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	Provedor de dados ArchiMer (3) Autor Andersen, V (1) Doray, Mathieu (1) Francois, F (1) Nival, Paul (1) Picheral, M (1) Remond, Barbara (1) Sardou, J (1) Scotto, M (1) Mais... Palavra-chave Micronecton (3) Micronekton (3) Acoustique (2) Acoustic (1) Advection diffusion models (1) Aggregative behaviour (1) Bay of Biscay (1) Comportement agrégatif (1) Couches diffusantes (1) DCP (1) Distribution verticale (1) Echosounding (1) FAD (1) Geostatistics (1) Golfe de Gascogne (1) Géostatistique (1) Hierarchy (1) Hiérarchie (1) Lesser Antilles (1) Macroplancton (1) Mais... Tipo do documento Text (3) Ano 2015 (1) 2006 (1) 1998 (1) País France (3) Idioma Francês (2) Inglês (1)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 3 Primeira ... 1 ... Última L'agrégation de thons de sub-surface au sein du système [DCP ancré - macronecton - environnement - pêche] en Martinique : étude hiérarchique par méthodes acoustiques, optiques et halieutiques ArchiMer Doray, Mathieu. Artificial Fish Aggregating Devices (FADs) are known to concentrate tropical tunas. This aggregative behaviour drastically increases the vulnerability of these species to fishing. Alternatively, FADs can be used as oceanic observatories to study the aggregative behaviour of large pelagic fish. We conducted sea surveys in Martinique (Lesser Antilles) to i) establish a typology of the pelagic fish aggregations found around moored FADs ii) study their relations with their biotic and abiotic environment and the local fishery. The mean biomass of large pelagic fish aggregations was also estimated to provide scientific inputs to achieve a sustainable management of the moored FAD fishery. The first part presents the background of the study. We introduce the... Tipo: Text Palavras-chave: Martinique; Lesser Antilles; Hierarchy; Advection diffusion models; Geostatistics; Micronekton; Tuna/environment relationships; Aggregative behaviour; Tuna; Underwater video; Echosounding; FAD; Martinique; Petites Antilles; Hiérarchie; Modèles d'advection diffusion; Géostatistique; Micronecton; Relation thon/environnement; Comportement agrégatif; Thon; Vidéo sous marine; Acoustique; DCP. Ano: 2006 URL: http://archimer.ifremer.fr/doc/2006/these-1735.pdf Les couches diffusantes du golfe de Gascogne : caractérisation acoustique, composition spécifique et distribution spatiale ArchiMer Remond, Barbara. Fisheries acoustic data are continuously collected during ecosystemic surveys to detect sh schools of commercial species and to quantify the sh abundance. These multifrequency data also contain information about smaller target aggregations producing ubiquitous Sound Scat- tering Layers (SSLs) on the echograms, with quite diverse shape, frequency responses and taxonomic compositions. In this work, we focus on the SSLs observed in spring in the Bay of Biscay during the PELGAS surveys. The objectives are: i) to classify SSLs, ii) to describe their spatial meso-scale distribution, iii) to investigate their relationships with oher exosystme components, and iv) to investigate the taxonomic composition of resonant SSLs at ne scale. A Multiple Correspondence... Tipo: Text Palavras-chave: Acoustique; Multifréquences; Couches diffusantes; Micronecton; Golfe de Gascogne; PELGAS; Acoustic; Multifrequency; Sound scattering layers; Micronekton; Bay of Biscay; PELGAS. Ano: 2015 URL: http://archimer.ifremer.fr/doc/00267/37784/35859.pdf Vertical distributions of macroplankton and micronekton in the Ligurian and Tyrrhenian Seas (northwestern Mediterranean) ArchiMer Andersen, V; Francois, F; Sardou, J; Picheral, M; Scotto, M; Nival, Paul. Vertical distributions and diel migrations at nineteen stations located in the Ligurian and Tyrrhenian Seas (northwestem Mediterranean) are described in detail and compared for the main species of micronekton and macroplankton. Sampling was performed in April 1994 in the 0-700 m water column in most cases, down to 350, 450 or 550 m for the coastal or relatively shallow sites. Most of the twenty species showed similar distributions throughout the sampled area, either non-diel-migrating distributions such as the euphausiid Stylocheiron longicorne and the fish Cyclothone braueri, or clear diel-migrant behaviour (e.g. the siphonophore Chelophyes appendiculata and the euphausiid Euphausia krohni). Four species, the siphonophore Lensia conoidea, the pteropods... Tipo: Text Palavras-chave: Distribution verticale; Macroplancton; Micronecton; Mer Méditerranée; Mer Tyrrhénienne; Vertical distribution; Macroplankton; Micronekton; Mediterranean Sea; Tyrrhenian Sea. Ano: 1998 URL: http://archimer.ifremer.fr/doc/00325/43650/43222.pdf Registros recuperados: 3 Primeira ... 1 ... Última

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