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	Provedor de dados OceanDocs (1) BJB (1) Autor COUTO,E. C. G. (1) SOUZA,M. F. L. de (1) Schejter, L. (1) Palavra-chave Short-term changes (2) Community composition (1) Epibionts (1) Estuary (1) Fishing grounds (1) Long-term changes (1) Microphytobenthos (1) Mineralization (1) Multivariate analysis (1) Primary production (1) Scallop fisheries (1) Species diversity (1) Zoobenthos (1) Mais... Tipo do documento Info:eu-repo/semantics/article (1) Theses and Dissertations (1) Ano 2005 (1) 1999 (1) País Belgium (1) Brazil (1) Idioma Espanhol (1) Inglês (1)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 2 Primeira ... 1 ... Última Asociación bentónicas en bancos de vieira patagónica (Zygochlamys patagonica) en el Mar Argentino OceanDocs Schejter, L.. The different aspects of the benthic assemblages at the Patagonian scallop beds in the Argentine Sea (SW Atlantic) were studied. The Patagonian scallop (Zygochlamys patagonica) is a commercial species distributed in the Magellanic Biogeographic Province, and has been commercially exploited since 1996. Temporal and spatial studies were performed in the community composition between 39°50'S and 36°15'S, and between 1998 and 2003, concluding that the species association was persistent after more than 7 years of trawling activities. Species composition in an exclusion area (closed to scallop fishing) did not differ from surrounding fished areas during the studied period, showing only a higher scallop biomass. ABC curves showed a pattern coincident with a non... Tipo: Theses and Dissertations Palavras-chave: Zoobenthos; Community composition; Long-term changes; Short-term changes; Species diversity; Fishing grounds; Epibionts; Scallop fisheries; Multivariate analysis; Multivariate analysis; Zoobenthos; Species diversity; Fishing grounds. Ano: 2005 URL: http://hdl.handle.net/1834/3917 Short-term changes and longitudinal distribution of carbon metabolism in the Piauí River estuary (Sergipe, Brazil) BJB SOUZA,M. F. L. de; COUTO,E. C. G.. Net pelagic metabolism (NPM) and net ecosystem metabolism (NEM) were assessed by sigmaCO2 changes in three sampling stations along Piauí River estuary. At the upper estuary station, sampling was carried out over 48 h. Samples exhibited high DIN:DIP ratios. Chlorophyll-a ranged from 0.2 to 2.5 mug.l-1, being higher at the upper estuarine station than marine ones. Net pelagic metabolic rates ranged from -13.2 to 61.2 mgC.m7-2.d-1. Presence of mucilaginous algal material can explain the net mineralization. In the photic period, NPM ranged from-0.05 to 3.04 mgC.m-2h-1. NEM ranged from -7.77 to 6.65 mgC.m-2.d-1. Bottom ressuspension due to microphytobenthic flotation and a high turbidity plume inside de estuary reflected in negative metabolic rates... Tipo: Info:eu-repo/semantics/article Palavras-chave: Estuary; Short-term changes; Primary production; Mineralization; Microphytobenthos. Ano: 1999 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0034-71081999000200003 Registros recuperados: 2 Primeira ... 1 ... Última

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