Journal
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
Volume 25, Issue 14, Pages 13235-13243Publisher
SPRINGER HEIDELBERG
DOI: 10.1007/s11356-016-7451-1
Keywords
Freshwater shrimps; Tropics; Insecticides; Fungicides; Ecological risk assessment; Relative tolerance (Trel); Species sensitivity distributions
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Funding
- Brazilian government through the Special Visiting Researcher program (MEC/MCTI/CAPES/CNPq/FAPs) [402392/2013-2]
- Portuguese government (FCT) [SFRH/BPD/109199/2015]
- Fundação para a Ciência e a Tecnologia [SFRH/BPD/109199/2015] Funding Source: FCT
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The aquatic risk assessment of pesticides in tropical areas has often been disputed to rely on toxicity data generated from tests performed with temperate species. Given the differences in ecosystem structure between temperate and tropical ecosystems, test species other than those used in temperate regions have been proposed as surrogates for tropical aquatic effect assessments. Freshwater shrimps, for example are important components of tropical freshwater ecosystems, both in terms of their role in ecosystem functioning and their economic value. In the present study, available toxicity data of (tropical and sub-tropical) freshwater shrimps for insecticides and fungicides were compiled and compared with those available for Daphnia magna and other aquatic invertebrates. Freshwater shrimps appeared to be especially sensitive to GABA-gated chloride channel antagonist and sodium channel modulator insecticides. However, shrimp taxa showed a moderate and low sensitivity to acetylcholinesterase inhibiting insecticides and fungicides respectively. Implications for the use of freshwater shrimps in tropical pesticide effect assessments and research needs are discussed.
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