Data/hora: 16/06/2024 15:28:17

Provedor de dados: | 20
País: | Belgium

Título:

Identificación de las variables que afectan a la fracción desovante de la población bonaerense de anchoíta (Engraulis anchoita) mediante el uso de modelos lineales generalizados

Identification of the variables that affect the spawning fraction of Argentine anchovy (Engraulis anchoita) Northern stock using generalized linear models

Autores: | Leonarduzzi, E.; Di Marco, E.J.; Pájaro, M.
Data: | 2014-06-10
Ano: | 2013
Palavras-chave: | Pelagic fish; Reproduction; Biomass; Spawning; Mathematical models.
Resumo: | The daily spawning females fraction (S) of Argentine anchovy (Engraulis anchoita) in relation to the year, length, proportion of females, temperature and salinity variables was studied using generalized linear models. Samples were collected during eleven research surveys carried out in the main spawning seasons and areas during 1993-2008 (Southwest Atlantic Ocean, Argentine Sea). The aim of this work was to identify the factors that affect the spawning activity. No temporary differences were observed and an S 0.12 average value was estimated. The poor explanatory percentage of the models analyzed did not allow to clearly detect the variables that could affect S. Length and temperature were the only variables that related positively, which suggests that Argentine anchovy spawning activity might be related to the population females size composition that would be affected by the environment.
Tipo: | Journal Contribution
Idioma: | Espanhol

Identificador:

Revista de Investigación y Desarrollo Pesquero, 23, p. 23-34

0325-6375

http://hdl.handle.net/1834/5492

Fonte: | http://creativecommons.org/licenses/by-nc/3.0/