Revista de Investigación y Desarrollo Pesquero 1986 Nro 6

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    Flota de altura : breve reseña de la evolución histórica y operatividad durante el período 1981/1982
    (Mar del Plata: Instituto Nacional de Investigación y Desarrollo Pesquero (INIDEP), 1986) Bertolotti, María Isabel; Cabut, D.A.
    This work was carried out in order to analize the ship incorporation history to the Argentine fishery fleet and the ship building policies in Argentine shipyards and ship importations. From fresher trawler fleet and freezer trawler fleet analysis we estimated optimun catch, possible catch, and natural stock for each fleet. A modern fresher fleet might reach the present value of the optimun catch, but it would not satisfy the total inshore fish factories demand unless equitable ratio between the optimun catch capacities of the fresher trawler fleet and the freezer trawler fleet be established.
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    Resultados de la prospección pesquera en el embalse de Salto Grande (Febrero 1980-Febrero 1981)
    (Mar del Plata: Instituto Nacional de Investigación y Desarrollo Pesquero (INIDEP), 1986) Prenski, L.B.; Baigún, Claudio R.M.
    The present study refers to an exploratory fishing survey and appraisal in Salto Grande Reservoirs, during the first year postimpoundment, Samples were taken bimontly at six sampling stations located in different regions of the lake, using a standard gang of gill nets. The fishing effort in each station was taken as one night and the results are expressed in terms of catch per unit effort (CPUE). A survey of the species present vulnerable to the gears used, was made for the explotable species taking into account their distribution according to the mesh size and the proportion of fish at comercial size.
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    Consideraciones 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, Mario 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.
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    El aceite de pescado argentino y sus posibilidades de utilización en procesos industriales. Parte II. Obtención de derivados sulfatados para la nutrición de cueros
    (Mar del Plata: Instituto Nacional de Investigación y Desarrollo Pesquero (INIDEP), 1986) Carrizo, J.C.R.; Cuello, O.M.
    Twelve sulfated oils were prepared from Argentine's raw fish oils, and three more from samples previously bleached. The samples were taken montly during a year at a factory in the Mar del Plata (Argentine) zone. Each oil and its sulfated derivative was analyzed in its physico-chemical properties. The hydrophilic and hydrophobic fractions were separated and the fatty acids composition of the latter were determined. From the results obtained, it is possible to conclude that the Argentine's fish oils sulfated will be able to be used in fat-liquoring of leather.
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    Relación entre la longitud mínima de cable de arrastre a filar y la profundidad de pesca en función de las variables más representativas
    (Mar del Plata: Instituto Nacional de Investigación y Desarrollo Pesquero (INIDEP), 1986) Ercoli, R.
    A practical and simple technique which gives an aproximate solution to the determination of minimum length of warp payed out durin a demersal or botto,m trawl operation es proposed. The method takes into account such variables as: weight in the water of warp payed out, of the otter board an the maximum trawling speed determined for each vessel in particular. The FRS "Dr. E.L. Holmberg" of the National Institute for Scientific Research and Development (INIDEP, Mar del Plata) was used to test the method.