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| Baudrier, Jérôme. |
| The coastal area located between Quiberon and Noirmoutier is influenced by dilution plumes of the Loire and Vilaine rivers. Dysfunctions linked with a growing eutrophication of the environment have been observed over the last decades. Important imbalances such as massive deaths of the fauna in open embayments and more and more appearances of red tides give the area a unique character. Other environ mental problems are likely to disrupt human activites in the near future (bays silting up, quality of coastal water worsening, overfishing ...). This is why there is a real need to gather information on the subject. This will make it possible to identify problems and gaps in the area. Beside presenting pieces of information, the study offers various reflection... |
| Tipo: Text |
Palavras-chave: Loire; Vilaine; Panaches de dilution; Eutrophisation; Déséquilibres; Écosystème. |
| Ano: 2002 |
URL: http://archimer.ifremer.fr/doc/00016/12702/9624.pdf |
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| Haure, Joel; Ernande, Bruno; Palvadeau, Hubert; Nourry, Max; Penisson, Christian; Martin, Jean-louis. |
| Le transfert d'huîtres d'un secteur de production à un autre, à différents stades de l'élevage est une pratique courante chez les professionnels. L'influence de ces transferts sur la croissance et la survie est actuellement inconnue. Ainsi, il est apparu opportun d'essayer de mettre en évidence le degré de tolérance de diverses populations d'huîtres creuses vis à vis de transferts multiples dans des écosystèmes à productivité différentes. Cette étude a pris en compte la variabilité de deux paramètres (mortalité et croissance) de différentes familles d'huîtres creuses C. gigas soumises à des transferts plus ou moins fréquents entre deux milieux d'élevage dissemblables par la quantité de nourriture apportée (Skeletonema costatum). L'un des deux bassins... |
| Tipo: Text |
Palavras-chave: Crassostrea gigas; Plasticité; Écosystème; Tolérance; Transfert. |
| Ano: 2002 |
URL: http://archimer.ifremer.fr/doc/00102/21324/18947.pdf |
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| Sellier, Marion; Poitevin, Pierre; Goraguer, Herle; Faure, Jean-marie; Goulletquer, Philippe. |
| This work, conducted in 2013 , is a first monitoring of marine invasive species in Saint-Pierre and Miquelon archipelago. In global changing context on coastal ecosystems , accentuated by direct or indirect effects of human activities, it became essential to implement a survey on marine invasive species on Saint-Pierre and Miquelon shoreline. Fukui traps and tunicates collectors implemented on different stations as well as the timely completion of observational dives , have established the following conclusions : several non native species were detected within the local marine ecosystem. This species , such as Carcinus maenas , Ciona intestinalis , Botryllus schlosseri , Caprella mutica , etc. ... threaten some local marine ecosystems and some local... |
| Tipo: Text |
Palavras-chave: Espèces marines invasives; Saint-Pierre et Miquelon; Aquaculture; Écosystème; Marine invasive species; Saint-Pierre and Miquelon; Aquaculture; Ecosystem. |
| Ano: 2014 |
URL: http://archimer.ifremer.fr/doc/00175/28635/27118.pdf |
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