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| Pitel, Mathilde; Berthou, Patrick; Fifas, Spyros. |
| Basically, a dredge is a bottom-towed gear and consists of a metal frame with a blade or teeth, to dig into the sediment and extract the shelled molluscs, and a mesh bag to collect the catch. Whereas hand dredging is observed on some intertidal beds (Donax trunculus in France), the use of dredge generally needs a fishing boat. There is a great diversity of dredge types, with specific designs used to target different species in particular beds: Manual dredges for Donax (Donax trunculus), Warty venus (Venus verrucosa) and clams (Venerupis pulastra, Ruditapes sp) Dredges for King scallops (Pecten maximus) Dredges for Warty venus (Venus verrucosa) Dredge for Queen scallops (black and white, Chlamys varia and Chlamys opercularia) Dredges for small... |
| Tipo: Text |
Palavras-chave: Management; Environmental impact; Spisula; Bittersweet palourdi; Fishing boat; Clam; Dredge; Brittany; Gestion; Impact environnemental; Spisula; Amande; Navire de pêche; Drague; Bretagne. |
| Ano: 2001 |
URL: http://archimer.ifremer.fr/doc/2001/rapport-4608.pdf |
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| Pitel, Mathilde; Savina, Marie; Fifas, Spyros; Berthou, Patrick. |
| The exploited stocks of wild bivalves (common cockles, dog cockles, clams, and spisules) in the Norman-Breton gulf vary according to the fishing activity and the environmental conditions. Different studies, carried out by the Ifremer in this region (between 1982 and 1998), enabled the evaluation of the stocks available for fishing as well as the collection of data on these species (demographic structure, growth...). For more information on the 1993-1994 studies and a presentation of the site and the fishery please refer to the reports by Berthou, 1987 and Noël et al, 1995. The bivalve expedition conducted in May 2002, enabled us to update the data on the populations of dog cockles and banded carpet shells, then of spisules and clams, using the same... |
| Tipo: Text |
Palavras-chave: Bittersweet palourdi; Spisula; Clam; Brittany norman gulf; Bibalves; Brittany; Fishing; Crepidule; Amande de mer; Spisule; Praire; Palourde; Golfe normand breton; Bivalves; Bretagne; Pêche. |
| Ano: 2004 |
URL: http://archimer.ifremer.fr/doc/2004/rapport-4609.pdf |
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