Data/hora: 11/06/2024 03:33:19

Provedor de dados: 	Ocean Docs: e-repository of  publications	
País: 	Belgium	
Título: 	Estudios de distribución de la anchoíta (Engraulis anchoita)en un área de extensión reducida. I. Densidades mínimas de muestreo para la estimación de algunos parámetros poblacionales

Studies on distribution of the anchovy (Engraulis anchoita)within a small area. I: Sampling effort required to estimate some population parameters	
Autores: 	Gru, D.L.; Hansen, J.E.	
Data: 	2007-11-05	
Ano: 	1986	
Palavras-chave: 	Length-weight relationships; Size distribution; Sex ratio; Age composition; Biological sampling; Age composition; Sex ratio; Http://aims.fao.org/aos/agrovoc/c_29093; Http://aims.fao.org/aos/agrovoc/c_7014.	
Resumo: 	Results of a research cruise carried out to estimate some biological parameters of anchovy (Engraulis anchoita), during the major spawning season, were analyzed in order to determine the minimum number of samples required to obtain unbiased values. Twelve samples of fishes were taken within an area of 607 nm². Size (total length)distributions, slope of the length-weight relationship, sex ratio and age population structure were considered. Results suggest that those parameters should be estimated by eight or more samples (corresponding to 76 nm² each).	
Tipo: 	Journal Contribution	
Idioma: 	Espanhol	
Identificador: 	Revista de Investigación y Desarrollo Pesquero, 5. p. 143-168

0325-6375

http://hdl.handle.net/1834/2029	
Editor: 	Mar del Plata: Instituto Nacional de Investigación y Desarrollo Pesquero (INIDEP)