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	Provedor de dados BJM (2) OceanDocs (1) Autor Coelho-Souza,Sérgio A. (1) Coutinho,Ricardo (1) Ebecken,N.F.F. (1) Figueiredo,A.R. (1) Granato,A. (1) Guimarães,Jean R.D. (1) Kreiner, Anja (1) Moroff, Nadine E. (1) Pereira,G.C. (1) Pereira,Gilberto C. (1) Stenevik, Erling K. (1) Yemane, Dawit (1) Mais... Palavra-chave Upwelling system (3) Bacterioplankton (1) Coastal upwelling (1) Coastal waters (1) Extractive reserve (1) Heterotrophic activity (1) Impacted area (1) Marine virus (1) Seasonal changes (1) Spawning (1) Temperature (1) Trophic gradients (1) Mais... Tipo do documento Info:eu-repo/semantics/article (2) Journal Contribution (1) Ano 2013 (1) 2011 (1) 2009 (1) País Brazil (2) Belgium (1) Idioma Inglês (3)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 3 Primeira ... 1 ... Última Virioplankton Abundance in Trophic Gradients of an Upwelling Field BJM Pereira,G.C.; Granato,A.; Figueiredo,A.R.; Ebecken,N.F.F.. This work correlates time series of biological and physical variables to the marine viruses across trophic gradients within Arraial do Cabo upwelling system, Southeast of Brazil. The objective is to investigate the major controlling factors of virioplankton dynamics among different water masses. It was used an in situ and ex situ flow cytometry for accessing the plankton community. Viruses were highly correlated to bacteria and phytoplankton, but although the lack of direct correlation with physicals, upwelling turned out to be the main contributing factor to the highest values of viral abundance and virus:bacterial ratio. Our data suggest that the lowest temperature of upwelled South Atlantic Central Waters would help to maintain a high viral abundance... Tipo: Info:eu-repo/semantics/article Palavras-chave: Marine virus; Coastal waters; Trophic gradients; Upwelling system. Ano: 2009 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822009000400017 Yearly variation of bacterial production in the Arraial do Cabo protection area (Cabo Frio upwelling region): an evidence of anthropogenic pressure BJM Coelho-Souza,Sérgio A.; Pereira,Gilberto C.; Coutinho,Ricardo; Guimarães,Jean R.D.. Arraial do Cabo is where upwelling occurs more intensively on the Brazilian coast. Although it is a protection area it suffers anthropogenic pressure such as harbor activities and sporadic sewage emissions. Short-time studies showed a high variability of bacterial production (BP) in this region but none of them evaluated BP during long periods in a large spatial scale including stations under different natural (upwelling and cold fronts) and anthropogenic pressures. During 2006, we sampled surface waters 10 times (5 in upwelling and 5 in subsidence periods) in 8 stations and we measured BP, temperature as well as the concentrations of inorganic nutrients, pigments and particulate organic matter (POM). BP was up to 400 times higher when sewage emissions... Tipo: Info:eu-repo/semantics/article Palavras-chave: Bacterioplankton; Heterotrophic activity; Impacted area; Extractive reserve; Upwelling system. Ano: 2013 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822013000400046 The selection of spawning location of sardine (Sardinops sagax) in the northern Benguela after changes in stock structure and environmental conditions OceanDocs Kreiner, Anja; Yemane, Dawit; Stenevik, Erling K.; Moroff, Nadine E.. Most reports on the distribution of spawning areas of sardine (Sardinops sagax) in the northern Benguela originate from the 1970s and 1980s. The northern Benguela system was in a high upwelling regime during those decades. Since the early 1990s upwelling favourable winds have decreased and a trend of increasing sea surface temperature (SST) has been observed. Changes in the structure of sardine stock in the northern Benguela have been observed and it has been suggested that a reduced biomass and changes in stock structure has led to decreased spawning in the favourable southern locations, thus preventing a recovery of the sardine stock. The present paper on the contrary shows that there has been a shift in spawning location from the less favourable... Tipo: Journal Contribution Palavras-chave: Coastal upwelling; Upwelling system; Temperature; Spawning; Seasonal changes. Ano: 2011 URL: http://hdl.handle.net/1834/4625 Registros recuperados: 3 Primeira ... 1 ... Última

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