El dorado, Salminus maxillosus (Pisces, Characiformes) en el Río de la Plata y Río Uruguay inferior

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dc.contributor.author Sverlij, S.B.
dc.contributor.author Espinach Ros, A.
dc.coverage.spatial Argentina
dc.coverage.spatial Río de la Plata
dc.coverage.spatial Río Uruguay
dc.date.accessioned 2014-10-03T18:38:30Z
dc.date.available 2014-10-03T18:38:30Z
dc.date.issued 1986
dc.identifier.citation Revista de Investigación y Desarrollo Pesquero, 6. p. 57-75
dc.identifier.issn 0325-6375
dc.identifier.uri http://10.0.64.26/handle/inidep/235
dc.description.abstract Catch per unit effort (CPUE), lenght distribution, age, growth, reproduction, migrations and feeding were studies through samples collected with longlines and a gang of gill-nets of several mesh size. CPUE data showed a progressive decrease of the relative abundance in the Río de la Plata, during the study period. Age was studied from scales. Back-calculations of growth revealed the pressence of Lee's phenomenon. Means lenghts at age were greater in females. No significant difference was found in lenght-weight regressions from both sexes and sampling areas. Only young individuals from 1 to 6 years were caught. None of the fish studied had ripening gonads. Extensive migrations were recorded both in the Paraná and Uruguay rivers. Stomach contents analysis confirmed the ichthyoplagous habits of the species.
dc.language.iso es
dc.publisher Mar del Plata: Instituto Nacional de Investigación y Desarrollo Pesquero (INIDEP)
dc.subject.other relación de sexos
dc.subject.other reproducción
dc.subject.other distribución por tamaño
dc.subject.other curvas de crecimiento
dc.subject.other contenido estomacal
dc.subject.other captura/esfuerzo
dc.subject.other migraciones
dc.subject.other lectura de escamas
dc.title El dorado, Salminus maxillosus (Pisces, Characiformes) en el Río de la Plata y Río Uruguay inferior
dc.title.alternative The dorado, Salminus maxillosus (Pisces, Characiformes), from the Río de la Plata and the lower reaches of the Uruguay river
dc.type Journal Contribution
dc.subject.asfa Migrations en
dc.subject.asfa Catch/effort en
dc.subject.asfa Sex ratio en
dc.subject.asfa Size distribution en
dc.subject.asfa Scale reading en
dc.subject.asfa Growth curves en
dc.subject.asfa Reproduction en
dc.subject.asfa Stomach content en
dc.description.status Published en
dc.bibliographicCitation.endpage 75
dc.bibliographicCitation.stpage 57
dc.bibliographicCitation.title Revista de Investigación y Desarrollo Pesquero es
dc.bibliographicCitation.volume 6


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