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dc.contributor.authorAllen, Simon J.
dc.contributor.authorPollock, Kenneth H.
dc.contributor.authorBouchet, Phil J.
dc.contributor.authorKobryn, Halina T.
dc.contributor.authorMcElligott, Deirdre B.
dc.contributor.authorNicholson, Krista E.
dc.contributor.authorSmith, Joshua N.
dc.contributor.authorLoneragan, Neil R.
dc.date.accessioned2019-12-23T12:30:06Z
dc.date.available2019-12-23T12:30:06Z
dc.date.issued2017-07-10
dc.identifier264696825
dc.identifierb29f0fe0-2fe7-42eb-b44d-aba4eaa4d882
dc.identifier000405180900068
dc.identifier85023189371
dc.identifier.citationAllen , S J , Pollock , K H , Bouchet , P J , Kobryn , H T , McElligott , D B , Nicholson , K E , Smith , J N & Loneragan , N R 2017 , ' Preliminary estimates of the abundance and fidelity of dolphins associating with a demersal trawl fishery ' , Scientific Reports , vol. 7 , 4995 . https://doi.org/10.1038/s41598-017-05189-0en
dc.identifier.issn2045-2322
dc.identifier.otherORCID: /0000-0002-2144-2049/work/66398489
dc.identifier.urihttps://hdl.handle.net/10023/19196
dc.description.abstractThe incidental capture of wildlife in fishing gear presents a global conservation challenge. As a baseline to inform assessments of the impact of bycatch on bottlenose dolphins (Tursiops truncatus) interacting with an Australian trawl fishery, we conducted an aerial survey to estimate dolphin abundance across the fishery. Concurrently, we carried out boat-based dolphin photo-identification to assess short-term fidelity to foraging around trawlers, and used photographic and genetic data to infer longer-term fidelity to the fishery. We estimated abundance at approximate to 2,300 dolphins (95% CI = 1,247-4,214) over the ≈ 25,880-km2 fishery. Mark-recapture estimates yielded 226 (SE = 38.5) dolphins associating with one trawler and some individuals photographed up to seven times over 12 capture periods. Moreover, photographic and genetic re-sampling over three years confirmed that some individuals show longterm fidelity to trawler-associated foraging. Our study presents the first abundance estimate for any Australian pelagic dolphin community and documents individuals associating with trawlers over days, months and years. Without trend data or correction factors for dolphin availability, the impact of bycatch on this dolphin population's conservation status remains unknown. These results should be taken into account by management agencies assessing the impact of fisheries-related mortality on this protected species.
dc.format.extent11
dc.format.extent2468712
dc.language.isoeng
dc.relation.ispartofScientific Reportsen
dc.subjectBottle-nosed dolphinsen
dc.subjectPopulation viability analysisen
dc.subjectTursiops-truncatusen
dc.subjectMarine mammalsen
dc.subjectAerial surveysen
dc.subjectCoastalen
dc.subjectBycatchen
dc.subjectSeaen
dc.subjectCommonen
dc.subjectManagementen
dc.subjectGC Oceanographyen
dc.subjectQH301 Biologyen
dc.subjectNDASen
dc.subjectSDG 14 - Life Below Wateren
dc.subject.lccGCen
dc.subject.lccQH301en
dc.titlePreliminary estimates of the abundance and fidelity of dolphins associating with a demersal trawl fisheryen
dc.typeJournal articleen
dc.contributor.institutionUniversity of St Andrews. School of Mathematics and Statisticsen
dc.contributor.institutionUniversity of St Andrews. Centre for Research into Ecological & Environmental Modellingen
dc.identifier.doi10.1038/s41598-017-05189-0
dc.description.statusPeer revieweden


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