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Comparative toxicity of chlordane, chlorpyrifos, and aldicarb to four aquatic testing organisms

Moore, M.T ; Huggett, D.B ; Gillespie, W.B. Jr ; Rodgers, J.H ; Cooper, C.M

Archives of environmental contamination and toxicology, 1998-02, Vol.34 (2), p.152-157 [Periódico revisado por pares]

Heidelberg: Springer-Verlag

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Título:
Comparative toxicity of chlordane, chlorpyrifos, and aldicarb to four aquatic testing organisms
Autor: Moore, M.T ; Huggett, D.B ; Gillespie, W.B. Jr ; Rodgers, J.H ; Cooper, C.M
Assuntos: Animal, plant and microbial ecology ; Applied ecology ; AQUATIC ORGANISMS ; Biological and medical sciences ; Chironomus tentans ; Daphnia magna ; Ecotoxicology, biological effects of pollution ; EFECTOS SECUNDARIOS ; EFFET SECONDAIRE ; Fresh water environment ; Fundamental and applied biological sciences. Psychology ; Hyalella azteca ; INSECTICIDAS ; INSECTICIDE ; INSECTICIDES ; Laboratories ; Mortality ; NONTARGET EFFECTS ; NONTARGET ORGANISMS ; ORGANISME AQUATIQUE ; ORGANISMOS ACUATICOS ; Organisms ; Pimephales promelas ; SIDE EFFECTS ; Toxicity ; TOXICOLOGIA ; TOXICOLOGIE ; TOXICOLOGY ; Water pollution
É parte de: Archives of environmental contamination and toxicology, 1998-02, Vol.34 (2), p.152-157
Notas: 1997061407
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Descrição: Laboratory toxicity data contrasting responses of aquatic organisms to insecticides are important for focusing on sensitive species (steepest exposure-response slope) exposed to aqueous concentrations of these insecticides in field studies. These data also allow prediction of expected responses of aquatic species to a range of insecticide concentrations in situ. Aqueous 48-h toxicity tests were performed to contrast responses of Daphnia magna Straus, Hyalella azteca Saussure, Chironomus tentans Fabricius, and Pimephales promelas Rafinesque to acetylcholinesterase-inhibiting insecticides: chlorpyrifos, aldicarb, and chlordane. As expected, invertebrates tested (H. azteca, C. tentans, and D. magna) were >/= 200 times more sensitive than the vertebrate P. promelas to chlorpyrifos exposures. H. azteca was approximately 3.5 times more sensitive to chlorpyrifos (453% mortality/ g/L) than D. magna (128% mortality/ g/L). For both aldicarb and chlordane, C. tentans was the most sensitive species tested (2.44 and 2.54% mortality/ g/L, respectively). Differences in chlordane potency for test species varied only by a factor of approximately 2-3 (0.88% mortality/ g/L for H. azteca to 2.54% mortality/ g/L for C. tentans). Although point estimates of population responses such as LC50s, NOECs, and LOECs are of some utility for predicting effects of pesticides in aquatic systems, exposure-response slopes are also useful for extrapolation of laboratory data to diverse field situations, especially where sediment sorption may regulate insecticide exposure or bioavailability.
Editor: Heidelberg: Springer-Verlag
Idioma: Inglês

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Comparative toxicity of chlordane, chlorpyrifos, and aldicarb to four aquatic testing organisms

Moore, M.T ; Huggett, D.B ; Gillespie, W.B. Jr ; Rodgers, J.H ; Cooper, C.M

Heidelberg: Springer-Verlag

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