Acute and Chronic Effects of the Insecticide-Endosulfan on Freshwater Cladoceran, Moina macrocopa Straus
Journal Publication ResearchOnline@JCUAbstract
Acute and chronic effects of insecticide-endosulfan on the survival and reproduction performance of Moina macrocopa were determined in a laboratory study. Endosulfan concentrations that cause 50% mortality (LC50) after exposure for 24 and 48 h were 3.34 and 0.16 mg L−1, respectively. Average longevity, initial age of reproduction and intrinsic rate of natural increase were reduced at 0.002 mg L−1. Fecundity was greatly reduced by about 70% at 0.0004 mg L−1 and approximately 97% at 0.002 mg L−1 as compared to control organisms throughout the whole life span of 15 days. If environmental concentration of endosulfan do not exceed 0.0004 mg L−1, application of this insecticide is unlikely to induce detrimental effects on these cladoceran populations in agro-ecosystem.
Journal
Bulletin of Environmental Contamination and Toxicology
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Volume
79
ISBN/ISSN
1432-0800
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Pages Count
5
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Publisher
Springer
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EISSN
N/A
DOI
10.1007/s00128-007-9234-3