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dc.contributor.authorMendo, Tania
dc.contributor.authorMendo, J.
dc.contributor.authorRansijn, Janneke
dc.contributor.authorGomez, I.
dc.contributor.authorGil-Kodaka, P.
dc.contributor.authorFernández, J.
dc.contributor.authorDelgado, R.
dc.contributor.authorTravezaño, M.
dc.contributor.authorArroyo, R.
dc.contributor.authorLoza, K.
dc.contributor.authorMcCann, Paddy
dc.contributor.authorCrowe, S.
dc.contributor.authorJones, E.
dc.contributor.authorJames, Mark Andrew
dc.identifier.citationMendo , T , Mendo , J , Ransijn , J , Gomez , I , Gil-Kodaka , P , Fernández , J , Delgado , R , Travezaño , M , Arroyo , R , Loza , K , McCann , P , Crowe , S , Jones , E & James , M A 2022 , ' Assessing discards in an illegal small-scale fishery using fisher-led reporting ' , Reviews in Fish Biology and Fisheries , vol. Online First .
dc.identifier.otherPURE: 278369923
dc.identifier.otherPURE UUID: 7ec04050-1f42-4dfd-a952-494b29f1c224
dc.identifier.otherWOS: 000773818400002
dc.identifier.otherScopus: 85127254748
dc.descriptionFunding: Newton Fund (IL 2018-Grant Agreement 414695818 James PER), Fondo Nacional de Desarrollo Científico, Tecnológico y de Innovación Tecnológica (PE) (FONDECYT 2018-222).en
dc.description.abstractAbout a third of all marine fish in the world are caught in Small-Scale Fisheries (SSF). SSF are increasingly recognised as essential for food security and livelihoods for vulnerable and economically fragile communities globally. Although individual SSF vessels are usually perceived as having little impact on the ecosystem, the cumulative impact of gear type and number of vessels may be substantial. Bottom trawling is a common fishing method that can greatly influence the marine ecosystem by damaging the seafloor and generating high levels of discards. However, appropriate sampling coverage using on-board observer programmes to collect these data from SSF are rare, as they are expensive and pose logistical constraints. A mobile App was used to assess whether self-reporting by fishers could provide reliable fine-scale information on fishing effort and discards over time in an illegal shrimp trawling fishery in northern Peru. Maps depicting the spatial distribution of trawling effort and the proportion of discards from observers and fishers were compared using the Similarity in Means (SIM) Index, which ranges from 0 when spatial patterns differ completely to 1 when spatial patterns are very similar. High levels of agreement between spatio-temporal patterns of effort (SIM Index = 0.81) and discards (0.96) were found between fisher and observer maps. Moreover, far greater spatial coverage was accomplished by fishers, suggesting that self-reporting via an App represents a useful approach to collect reliable fisheries data as an initial step for effective monitoring and management of these fisheries.
dc.relation.ispartofReviews in Fish Biology and Fisheriesen
dc.rightsCopyright © The Author(s) 2022. This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit
dc.subjectMobile applicationen
dc.subjectBlue agendaen
dc.subjectQA75 Electronic computers. Computer scienceen
dc.subjectGC Oceanographyen
dc.subjectSH Aquaculture. Fisheries. Anglingen
dc.subjectSDG 2 - Zero Hungeren
dc.subjectSDG 14 - Life Below Wateren
dc.titleAssessing discards in an illegal small-scale fishery using fisher-led reportingen
dc.typeJournal itemen
dc.description.versionPublisher PDFen
dc.contributor.institutionUniversity of St Andrews. Coastal Resources Management Groupen
dc.contributor.institutionUniversity of St Andrews. School of Biologyen
dc.contributor.institutionUniversity of St Andrews. Scottish Oceans Instituteen
dc.contributor.institutionUniversity of St Andrews. Sea Mammal Research Uniten
dc.contributor.institutionUniversity of St Andrews. University of St Andrewsen
dc.contributor.institutionUniversity of St Andrews. Marine Alliance for Science & Technology Scotlanden
dc.description.statusPeer revieweden

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