| Registro completo |
| Provedor de dados: |
OceanDocs
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| País: |
Belgium
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| 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
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| Autores: |
Gru, D.L.
Hansen, J.E.
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| Data: |
2007-11-05
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| Ano: |
1986
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| 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
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| 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).
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| Tipo: |
Journal Contribution
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| Idioma: |
Espanhol
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| Identificador: |
Revista de Investigación y Desarrollo Pesquero, 5. p. 143-168
0325-6375
http://hdl.handle.net/1834/2029
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| Editor: |
Mar del Plata: Instituto Nacional de Investigación y Desarrollo Pesquero (INIDEP)
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