Ações Consultar Procurar Exibir estatísticas

Dúvidas e sugestões

Consultar: Artigo

Título: The catfish, Rhinelepis aspera (Teleostei; Loricariidae), in the Guaíra region of the Paraná River: an example of population estimation from catch-effort and tagging data when emigration and immigration are high
Autor(es): AGOSTINHO, A.A.; MATSUURA, Y.; OKADA, E.K.; NAKATANI, K.
Palavras-chave [PT]:

Rhinelepis aspera. Teleostei; Loricariidae. Guaíra, Região. Paraná, Rio. Brasil.

Rhinelepis aspera. Teleostei; Loricariidae. Guaíra region. Paraná River. Brazil. Population estimation. Tagging. Modelling.

Abstract: Using the Leslie model, an estimate was made of the stock of the loricariid catfish, Rhinelepis aspera, in the fishing grounds in the Guaíra region of the Paraná River. The method was based on catch-effort and mark-recapture data collected over a 90 day period in 1986. The estimated initial population size, based on catch-effort, was 734 806 catfish with a biomass of 580 297 kg. During the experiment 2.372 million cattish entered the fishing area and 1.892 million catfish emigrated from it. A Petersen type estimate, based on the recapture ratio of tagged fish, was 812 359 catfish at the beginning of the experiment.

AGOSTINHO, Angelo Antonio; MATSUURA, Yasunobu; OKADA, Edson Kiyoshi; NAKATANI, Keshiyu. The catfish, Rhinelepis aspera (Teleostei; Loricariidae), in the Guaira region of the Paraná River: an example of population estimation from catch-effort and tagging data when emigration and immigration are high. Fisheries Research, Amsterdam, v.23, no.3-4, p.333-344, 1995.

Responsavel: admin
Categoria: Aplicação
Formato: Documento PDF
Arquivo: Fisheries research.pdf
Tamanho: 793 Kb (812279 bytes)
Criado: 22-04-2008 17:43
Atualizado: 27-06-2008 11:39
Visitas: 1411
Downloads: 84

[Visualizar]  [Download]

Todo material disponível neste sistema é de propriedade e responsabilidade de seus autores.