Effect of increasing salinity on the acute toxicity of a commercial endosulfan formulation to the bdelloid rotifer Philodina acuticornis odiosa |
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| Authors: | G. Allinson T. Hagen S. Salzman A. Wightwick D. Nugegoda |
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| Affiliation: | 1. Future Farming Systems Research Division, Department of Primary Industries , PO Box 114, Queenscliff 3225, Australia graeme.allinson@dpi.vic.gov.au;3. School of Applied Sciences, RMIT University Bundoora West Campus , GPO Box 71, Bundoora 3083, Australia;4. School of Information Systems, Deakin University , PO Box 423, Warrnambool 3280, Australia;5. Future Farming Systems Research Division, Department of Primary Industries , PO Box 114, Queenscliff 3225, Australia |
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| Abstract: | Pesticides, such as endosulfan, can enter surface waters such as lakes and rivers, potentially posing an ecological risk. Rotifers are a dominant zooplankton species in many inland freshwater lakes in Australia; such lakes can also experience increased salinities. Acute toxicity tests (24?h) were conducted to determine the toxicity of a commercial formaulation of endosulfan to the freshwater rotifer Philodina sp. and to investigate the influence of increasing salinity on endosulfan toxicity. Rotifers were found to be relatively tolerant to endosulfan with an EC50 of 1.75?mg?L?1 (a.i.), with results also suggesting that there are no interactive effects of salinity on endosulfan toxicity. |
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| Keywords: | endosulfan toxicity rotifer salinity |
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