Revista de Investigación y Desarrollo Pesquero 1986 Nro 6
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Browsing Revista de Investigación y Desarrollo Pesquero 1986 Nro 6 by Subject "Buenos Aires"
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- ItemConsideraciones sobre la explotación del mejillón (Mytilus platensis) en la costa bonaerense. Resultados de la campaña de prospección del "Banco Faro Querandí" (junio 1981)(Mar del Plata: Instituto Nacional de Investigación y Desarrollo Pesquero (INIDEP), 1986) Lasta, M.L.; Parma, A.M.; Pascual, M.S.; Zampatti, E.A.The fishing of the mussel (Mytilus edulis platensis) off the Buenos Aires coast was alternatively carried out over two main grounds: "Faro Querandí" and "Quequén". The fluctuations of fishing periods on these grounds must have been determined by economic considerations. An abandoned bed may be considere, for practical purposes, depleted.The understanding of the dynamics of this spatially distributed stock could enable us to link more closely the biological cycles with those of the fishing activity. Rotative fishing is suggested as a managment strategy for this fishery.
- ItemEstudio de las concentraciones de los ácidos nucleicos (RNA, DNA) en músculo blanco e hígado de la lisa (Mugil brasiliensis) a lo largo de sus períodos de reposo y maduración gonadal(Mar del Plata: Instituto Nacional de Investigación y Desarrollo Pesquero (INIDEP), 1986) Duhalde, G.B.; Introzzi, A.E.The concentration of nucleic acids (RNA and DNA) was reviewed, as well as the RNA/DNA coefficient, in white muscle and liver of Mugil brasiliensis adult females caught at the Mar Chiquita Coastal Laggon (37°30'S, 57°20'W) between September and March. Countrary to what observations in other species (Lepomis macrochirus and Clarias batrachus)have shown, i.e., a decrease in muscle RNA/DNA during gonadal maturation, Mugil brasiliensis would seem to maintain a proteic balance in equilibrium during the said period. No significant correlation was found between IGS and the RNA, DNA and RNA/DNA muscular variables.