|
|
|
|
|
| Morin, Jocelyne; Duhamel, S; De Roton, G. |
| Les résultats présentés dans ce fascicule sont en grande partie issus des campagnes d’échantillonnage réalisées par Ifremer et par la CSLN, entre 1995 et 2005, ainsi que des études liées à ces campagnes. L’état des lieux de la pêche professionnelle en estuaire de Seine est basé sur les résultats des enquêtes effectuées auprès des pêcheurs professionnels, dans le cadre du dispositif d’alerte Port 20001. Les différentes études, sur lesquelles nous nous sommes appuyées, ont été menées dans le cadre de contrats financés par la Préfecture de Région de Haute-Normandie, le Grand Port Maritime du Havre, la DREAL de Haute Normandie, l’Ifop, ainsi que dans le cadre du Programme Seine-Aval. Ce fascicule, en préparation depuis plusieurs années, nҋa pu être finalisé... |
| Tipo: Text |
|
| Ano: 2010 |
URL: http://archimer.ifremer.fr/doc/00319/43021/42535.pdf |
| |
|
|
| Blanchet, H; Lavesque, Nicolas; Ruellet, T; Dauvin, J; Sauriau, Pierre-guy; Desroy, Nicolas; Desclaux, C; Leconte, M; Bachelet, G; Janson, A; Bessineton, C; Duhamel, S; Jourde, J; Mayot, S; Simon, S; De Montaudouin, X. |
| This study deals with the application of macrozoobenthos-based biotic indices (BI) within the frame of the implementation of the European Water Framework Directive. More precisely, this study aimed at assessing the performance of five recently developed methodologies (BI) for the assessment of ecological quality status (EcoQ) in two semi-enclosed, sheltered coastal ecosystems and in one transitional water body situated along the Western French coast, namely Marennes-Oleron Bay, Arcachon Bay, and the Seine Estuary. This study showed that these five indices rarely agreed with each other, describing very different pictures of the overall EcoQ of the three study sites. This work also clearly underlined the limitations of these approaches, notably the... |
| Tipo: Text |
Palavras-chave: Transitional waters; Semi enclosed coastal ecosystems; Benthic invertebrates; Directive; European Water Framework; Biotic index. |
| Ano: 2008 |
URL: http://archimer.ifremer.fr/doc/2008/publication-3987.pdf |
| |
|
|
| Dauvin, J; Ruellet, T; Thiebaut, E; Gentil, F; Desroy, Nicolas; Janson, A; Duhamel, S; Jourde, J; Simon, S. |
| Since late 1990s the annelid polychaete Melinna palmata and the mollusc bivalve Ensis directus have been collected in the eastern part of the Bay of Seine (English Channel), indicating changes in the benthic communities. Melinna palmata was never collected prior to 2002, whereas it was reported in the muddy fine sands of the western part of the Channel, along the French (e.g. Bay of Cherbourg) and southern UK (e.g. Southampton Waters) coasts. Ensis directus was first reported in 1998 and now appears to be well implanted, given the abundant population collected in 2006. The colonization of Melina palmata seems to be a consequence of recent increase of the fine sediment in the eastern part of the Bay, while that of the invasive Ensis directus seems more... |
| Tipo: Text |
Palavras-chave: Invasive species; Environmental disturbances; New records; Range expansion; English Channel; Bay of Seine; Ensis directus; Melinna palmata. |
| Ano: 2007 |
URL: http://archimer.ifremer.fr/doc/2007/publication-3567.pdf |
| |
|
|
|
