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	Provedor de dados Gayana (4) Autor Quiñones,Renato A (4) González,Rodrigo R (2) Gutiérrez,Marcelo H (2) Bazzino,Gastón (1) Chiang,Oscar E (1) Gerdhard,Jessen (1) Levipan,Héctor (1) Middelboe,Mathias (1) Pantoja,Silvio (1) Mais... Palavra-chave Anaerobic metabolism (1) Calamar Illex argentinus (1) Central south Chile (1) Composición de la dieta (1) Fungi (1) Humboldt Current System (1) Humboldt Current system (1) Intensidad de alimentación (1) Oxygen minimum zone (1) Prokaryotes (1) Respiration (1) Upwelling ecosystem (1) Virus-like particles (1) Viruses (1) Zona Común de Pesca Argentino-Uruguaya (1) Mais... Tipo do documento Journal article (4) Ano 2010 (1) 2007 (1) 2006 (1) 2001 (1) País Chile (4) Idioma Espanhol (2) Inglês (2)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 4 Primeira ... 1 ... Última ALIMENTACION DEL CALAMAR ILLEX ARGENTINUS (CEPHALOPODA, OMMASTREPHIDAE) EN LA ZONA COMUN DE PESCA ARGENTINO-URUGUAYA Gayana Bazzino,Gastón; Quiñones,Renato A. En el presente trabajo, se analiza la variabilidad entre sexos, clases de tamaño, y grados de madurez sexual en la composición de la dieta y en la intensidad de alimentación del calamar Illex argentinus en la Zona Común de Pesca Argentino-Uruguaya (ZCPAU). Durante septiembre y octubre de 1998 se examinó, a nivel macroscópico, el contenido estomacal de 6369 ejemplares de Illex argentinus a bordo de tres buques pesqueros calamareros (poteros), determinándose el ítem presa dominante en cada estómago analizado (dieta basada en ítem presa dominante, DBIPD). Los resultados obtenidos en este estudio conducen a postular que: (i) la composición de la dieta del calamar en la ZCPAU estuvo dominada por crustáceos, (ii) los bajos niveles de canibalismo sugieren una... Tipo: Journal article Palavras-chave: Calamar Illex argentinus; Composición de la dieta; Intensidad de alimentación; Zona Común de Pesca Argentino-Uruguaya. Ano: 2001 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-65382001000200010 PRIMER REGISTRO DE ABUNDANCIA VIRAL EN BAHIA COLIUMO Y PLATAFORMA CONTINENTAL FRENTE A CHILE CENTRAL Gayana Chiang,Oscar E; Middelboe,Mathias; Quiñones,Renato A. The abundance of virus like particles (VLP) was determined for the first time in the water column and sediment of Coliumo Bay and on a station on the continental shelf off central Chile. The VLP decreases with depth in the water column with a surface maximum of 4.1 x 10(7) VLP mL-1 and 5.87 x 10(7) VLP mL-1 on the shelf and Coliumo Bay, respectively. In the sediments the VLP ranged between 4.28 x 10(8) VLP mL (Coliumo Bay) and 1.01 x 10(8) VLP mL (shelf). The abundance of VLP is higher at the Bay both in the water column and in the sediment. Tipo: Journal article Palavras-chave: Viruses; Virus-like particles; Prokaryotes; Humboldt Current System. Ano: 2007 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-65382007000100014 Living in the oxygen minimum zone: A metabolic perspective Gayana Quiñones,Renato A; González,Rodrigo R; Levipan,Héctor; Gerdhard,Jessen; Gutiérrez,Marcelo H. Respiration is a key variable to understand the flux of energy and matter in any ecosystem. In fact, ecosystem respiration is a critical component of the carbon cycle and might be important in regulating biosphere response to global climate change. Respiration is the basic process used by the biota to yield energy from the degradation of organic matter for their survival needs, its measurement provides an estimate of the minimum energy needed by the organism. Accordingly, the total respiration of an aquatic community can be equated to the minimum energy needed to maintain its organized living structure and function. Despite its importance, community respiration has been a process scarcely studied in the ocean and only during the 90's has become more... Tipo: Journal article Palavras-chave: Anaerobic metabolism; Respiration; Oxygen minimum zone; Humboldt Current system. Ano: 2006 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-65382006000300014 First record of flamentous fungi in the coastal upwelling ecosystem off central Chile Gayana Gutiérrez,Marcelo H; Pantoja,Silvio; Quiñones,Renato A; González,Rodrigo R. We report for the frst time the presence of flamentous fungi in the water column and sediment in the coastal upwelling ecosystem off central Chile, using molecular tools and epifuorescence microscopy. Positive amplifcations of SSU 18s rDNA with specifc fungal primers were obtained for surface waters and sediments of this coastal ecosystem. Molecular richness obtained from denaturing gradient gel electrophoresis showed a higher number of fungal genotypes in nearshore than offshore sites and in summer than winter. Fungal structures identifed by epifuorescence microscopy in the water column were present as individual flaments or as aggregates of hyphae. We show for the frst time vertical water column profles of fungal biomass in the marine ecosystem. Fungal... Tipo: Journal article Palavras-chave: Fungi; Upwelling ecosystem; Central south Chile. Ano: 2010 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-65382010000100010 Registros recuperados: 4 Primeira ... 1 ... Última

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