Artículos de revistas
Foraging Behaviour Of Brazilian Riverine And Coastal Fishers: How Much Is Explained By The Optimal Foraging Theory?
Registro en:
Conservation And Society. , v. 9, n. 3, p. 236 - 246, 2011.
9724923
10.4103/0972-4923.86994
2-s2.0-82055191821
Autor
Lopes P.F.M.
Clauzet M.
Hanazaki N.
Ramires M.
Silvano R.A.M.
Begossi A.
Institución
Resumen
Optimal Foraging Theory (OFT) is here applied to analyse the foraging behaviour of Brazilian artisanal fishers of the Atlantic coast (Itacuruçá and São Paulo Bagre villages) and of the inland Amazonian region (Jarauá and Ebenezer villages). Two OFT predictions are tested. Hypotheis1: A fisher who travels to more distant sites should return with more fish, and Hypothesis 2: The further a fisher goes, the longer s/he should stay fishing in a patch. OFT did not explain fishers' behaviour (non-significant regressions for coastal villages) or explain it in specific seasons (low water season for one Amazonian village: H1 r 2=24.1; H2 r 2=37.2) and in specific habitats (e.g., lakes and backwaters in Jarauá village, Lakes: H1 r 2=13.5; H2 r 2=24.0; Backwaters: H1 r 2=34.4; H2 r 2=46.5). The findings can indicate areas or seasons that are under higher fishing pressure, when fishers try to get the best out of a situation without any concern about resource conservation. 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