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Drivers of the Distribution of Fisher Effort at Lake Alaotra, Madagascar

Understanding how fishers make decisions is important for improving management of fisheries. There is debate about the extent to which small-scale fishers follow an ideal free distribution (IFD) – distributing their fishing effort efficiently according to resource availability rather than being infl...

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Published in:Human ecology : an interdisciplinary journal 2016-02, Vol.44 (1), p.105-117
Main Authors: Wallace, Andrea P. C, Jones, Julia P. G, Milner-Gulland, E. J, Wallace, Graham E, Young, Richard, Nicholson, Emily
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creator Wallace, Andrea P. C
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description Understanding how fishers make decisions is important for improving management of fisheries. There is debate about the extent to which small-scale fishers follow an ideal free distribution (IFD) – distributing their fishing effort efficiently according to resource availability rather than being influenced by social factors or personal preference. Using detailed data from 1800 fisher catches and from semi-structured interviews with over 700 fishers at Lake Alaotra, the largest inland fishery in Madagascar, we show that fishers generally conform to IFD. However, there were differences in catch: effort relationships between fishers using different gear types as well as other revealing deviations from the predictions of IFD. Fishers report routine as the primary determinant of their choice of fishing location, explaining why they do not quickly respond to changes in catch at a site. Understanding the influences on fishers’ spatial behaviour will allow better estimates of costs of fishing policies on resource users, and help predict their likely responses. This can inform management strategies to minimise the negative impacts of interventions, increasing local support for and compliance with rules.
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subjects Adaptation
Anthropology
Aquatic habitats
compliance
Decisions
Environmental Management
Fish
Fisheries
Fisheries management
Fisheries science
Fishers
Fishery resources
Fishing
Fishing communities
freshwater fisheries
Geography
Gill nets
Inland fisheries
interviews
issues and policy
Lakes
Ocean fisheries
prediction
RESEARCH REPORTS
Resource availability
Resource management
Risk
Small-scale fisheries
Social factors
Social Sciences
Sociology
Spatial behavior
Spatial discrimination
Strategies
title Drivers of the Distribution of Fisher Effort at Lake Alaotra, Madagascar
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