:
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
