Spillover from six western Mediterranean marine protected areas: evidence from artisanal fisheries

Goñi, Raquel; Adlerstein, Sara A.; Alvarez-Berastegui, Diego; Forcada, Aitor; Reñones, Olga; Criquet, Géraldine; Polti, Sandrine; Cadiou, Gwenaël; Valle, Carlos; Lenfant, Philippe; Bonhomme, Patrick; Pérez-Ruzafa, Ángel; Sánchez-Lizaso, José Luis; García-Charton, José Antonio; Bernard, Guillaume; Stelzenmüller, Vanessa; Planes, Serge

doi:10.3354/meps07532

Cited by 196 publications

(191 citation statements)

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“…Our estimates of spillover distance are consistent with studies of large-scale partial-protection marine protected areas that find even greater spillover distances (Murawski et al 2005), with studies of adult movement patterns showing similar or greater distances of movement across reserve boundaries (for example (Samoilys 1997;Kelly & MacDiarmid 2003;Topping et al 2005), and with estimates from spillover studies that did not meet our inclusion criteria (Abesamis & Russ 2005;Goni et al 2008;Harmelin-Vivien et al 2008;Williams et al 2009). However, in all of these cases, spillover acts at relatively small scales such that single reserves cannot sustain entire fished stocks (through spillover alone; they may be able to provide this service through larval export).…”

Section: Discussionsupporting

confidence: 74%

“…Growing evidence from theoretical models and empirical studies suggests that higher abundances inside reserves can lead to spillover of adults to nearby fished areas (Rowley 1994;Roberts et al 2001;Goni et al 2008;Kellner et al 2008;Perez-Ruzafa et al 2008). Spillover is typically observed as declining patterns of abundance or catch across reserve boundaries, although there may be no detectable pattern of decline in abundance if fishing effort is intense surrounding the reserve.…”

Section: Introductionmentioning

confidence: 99%

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Spillover from marine reserves and the replenishment of fished stocks

2009

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SUMMARYNo-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.

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Section: Discussionsupporting

confidence: 74%

Section: Introductionmentioning

confidence: 99%

Spillover from marine reserves and the replenishment of fished stocks

2009

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“…Some of the species that responded to protection with higher catches near the border, such as Dentex dentex, Mullus surmuletus, Phycis phycis, Sciaena umbra and Scorpaena porcus, are important target species of artisanal fisheries (García-Rodríguez et al 2006, Forcada 2007, Goñi et al 2008. Moreover, these species represent the highest proportion of the catch and the greatest income for artisanal fisheries (García-Rodríguez et al 2006, Forcada 2007, Goñi et al 2008.…”

Section: Discussionmentioning

confidence: 99%

“…Moreover, these species represent the highest proportion of the catch and the greatest income for artisanal fisheries (García-Rodríguez et al 2006, Forcada 2007, Goñi et al 2008. Uranoscopus scaber fished on sandy bottoms at different distances (see Fig.…”

Section: Discussionmentioning

confidence: 99%

Effects of habitat on spillover from marine protected areas to artisanal fisheries

Forcada

Valle²,

Bonhomme³

et al. 2009

Mar. Ecol. Prog. Ser.

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Marine protected areas (MPAs) potentially enhance the long-term sustainability of coastal fish resources that have been overexploited. The types and quality of habitats, both inside and outside the MPAs, may determine the likelihood of migration by fish to surrounding unprotected areas where spillover to fisheries occurs. We assessed whether MPAs enhanced catches of artisanal fisheries, using an experimental fishing study with the same fishing gear as that used by local fishers. This approach allowed us to test the hypothesis of increased catches along the borders of MPAs in comparison with those in other fishing grounds located at medium and far distances from 3 Mediterranean MPAs: Tabarca Marine Reserve, Carry-le-Rouet Marine Reserve and Cerbère-Banyuls Marine Reserve. Surveys were done over 2 homogeneous habitats (Posidonia oceanica meadow and sand), in 3 different seasons. Catches were significantly higher for some species near the borders of the MPAs when fishing on P. oceanica meadows, but not when fishing on sandy bottoms. The spillover effect appears to be limited by a lack of continuous suitable habitat through the boundaries of the MPA. Some of the species that showed a significant response to protection and concurrent higher catches near the MPA borders, such as Dentex dentex, Mullus surmuletus, Phycis phycis, Sciaena umbra and Scorpaena porcus, are target species of artisanal fisheries. Although we found that the spatial scale of the spillover-induced density gradient was localized, it was sufficient to provide local benefits to artisanal fisheries. We conclude that spillover effects are not a universal consequence of siting MPAs in temperate waters and that they are related to the distribution of habitats inside and around MPAs.

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“…For example, extensive study has demonstrated that fully protected no-take marine reserves can be important tools for protecting ecosystems from extractive activities and restoring marine habitats and species. Ecologic field studies of marine reserves have demonstrated positive effects on biologic measures (e.g., biomass and density) inside their borders (5)(6)(7) and in the adjacent fished waters (8,9). Consequently, governments and local communities are increasingly considering marine reserves or networks of reserves as a means of reducing threats to marine ecosystems.…”

mentioning

confidence: 99%

Communicating marine reserve science to diverse audiences

Grorud-Colvert

Lester

Airamé

et al. 2010

Proc. Natl. Acad. Sci. U.S.A.

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As human impacts cause ecosystem-wide changes in the oceans, the need to protect and restore marine resources has led to increasing calls for and establishment of marine reserves. Scientific information about marine reserves has multiplied over the last decade, providing useful knowledge about this tool for resource users, managers, policy makers, and the general public. This information must be conveyed to nonscientists in a nontechnical, credible, and neutral format, but most scientists are not trained to communicate in this style or to develop effective strategies for sharing their scientific knowledge. Here, we present a case study from California, in which communicating scientific information during the process to establish marine reserves in the Channel Islands and along the California mainland coast expanded into an international communication effort. We discuss how to develop a strategy for communicating marine reserve science to diverse audiences and highlight the influence that effective science communication can have in discussions about marine management.marine protected areas | science education | public outreach | communication strategy | California

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Spillover from six western Mediterranean marine protected areas: evidence from artisanal fisheries

Abstract: Species that have shown strong responses to protection are those that have moderate vagility in relation

Cited by 196 publications

References 50 publications

Spillover from marine reserves and the replenishment of fished stocks

Spillover from marine reserves and the replenishment of fished stocks

Effects of habitat on spillover from marine protected areas to artisanal fisheries

Communicating marine reserve science to diverse audiences

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