Defining risk variables causing gas embolism in loggerhead sea turtles (Caretta caretta) caught in trawls and gillnets

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dc.contributor.authorFahlman, Andreas
dc.contributor.authorCrespo Fajardo, Jose Luis
dc.contributor.authorSterba-Boatwright, Blair
dc.contributor.authorStacy, Brian
dc.contributor.authorGarcia Parraga, Daniel
dc.creator.orcidhttps://orcid.org/0000-0002-8675-6479en_US
dc.creator.orcidhttps://orcid.org/0000-0003-0429-2170en_US
dc.creator.orcidhttps://orcid.org/0000-0002-8675-6479
dc.creator.orcidhttps://orcid.org/0000-0003-0429-2170
dc.date.accessioned2022-10-05T18:26:12Z
dc.date.available2022-10-05T18:26:12Z
dc.date.issued2017-06-01
dc.description.abstractIncidental capture, or ‘bycatch’ in fishing gear is a major global threat to sea turtle populations. A recent study showed that underwater entrapment in fishing gear followed by rapid decompression may cause gas bubble formation within the blood stream (embolism) and tissues leading to organ injury, impairment, and even mortality in some bycaught individuals. We analyzed data from 128 capture events using logistic and ordinal regression to examine risk factors associated with gas embolism in sea turtles captured in trawls and gillnets. Likelihood of fatal decompression increases with increasing depth of gear deployment. A direct relationship was found between depth, risk and severity of embolism, which has not been previously demonstrated in any breath-hold diving species. For the trawl fishery in this study, an average trawl depth of 65 m was estimated to result in 50% mortality in by-caught turtles throughout the year. This finding is critical for a more accurate estimation of sea turtle mortality rates resulting from different fisheries and for devising efforts to avoid or minimize the harmful effects of capture.en_US
dc.identifier.citationFahlman, A., Crespo-Picazo, J.L., Sterba-Boatwright, B. et al. Defining risk variables causing gas embolism in loggerhead sea turtles (Caretta caretta) caught in trawls and gillnets. Sci Rep 7, 2739 (2017). https://doi.org/10.1038/s41598-017-02819-5en_US
dc.identifier.doihttps://doi.org/10.1038/s41598-017-02819-5
dc.identifier.urihttps://hdl.handle.net/1969.6/94062
dc.language.isoen_USen_US
dc.rightsAttribution 4.0 International*
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/*
dc.subjectgas embolismen_US
dc.subjectloggerhead sea turtlesen_US
dc.subjecttrawlsen_US
dc.subjectgillnetsen_US
dc.subjectrisk variablesen_US
dc.titleDefining risk variables causing gas embolism in loggerhead sea turtles (Caretta caretta) caught in trawls and gillnetsen_US
dc.typeArticleen_US

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