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Registros recuperados: 7
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La pêche du merlu à La Rochelle. Analyse des statistiques de 1966 ArchiMer
Meriel-bussy, Pol.
Le déclin de la pêche du merlu dans l'Atlantique nord-est alarme tous les pays dont les bateaux fréquentent les régions 2 et 3 du NEAFC. Une connaissance précise des quantités de poissons débarqués et des efforts de pêche dans les différents secteurs devient de plus en plus nécessaire. Nous avons donc été amené à poursuivre, en la développant, l'étude des statistiques du port de La Rochelle. Ce sont les premiers résultats de ce travail, obtenus à partir des données de 1966, que nous présentons ici.
Tipo: Text Palavras-chave: Pêche; Merlu; Statistiques.
Ano: 1967 URL: http://archimer.ifremer.fr/doc/00142/25326/23403.pdf
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Méthodes d'évaluation des ressources marines vivantes pour une exploitation durable ArchiMer
Trenkel, Verena.
In my work, which is summarised in this paper for obtaining accreditation to supervise research (the HDR), I addressed three areas: i) statistical methods of estimating the density of living resources, ii) mathematical models of population dynamics for estimating the abundance of marine populations and iii) methods for detecting temporal changes in the status of exploited populations. My work has focused on: i) Many studies of the observability of fish by trawling and by video and the development of stochastic models to better assess local fish densities. ii) Development of models without commercial catches, using Bayesian and frequentist approaches; the study of multi-specific relationships and the proposal for a threshold predator-prey model. iii)...
Tipo: Text Palavras-chave: Statistics; Abundance estimation; Stock assessment; Statistiques; Estimation d'abondance; Evaluation des stocks.
Ano: 2006 URL: http://archimer.ifremer.fr/doc/2006/rapport-1545.pdf
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Problématique de suivi de la pêche insulaire ArchiMer
Reynal, Lionel; Maguer, Cedric; Taquet, Marc.
Insular fisheries statistics are often insufficient to allow a good management of halieutics resources. The reasons of this insufficiency, in large part, is due to inadequate methods for recording catch data and analyzing fishing effort. This presentation proposes the use of a software pro gram (<< S.P.1. ») which helps to elaborate statistics from sampling, making easier the work of personnel who are charged with producing encoded informations on insular fisheries
Tipo: Text Palavras-chave: Statistiques; Pêche; Insulaire; Statistics; Fisheries; Insular.
Ano: 1998 URL: http://archimer.ifremer.fr/doc/00113/22410/20107.pdf
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Rapport d'activité 2006 du Département Sciences et Techniques Halieutiques (Brest/Lorient) ArchiMer
Talidec, Catherine.
Le Département STH a été constitué pour établir des diagnostics et des avis, et proposer des solutions d'aménagements des pêcheries, en réponse à la demande sociétale émanant des Institutions, de la profession et du public pour une exploitation durable des ressources halieutiques (économiquement efficace, socialement équitable et écologiquement soutenable). Dans ce but, le département mène une activité de recherche et de développement thématique à caractère national. Il prend aussi en charge la surveillance des ressources et des pêcheries de Bretagne. Les activités du département s'inscrivent dans trois axes de recherche structurants : <br />&#9830; Développement d'indicateurs sur les pêcheries assortis d'intervalles de confiance <br...
Tipo: Text Palavras-chave: RMD; Acoustique; Avis; Aires marines protégées; Récifs artificiels; Sélectivité; Prises accessoires; Modélisations; Expertises halieutiques; Sondeurs; Campagnes à la mer; Débarquements; Échantillonnages; Effort de pêche; Activité des flotilles; Statistiques.
Ano: 2007 URL: http://archimer.ifremer.fr/doc/00042/15357/12714.pdf
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Rationalisation de l'échantillonnage biologique pour l'évaluation des stocks des pêcheries marines en golfe de Gascogne ArchiMer
Pelletier, Dominique; Beucher, Helene; Chevalier, Robert; Laurec, Alain; Alperi, J.; Pereda, P.; Guichet, Roger; Dupouy, Herve; Peronnet, Isabelle.
The aim of the project "rationalization of biological sampling for stock assessment of marine fisheries in the bay of Biscay" is to perform statistical methods and computer programs allowing to test prognoses and diagnoses based on estimates of fishing mortalities, recruitments, yields per recruit, and the "gain-loss" function. The project gathers the laboratories of the community working on the Bay of Biscay fisheries, namely - Santander in Spain (1. E. 0) - La Rochelle and Lorient in France (IFREMER). A descriptive study has been carried out. The prepared documents contain a description of the procedures used to collect the information, by each of the laboratories involved, on: - landings - biological samplings. More comprehensive data have been gathered...
Tipo: Text Palavras-chave: Capture; Marine biology; Fisheries; Megrim; Monk; Hake; Data collection; TAC; Bay of Biscay; Stock assessement; Sampling; Statistics; Capture; Biologie marine; Halieutique; Cardine; Baudroie; Merlu; Collecte de données; TAC; Golfe de Gascogne; Evaluation des stocks; Echantillonnage; Statistiques.
Ano: 1991 URL: http://archimer.ifremer.fr/doc/1991/rapport-3621.pdf
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Simulation de la dynamique de pêcherie : modélisation, complexité et incertitude ArchiMer
Mahevas, Stephanie.
Fisheries are defined by a set of fishermen and of marine populations impacting each other in a spatial-limited marine ecosystem. Within the over-exploitation context and according to ratified sustainable management objectives, my research has been focused on the development and a caution use of a mechanistic model describing fisheries dynamics. This model allows for integrating existing knowledge of fisheries. It aims at improving the understanding of fisheries functioning and at investigating the impact of fishing regulations on fisheries dynamics. This modelling exercise has supported many methodological developments for its parametrisation and its use in uncertainty context. Concerned with promoting a correct use of a complex model (that ambiguity link...
Tipo: Text Palavras-chave: Statistics; Spatial; Management; Optimal complexity; Sensitivity; ISIS Fish; Statistiques; Spatial; Gestion; Complexité optimale; Sensibilité; ISIS Fish.
Ano: 2009 URL: http://archimer.ifremer.fr/doc/2009/these-7302.pdf
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Suivi de la biodiversité par vidéo sous-marine : analyse d’images et analyse des données recueillies dans la zone de Koné, Province Nord de Nouvelle-Calédonie ArchiMer
Jac, Cyrielle.
This study describes my work within the AMBIO project at the IFREMER center of Noumea. The aim of this study is to analyze and to treat underwater video to make a short ecological report of Koné lagoon. After an explanation of the video technics used (STAVIRO) and of the pictures analyze protocols, you will find a description of the working area. Next, this report presents ecological status of this place.
Tipo: Text Palavras-chave: Stations Vidéos Rotatives; Ichtyofaune; Habitat; Réserve; SIG; Statistiques; STAVIRO; Fish; Habitat; Reserve; SIG; Statistics.
Ano: 2014 URL: http://archimer.ifremer.fr/doc/00250/36078/34629.pdf
Registros recuperados: 7
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