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	Provedor de dados ArchiMer (10) IBSS Repository (4) BABT (4) BJM (4) Ecología austral (2) OceanDocs (1) Biological Sciences (1) Mais... Autor Balseiro,Esteban (2) Courties, C. (2) Delmas, Daniel (2) Gonzalez,Alessandra M. (2) Modenutti,Beatriz (2) Mostajir, Behzad (2) Paranhos,Rodolfo (2) Souza,María Sol (2) Vidussi, Francesca (2) Aigo,Juana (1) Alamo, B. (1) Albariño,Ricardo (1) Andrade,Luciana (1) Aniszewski,Erick (1) Araujo,Fábio Vieira (1) Araújo,Magnólia Fernandes Florêncio de (1) Artigas, Lf (1) Auguet, Jean-christophe (1) Azevedo,Júlio César Rodrigues de (1) Barbosa,Francisco Antônio R. (1) Mais... Palavra-chave Bacterioplankton (26) Phytoplankton (7) Бактериопланктон (4) Flow cytometry (3) Virioplankton (3) Bactérioplancton (2) Biomass (2) Diversity (2) Estuary (2) Eutrophication (2) Fish (2) Water pollution (2) Zooplankton (2) 2.05.00.00-9 dissolved organic carbon (1) Activity measurement (1) Activité exoprotéolytique (1) Analyse en flux continu (1) Apparent oxygen utilization (AOU) (1) Atherina (1) Attached bacteria (1) Mais... Tipo do documento Info:eu-repo/semantics/article (10) Text (10) Journal Contribution (5) Experimento (1) Ano 2021 (1) 2015 (1) 2013 (1) 2012 (2) 2011 (2) 2010 (4) 2009 (1) 2008 (1) 2006 (1) 2005 (4) 2003 (2) 2001 (1) 2000 (1) 1998 (3) 1994 (1) Mais... País France (10) Brazil (9) Ukraine (4) Argentina (2) Belgium (1) Idioma Inglês (22) Russo (3) Francês (1)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 26 Primeira ... 1 2 ... Última Bacteria and phytoplankton production rates in eight river stretches of the middle Rio Doce hidrographic basin (southeast Brazil) BABT Petrucio,Mauricio Mello; Barbosa,Francisco Antônio R.; Thomaz,Sidinei Magela. Measurements of bacterial secondary production (BSP), together with primary phytoplanktonic production (PPP) were conducted during dry and rainy seasons, in eight rivers of different orders submitted to different degrees of human impacts (different trophic degree). We aimed to determine and compare the importance of BSP and PPP in carbon fixation in these different lotic ecosystems. Our results showed that the Ipanema River was the most modified system by anthropogenic effluents inputs. These inputs altered the trophic degree and BSP rates of these streams and rivers. Tipo: Info:eu-repo/semantics/article Palavras-chave: Bacterioplankton; Carbon; Phytoplankton; Rivers; Trophic state. Ano: 2005 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132005000300019 Seasonal and spatial distribution of Bacterioplankton in a fluvial-lagunar system of a tropical region: density, biomass, cellular volume and morphologic variation BABT Araújo,Magnólia Fernandes Florêncio de; Godinho,Mirna Januária Leal. The temporal and spatial fluctuations of Bacterioplankton in a fluvial-lagunar system of a tropical region (Pitimbu River and Jiqui Lake, RN) were studied during the dry and the rainy periods. The bacterial abundance varied from 2.67 to 5.1 Cells10(7)mL-1 and did not show a typical temporal variation, presenting only small oscillations between the rainy and the dry periods. The bacterial biomass varied from 123 µgC L-1 to 269 µgC L-1 in the sampling sites and the average cellular volume varied from 0.12 to 0.54µm³, showing a predominance of the rods. The temperature showed a positive correlation with the cellular volume of the rods (R=0.55; p=0.02) and vibrio (R=0.53; p=0.03). Significant spatial differences of biomass (Mann Whitney: p=0.01) and cellular... Tipo: Info:eu-repo/semantics/article Palavras-chave: Bacterioplankton; Biomass; Morphologic variation; Tropical environment. Ano: 2008 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132008000100024 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 Heterotrophic bacteria abundances in Rodrigo de Freitas Lagoon (Rio de Janeiro, Brazil) BJM Gonzalez,Alessandra M.; Paranhos,Rodolfo; Lutterbach,Márcia S.. The Rodrigo de Freitas Lagoon (RJ, Brazil) is an important coastal ecosystem that has been submitted to an accelerated degradation process. The aim of this work was to determine the abundance and the spatial distribution of total heterotrophic (by flow cytometry) and cultivated bacteria ("pour plate" method on R2A agar). Another objective was to evaluate the lagoon's influence on water quality of Ipanema and Leblon beaches. Physical and chemical data were acquired too. Sub-superficial water samples were taken monthly, from December 1999 to October 2000. On lagoon, the cultivated bacteria abundance varied from 6.9x10(5) to 5.0x10(7) CFU.100 mL-1. On Ipanema and Leblon beaches, this parameter yielded 1.4x10(5) and 2.8x10(6) CFU.100 mL-1, respectively. Total... Tipo: Info:eu-repo/semantics/article Palavras-chave: Bacterioplankton; Flow cytometry; Eutrophication; Water pollution; Rodrigo de Freitas Lagoon. Ano: 2006 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822006000400005 Bacterioplankton features and its relations with doc characteristics and other limnological variables in Paraná river floodplain environments (PR/MS-Brazil) BJM Teixeira,Mariana Carolina; Santana,Natália Fernanda; Azevedo,Júlio César Rodrigues de; Pagioro,Thomaz Aurélio. Since the introduction of the Microbial Loop concept, many studies aimed to explain the role of bacterioplankton and dissolved organic carbon (DOC) in aquatic ecosystems. Paraná River floodplain system is a very complex environment where these subjects were little explored. The aim of this work was to characterize bacterial community in terms of density, biomass and biovolume in some water bodies of this floodplain and to verify its temporal variation and its relation with some limnological variables, including some indicators of DOC quality, obtained through Ultraviolet-visible (UV-VIS) and fluorescence spectroscopic analysis. Bacterial density, biomass and biovolume are similar to those from other freshwater environments and both density and biomass were... Tipo: Info:eu-repo/semantics/article Palavras-chave: DOC; Spectroscopy; Bacterioplankton; Floodplain. Ano: 2011 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822011000300008 Use of molecular approach to verify the influence of a eutrophic lagoon in the nearby ocean's bacterioplankton communities BJM Taketani,Rodrigo Gouvêa; Araujo,Fábio Vieira; Weerelt,Margaretha Denise Maria van; Sanchez-Nunez,Maria Leonisa; Aniszewski,Erick; Rosado,Alexandre Soares. Rodrigo de Freitas lagoon is an eutrophic aquatic environment. The waters from the lagoon are released to the sea at Ipanema and Leblon beaches, through Jardim de Alah channel. In this work, the influence of these waters on the bacterial communities of these beaches was investigated. Eleven sampling stations were set between the lagoon and the beaches, and the samples were analyzed by molecular and microbiological parameters. PCR-DGGE of the DNA extracted from the samples was performed using rpoB primers. Preliminary results indicate that all used approaches could reveal the influence of the lagoon on the beaches bacterial communities. Tipo: Info:eu-repo/semantics/article Palavras-chave: DGGE; Diversity; Bacterioplankton; Eutrophic lagoon. Ano: 2003 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822003000500017 Registros recuperados: 26 Primeira ... 1 2 ... Última

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