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Fisher Behaviour and Economic Interactions Between Fisheries: Examining Seaweed and Scallop Fisheries of the Brest District (Western Brittany, France) ArchiMer
Kervarec, Fabienne; Arzel, Pierre; Guyader, Olivier.
This papers aims at understanding the strategies of fishers operating two fisheries which are biologically independent but economically interrelated. The case studied is that of the fishers who dredge scallops, queens and clams in the bay of Brest during winter, and harvest the Laminaria digitata field in the open sea, north-west of Brest in summer. Taking this peculiarity into account, the paper makes a distinction between different strategies, which enable fishers to adapt to a changing environment (abundance variation but also economic and institutional shifts) during recent years. Fishers have to choose among different activities, which bring about various investments. Vice versa, their behaviour has feedback effects on the global institutional...
Tipo: Text Palavras-chave: Fisher behaviour; Fisheries management; Seaweed harvesting; Scallop dredging..
Ano: 1999 URL: http://archimer.ifremer.fr/doc/00243/35412/33939.pdf
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Adaptive responses of tropical tuna purse-seiners under temporal regulations ArchiMer
Torres-irineo, Edgar; Dreyfus-leon, Michel; Gaertner, Daniel; Salas, Silvia; Marchal, Paul.
The failure to achieve fisheries management objectives has been broadly discussed in international meetings. Measuring the effects of fishery regulations is difficult due to the lack of detailed information. The yellowfin tuna fishery in the eastern Pacific Ocean offers an opportunity to evaluate the fishers’ responses to temporal regulations. We used data from observers on-board Mexican purse-seine fleet, which is the main fleet fishing on dolphin-associated tuna schools. In 2002, the Inter-American Tropical Tuna Commission implemented a closed season to reduce fishing effort for this fishery. For the period 1992–2008, we analysed three fishery indicators using generalized estimating equations to evaluate the fishers’ response to the closure. We found...
Tipo: Text Palavras-chave: Closed season; Eastern tropical Pacific; Fisher behaviour; Purse-seine fishing; Tropical tuna.
Ano: 2017 URL: http://archimer.ifremer.fr/doc/00360/47088/48565.pdf
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Thirty years of fleet dynamics modelling using discrete-choice models: What have we learned? ArchiMer
Girardin, Raphael; Hamon, Katell; Pinnegar, John; Poos, Jan Jaap; Thebaud, Olivier; Tidd, Alex; Vermard, Youen; Marchal, Paul.
Anticipating fisher behaviour is necessary for successful fisheries management. Of the different concepts that have been developed to understand individual fisher behaviour, random utility models (RUMs) have attracted considerable attention in the past three decades, and more particularly so since the 2000s. This study aimed at summarizing and analysing the information gathered from RUMs used during the last three decades around the globe. A methodology has been developed to standardize information across different studies and compare RUM results. The studies selected focused on fishing effort allocation. Six types of fisher behaviour drivers were considered: the presence of other vessels in the same fishing area, tradition, expected revenue, species...
Tipo: Text Palavras-chave: Fisher behaviour; Meta-analysis; Random utility model.
Ano: 2017 URL: https://archimer.ifremer.fr/doc/00357/46834/47127.pdf
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