Fishers’ knowledge about fish trophic interactions in the southeastern Brazilian coast

Abstract

BackgroundData derived from studies of fishers’ local ecological knowledge (LEK) can be invaluable to the proposal of new studies and more appropriate management strategies. This study analyzed the fisher’s LEK about trophic relationships of fishes in the southeastern Brazilian coast, comparing fishers’ LEK with scientific knowledge to provide new hypotheses.MethodsThe initial contacts with fishers were made through informal visits in their residences, to explain the research goals, meet fishers and their families, check the number of resident fishers and ask for fishers’ consent to participate in the research. After this initial contact, fishers were selected to be included in the interviews through the technique of snowball sampling. The fishers indicated by others who attended the criteria to be included in the research were interviewed by using a semi-structured standard questionnaire.ResultsThere were interviewed 26 artisanal fishers from three communities of the Ilhabela: Jabaquara, Fome and Serraria. The interviewed fishers showed a detailed knowledge about the trophic interactions of the studied coastal fishes, as fishers mentioned 17 food items for these fishes and six fish and three mammals as fish predators. The most mentioned food items were small fish, shrimps and crabs, while the most mentioned predators were large reef fishes. Fishers also mentioned some predators, such as sea otters, that have not been reported by the biological literature and are poorly known.ConclusionsThe LEK of the studied fishers showed a high degree of concordance with the scientific literature regarding fish diet. This study evidenced the value of fishers’ LEK to improve fisheries research and management, as well as the needy to increase the collaboration among managers, biologists and fishers.

Análise etnoictiológica da pesca artesanal nas bacias hidrográficas dos Rios Uruguai e Jacuí­­, Rio Grande do Sul, Brasil

“…O alto consumo de peixe ainda garante a proteína animal aos pescadores e, consequentemente, a segurança alimentar destas comunidades, bem como de outras comunidades de pescadores estudadas no Brasil (DIEGUES et al, 2000;KALIKOSKI e VASCONCELLOS, 2013;RAMIRES et al, 2015).…”

“…O contato direto com os recursos pesqueiros possibilita aos pescadores angariar um amplo conhecimento, tanto referente à biologia das espécies presentes nestes locais, quanto ao seu estado de conservação, com grande valor colaborativo para os conhecimentos científicos e as práticas de manejo que auxiliam na conservação destes recursos (BEGOSSI, 2010;SILVANO, 2014;RAMIRES et al, 2015). Nesse sentido, surge a etnoictiologia, que é a ciência que estuda o conhecimento adquirido pelas comunidades humanas através da interação com os peixes, englobando aspectos tanto cognitivos quanto comportamentais (MARQUES, 2001).…”

Towards an Interdisciplinary Focus on Sound in Ethnobiology Research

“…A third is evident in classification systems research, some of which incorporate all the physical senses. For example, an article by Ramires et al (2015) describes research incorporating visual and aural methodologies to elicit data from participants.…”

Gerenciamento costeiro integrado sob uma perspectiva etno-oceanográfica: o conhecimento tradicional na Baía do Araçá

“…Embora afastados e parcialmente isolados, de alguma forma, os caiçaras mantiveram algum contato com a cultura dos centros urbanos, da qual incorporaram diversos elementos (WILLEMS, 2003) (GADGIL et al, 1993;BERKES et al, 1995;HILL et al, 2010;MOURA et al, 2013;NARCHI et al, 2014;RAMIRES et al, 2015). No caso das comunidades tradicionais que habitam as regiões costeiras, como os caiçaras do litoral paulista, seu CT pode combinar informações sobre espécies marinhas e seu comportamento, habitats costeiro-marinhos, processos físico-oceanográficos e métodos de manejo capazes de garantir sua subsistência (RUDDLE, 2000;DIEGUES, 2003DIEGUES, , 2004a  ser usado no contexto de avaliações ambientais (BERKES et al, 1995).…”

“…Araçá possui e tais resultados podem contribuir no processo de formulação de políticas de ordenamento. Assim, no contexto da gestão integrada, esse conjunto de saberes tradicionais pode fornecer um grande valor para o desenvolvimento de estratégias de gestão local, pois além de incorporar diversas informações sobre o funcionamento do território, consideram suas opiniões, valores e percepções (HILL et al, 2010;MOURA et al, 2013;NARCHI et al, 2014;RAMIRES et al, 2015).…”