Sensitivity of Aquatic Invertebrate Resting Eggs to SeaKleen super( registered ) (Menadione): A Test of Potential Ballast Tank Treatment Options

The acute toxicity of the proposed biocide SeaKleen super( registered ) on resting eggs of Brachionus plicatilis, a freshwater copepod, Daphnia mendotae, and Artemia sp. was examined. The SeaKleen was toxic to resting eggs of all taxa. Daphnia mendotae resting eggs encased in protective ephippia wer...

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Published inEnvironmental toxicology and chemistry Vol. 25; no. 2; p. 552
Main Authors Raikow, David F, Reid, David F, Maynard, Erynn E, Landrum, Peter F
Format Journal Article
LanguageEnglish
Published 01.02.2006
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Summary:The acute toxicity of the proposed biocide SeaKleen super( registered ) on resting eggs of Brachionus plicatilis, a freshwater copepod, Daphnia mendotae, and Artemia sp. was examined. The SeaKleen was toxic to resting eggs of all taxa. Daphnia mendotae resting eggs encased in protective ephippia were the least sensitive, as indicated by a 24-h lethal concentration of toxicant to 90% of organisms of 8.7 mg/L. It was observed that the SeaKleen induced teratogenic effects in D. mendotae and Artemia sp.. The exposure to sunlight quickly degraded SeaKleen, which lost all toxicity after 72 h outdoors. The burial of D. mendotae ephippia in natural lake sediment reduced SeaKleen toxicity by a factor of 20.
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ISSN:0730-7268