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dc.contributor.authorHarris, Danielle V.
dc.contributor.authorMiksis-Olds, Jennifer L.
dc.contributor.authorVernon, Julia A.
dc.contributor.authorThomas, Len
dc.identifier.citationHarris , D V , Miksis-Olds , J L , Vernon , J A & Thomas , L 2018 , ' Fin whale density and distribution estimation using acoustic bearings derived from sparse arrays ' , Journal of the Acoustical Society of America , vol. 143 , no. 5 , pp. 2980-2993 .
dc.identifier.otherPURE: 253233401
dc.identifier.otherPURE UUID: 455d7d83-9884-44ef-bd20-00088999df76
dc.identifier.otherScopus: 85047240179
dc.identifier.otherORCID: /0000-0002-7436-067X/work/45366204
dc.identifier.otherWOS: 000433050700061
dc.identifier.otherORCID: /0000-0003-1447-1420/work/61370043
dc.descriptionD.V.H. and L.T. were funded by the Office of Naval Research (Grant Nos. N00014-14-1-0394 and N00014-16-1-2364). J.L.M.O. and J.A.V. were funded under Grant Nos. N00014-14-1-0397 and N00014-16-1-2860 also from the Office of Naval Research.en
dc.description.abstractPassive acoustic monitoring of marine mammals is common, and it is now possible to estimate absolute animal density from acoustic recordings. The most appropriate density estimation method depends on how much detail about animals' locations can be derived from the recordings. Here, a method for estimating cetacean density using acoustic data is presented, where only horizontal bearings to calling animals are estimable. This method also requires knowledge of call signal-to-noise ratios, as well as auxiliary information about call source levels, sound propagation, and call production rates. Results are presented from simulations, and from a pilot study using recordings of fin whale (Balaenoptera physalus) calls from Comprehensive Nuclear-Test-Ban Treaty Organization (CTBTO) hydrophones at Wake Island in the Pacific Ocean. Simulations replicating different animal distributions showed median biases in estimated call density of less than 2%. The estimated average call density during the pilot study period (December 2007-February 2008) was 0.02 calls hr-1 km2 (coefficient of variation, CV: 15%). Using a tentative call production rate, estimated average animal density was 0.54 animals/1000 km2 (CV: 52%). Calling animals showed a varied spatial distribution around the northern hydrophone array, with most detections occurring at bearings between 90 and 180 degrees.
dc.relation.ispartofJournal of the Acoustical Society of Americaen
dc.rights© 2018, Acoustical Society of America. This work has been made available online in accordance with the publisher's policies. This is the author created accepted version manuscript following peer review and as such may differ slightly from the final published version. The final published version of this work is available at
dc.subjectQH301 Biologyen
dc.subjectArts and Humanities (miscellaneous)en
dc.subjectAcoustics and Ultrasonicsen
dc.titleFin whale density and distribution estimation using acoustic bearings derived from sparse arraysen
dc.typeJournal articleen
dc.contributor.institutionUniversity of St Andrews.School of Mathematics and Statisticsen
dc.contributor.institutionUniversity of St Andrews.Sea Mammal Research Uniten
dc.contributor.institutionUniversity of St Andrews.Centre for Research into Ecological & Environmental Modellingen
dc.contributor.institutionUniversity of St Andrews.Marine Alliance for Science & Technology Scotlanden
dc.description.statusPeer revieweden

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