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

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dc.bibliographicCitation.endpage75
dc.bibliographicCitation.stpage57
dc.bibliographicCitation.titleRevista de Investigación y Desarrollo Pesqueroes
dc.bibliographicCitation.volume6
dc.contributor.authorSverlij, S.B.
dc.contributor.authorEspinach Ros, A.
dc.coverage.spatialArgentina
dc.coverage.spatialRío de la Plata
dc.coverage.spatialRío Uruguay
dc.date.accessioned2014-10-03T18:38:30Z
dc.date.available2014-10-03T18:38:30Z
dc.date.issued1986
dc.description.abstractCatch 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.description.statusPublisheden
dc.identifier.citationRevista de Investigación y Desarrollo Pesquero, 6. p. 57-75
dc.identifier.issn0325-6375
dc.identifier.urihttps://marabierto.inidep.edu.ar/handle/inidep/235
dc.language.isoes
dc.publisherMar del Plata: Instituto Nacional de Investigación y Desarrollo Pesquero (INIDEP)
dc.subject.asfaMigrationsen
dc.subject.asfaCatch/efforten
dc.subject.asfaSex ratioen
dc.subject.asfaSize distributionen
dc.subject.asfaScale readingen
dc.subject.asfaGrowth curvesen
dc.subject.asfaReproductionen
dc.subject.asfaStomach contenten
dc.subject.otherrelación de sexos
dc.subject.otherreproducción
dc.subject.otherdistribución por tamaño
dc.subject.othercurvas de crecimiento
dc.subject.othercontenido estomacal
dc.subject.othercaptura/esfuerzo
dc.subject.othermigraciones
dc.subject.otherlectura de escamas
dc.titleEl dorado, Salminus maxillosus (Pisces, Characiformes) en el Río de la Plata y Río Uruguay inferior
dc.title.alternativeThe dorado, Salminus maxillosus (Pisces, Characiformes), from the Río de la Plata and the lower reaches of the Uruguay river
dc.typeJournal Contribution
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Revista de Investigación y Desarrollo Pesquero 1986 Nro 6