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| Charuau, Anatole; Chesnier, Véronique; Conan, Gérard; Derennes, Marc; Destanque, Catherine; Guenole, Annie; Isifou, Amadou; Jezequel, Michèle; Miossec, Gilbert; Missaoui, Ichmi; Morizur, Yvon; Rivoalen, Jean-jacques. |
| Introduction : Since 1978, new measures to better manage lobster fisheries were implemented in the Celtic Sea within the context of Community regulations. Meshing, in particular, was set at 60mm, but many owners, in order to maintain sufficient leeway vis-à-vis the regulations and to avoid administrative hassles adopted at the outset fish meshing at 70mm, even 80mm. Certain habits aiming to compensate for the losses due to these increases were established: Adoption of better-performing trawls, increase in the secondary catch and enlargement of the fisheries. At the same time, especially because of strong demand from international bodies, OEM and especially EEC, knowledge about the lobster spread and more reliable assessments were achieved, the main problem... |
| Tipo: Text |
Palavras-chave: Stock assessment; Norway lobster; Celtic sea; Nephrops Norvegicus; Crustacea; Lobster fishery; Mer Celtique; Nephrops Norvegicus; Crustacea; Effort Peche; Sex Ratio; Capture; Relation Taille Poids; Maillage; Chalut; Gestion stock; Peche. |
| Ano: 1982 |
URL: http://archimer.ifremer.fr/doc/1982/rapport-2337.pdf |
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| Charuau, Anatole. |
| If Sea Bass fish farming (Dicentrarchus labrax L.) is currently experiencing an increase in Southern Europe, it is vital, in order to better reflect raising structures, to control its wastes. In order to do so, quantifying this species' wastes is essential to be able to present simple excretion ratios, easily useable by the farmer. Those ratios have been based on nitrogen, phosphorus and carbon masses established on intensive farming and 4 batches belonging to his stock (averaging 24, 5 to 362, 5 g). Each batch was followed up during the course of 1 month and fish farming in its entirety for 2 months. Mass assessments for nitrogen and phosphorus were level ((intrants = extrants) but never precise, contrary to what can be found in bibliography. The main... |
| Tipo: Text |
Palavras-chave: Fleet; Statistics; Celtic sea; Discard; Lobster fishery. |
| Ano: 1985 |
URL: http://archimer.ifremer.fr/doc/1985/rapport-1753.pdf |
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