Identificador persistente para citar o vincular este elemento: http://hdl.handle.net/10553/113783
Título: The Influence of Boundary Habitat Continuity on Spillover from a Mediterranean Marine Protected Area
Autores/as: Pinillos, F
Riera Elena, Rodrigo 
Clasificación UNESCO: 310504 Protección de los peces
Palabras clave: Marine reserve
Underwater visual census
Fish biomass
Biodiversity
French coast
Fecha de publicación: 2022
Proyectos: The European Community—ASSEMBLE grant agreement nº. 227799
Publicación seriada: Thalassas 
Resumen: The effectiveness of marine protected areas (MPAs) to restore populations of exploited species, both within and outside of their boundaries through net movement of individuals (“spillover”), can potentially be affected by continuity of habitats across the boundaries. Sandy seabeds may reduce movement of reef-associated species across MPA boundaries, thereby increasing the ‘reserve effect’ while decreasing spillover. Underwater visual censuses were undertaken inside the Cerbère-Banyuls Marine Reserve (CBMR) (France) and adjacent non-protected areas to assess the influence of habitat on spillover. Total fish biomass and mean fish size were significantly higher within the MPA, but rapidly declined across the reserve boundary. Nevertheless, there was no indication of a sharper decline in biomass at the northern boundary where a habitat discontinuity was present relative to the southern boundary with continuous habitat. This result may reflect a number of complicating factors that make assessment of spillover potential difficult, and which may also lead to the uncertainty about which situations and how much spillover may contribute to fished populations outside reserves. In particular, the home range area of the key exploited species relative to the scale of the habitat mosaic, and potentially different levels of fishing pressure at each boundary likely contribute to variability. While the CBMR appeared particularly well-suited to investigating this question, resolving these issues and identifying general principles for where and how much spillover occurs will likely be difficult without a series of specially designed MPAs. This highlights a conundrum facing MPA establishment in the face of pressures to be successful for both biodiversity conservation and to offer fisheries benefits—the latter are clearly not ubiquitous, but a shortage of suitable MPAs that can be used as scientific tools for better understanding how and when these benefits may occur is precluded by a general lack of MPAs designed and managed for this purpose. The results of this study do, however, clearly highlight the biodiversity conservation benefits of the CBMR.
URI: http://hdl.handle.net/10553/113783
ISSN: 0212-5919
DOI: 10.1007/s41208-022-00396-7
Fuente: Thalassas [ISSN 0212-5919], v. 38, p. 687–696
Colección:Artículos
Adobe PDF (1,57 MB)
Vista completa

Citas SCOPUSTM   

2
actualizado el 24-mar-2024

Visitas

60
actualizado el 13-ene-2024

Descargas

24
actualizado el 13-ene-2024

Google ScholarTM

Verifica

Altmetric


Comparte



Exporta metadatos



Los elementos en ULPGC accedaCRIS están protegidos por derechos de autor con todos los derechos reservados, a menos que se indique lo contrario.