Validating bioindicators of PAH effects in fish: Evaluating responsiveness to creosote exposure in aquatic mesocosms
- Univ. of Guelph, Ontario (Canada)
- Canada Centre for Inland Waters, Burlington, Ontario (Canada)
While studies involving controlled exposures to PAHs have typically studied the effects of exposure to individual compounds, PAHs are usually present in the environment in complex mixtures. Some of these (eg. creosote) have been widely used and present potential risks to aquatic ecosystems. The objective of the current research is to evaluate whether population effects visible in fish at high creosote concentrations would be reflected in biomarker responses at lower concentrations. Goldfish (Carassius auratus) were exposed to five levels of creosote contamination in microcosms containing a simple community structure (including macroinvertebrates and macrophytes). Preliminary results have shown that changes in P450 induction, bile fluorescence, and levels of reproductive hormones are visible at lower concentrations than population effects such as increased mortality, reduced secondary sexual characteristics, and reduced fecundity.
- OSTI ID:
- 31767
- Report Number(s):
- CONF-9410273-; TRN: IM9517%%62
- Resource Relation:
- Conference: 15. annual meeting of the Society of Environmental Toxicology and Chemistry (SETAC), Denver, CO (United States), 30 Oct - 3 Nov 1994; Other Information: PBD: 1994; Related Information: Is Part Of Society of Environmental Toxicology and Chemistry 15th annual meeting: Abstract book. Ecological risk: Science, policy, law, and perception; PB: 286 p.
- Country of Publication:
- United States
- Language:
- English
Similar Records
Population, community, and bioindicator responses to creosote in aquatic mesocosms
Plant bioindicators for polycyclic aromatic hydrocarbon toxicity in aquatic microcosms