Evolution des populations bactériennes dans les sédiments des marais maritimes de l'Ile Grande pollués par I'Amoco Cadiz Evolution of Bacterial Populations in Salt Marsh Sediments of Ile Grande Polluted by Amoco Cadiz
| Autor: | Eveline Vacelet, Gilbert Mille |
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| Rok vydání: | 1985 |
| Předmět: |
geography
geography.geographical_feature_category biology Ecology Microorganism Heterotroph Heterotrophic bacteria Bacterial population Aquatic Science biology.organism_classification Salt marsh Bacterial activity General Agricultural and Biological Sciences Oil pollution Ecology Evolution Behavior and Systematics Bacteria |
| Zdroj: | Internationale Revue der gesamten Hydrobiologie und Hydrographie. 70:815-827 |
| ISSN: | 1522-2632 0020-9309 |
| DOI: | 10.1002/iroh.19850700606 |
| Popis: | Microbial investigations on heterotrophic bacteria (MPN counts, adenylates charge, growth rate and enzymatic activities) and hydrocarbon utilizing microorganisms (MPN counts) were carried out during three years in the salt marshes of Ile Grande. The aim was to follow their recovery after oil pollution. Oil degradation is related to bacterial activity (depending on site, depth in the soil, redox level and hydrocarbon concentrations). The results for the three years show a significant enhancement of the microflora during the first year (corresponding to removal of n. alkanes) followed by a decrease in bacterial activity which persisted for over two years. The activity of the heterotrophic bacterial population is deeply disturbed compared with unoiled sites, and these shifts remain detectable three years after oiling. This study does not modify our previous estimation regarding the recovery of the salt marshes. |
| Databáze: | OpenAIRE |
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