Spillover from marine reserves and the replenishment of fished stocks
Halpern, Benjamin S.
Lester, Sarah E.
Kellner, Julie B.
MetadataShow full item record
KeywordAdult fish movement; Fisheries; Global; Marine protected areas; No-take reserves; Spillover effect; Synthesis
No-take marine reserves are widely recognized as an effective conservation tool for protecting marine resources. Despite considerable empirical evidence that abundance and biomass of fished species increase within marine reserve boundaries, the potential for reserves to provide fisheries and conservation benefits to adjacent waters remains heavily debated. This paper uses statistical and population models to evaluate published empirical data on adult spillover from marine reserves and shows that spillover is a common phenomenon for species that respond positively to reserve protection, but at relatively small scales, detectable on average up to 800 m from reserve boundaries. At these small scales, local fisheries around reserves were likely unsustainable in 12 of 14 cases without the reserve, and spillover partially or fully offsets losses in catch due to reserve closure in the other two cases. For reserves to play a role in sustaining and replenishing larger-scale fished stocks, networks of reserves may be necessary, but as few exist this is difficult to evaluate. The results suggest reserves can simultaneously meet conservation objectives and benefit local fisheries adjacent to their boundaries.
Author Posting. © Foundation for Environmental Conservation, 2009. This article is posted here by permission of Cambridge University Press for personal use, not for redistribution. The definitive version was published in Environmental Conservation 36 (2009): 268-276, doi:10.1017/S0376892910000032.
Showing items related by title, author, creator and subject.
Moeller, Holly V. (Massachusetts Institute of Technology and Woods Hole Oceanographic Institution, 2010-06)In this thesis, I expand a spatially-explicit bioeconomic fishery model to include the negative effects of fishing effort on habitat quality. I consider two forms of effort driven habitat damage: First, fishing effort ...
Scientific research and the Galapagos marine resources reserve : synopsis of a workshop April 20-24, 1987 Guayaquil, Ecuador Gaines, Arthur G.; Andrade, Hernan Moreano (Woods Hole Oceanographic Institution, 1991)In 1986 the Government of Ecuador established the Galápagos Marine Resources Reserve encompassing the entire Galápagos Archipelago, an area embracing 70,00 square kilometers of the Pacific Ocean and its underlying seabed. ...
Moeller, Holly V.; Neubert, Michael G. (2014-07)Bioeconomic analyses of spatial fishery models have established that marine reserves can be economically optimal (i.e., maximize sustainable profit) when there is some type of spatial heterogeneity in the system. Analyses ...