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	Provedor de dados ArchiMer (2) Autor Berger, Laurent (1) Leblond, Isabelle (1) Lelièvre, Yann (1) Scalabrin, Carla (1) Palavra-chave Seafloor observatory (2) Acoustic backscattering (1) Bubbles (1) Diversity (1) Diversité (1) Dynamique temporelle (1) Fisheries echosounders (1) Food webs (1) Forward and inverse modeling (1) Gas emissions (1) Hydrothermal ecology (1) Imagerie (1) Imagery (1) Observatoire fond de mer (1) Réseaux trophiques (1) Temporal dynamics (1) Water column acoustics (1) Water tank experiments (1) Écologie hydrothermale (1) Mais... Tipo do documento Text (2) Ano 2018 (1) 2014 (1) País France (2) Idioma Francês (1) Inglês (1)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 2 Primeira ... 1 ... Última Structure et dynamique temporelle des communautés hydrothermales inféodées à la dorsale Juan de Fuca : utilisation d'une approche observatoire fond de mer ArchiMer Lelièvre, Yann. Hydrothermal vents are distributed along mid-ocean ridges and back-arc basins. These ecosystems harbour a specialized fauna supported by a local chemosynthetic microbial production, made possible through the oxidation of reduced elements present in the hydrothermal fluid. While the relationships between faunal assemblages and habitats have been relatively well described around the globe, our knowledge on the temporal dynamics of these environments is still limited, particularly at time scale relevant to organisms (from few minutes to several years). Based on hydrothermal vent communities occurring on the Juan de Fuca Ridge, located in the northeast Pacific Ocean, this thesis aims at understanding the functioning and temporal dynamics of macrofaunal... Tipo: Text Palavras-chave: Écologie hydrothermale; Observatoire fond de mer; Diversité; Réseaux trophiques; Dynamique temporelle; Imagerie; Temporal dynamics; Imagery; Food webs; Hydrothermal ecology; Seafloor observatory; Diversity. Ano: 2018 URL: https://archimer.ifremer.fr/doc/00497/60907/64256.pdf Acoustic monitoring of gas emissions from the seafloor. Part I: quantifying the volumetric flow of bubbles ArchiMer Leblond, Isabelle; Scalabrin, Carla; Berger, Laurent. Three decades of continuous ocean exploration have led us to identify subsurface fluid related processes as a key phenomenon in marine earth science research. The number of seep areas located on the seafloor has been constantly increasing with the use of multi-scale imagery techniques. Due to recent advances in transducer technology and computer processing, multibeam echosounders are now commonly used to detect submarine gas seeps escaping from the seafloor into the water column. A growing number of en-route surveys shows that sites of gas emissions escaping from the seafloor are much more numerous than previously thought. Estimating the temporal variability of the gas flow rate and volumes escaping from the seafloor has thus become a challenge of relevant... Tipo: Text Palavras-chave: Seafloor observatory; Water column acoustics; Forward and inverse modeling; Fisheries echosounders; Acoustic backscattering; Gas emissions; Bubbles; Water tank experiments. Ano: 2014 URL: http://archimer.ifremer.fr/doc/00192/30336/29094.pdf Registros recuperados: 2 Primeira ... 1 ... Última

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