Design factors and socioeconomic variables associated with ecological responses to fishery closures in the Western Indian Ocean

Daw, Tim M., Cinner, Joshua E., McClanahan, Timothy R., Graham, Nicholas A.J., and Wilson, Shaun K. (2011) Design factors and socioeconomic variables associated with ecological responses to fishery closures in the Western Indian Ocean. Coastal Management, 39 (4). pp. 412-424.

[img] PDF (Published Version) - Published Version
Restricted to Repository staff only

View at Publisher Website:


We assessed the ability of socioeconomic variables (population size, perceived infringement, and community infrastructure) and design features (closure age and area) to predict ecological indicators of "success" in seventeen coral-reef fishery closures in the Western Indian Ocean. Success was measured as absolute fish biomass and coral cover in closures, and the response ratio of these variables indicating the level of difference relative to control sites outside closures. Fish biomass had a greater and more consistent response to protection than coral cover. Human population density had a strong positive association with the response of fish biomass, which was driven by lower biomass outside marine protected areas (MPAs) in high human population density sites, rather than higher biomass within MPAs. Perceived infringement was negatively associated with the absolute and response ratio of fish biomass. Coral cover was variable, weakly related to closure, and positively related to closure size and human population density. This, and previous regional studies, indicate that physical design features have a modest effect on the response of fish to MPAs, that design features interact with compliance, and that human population density around closures can indirectly influence the effect of MPAs on fish populations.

Item ID: 17575
Item Type: Article (Research - C1)
ISSN: 1521-0421
Keywords: coral reefs, fisheries management, marine reserves, social–ecological systems
Date Deposited: 21 Jul 2011 05:45
FoR Codes: 16 STUDIES IN HUMAN SOCIETY > 1608 Sociology > 160802 Environmental Sociology @ 40%
07 AGRICULTURAL AND VETERINARY SCIENCES > 0704 Fisheries Sciences > 070403 Fisheries Management @ 40%
06 BIOLOGICAL SCIENCES > 0602 Ecology > 060205 Marine and Estuarine Ecology (incl Marine Ichthyology) @ 20%
SEO Codes: 96 ENVIRONMENT > 9605 Ecosystem Assessment and Management > 960506 Ecosystem Assessment and Management of Fresh, Ground and Surface Water Environments @ 50%
83 ANIMAL PRODUCTION AND ANIMAL PRIMARY PRODUCTS > 8302 Fisheries - Wild Caught > 830299 Fisheries- Wild Caught not elsewhere classified @ 50%
Downloads: Total: 4
More Statistics

Actions (Repository Staff Only)

Item Control Page Item Control Page