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Title

Marine protected areas are more effective but less reliable in protecting fish biomass than fish diversity

AuthorsSanabria Fernández, José Antonio; Alday, Josu G.; Lazzari, Natali; Riera, Rodrigo; Becerro, Mikel
KeywordsMPA efficiency
Higher carnivores
IUCN Red List
Protection benefits
Threatened species
Vulnerability
Issue Date2019
PublisherElsevier
CitationMarine Pollution Bulletin 143 : 24-32 (2019)
AbstractMarine protected areas (MPAs) provide multiple conservation benefits, thus raising the question of how good and consistent they are at their roles. Here, we quantified three components, namely, diversity, biomass, and other relevant variables, in numerous protected and unprotected areas across four marine ecoregions in southwestern Europe. We created a “global conservation status index” (CSIglobal) as the sum of CSIdiversity, CSIbiomass, and CSIrelevant. We then tested whether CSI and its three components varied as a function of protection and marine ecoregion. MPA efficiency, defined as the effect size of protection on CSIglobal, was unreliable and varied with geography. CSIbiomass and CSIrelevant contributed to the unreliability of MPA efficiency, while CSIdiversity was reliable. CSIbiomass showed the major efficiency in protected areas (60%). Biomass of threatened species was the single largest variable that contributed to MPA efficiency. Our easy-to-use approach can identify high- and lowefficient MPAs and help to clarify their actual roles.
DescriptionEste artículo contiene 9 páginas, 6 figuras, 3 tablas.
Publisher version (URL)https://doi.org/10.1016/j.marpolbul.2019.04.015
URIhttp://hdl.handle.net/10261/180696
ISSN0025-326X
E-ISSN1879-3363
Appears in Collections:(CEAB) Artículos
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