Behavioural Effects of Chemically Dispersed Oil and Subsequent Recovery in Diploria strigosa (Dana)
| Autor: | Anthony H. Knap, H. R. Frith, Sheila C. Wyers, T. D. Sleeter, S. R. Smith, Richard E. Dodge |
|---|---|
| Rok vydání: | 1986 |
| Předmět: |
chemistry.chemical_classification
Diploria Light crude oil Diploria strigosa Ecology biology Hermatypic coral Aquatic Science biology.organism_classification Dispersant chemistry.chemical_compound Oceanography Hydrocarbon Animal science chemistry Petroleum Corexit Ecology Evolution Behavior and Systematics |
| Zdroj: | Marine Ecology. 7:23-42 |
| ISSN: | 1439-0485 0173-9565 |
| DOI: | 10.1111/j.1439-0485.1986.tb00146.x |
| Popis: | Survival and behaviour of the hermatypic coral Diploria strigoxa was studied during 6-24 h doses with water-accomodated fractions of chemically dispersed crude oil, and for a subsequent recovery period of 1 month. Experiments utilized a flow-through laboratory dosing procedure and incorporated petroleum hydrocarbon measurements in order to simulate a major but short-term oil spill in shallow subtidal benthic reef environments. Chemically dispersed oil treatments consisted of Arabian Light Crude oil with Corexit 9527 or BPllOOWD at 1-20ppm concentrations of oil. In general, effects observed were sub-lethal, temporary, and associated with the highest concentrations tested. Responses to the presence of dispersed oil at 20ppm for 24 h included mesenterial filament extrusion, extreme tissue contraction, tentacle retraction and localized tissue rupture. The nature and severity of reactions during the dosing phase varied between colonies and treatments, but colonies typically resumed normal behaviour within 2 h to 4 d of the recovery period. It therefore seems unlikely that observed biological effects would impair long-term viability. |
| Databáze: | OpenAIRE |
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