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	Provedor de dados OceanDocs (2) Autor Adetayo, J.A. (2) Ajayi, T.O. (1) Palavra-chave Fishery development (1) Fishery management (1) Http://aims.fao.org/aos/agrovoc/c_24026 (1) Shrimp fisheries (1) Shrimp fishery (1) Tipo do documento Report (2) Ano 1982 (2) País Belgium (2) Idioma Inglês (2)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 2 Primeira ... 1 ... Última On the fish catch and discard of the shrimp fishery of Nigeria OceanDocs Ajayi, T.O.; Adetayo, J.A.. Commercial landings and effort data over the period 1970-1980 as well as shrimp research vessel catches were analysed. Both shrimp and fish by-catch consistently showed seasonality in abundance. However, while shrimp catches declined from 49.20% of total in 1979 to 13.795 in 1980, incidental fish landings rose proportionately. The fish shovelled overboard measured 18.0cm or less in total length. Prominent among these were Brachydeuterus auritus, Ilisha africana and Vomer setapinnis. The fish discard amounted to 43.68% of the total catch. Tipo: Report Palavras-chave: Fishery management; Shrimp fisheries; Fishery management; Http://aims.fao.org/aos/agrovoc/c_24026. Ano: 1982 URL: http://hdl.handle.net/1834/2212 The recent trends and future prospects of shrimp fishery. OceanDocs Adetayo, J.A.. Between 1969-1980, the annual shrimp catch ranged from 585 to 21116 tonnes. The percentage of shrimp in the total catch showed a sharp decline from 75% in 1969 to 18% in 1979 while the fish by-catch rose from 25% to 82. The shrimps were abundant during the rains (April to September). The number of shrimpers and effort rose by 338% and 337% respectively. The mean annual catch per unit effort (cpue) ranged between 0,196 in 1972 and 0.365 (tonne per day out of (port) in 1975. Japan, United States of America, and Britain are the main importers of Nigerian shrimps. Tipo: Report Palavras-chave: Shrimp fishery; Fishery development. Ano: 1982 URL: http://hdl.handle.net/1834/2320 Registros recuperados: 2 Primeira ... 1 ... Última

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