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A fleet-metier based approach of the small scale fishing activity in the French West Indies ArchiMer
Guyader, Olivier; Reynal, Lionel; Demaneche, Sebastien; Berthou, Patrick; Daures, Fabienne.
The development of the ecosystemic approach for fisheries supposes to improve integrated analysis of fisheries by considering the biological as well as the socio-economic dimensions of the exploitation. A prerequisite for integrated analysis is the improvement in the knowledge of fleets structure, fleet evolution and allocation of fishing effort in the different fisheries. However, small scale fisheries are often characterized by a lack of knowledge on the vessel fishing activity. This paper first presents a data collection methodology recently applied in the French West (Guadeloupe and Martinique) for the follow up of the whole vessel population. Based on a statistical analysis of these data sets, the paper develops a fleet-metier matrix giving the...
Tipo: Text Palavras-chave: Flottille; Métiers; Activité; Petite pêche; Gestion des pêches; Fleet; Metiers; Fishing activity; Small scale fisheries; Fisheries management.
Ano: 2007 URL: http://archimer.ifremer.fr/doc/00243/35456/33985.pdf
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Evolution à court terme des effectifs et de l'activité des communautés bactériennes dans des écosystèmes d'aquaculture ArchiMer
Bianchi, Armand J.; Bianchi, Micheline A..
SHORT-TERM VARIATION OF BACTERIAL COMMUNITIES CONCENTRATION AND ACTIVITY IN AQUACULTURE ECOSYSTEMS. Two kinds of short-term experiments were carried out on sea-water bacterial commun­ities of shrimp aquaculture in Polynesia at the Centre Océanologique du Pacifique (Tahiti). A 12 m3 sea-water tank was considered. The total number (AOC) and hétérotrophie activity of bacteria were studied during a 48 hours experiment with a 2 hours sampling time The total bacterial community was about 10? bacteria, and nitrifying bacteria were about 10 bacteria ml-1 and could showed doubling time of 7 hours. Several nitrogen sources were added in five liter flasks. With N-NH4 enrichment no great changes in activity and number could be seen. With organic nitrogen the number of...
Tipo: Text Palavras-chave: Dynamique; Numération; Activité; Communautés bactériennes; Aquiculture.
Ano: 1982 URL: http://archimer.ifremer.fr/doc/00306/41744/40955.pdf
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Experimental study of filtration activity in Ditrupa arietina (Annelida Polychaeta) using an automated image analysis system ArchiMer
Duchene, Jean Claude; Jordana, Esther; Charles, François; Gremare, Antoine; Amouroux, Jean Michel.
An automated image analysis system designed to assess the activity of benthic organisms is described. This system is used to study filtration in the serpulid polychaete Ditrupa arietina. The video sensor of the system is composed of a black and white charged coupled device, a microprocessor, a memory and an interface board. It is driven by real-time routines, which are downloaded in permanent memory prior to each experiment. These routines control picture acquisition frequency and compute the differences in grey levels between the image recorded at a given time and a reference image (corresponding to no filtration in the case of D. arietina). These differences are used to detect numerical objects, which are stored in the memory board. At the end of each...
Tipo: Text Palavras-chave: Polychètes; Analyse d'images; Activité; Filtration; Polychaetes; Image analysis; Activity; Filtration.
Ano: 2000 URL: http://archimer.ifremer.fr/doc/00323/43377/42834.pdf
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Guide méthodologique d’aide à la prise en compte des problématiques maritimes dès le diagnostic des SCOT côtiers ArchiMer
Rodriguez, Thibault; Fourrier, Adeline; Mazouni, Nabila; Rey-valette, Helene; Roussillon, Jean Philippe; Laugier, Thierry; Loubersac, Lionel.
After a reminder on the program SYSCOLAG (Coastal and Lagoons Systems), of the regulatory and legislative context in territorial economic planning on the coast, we describe the structure of the developed methodological tool. We clarify then the method according to its three main trunk roads: effects of the activities and uses on the economy of the territory, the effects of the activities and uses on the natural environment and the living environment, the evaluation of the interactions between activities and uses. We apply the method exposed in a frame demonstrator by taking the scenario of the lagoon and coastal territory of the Thau Basin (Hérault). A set of appendices, including in particular evaluation grids are supplied with support for the...
Tipo: Text Palavras-chave: Développement durable; Approche participative et pluridisciplinaire; SCOT; Volet Maritime; Diagnostic; Indicateur; Mer; Littoral; Impact environnemental; Effet socio-économique; Interaction; Activité; Usage.
Ano: 2007 URL: http://archimer.ifremer.fr/doc/00189/30058/28545.pdf
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Synthèse des flottilles de pêche 2007 - Flotte Mer du Nord - Manche-Atlantique ArchiMer
Leblond, Emilie; Daures, Fabienne; Berthou, Patrick; Merrien, Claude; Pitel, Mathilde; Jezequel, Michele.
Le présent document, sixième édition d'une série lancée en 2000, réactualise la Synthèse des flottilles 2006, publiée en 2008. Il ne prétend pas rendre compte de l'ensemble des données collectées depuis cette précédente édition. Cependant, il a pour ambition de présenter de manière synthétique, l'activité et la situation économique de la flotte de pêche française métropolitaine (façades mer du Nord Manche, Atlantique et Méditerranée), à destination d'un public très large. La Synthèse des flottilles de pêche 2007 est une compilation de fiches synthétiques, chacune d'entre elles étant construite sur le même format. : - La fiche de synthèse France Métropolitaine Elle décrit la flotte des façades Mer du Nord Manche, Atlantique et Méditerranée. Elle propose en...
Tipo: Text Palavras-chave: Marins; Navires; Situation économique; Peche; Activité; Flottilles; Méditerranée; Atlantique; Mer du Nord; Manche.
Ano: 2009 URL: http://archimer.ifremer.fr/doc/2009/rapport-6929.pdf
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Tableau de bord de l'activité de la flotte de pêche du Finistère – étude en soutien à l'élaboration du schéma de référence des dragages en Finistère ArchiMer
Leblond, Emilie; Demaneche, Sébastien; Bermell, Sylvain.
This document was established within the framework of a study carried out to back up the elaboration of a dredging scheme in Finistère, answering a demand from the DDE-Finistère, and contains a list of dashboards concerning Finistère's fishing fleet and its activity in 2006, as well as charts presenting the main indicators per fishing area (statistical rectangle)....
Tipo: Text Palavras-chave: Cartes; Production; Activité; Finistère; Pêche; Flotte.
Ano: 2008 URL: http://archimer.ifremer.fr/doc/2008/rapport-3828.pdf
Registros recuperados: 6
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