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dc.contributor.authorMangel, Jeffrey Charles
dc.contributor.authorOrtiz, N
dc.contributor.authorWang, J
dc.contributor.authorAlfaro-Shigueto, J
dc.contributor.authorPingo, S
dc.contributor.authorJimenez, A
dc.contributor.authorSuarez, T
dc.contributor.authorSwimmer, Y
dc.contributor.authorCarvalho, F
dc.contributor.authorGodley, BJ
dc.date.accessioned2016-01-14T15:56:51Z
dc.date.accessioned2016-03-15T09:45:59Z
dc.date.issued2016
dc.description.abstractGillnet fisheries exist throughout the oceans and have been implicated in high bycatch rates of sea turtles. In this study, we examined the effectiveness of illuminating nets with light-emitting diodes (LEDs), placed on floatlines in order to reduce sea turtle bycatch in a small-scale bottom-set gillnet fishery. In Sechura Bay, Northern Peru, 114 pairs of control and illuminated nets were deployed. The predicted mean Catch Per Unit of Effort (CPUE) of target species, standardized for environmental variables using generalized additive model analysis, was similar for both control and illuminated nets. In contrast, the predicted mean CPUE of green turtles (Chelonia mydas) was reduced by 63.9% in illuminated nets. One hundred twenty-five green turtles were caught in control nets while 62 were caught in illuminated nets. This statistically significant reduction (GAM analysis, p<0.05) in sea turtle bycatch suggests that net illumination could be an effective conservation tool. Challenges to implementing the use of LEDs include equipment costs, increased net handling times, and limited awareness among fishermen regarding the effectiveness of this technology. Cost estimates for preventing a single sea turtle catch are as low as $34 USD, while the costs to outfit the entire gillnet fishery in Sechura Bay can be as low as $9200 USD. Understanding these cost challenges emphasizes the need for institutional support from national ministries, international non-governmental organizations and the broader fisheries industry to make possible widespread implementation of net illumination as a sea turtle bycatch reduction strategy.en_GB
dc.description.sponsorshipProDelphinusen_GB
dc.description.sponsorshipDarwin Initiativeen_GB
dc.description.sponsorshipNational Marine Fisheries Service of the National Oceanic and Atmospheric Administrationen_GB
dc.description.sponsorshipUniversity of Hawaii Joint Institute for Marine and Atmospheric Researchen_GB
dc.identifier.doi10.3354/meps11610
dc.identifier.urihttp://hdl.handle.net/10871/20720
dc.language.isoenen_GB
dc.publisherInter Researchen_GB
dc.rights.embargoreasonPublisher Policyen_GB
dc.subjectLEDsen_GB
dc.subjectgreen turtlesen_GB
dc.subjectCPUEen_GB
dc.subjectsmall-scale fisheryen_GB
dc.subjectbycatchen_GB
dc.subjectPeruen_GB
dc.titleReducing green turtle bycatch in small-scale fisheries using illuminated gillnets: The Cost of Saving a Sea Turtleen_GB
dc.typeArticleen_GB
dc.identifier.issn0171-8630
dc.descriptionThis is the author accepted manuscript. The final version is available from the publisher via the DOI in this record.
dc.identifier.journalMarine Ecology Progress Seriesen_GB


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