Risk aversion in allocating fishing effort in a highly uncertain coastal fishery for pelagic fish, Moluccas, Indonesia

Oostenbrugge, J.A.E. van; Densen, W.L.T. van; Machiels, M.A.M.

doi:10.1139/cjfas-58-8-1683

Cited by 10 publications

(11 citation statements)

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“…Hence, measurement of fisher behaviour in allocating effort in small‐scale coastal fisheries is important to management. Major problems in the analysis of effort dynamics are determining how fishers adapt their effort to changes in external factors (Hilborn & Walters 1992; van Oostenbrugge, van Densen & Machiels 2001; Ulrich et al. 2001), and competition between fishers (Jennings, Kaiser & Reynolds 2001).…”

Section: Introductionmentioning

confidence: 99%

“…Hence, measurement of fisher behaviour in allocating effort in smallscale coastal fisheries is important to management. Major problems in the analysis of effort dynamics are determining how fishers adapt their effort to changes in external factors (Hilborn & Walters 1992;van Oostenbrugge, van Densen & Machiels 2001;, and competition between fishers (Jennings, Kaiser & Reynolds 2001). The dynamics of fishing gears and their competitive interactions have been studied (Rijnsdorp, Dol, Hoyer & Pastoors 2000a;Rijnsdorp et al 2000a;Be´ne´& Tewfik 2001;Ulrich & Andersen 2004), but there is little reference to small-scale in tropical coastal fisheries.…”

Section: Introductionmentioning

confidence: 99%

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Dynamics of fishing gear allocation by fishers in small‐scale coastal fisheries of Pelabuhanratu Bay, Indonesia

Wiyono

Yamada

Tanaka

et al. 2006

Fisheries Management Eco

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Fishing gear usage in small-scale coastal fisheries of Pelabuhanratu Bay, Indonesia was explained by two approaches: temporal fishing gear allocation analysis and adaptive responses of fishers to external factors, especially climate and abundance of target species. Gear usage, with the exception of hand lines and seine nets, was more intensive during the dry season than the rainy season. The decision to use seine nets was governed by seasonal variability in the abundance of Auxis thazard, Lacepe`de, and Trichiurus spp. to the catch. Sustainable management of fishing activities in Pelabuhanratu Bay requires proportional reductions in the use of lift nets and fixed gillnets across the seasons rather than gear specific effort reductions.fishing gear allocation, Indonesia, seasonal dynamics, small-scale coastal fisheries.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Dynamics of fishing gear allocation by fishers in small‐scale coastal fisheries of Pelabuhanratu Bay, Indonesia

Wiyono

Yamada

Tanaka

et al. 2006

Fisheries Management Eco

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“…However, reserve closures could increase fisheries production in the medium term through use of potentially better, unexploited fishing grounds (Oostenbrugge et al. ; Salas & Gaertner ; Stevenson et al. ) or in the long term through spillover (Roberts et al 2001; Harrison et al 2012), which offsets the negative effects of displacement.…”

Section: Discussionmentioning

confidence: 99%

Quantifying the squeezing or stretching of fisheries as they adapt to displacement by marine reserves

Chollett

Box

Mumby

2015

Conservation Biology

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The designation of no-take marine reserves involves social and economic concerns due to the resulting displacement of fishing effort, when fishing rights are removed from those who traditionally fished within an area. Displacement can influence the functioning of the fishery and success of the reserve, yet levels of displacement are seldom quantified after reserve implementation and very rarely before that. We devised a simple analytical framework based on set theory to facilitate reserve placement. Implementation of the framework requires maps of fishing grounds, fishing effort, or catch per unit effort for at least 2 years. The framework quantifies the level of conflict that a reserve designation might cause in the fishing sector due to displacement and the opportunities to offset the conflict through fisher spatial mobility (i.e., ability of fishers to fish elsewhere). We also considered how the outputs of the framework can be used to identify targeted management interventions for each fishery. We applied the method in Honduras, where the largest marine protected area in Central America is being placed, for which spatial data on fishing effort were available for 6 fisheries over 3 years. The proposed closure had a greater negative impact on the shrimp and lobster scuba fisheries, which concentrated respectively 28% and 18% of their effort inside the reserve. These fisheries could not accommodate the displacement within existing fishing grounds. Both would be forced to stretch into new fishing grounds, which are available but are of unknown quality. These stakeholders will likely require compensation to offset costly exploratory fishing or to travel to fishing grounds farther away from port.

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“…We applied this model to evaluate the impact of various forms of spatial management in a tuna longline fishery, assuming that fishers aim to maximize their accumulated profit over the course of a fishing season. Moreover, it is acknowledged that risk and its perception are key components driving fisher behaviour (Dupont 1993;Mistiaen and Strand 2000;Oostenbrugge et al 2001;Eggert and Martinsson 2004;Smith and Wilen 2005;Christensen and Raakjaer 2006;Holland 2008;Brick et al 2012;Nursey-Bray et al 2012). Moreover, it is acknowledged that risk and its perception are key components driving fisher behaviour (Dupont 1993;Mistiaen and Strand 2000;Oostenbrugge et al 2001;Eggert and Martinsson 2004;Smith and Wilen 2005;Christensen and Raakjaer 2006;Holland 2008;Brick et al 2012;Nursey-Bray et al 2012).…”

Section: Introductionmentioning

confidence: 99%

“…There has been debate about the extent to which the maximization of short-term profit is the key motivation for fishers (Bockstael and Opaluch 1983;Robinson and Pascoe 1997;Hutton et al 2004). Moreover, it is acknowledged that risk and its perception are key components driving fisher behaviour (Dupont 1993;Mistiaen and Strand 2000;Oostenbrugge et al 2001;Eggert and Martinsson 2004;Smith and Wilen 2005;Christensen and Raakjaer 2006;Holland 2008;Brick et al 2012;Nursey-Bray et al 2012).…”

Section: Introductionmentioning

confidence: 99%

Risk sensitivity and the behaviour of fishing vessels

2013

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Risk sensitivity is an important component of fisher behaviour, yet its impact on fisher decision‐making and utility is poorly understood. Here, we incorporate various forms of risk in a model of location choice by fishing vessels targeting broadbill swordfish, Xiphias gladius, and evaluate the importance of risk sensitivity for predicting location, perceived utility and profit over a fishing season. We consider short‐term, or trip‐level, risk as natural, social or endogenous. Longer‐term, or seasonal, risk includes accumulated profit as a state variable. When considering only short‐term risk, endogenous and social risks are predicted to have the largest impact on profit, while natural risk also is predicted to impact on location choice. When longer‐term (seasonal) risk was considered, the impacts of short‐term (trip‐level) risks on profit were reduced. Model results were somewhat sensitive to assumed input parameters. The model allows users to quantify the extent of risk interaction and the relative sensitivity of perceived utility, location choice and profit. By providing a utility function capturing the fisher decision‐making process, the model provides a platform for the consideration of simultaneous forms of risk under different circumstances.

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Risk aversion in allocating fishing effort in a highly uncertain coastal fishery for pelagic fish, Moluccas, Indonesia

Cited by 10 publications

References 0 publications

Dynamics of fishing gear allocation by fishers in small‐scale coastal fisheries of Pelabuhanratu Bay, Indonesia

Dynamics of fishing gear allocation by fishers in small‐scale coastal fisheries of Pelabuhanratu Bay, Indonesia

Quantifying the squeezing or stretching of fisheries as they adapt to displacement by marine reserves

Risk sensitivity and the behaviour of fishing vessels

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