Revista de Investigación y Desarrollo Pesquero 1980 Nro 2
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Browsing Revista de Investigación y Desarrollo Pesquero 1980 Nro 2 by Subject "distribución geográfica"
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- ItemDistribución, áreas de concentración y estructura de la población del bacalao austral (Salilota australis, Gunther 1887) del Atlántico Sudoccidental(Mar del Plata: Instituto Nacional de Investigación y Desarrollo Pesquero (INIDEP), 1980) Perez Comas, J.A.The 'bacalao austral' is a typical fish from the cold water of the Southwest Atlantic and the Southeastern Pacific oceans, whose fishery has not yet developed. In this work, the structure of the concentration areas of summer and winter distribution and other biological items were analyzed, basing on data provening from R/V 'Walther Herwig' and R/V 'Shinkai Maru', which operated in these waters during 1978/79/. The trophic vertical migrations are common in this species.
- ItemLos recursos pesqueros demersales del Mar Argentino. Parte I. Evaluación de la biomasa (Standing stock) de la merluza común (Merluccius hubbsi) y de la merluza austral (Merluccius polylepis) en el área de su distribución estival(Mar del Plata: Instituto Nacional de Investigación y Desarrollo Pesquero (INIDEP), 1980) Simonazzi, M.A.; Otero, H.O.The present paper deals with the standing stock (Pw1) of the common hake (Merluccius hubbsi) and the austral hake (Merluccius polylepis), using the swept are method (Alverson, 1971) and with the Potential Yield (Cmax) using the Gulland (1970)method. The standing stock of the common hake was 2.642.715 tons. the highest concentrations of this specie were distributed over 12.348 nm² (13 o/o of the toal distribution area) with 1.178.843 tons. This area was located between 41° and 45° of south latitude and between the coast and 100 m of bottom depth in the Patagonian Shelf. The other 1.463.872 tons were distributed over a wide area of 82.727 nm².