Data/hora: 06/06/2024 11:08:48

Provedor de dados: | 20
País: | Belgium

Título:

Una aplicación de los estudios ambientales para orientar la pesqueria de la caballa Scomber japonicus en Mar del Plata

Application of environmental studies to lead mackerel Scomber japonicus fisheries in Mar del Plata

Autores: | Perrotta, R.G.; Pertierra, J.P.; Viñas, M.D.; Macchi, G.J.; Tringali, L.S.
Data: | 2008-06-11
Ano: | 1998
Palavras-chave: | Mackerel fisheries; Biomass; Catch/effort; Environmental conditions; Economic models; Commercial fishing; Biomass; Environmental conditions; Http://aims.fao.org/aos/agrovoc/c_926; Http://aims.fao.org/aos/agrovoc/c_32980.
Resumo: | Both mackerel mean biomass and mean fishing effort in Buenos Aires (Argentina) shelf during the period 1990-91/1994-95 were estimated. Those values were 85,792 t and 42,051 minutes, respectively. However, the best economic profit from the fishery (about $15,390,036)($1=U$S1) was estimated to take place at 28,000 minutes. It was observed a waste in fishing effort of the commercial fleet related with sea surface temperatures of 19°C or more. Moreover, adult mackerel find better trophic conditions on the continental shelf (depth 50m), while larvae originated from massive spawning in late November-early December, i.e., during the main fishing season, find their optimum at lower depths. Mackerel shoals enter and leave fishing grounds in a counterclockwise way pushed by waters from the median shelf. A fishing strategy according with sea surface temperature is proposed to lead the commercial fleet.
Tipo: | Journal Contribution
Idioma: | Espanhol

Identificador:

INIDEP informe técnico, 23. p. 1-24

0327-9642

http://hdl.handle.net/1834/2465

Editor: | Mar del Plata: Instituto Nacional de Investigación y Desarrollo Pesquero