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Risk sensitivity and the behaviour of fishing vessels


Dowling, NA and Wilcox, C and Mangel, M, Risk sensitivity and the behaviour of fishing vessels, Fish and Fisheries, 16, (3) pp. 399-425. ISSN 1467-2960 (2015) [Refereed Article]

Copyright Statement

2013 John Wiley & Sons

DOI: doi:10.1111/faf.12064


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.

Item Details

Item Type:Refereed Article
Keywords:behavioural responses, dynamic-state variable modelling, fishing risk, fleet dynamics, risk perception, utility function, Xiphias gladius
Research Division:Agricultural, Veterinary and Food Sciences
Research Group:Fisheries sciences
Research Field:Fisheries management
Objective Division:Animal Production and Animal Primary Products
Objective Group:Fisheries - wild caught
Objective Field:Fisheries - wild caught not elsewhere classified
UTAS Author:Wilcox, C (Dr Chris Wilcox)
ID Code:118883
Year Published:2015
Web of Science® Times Cited:11
Deposited By:Zoology
Deposited On:2017-07-21
Last Modified:2017-08-09

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