Data/hora: 08/06/2024 09:29:10

Provedor de dados: | 20
País: | Belgium

Título:

Diferencias entre parámetros vitales de las poblaciones bonaerense y patagónica de anchoíta argentina.

Differences between some population parameters from Northern and Southern Argentine Anchovy.

Autores: | Hansen, J.E.
Data: | 2007-10-16
Ano: | 1994
Palavras-chave: | Length-weight relationships; Growth; Mortality; Size distribution; Growth; Mortality; Http://aims.fao.org/aos/agrovoc/c_3394; Http://aims.fao.org/aos/agrovoc/c_4945.
Resumo: | Two pelagic cruises were carried out by R/V"Cap.Oca Balda" in the spring of 1988 and the following summer. Anchovy samples were taken in order to increase the knowledge on the differences between two main stocks of the species, inhabiting the Argentine Sea from 35°S southwards, with distributional boundary situated at about 41°S. Length-weight relationships were statistically different among populations. Weight-at-length values calculated for the summer cruise were higher tha sprin estimates, and they were also higher within Northern individuals. The differences were not statistically significant between stocks, but there are reasons to believe that if ages 1 and 6 of both stocks had been represented those differences would have been increased. Mortality rates could not be accurately estimated.
Tipo: | Journal Contribution
Idioma: | Espanhol

Identificador:

Revista de Investigación y Desarrollo Pesquero, 9. p. 11-24

0325-6375

http://hdl.handle.net/1834/1933

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