Show simple item record

dc.creatorRuiz-González,Luis Eduardo
dc.creatorGuerrero-Galván,Saúl Rogelio
dc.creatorNieves-Rodríguez,Karen Noemí
dc.creatorMejía-Acosta,Angélica Berenice
dc.creatorVega-Villasante,Fernando
dc.date2018-07-01
dc.date.accessioned2019-05-03T13:28:22Z
dc.date.available2019-05-03T13:28:22Z
dc.identifierhttps://scielo.conicyt.cl/scielo.php?script=sci_arttext&pid=S0718-560X2018000300589
dc.identifier.urihttp://revistaschilenas.uchile.cl/handle/2250/88450
dc.descriptionABSTRACT Due to the presence of pollutants in aquatic systems, this research aims to analyze toxicity levels of Faena Clásico®, Asuntol®, sodium hypochlorite and diesel on Macrobrachium tenellum juveniles. For the purpose of this study, specimens from 2 to 4 cm in length were used. For glyphosate, hypochlorite and coumaphos bio-assays, a total of 8 individuals were placed per experimental unit, however, only 5 individuals were placed for diesel. Dead individuals were counted at the end of 24 h of exposure. All bioassays were performed in quintuplicate plus a negative control. The mean lethal concentration (LC50) was calculated by a Probit analysis and standard error. The mean lethal concentrations obtained are given at 6 h of exposure for 16 mL L−1 of diesel aqueous extract; and 24 h of exposure, solutions of Asuntol® 6 mg L−1, Classic Faena® 32 mg L−1 and sodium hypochlorite 59 mg L−1. Results show that the different chemicals assessed generate harmful damage to M. tenellum, since agrochemical compounds can cause alterations in the composition of ecosystems, reducing biodiversity in a temporarily or permanently manner.
dc.formattext/html
dc.languageen
dc.publisherPontificia Universidad Católica de Valparaíso. Facultad de Recursos Naturales. Escuela de Ciencias del Mar
dc.relation10.3856/vol46-issue3-fulltext-12
dc.rightsinfo:eu-repo/semantics/openAccess
dc.sourceLatin american journal of aquatic research v.46 n.3 2018
dc.subjectpesticides
dc.subjectorganophosphates compounds
dc.subjectcoumaphos
dc.subjectglyphosate
dc.subjectsodium hypochlorite
dc.subjectprawn
dc.titleAssessment of median lethal concentration (CL50) of pollutants on Macrobrachium tenellum juveniles


This item appears in the following Collection(s)

Show simple item record