Estructura de la comunidad bentónica y ecología trófica de Scianeidae (Pisces: Osteichthyes) en el estuario del Río de la Plata
MetadataShow full item record
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 sp., Alitta succinea, Mactra isabelleana, Nucula puelcha and Onuphis setosa were usually found at the study area. Regarding environmental variables, no clear trend was found between benthic diversity and salinity, which was re.....