Spillover of fish naivete from marine reserves

Januchowski-Hartley, Fraser A. and Graham, Nicholas A. J. and Cinner, Joshua E. and Russ, Garry R. (2013) Spillover of fish naivete from marine reserves. Ecology Letters, 16 (2). pp. 191-197. ISSN 1461-023X

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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 Type: Journal Article
Journal or Publication Title: Ecology Letters
Uncontrolled Keywords: /dk/atira/pure/subjectarea/asjc/1100/1105
Subjects:
Departments: Faculty of Science and Technology > Lancaster Environment Centre
ID Code: 81024
Deposited By: ep_importer_pure
Deposited On: 17 Aug 2016 15:08
Refereed?: Yes
Published?: Published
Last Modified: 29 Jan 2020 03:12
URI: https://eprints.lancs.ac.uk/id/eprint/81024

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