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Seal and polar bear behavioral response to an icebreaker vessel in northwest Greenland

dc.contributor.authorLomac-MacNair, Kate
dc.contributor.authorAndrade, José Pedro
dc.contributor.authorEsteves, Eduardo
dc.date.accessioned2020-07-24T10:51:37Z
dc.date.available2020-07-24T10:51:37Z
dc.date.issued2019-12
dc.description.abstractIcebreaker vessels are important scientific tools, enabling access and research within the polar regions of the world, including the High Arctic. These vessels have the potential to overlap with marine mammal habitats in infrequently studied areas. Marine mammal behavioral responses to icebreaker vessel presence and distance at which responses occur are not well documented or understood. During the Petermann 2015 Expedition on the icebreaker Oden, seal and polar bear (Ursus maritimus) data were collected in Petermann Fjord (Northwest Greenland), the adjacent Nares Strait region, and transit to and from Thule, Greenland over 31 days (July 30 to August 30, 2015). We examined behavioral responses from 4 pinniped species: bearded seal (Erignathus barbatus), ringed seal (Pusa hispida), harp seal (Pagophilus groenlandicus), and hooded seal (Crystophora cristata), as well as the polar bear to an icebreaker vessel in a rarely studied region of northwest Greenland. We investigated the rate of flush response, entering the water from a previously hauled out (i.e., resting) location on ice in relation to seal distance to the vessel. Our results showed a significant difference (independent t-test, P <= 0.001) between seal distance to the vessel when a flush response occurred (mean = 467.1 m, SD = 212.39 m) and when no flush response occurred (mean = 1334.0 m, SD = 433.89 m). There were fewer flush responses by seals to the icebreaker at distances >600 m and no flush responses by seals to the icebreaker at distances >800 m. We used a logistic model to describe the relationship between the proportion of seals that flushed and distance from the icebreaker. Results of the logistical model showed the estimated distance at which 50% of the seals flushed to be 709.45 m (SE = 9.24, t = 76.8, P < 0.0001). Three polar bears were recorded during the transit, and a behavioral response (e.g., look, approach, move away) was recorded for all 3 sightings. Our preliminary findings are relevant to assess potential impacts of increasing vessel activity in the High Arctic and to assist in the development of effective monitoring and mitigation strategies.
dc.identifier.issn1934-4392
dc.identifier.issn1936-8046
dc.identifier.issn1934-4392
dc.identifier.urihttp://hdl.handle.net/10400.1/14250
dc.language.isoeng
dc.peerreviewedyes
dc.publisherJack H Berryman Inst
dc.subjectHarbor seals
dc.subjectUrsus-maritimus
dc.subjectHabitat use
dc.subjectIce
dc.subjectConservation
dc.subjectDisturbance
dc.subjectImpacts
dc.subjectShelf
dc.titleSeal and polar bear behavioral response to an icebreaker vessel in northwest Greenland
dc.typejournal article
dspace.entity.typePublication
oaire.citation.endPage289
oaire.citation.issue2
oaire.citation.startPage277
oaire.citation.titleHuman Wildlife Interactions
oaire.citation.volume13
person.familyNameAndrade
person.familyNameEsteves
person.givenNameJose
person.givenNameEduardo
person.identifier.ciencia-idD514-1A21-F020
person.identifier.ciencia-idC81D-666A-FF24
person.identifier.orcid0000-0002-5482-9776
person.identifier.orcid0000-0002-1872-8185
person.identifier.ridE-9582-2012
person.identifier.scopus-author-id7201722097
person.identifier.scopus-author-id7003885183
rcaap.rightsrestrictedAccess
rcaap.typearticle
relation.isAuthorOfPublication8f1ffbdc-85aa-4342-8bd8-61eb6d6be74e
relation.isAuthorOfPublicationaa7fd030-1bcb-4f16-83ad-508346a35f97
relation.isAuthorOfPublication.latestForDiscoveryaa7fd030-1bcb-4f16-83ad-508346a35f97

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