Lipid content and time-to-death-dependent lethal body burdens of naphthalene and 1,2,4-trichlorobenzene in fathead minnow (Pimephales promelas)
| Autor: | Dick T.H.M. Sijm, Inge C.M. van de Klundert, P. Gert-Jan de Maagd, Annemarie P. van Wezel, Antoon Opperhuizen |
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| Rok vydání: | 1998 |
| Předmět: |
Time Factors
Health Toxicology and Mutagenesis Cyprinidae Naphthalenes Chlorobenzenes Toxicology chemistry.chemical_compound Structure-Activity Relationship Animal science biology.animal Animals Naphthalene biology Lethal dose Public Health Environmental and Occupational Health General Medicine Minnow biology.organism_classification Pollution Lipids chemistry Lipid content Toxicity 1 2 4-Trichlorobenzene Body Burden Pimephales promelas Water Pollutants Chemical |
| Zdroj: | Ecotoxicology and environmental safety. 38(3) |
| ISSN: | 0147-6513 |
| Popis: | For naphthalene (NAPH) and 1,2,4-trichlorobenzene (TCBz), lethal body burdens (LBB) of 8 +/- 3.1 mmol/kg wet wt (ww) and 14 +/- 4.5 mmol/kg (ww), respectively, were determined in fathead minnow (Pimephales promelas). LBBs of both compounds were found to increase with increasing lipid content and time-to-death of fish within the same aquarium. The correlation with time-to-death suggests that besides lipid content at least one other factor causes intraspecies variation in LBBs. When intraspecies variation is excluded by comparing mean LBBs from different aquaria and exposure regimes, LBBs still vary with time-to-death. In contrast to the situation within one aquarium, between different aquaria and exposure regimes often a decrease in LBB with time-to-death is found. The present study and others indicate that LBBs can vary with time-to-death. Therefore, a time-independent LBB cannot be assumed. |
| Databáze: | OpenAIRE |
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