Spillover of fish naïveté from marine reserves

Januchowski-Hartley, Fraser, Graham, Nicholas A.J., Cinner, Joshua E., and Russ, Garry R. (2013) Spillover of fish naïveté from marine reserves. Ecology Letters, 16 (2). pp. 191-197.

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Abstract

Spillover of adult fish biomass is an expected benefit from no-take marine reserves to adjacent fisheries. Here, we show fisher-naive behaviour in reef fishes also spills over from marine reserves, potentially increasing access to fishery benefits by making fishes more susceptible to spearguns. The distance at which two targeted families of fishes began to flee a potential fisher [flight initiation distance (FID)] was lower inside reserves than in fished areas, and this reduction extended outside reserve boundaries. Reduced FID persisted further outside reserves than increases in fish biomass. This finding could help increase stakeholder support for marine reserves and improve current models of spillover by informing estimates for spatial changes in catchability. Behavioural changes of fish could help explain differences between underwater visual census and catch data in quantifying the spatial extent of spillover from marine reserves, and should be considered in the management of adjacent fisheries.

Item ID: 25499
Item Type: Article (Research - C1)
ISSN: 1461-0248
Keywords: coral reefs, fish behaviour, fisheries, flight initiation distance, marine protected areas, spearfishing
Date Deposited: 13 Mar 2013 05:37
FoR Codes: 07 AGRICULTURAL AND VETERINARY SCIENCES > 0704 Fisheries Sciences > 070403 Fisheries Management @ 50%
06 BIOLOGICAL SCIENCES > 0602 Ecology > 060201 Behavioural Ecology @ 50%
SEO Codes: 96 ENVIRONMENT > 9605 Ecosystem Assessment and Management > 960507 Ecosystem Assessment and Management of Marine Environments @ 100%
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