Hydrocarbon weathering in seashore invertebrates and sediments over a two-year period following the Amoco Cadiz oil spill: influence of microbial metabolism
Oudot, J.; Fusey, P.; Van Praët, M.; Féral, J.-P.; Gaill, F. (1981). Hydrocarbon weathering in seashore invertebrates and sediments over a two-year period following the Amoco Cadiz oil spill: influence of microbial metabolism. Environ. Pollut. 26(2): 93-110
In: Environmental Pollution. Elsevier: Barking. ISSN 0269-7491; e-ISSN 1873-6424, meer
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| Auteurs | | Top |
- Oudot, J.
- Fusey, P.
- Van Praët, M.
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- Féral, J.-P., meer
- Gaill, F.
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| Abstract |
The weathering of aliphatic and aromatic hydrocarbons from the Amoco cadiz oil was monitored from May 1978 to Jan. 1980 in selected seashore invertebrates and sediments of the polluted area in Brittany, using high temperature high resolution gas-liquid chromatography. The major part of the oil was relatively rapidly eliminated but some petroleum constituents, such as log-chain n-alkanes, triterpanes and alkylated phenanthrenes and dibenzothiophenes, appeared to persist for a time. In high energy sites (Roscoff beach), depuration was generally quite complete between 12 and 18 months after the wreck, whereas, in sheltered muddy sediments and associated organisms of Aber Benoit and Aber Wrach, the presence of neosynthesized very long-chain alkanes up to nC56 was shown. These compounds are believed to result from bacterial metabolism and were still clearly visible 22 months after the accident. Microbial degradation was the main weathering factor and bacterial counts in the Aber Benoit muds showed that almost all the bacteria present were adapted to hydrocarbon utilization. |
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