The ecological quality status of the Bay of Seine and the Seine estuary: Use of biotic indices
In: Marine Pollution Bulletin. Macmillan: London. ISSN 0025-326X; e-ISSN 1879-3363, meer
Ook verschenen in:Devlin, M.; Best, M.; Haynes, D. (Ed.) (2007). Implementation of the Water Framework Directive in European marine waters. Marine Pollution Bulletin, 55(Spec. Issue 1-6). Elsevier: Amsterdam. 297 pp., meer
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| Trefwoorden |
Distribution > Ecological distribution
Estuarine environment
Eutrophic waters
Macrobenthos
Species diversity
ANE, France, Seine Bay [Marine Regions]; ANE, France, Seine Estuary [Marine Regions]; ANE, Kanaal [Marine Regions]
Marien/Kust |
| Author keywords |
Seine estuary; Bay of Seine; English Channel; macrobenthos; bioticindex; benthic index |
| Auteurs | | Top |
- Dauvin, J.-C., meer
- Ruellet, T.
- Desroy, N.
- Janson, A.-L.
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| Abstract |
Using recent indices developed, in part, for use under the European Water Framework Directive (AMBI, BENTIX, BOPA, BQI, I2EC and the trophic index ITI), the ecological quality status of two highly contaminated environments-the Bay of Seine and the Seine estuary (Eastern English Channel)-was determined on several spatial and temporal scales. Data from 604 observations gathered over a 14-year period (1988-2002) were analyzed, and the results used to show the relationship between biotic indices, environmental variables and classic descriptors (e.g., number of species, total abundance, dominance index, ES(50) and Shannon/Brillouin diversities). Though the specific ecological quality (EcoQ) values calculated with the various indices were different, the overall trend of the results was similar. Synthesizing the values produced by the six indices used in the study allowed attribution of a high to good EcoQ status to the Bay of Seine and a moderate EcoQ to the estuary. The mesh size used when processing samples was proved to have no effect in winter on the EcoQ values for either body of water. |
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