Produção Nacional
Revisado por pares
Landscape variables affecting fishery yield in lake systems of the Central Amazon region, Brazil
2008; Wiley; Volume: 25; Issue: 3 Linguagem: Inglês
10.1111/j.1439-0426.2008.01122.x
ISSN1439-0426
AutoresKatie Nolan, Nídia Noemi Fabré, Vandick da Silva Batista,
Tópico(s)Fish Biology and Ecology Studies
ResumoJournal of Applied IchthyologyVolume 25, Issue 3 p. 294-298 Landscape variables affecting fishery yield in lake systems of the Central Amazon region, Brazil K. S. Nolan, K. S. Nolan Programa de Biologia de Água Doce e Pesca Interior, Instituto Nacional de Pesquisas da Amazônia, Manaus, Brazil Pará Federal University/UFPa, Campus de Bragança, Bragança, Pará, BrazilSearch for more papers by this authorN. N Fabré, N. N Fabré Universidade Federal de Alagoas/UFAL, Instituto de Ciências Biológicas e da Saúde/ICBS, Maceió, Alagoas, BrazilSearch for more papers by this authorV. S. Batista, V. S. Batista Universidade Federal de Alagoas/UFAL, Instituto de Ciências Biológicas e da Saúde/ICBS, Maceió, Alagoas, BrazilSearch for more papers by this author K. S. Nolan, K. S. Nolan Programa de Biologia de Água Doce e Pesca Interior, Instituto Nacional de Pesquisas da Amazônia, Manaus, Brazil Pará Federal University/UFPa, Campus de Bragança, Bragança, Pará, BrazilSearch for more papers by this authorN. N Fabré, N. N Fabré Universidade Federal de Alagoas/UFAL, Instituto de Ciências Biológicas e da Saúde/ICBS, Maceió, Alagoas, BrazilSearch for more papers by this authorV. S. Batista, V. S. Batista Universidade Federal de Alagoas/UFAL, Instituto de Ciências Biológicas e da Saúde/ICBS, Maceió, Alagoas, BrazilSearch for more papers by this author First published: 18 May 2009 https://doi.org/10.1111/j.1439-0426.2008.01122.xCitations: 11 Author's address: Vandick S. Batista, Universidade Federal de Alagoas/UFAL, Instituto de Ciências Biológicas e da Saúde/ICBS, Praça Afrânio Jorge s/n, Prado, 57010-020, Maceió, Alagoas, Brazil.E-mail: vbatista@pq.cnpq.br Read the full textAboutPDF ToolsRequest permissionExport citationAdd to favoritesTrack citation ShareShare Give accessShare full text accessShare full-text accessPlease review our Terms and Conditions of Use and check box below to share full-text version of article.I have read and accept the Wiley Online Library Terms and Conditions of UseShareable LinkUse the link below to share a full-text version of this article with your friends and colleagues. Learn more.Copy URL Share a linkShare onFacebookTwitterLinked InRedditWechat Summary According to fisheries data, lakes are important systems for fish production in the Amazon basin. However, there is no information about the relationship between landscape variables and fishing yield that allows foresight into potential resource exploitation in this environment. The present study aims to evaluate this relationship with the hypothesis: lakes of different shapes give the same fishery yield in the Amazon, after considering the effects of lake size, distance to the river, fishing effort, fuel and ice used. Fishery data from 1994 to 1996 were analyzed with regard to 3228 trips on 50 lakes of the main white water tributaries of the Amazon basin. Analysis of covariance was applied to test this hypothesis. With variables such as fishing grounds access, fishing effort and lake shape the model explained a significant 72% of variabilities in the fisheries yield. Fishing yields among lake systems were different, thus the null hypothesis was rejected (P < 0.05). Results indicate that dendritic lakes far distant from the main river have greater productivity than floodplain lakes because there are more habitats of fish refuge for reproduction and feed available to the fish; there are also more limitations to access by predators. Citing Literature Volume25, Issue3Special Issue: Special Issue: Modern Fisheries Research Approaches in BrazilJune 2009Pages 294-298 RelatedInformation
Referência(s)