Publication Details |
| Category | Text Publication |
| Reference Category | Journals |
| DOI | 10.1016/S0045-6535(00)00107-7 |
| Title (Primary) | Toxicity of fenvalerate to caddisfly larvae: chronic effects of 1- vs 10-h pulse-exposure with constant doses |
| Author | Schulz, R.; Liess, M. |
| Journal | Chemosphere |
| Year | 2000 |
| Department | OEC; OEKOTOX; COE |
| Volume | 41 |
| Issue | 10 |
| Page From | 1511 |
| Page To | 1517 |
| Language | englisch |
| Abstract | Episodic pollution events such as runoff or spraydrift can lead to a short-term (few hours) contamination of aquatic ecosystems with pesticides. So far, different short-term exposures with respect to long-term effects have not been studied. In the present study, caddisfly larvae, typical for agricultural streams (Limnephilus lunatus Curtis, 2nd and 3rd instar) were exposed for 1- vs 10-h to three different equivalent doses (μg h) of fenvalerate. After transfer into an artificial stream microcosm with pesticide-free water, chronic effects were observed over 240 days. Comparison of 1- and 10-h exposure revealed that 1-h contamination leads to stronger effects. The differences were significant for the sublethal endpoints emergence pattern and dry weight of adults (ANOVA, Fisher's PLSD; P<0.05). In terms of exposure dose, the difference between 1- and 10-h exposure equals a factor of 6 as a mean of all endpoints studied. The following significant effect levels for the 1-h exposure were obtained for the different endpoints investigated: reduced emergence success and production at 0.1 μg l−1, temporal pattern of emergence at 0.001 μg l−1, dry weight of adults at 0.01 μg l−1. |
| Persistent UFZ Identifier | https://www.ufz.de/index.php?en=20939&ufzPublicationIdentifier=7643 |
| Schulz, R., Liess, M. (2000): Toxicity of fenvalerate to caddisfly larvae: chronic effects of 1- vs 10-h pulse-exposure with constant doses Chemosphere 41 (10), 1511 - 1517 |
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