Home Itens selecionados Provedores de dados OAI Créditos Sobre Ajuda

			Busca avançada
	Provedor de dados 5 (3) Autor Andrianavaly, Jean (1) Antoine, Loic (1) Fifas, Spyros (1) Gailhard, Isabelle (1) Goujon, Michel (1) Perodou, Jean-bernard (1) Mais... Palavra-chave Modèle linéaire (3) Linear model (2) Abundance index (1) Chalutiers du golfe du Lion (1) Common dolphin (1) Dilution schema (1) Driftnet fishery (1) Estuaire (1) Estuary (1) Fishing power (1) Fishing statistic (1) Gironde (1) Indice d'abondance (1) Linear mode1 (1) Lion's gulf trawlers (1) Loire (1) Nutrients (1) Nutriments (1) Puissance de pêche (1) Pêche au filet maillant dérivant (1) Mais... Tipo do documento Text (3) Ano 2000 (1) 1999 (1) 1998 (1) País France (3) Idioma Francês (2) Inglês (1)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 3 Primeira ... 1 ... Última Puissance de peche et relations avec les caracteristiques techniques des navires. Exemple de flottilles pratiquant le chalutage en Mediterranee 5 Perodou, Jean-bernard; Andrianavaly, Jean. The topic of this work is to analyse two sets of fishing statistics, one concerns ships which landed their catches at Sète during the 88-94 period, the other ships which landed their catches in different fish markets of Lion's gulf during the 94-97 period. Cpue are treated by a log-linear model with three qualitative variables which provides fishing powers of ships, abundance index of species in monthly strata and in annual strata. These three factors are revealed to be statistically significant and form the following hierarchy : first fishing power of ships, secondly monthly index and thirdly annual index of abundance of species. Engine power is revealed to be a minor explicative factor of differences between fishing powers of ships. Two other explicative... Tipo: Text Palavras-chave: Chalutiers du golfe du Lion; Indice d'abondance; Puissance de pêche; Modèle linéaire; Statistique de pêche; Lion's gulf trawlers; Abundance index; Fishing power; Linear model; Fishing statistic. Ano: 1999 URL: https://archimer.ifremer.fr/doc/1999/rapport-1574.pdf Application of Leslie's model on a population of common dolphins (Delphinus delphis): Sensitivity study 5 Fifas, Spyros; Goujon, Michel; Antoine, Loic. The rapid development of the albacore tuna (Thunnus alalunga) driftnet fishery in the Pay of Biscay (Atlantic ocean, France) has incited European management authorities to ask for a study of its ecological impact on populations of common dolphins and striped dolphins. A programme with onboard observers has been led during 1992 and 1993, and a sighting survey has allowed the evaluation of the abundances of fractions of populations in the studied area. For the population of common dolphins, the biological parameter estimation has allowed the building of a discrete age-structured model based on a Leslie matrix. Sensitivity studies have been conducted using four model parameters (age of first reproduction, interval between births, juvenile and adult survival... Tipo: Text Palavras-chave: Survival rate; Driftnet fishery; Common dolphin; Linear model; Taux de survie; Pêche au filet maillant dérivant; Modèle linéaire; Modèle linéaire. Ano: 1998 URL: http://archimer.ifremer.fr/doc/1998/publication-865.pdf Analyse des tendances des séries temporelles de la concentration en azote minéral dissous dans les trois principaux estuaires de la façade Manche-Atlantique 5 Gailhard, Isabelle. Estuaries are areas which, from their structure, their fonctioning, and their localisation, are subject to significant contribution of nutrients. One of the objectif of the RNO, the French network for coastal water quality monitoring, is to assess the levels and trends of nutrient concentrations in estuaries. A linear model was used in order to describe and to explain the total dissolved nitrogen concentration evolution in the three most important estuaries on the Chanel-Atlantic front (Seine, Loire and Gironde). As a first step, the selection of a reliable data set was performed. Then total dissolved nitrogen evolution schemes in estuary environment were graphically studied, and allowed a resonable choice of covariables. The salinity played a major role... Tipo: Text Palavras-chave: Nutriments; Estuaire; Loire; Seine; Gironde; Schéma de dilution; Modèle linéaire; Tendance; Nutrients; Estuary; Seine; Loire; Gironde; Dilution schema; Linear mode1; Trend. Ano: 2000 URL: http://archimer.ifremer.fr/doc/00079/19070/16665.pdf Registros recuperados: 3 Primeira ... 1 ... Última

Empresa Brasileira de Pesquisa Agropecuária - Embrapa Todos os direitos reservados, conforme Lei n° 9.610 Política de Privacidade Área restrita		Embrapa Parque Estação Biológica - PqEB s/n° Brasília, DF - Brasil - CEP 70770-901 Fone: (61) 3448-4433 - Fax: (61) 3448-4890 / 3448-4891 SAC: https://www.embrapa.br/fale-conosco