Fishery consequences of marine reserves: short-term pain for longer-term gain

Hopf, Jess K., Jones, Geoffrey P., Williamson, David H., and Connolly, Sean R. (2016) Fishery consequences of marine reserves: short-term pain for longer-term gain. Ecological Applications, 26 (3). pp. 818-829.

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Abstract

Marine reserves are often established in areas that support fisheries. Larval export from reserves is argued to help compensate for the loss of fishable habitat; however, previous modeling studies have focused on long-term equilibrium outcomes. We examined the transient consequences of reserve establishment for fished metapopulations, considering both a well-mixed larval pool and a spatially explicit model based on a coral trout (Plectropomus spp.) metapopulation. When fishing pressure was reallocated relative to the area protected, yields decreased initially, then recovered, and ultimately exceeded pre-reserve levels. However, recovery time was on the order of several years to decades. If fishing pressure intensified to maintain pre-reserve yields, reserves were sometimes unable to support the increased mortality and the metapopulation collapsed. This was more likely when reserves were small, or located peripherally within the metapopulation. Overall, reserves can achieve positive conservation and fishery benefits, but fisheries management complementary to reserve implementation is essential.

Item ID: 46304
Item Type: Article (Research - C1)
ISSN: 1939-5582
Keywords: coral trout (Plectropomus spp.); fisheries; larval connectivity; marine protected areas; marine reserves; metapopulations; reserve design; short-term effects; transient dynamics
Funders: National Environmental Research Program (NERP), Australian Research Council (ARC), James Cook University (JCU)
Date Deposited: 10 Nov 2016 04:58
FoR Codes: 01 MATHEMATICAL SCIENCES > 0102 Applied Mathematics > 010202 Biological Mathematics @ 30%
05 ENVIRONMENTAL SCIENCES > 0502 Environmental Science and Management > 050205 Environmental Management @ 50%
06 BIOLOGICAL SCIENCES > 0699 Other Biological Sciences > 069999 Biological Sciences not elsewhere classified @ 20%
SEO Codes: 83 ANIMAL PRODUCTION AND ANIMAL PRIMARY PRODUCTS > 8302 Fisheries - Wild Caught > 830201 Fisheries Recreational @ 40%
83 ANIMAL PRODUCTION AND ANIMAL PRIMARY PRODUCTS > 8302 Fisheries - Wild Caught > 830204 Wild Caught Fin Fish (excl. Tuna) @ 40%
96 ENVIRONMENT > 9699 Other Environment > 969999 Environment not elsewhere classified @ 20%
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