Population structure changes in zooplankton following PAH exposure in aquatic mesocosms
- Univ. of Guelph, Ontario (Canada)
Studies on polycyclic aromatic hydrocarbons (PAHs) have generally concentrated on single compounds. However, PAHs are usually found as mixtures in the aquatic environment and may pose significant risk to the ecosystem. A study was conducted to determine the effect of creosote (a mixture of PAHs) on pelagic invertebrates, including cladocerans, copepods, amphipods, and rotifers. Artificial aquatic mesocosms consisting of a simple community structure, including fish, algae, macrophytes and invertebrates, were utilized. Four doses of creosote and a control were used. Dosing was accomplished by adding contaminated sediment to the mesocosm, ranging from 100 cm{sup 2} to 3 m{sup 2} in area. As well, 1 to 8 creosote coated log pilings were added to several mesocosms, simulating aquatic exposure to preserved log pilings. The zooplankton at the various dose levels were enumerated. The changes in population structure will be described.
- OSTI ID:
- 31768
- Report Number(s):
- CONF-9410273-; TRN: IM9517%%63
- 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
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