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Báo cáo y học: "In search of traditional bio-ecological knowledge useful for fisheries co-management: the case of jaraquis Semaprochilodus spp. (Characiforme"

Tuyển tập các báo cáo nghiên cứu về y học được đăng trên tạp chí y học Wertheim cung cấp cho các bạn kiến thức về ngành y đề tài: In search of traditional bio-ecological knowledge useful for fisheries co-management: the case of jaraquis Semaprochilodus spp. (Characiformes, . | Batista and Lima Journal of Ethnobiology and Ethnomedicine 2010 6 15 http www.ethnobiomed.eom content 6 1 15 JOURNAL OF ETHNOBIOLOGY AND ETHNOMEDICINE RESEARCH Open Access In search of traditional bio-ecological knowledge useful for fisheries co-management the case of jaraquis Semaprochilodus spp. Characiformes Prochilodontidae in Central Amazon Brazil VandickS Batista 21 and Liane G Lima22 Abstract The jaraquis Semaprochilodusspp. are the most abundant group in the fishing landing in Manaus. However just command and control management strategies have been used by the fishery governmental agency in the region without the power to enforce centralized decisions. The fishermen and their culture represent a source of information on dynamics of the resources and aquatic environments fundamental in making possible the co-management of the fishing resources. The present study aims to contribute to management through identification of common information available in scientific and traditional knowledge about the jaraquis bio-ecology. There were 57 semi-structured interviews recorded with fishermen of Manaus and rural areas of Manacapuru in 2002 concerning biological and ecological aspects. Similarity was observed between scientific and traditional knowledge in the following items size of first sexual maturation spawning type parental care trophic relationships and migratory behavior as well as in some aspects of the mortality and growth of the species. However there was less ethnoicthyological information on fecundity and the determination of the age and growth of adult fish. Common information would be used preferably by agencies to start an effective and technical dialogue with commercial and riverine fishermen to design management plans in a decentralized strategy. Background Fishing is a traditional activity in the Amazon region performed by Indians and local people for direct feeding generally called subsistence fishery. Commercial activity became more intensive from