The use of fishers' knowledge to assess benthic resource abundance across management regimes in Chilean artisanal fisheries

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dc.contributor.authorGarmendia, Vladimir
dc.contributor.authorSubida, Maria Dulce
dc.contributor.authorAguilar, Ainara
dc.contributor.authorFernandez, Miriam
dc.date.accessioned2025-01-20T22:18:49Z
dc.date.available2025-01-20T22:18:49Z
dc.date.issued2021
dc.description.abstractGlobally, marine fisheries remain largely unassessed, particularly small-scale fisheries in developing countries. Fishers' knowledge has proven to be valuable to help fill gaps of information in otherwise unassessed fisheries. This study tested the reliability of fishers' knowledge to estimate the abundance of two benthic resources, locos (Concholepas concholepas) and keyhole limpets (Fissurella spp.), across two management regimes, territorial user rights for fisheries (TURF) and open access areas (OAA), over similar to 500 km of coastline in central Chile. Fishers' knowledge (FK) was quantified using systematic interviews and compared to direct assessments (DA). Additionally, resource abundance was compared between the fishing regimes, considering regions with different concentration of TURFs (and consequently different availability of OAAs). The results show that abundances estimated by the two methods were highly consistent for the most valuable resource (the loco) and quite reliable for the keyhole limpet (for 67% of the comparisons). Abundances of both resources were higher in TURFs than in OAAs, a pattern detected by both FK and DA. The results clearly show the potential of this approach to be applied for the Chilean benthic fisheries over large scales. Interestingly, the results also show significantly lower abundance of locos in OAAs than in TURFs at coves immersed in zones with low availability of open access fishing grounds, suggesting the influence of effort displacement after the implementation of TURFs. This ancillary result highlights the need for seascape management plans that consider the potential, unintended effects of TURFs on resources beyond their boundaries. These findings are of both local and global interest, supporting the use of FK to inform management in unassessed small-scale fisheries.
dc.description.funderFONDECYT
dc.fuente.origenWOS
dc.identifier.doi10.1016/j.marpol.2021.104425
dc.identifier.eissn1872-9460
dc.identifier.issn0308-597X
dc.identifier.urihttps://doi.org/10.1016/j.marpol.2021.104425
dc.identifier.urihttps://repositorio.uc.cl/handle/11534/94579
dc.identifier.wosidWOS:000663338400001
dc.language.isoen
dc.revistaMarine policy
dc.rightsacceso restringido
dc.subjectFishers' perception
dc.subjectCatch per unit of effort
dc.subjectTerritorial user rights
dc.subjectEffort displacement
dc.subjectSmall-scale fisheries
dc.subjectShellfish
dc.subject.ods14 Life Below Water
dc.subject.ods15 Life on Land
dc.subject.odspa14 Vida submarina
dc.subject.odspa15 Vida de ecosistemas terrestres
dc.titleThe use of fishers' knowledge to assess benthic resource abundance across management regimes in Chilean artisanal fisheries
dc.typeartículo
dc.volumen127
sipa.indexWOS
sipa.trazabilidadWOS;2025-01-12
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