Publication Details |
| Category | Text Publication |
| Reference Category | Journals |
| DOI | 10.1897/04-218R.1 |
| Document | Shareable Link |
| Title (Primary) | Influence of duration of exposure to the pyrethroid fenvalerate on sublethal responses and recovery of Daphnia magna straus |
| Author | Reynaldi, S.; Liess, M. |
| Source Titel | Environmental Toxicology and Chemistry |
| Year | 2005 |
| Department | OEKOTOX |
| Volume | 24 |
| Issue | 5 |
| Page From | 1160 |
| Page To | 1164 |
| Language | englisch |
| Keywords | Pulse exposure; Toxicant; Population growth rate; Recovery; Daphnia magna |
| Abstract | This study compares lethal and sublethal responses of Daphnia magna Straus exposed to fenvalerate continuously (21 d) and as a pulse (24 h). Survival was reduced more severely in the continuous- than in the pulse-exposure regime. Complete mortality occurred at 1 μg/L for continuous exposure and at 3.2 μg/L for pulse exposure. Regarding reproductive endpoints, fenvalerate delayed the age at first reproduction. At the beginning of the reproductive phase (day 10), this delay resulted in a reduction of the neonates per living female at similar concentrations in both exposure regimes (0.3 and 0.1 μg/L for continuous and pulse exposure, respectively). The population growth rate was inhibited in continuous and pulse exposure at 0.3 and 0.6 μg/L, respectively. However, the effects of fenvalerate in the pulse exposure were transient. After 21 d, a recovery to values close to the controls occurred with respect to the total neonates per female and the population growth rate over a broad range of concentrations from 0.1 up to 1 μg/L. In contrast, no substantial recovery occurred in the continuous-exposure regime. |
| Persistent UFZ Identifier | https://www.ufz.de/index.php?en=20939&ufzPublicationIdentifier=3714 |
| Reynaldi, S., Liess, M. (2005): Influence of duration of exposure to the pyrethroid fenvalerate on sublethal responses and recovery of Daphnia magna straus Environ. Toxicol. Chem. 24 (5), 1160 - 1164 10.1897/04-218R.1 |
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