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Registros recuperados: 3
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Ecología trófica de la pescadilla de red, Cynoscion guatucupa (Pisces: Sciaenidae), en aguas del Atlántico sudoccidental. 20
García, S..
Trophic spectrum of Cynoscion guatucupa (striped weakfish) was analyzed through stomach content of individuals coming from two areas of Buenos Aires coast (38° 30'S - 41° 30'S): Argentine - Uruguayan Fishing Common Zone (AUFCZ) and El Rincón area (Argentine Sea, SW Atlantic). The stomach contents of 3323 individual captured in research cruises carried out during 2004 and 2005 was determined. In the diet 39 prey items were identified corresponding to 4 Phyla. Trophic spectrum was determined with Index of Relative Importance (IRI), where fishes were the principal prey (72,53 percentage IRI), crustaceans were secondary prey (27,44 percentage IRI) and with minor values polychaetes and mollusk (0,2 percentageIRI) were found. Pelagic fish was the predominant...
Tipo: Theses and Dissertations Palavras-chave: Feeding behaviour; Trophic levels; Stomach content; Food consumption; Predation; Food organisms; Shared stocks; Feeding behaviour; Trophic levels; Food consumption; Predation; Http://aims.fao.org/aos/agrovoc/c_10778; Http://aims.fao.org/aos/agrovoc/c_7969; Http://aims.fao.org/aos/agrovoc/c_3016; Http://aims.fao.org/aos/agrovoc/c_6162.
Ano: 2007 URL: http://hdl.handle.net/1834/3583
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Estructura de la comunidad bentónica y ecología trófica de Scianeidae (Pisces: Osteichthyes) en el estuario del Río de la Plata 20
Giberto, D.A..
Benthic communities of the Río de la Plata estuary and their trophic link with Micropogonias furnieri, Paralonchurus brasiliensis, Menticirrhus americanus, Cynoscion guatucupa, Macrodon ancylodon and Umbrina canosai, six species of the Sciaenidae Family, were studied. Benthic composition was characterized using 122 sampling sites between 1999 and 2005. Multivariate and univariate statistical tools were used to analyze diversity, abundance and biomass patterns. A total of 370 taxa were found at the study area. Four areas were established using benthic composition: Inner Río de la Plata (RdP), middle RdP, outer RdP and Marine zone. Higher abundance (9,877 ind/m2) and biomass (1,456.8 g/m2) values were found at middle RdP. Nephtys fluviatilis, Heteromastus...
Tipo: Theses and Dissertations Palavras-chave: Benthos; Estuarine organisms; Brackishwater environment; Feeding behaviour; Food organisms; Trophic levels; Stomach content; Trophic levels; Benthos; Feeding behaviour; Brackishwater environment; Http://aims.fao.org/aos/agrovoc/c_7969; Http://aims.fao.org/aos/agrovoc/c_878; Http://aims.fao.org/aos/agrovoc/c_10778; Http://aims.fao.org/aos/agrovoc/c_1050.
Ano: 2008 URL: http://hdl.handle.net/1834/2952
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Índice microbiológico para evaluar el estado trófico de las aguas de la plataforma SW cubana 20
Miravet Regalado, M.E.; Lugioyo Gallardo, M.; Rodríguez Acosta, F..
There are different microbiological indexes to evaluate the trophic state of inland and coastal waters based on the direct relation between the concentration of organic matter and the heterotrophic bacteria. These indexes are valuable; however, as they were determined starting from data collected in tempered latitudes, if they are applied to tropical regions where heterotrophic bacteria concentrations are usually higher, the results can be underestimated. The objective of the present work is to elaborate a quantitative index to evaluate the trophic state from microbiological data collected in waters of the SW Cuban shelf. For this purpose, values of concentrations of heterotrophic (HB) and sulfate-reducing (SR) bacteria obtained in waters of SW Cuban shelf...
Tipo: Journal Contribution Palavras-chave: Trophic levels; Shelf geology; Trophic levels; Http://aims.fao.org/aos/agrovoc/c_7969.
Ano: 2009 URL: http://hdl.handle.net/1834/3496
Registros recuperados: 3
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