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Evaluation of Nile tilapia (Oreochromis niloticus) fingerlings exposed to the pesticide pyriproxyfen

dc.contributorFundação de Amparo a Pesquisa do Estado de Alagoas- FAPEAL- PPSUSen-US
dc.creatorda Silva, Fabio Francisco
dc.creatorda Silva, Jaqueline Maria
dc.creatorda Silva, Themis de Jesus
dc.creatorTenorio, Bruno Mendes
dc.creatorTenorio, Fernanda Das Chagas Angelo Mendes
dc.creatorSantos, Elton Lima
dc.creatorMachado, Sonia Salgueiro
dc.creatorSoares, Emerson Carlos
dc.date2020-11-01
dc.date.accessioned2020-11-05T13:36:50Z
dc.date.available2020-11-05T13:36:50Z
dc.identifierhttp://lajar.ucv.cl/index.php/rlajar/article/view/vol48-issue5-fulltext-2556
dc.identifier10.3856/vol48-issue5-fulltext-2556
dc.identifier.urihttps://revistaschilenas.uchile.cl/handle/2250/159296
dc.descriptionOreochromis niloticus (Nile tilapia) is one of the most produced fish for human consumption globally; however, these fish are susceptible to exposure to toxic chemicals in the water. Pyriproxyfen is a pesticide widely used to control mosquitoes in drinking water supplies and pests in crops. The present study aimed to examine pyriproxyfen's effects on fish O. niloticus fingerlings exposed using an acute 96 h and subchronic tests for 28 days. The lethal concentration LC50-96 h for O. niloticus was 2.77 mg L-1, no observed effect concentration (NOEC), and the lowest observed effect concentration (LOEC) was 1.0 and 2.5 mg L-1, respectively. The hepatic catalase activity was significantly changed after exposure to pyriproxyfen above 0.4 mg L-1. Pyriproxyfen also induced histopathological lesions in the hepatic tissue at 28 days in a dose-dependent pattern at concentrations above 0.4 mg L-1. Pyriproxyfen above 1.2 mg L-1 reduced the locomotor behavior, distance traveled inside the tank, mean speed, and angular variation. This pesticide also decreased weight gain, food conversion, and specific growth rate at concentrations above 1.2 mg L-1. In conclusion, exposure to pyriproxyfen in water from 0.4 mg L-1 may impair O. niloticus development; consequently, pyriproxyfen may affect this fish's production and quality at higher concentrations than commonly used in water (0.01 mg L-1).en-US
dc.formatapplication/pdf
dc.languageeng
dc.publisherPontificia Universidad Católica de Valparaísoen-US
dc.relationhttp://lajar.ucv.cl/index.php/rlajar/article/view/vol48-issue5-fulltext-2556/1305
dc.relationhttp://lajar.ucv.cl/index.php/rlajar/article/downloadSuppFile/vol48-issue5-fulltext-2556/1974
dc.relationhttp://lajar.ucv.cl/index.php/rlajar/article/downloadSuppFile/vol48-issue5-fulltext-2556/1975
dc.relationhttp://lajar.ucv.cl/index.php/rlajar/article/downloadSuppFile/vol48-issue5-fulltext-2556/1976
dc.relationhttp://lajar.ucv.cl/index.php/rlajar/article/downloadSuppFile/vol48-issue5-fulltext-2556/1977
dc.relationhttp://lajar.ucv.cl/index.php/rlajar/article/downloadSuppFile/vol48-issue5-fulltext-2556/1978
dc.rightsCopyright (c) 2020 Latin American Journal of Aquatic Researchen-US
dc.sourceLatin American Journal of Aquatic Research; Vol 48, No 5 (2020); 826-835en-US
dc.sourcePlataforma para envío de artículos - Latin American Journal of Aquatic Research; Vol 48, No 5 (2020); 826-835es-ES
dc.source0718-560X
dc.source0718-560X
dc.subjectOreochromis niloticus; fish; pyriproxyfen; LC50; locomotor behavior; catalase; histopathologyen-US
dc.titleEvaluation of Nile tilapia (Oreochromis niloticus) fingerlings exposed to the pesticide pyriproxyfenen-US
dc.typeinfo:eu-repo/semantics/article
dc.typeinfo:eu-repo/semantics/publishedVersion
dc.typeen-US
dc.typees-ES


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