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Ecosystem trends: evidence for agreement between fishers' perceptions and scientific information ArchiMer
Rochet, Marie-joelle; Prigent, M; Bertrand, Jacques; Carpentier, Andre; Coppin, Franck; Delpech, Jean-paul; Fontenelle, G; Foucher, Eric; Mahe, Kelig; Rostiaux, Emilie; Trenkel, Verena.
The results of a survey on fishers' perceptions of recent changes in the eastern English Channel ecosystem carried out in 2006 were compared with fishery and bottom-trawl survey data. A hypothesis-testing framework was used, testing the null hypothesis that fishers' statements were true, which permitted evaluation of both agreement and disagreement. Overall good agreement between fishers' statements and scientific data was found, and both sources suggested that the fish community in the Channel is undergoing large changes, among which are decreases in some commercially important species; in addition, a number of human pressures impact the ecosystem. Fishers had an accurate perception of changes and their time-frames, but not necessarily of their causes....
Tipo: Text Palavras-chave: Stakeholder interview; Hypothesis testing; Fisher knowledge; Ecosystem approach to fisheries management; Eastern English Channel.
Ano: 2008 URL: http://archimer.ifremer.fr/doc/2008/publication-4474.pdf
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Using cognitive maps to investigate fishers' ecosystem objectives and knowledge ArchiMer
Prigent, Magali; Fontenelle, Guy; Rochet, Marie-joelle; Trenkel, Verena.
This paper presents a survey of French Eastern English Channel fishers' observations of the past and current state of the marine ecosystem and their wishes for the future, as a first step towards formulating management objectives. Twenty-nine semi-directive interviews were carried out in June 2006 among fishers and shellfish farmers. Cognitive maps proved useful to formalise their experience and knowledge. Most interviewees mentioned a decrease of the resource in recent years and pointed out the presence of several problems, such as pollution, degradation of the ocean floor and harmful impacts of human activities, including fishing. The indicators used by the fishers as the basis to form their opinion were similar to those generally used by scientists for...
Tipo: Text Palavras-chave: Eastern English Channel; Management objectives; Stakeholder interview; Cognitive map; Ecosystem approach to fisheries; Fisher knowledge.
Ano: 2008 URL: http://archimer.ifremer.fr/doc/2008/publication-6134.pdf
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