Environment and Anthropogenic Activities Influence Cetacean Habitat Use in Southeastern Brazil

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dc.contributor.ORCID0000-0002-4957-1379 (Chun, Y)
dc.contributor.VIAF297769863 (Chun, Y)
dc.contributor.authorTardin, R. H.
dc.contributor.authorChun, Yongwan
dc.contributor.authorJenkins, C. N.
dc.contributor.authorMaciel, I. S.
dc.contributor.authorSimão, S. M.
dc.contributor.authorAlves, M. A. S.
dc.contributor.utdAuthorChun, Yongwan
dc.date.accessioned2020-03-30T22:29:27Z
dc.date.available2020-03-30T22:29:27Z
dc.date.issued2019-05-09
dc.descriptionDue to copyright restrictions and/or publisher's policy full text access from Treasures at UT Dallas is limited to current UTD affiliates (use the provided Link to Article).
dc.descriptionSupplementary material is available on publisher's website. Use the DOI link below.
dc.description.abstractInvestigating the influence of coastal development on marine environments is a priority to maintain healthy seas. Cetaceans are top predators, keystone and umbrella species and thus are good candidate models to evaluate the extent of anthropogenic impacts on coastal habitats. We employed a generalized linear model with spatial eigenvector mapping (SEV-GLM) to understand the influence of environmental and anthropogenic activities on migrant (humpback whale Megaptera novaeangliae) and non-migrant (Bryde’s whale Balaenoptera brydei and common bottlenose dolphin Tursiops truncatus) cetacean habitat use off Cabo Frio, Rio de Janeiro, Brazil. We hypothesized that both environmental and anthropogenic activities influence their habitat use. Data were collected during 118 boat trips between December 2010 and June 2014. The best SEV-GLM predicted humpback whales would increase linearly with distance to coast, with minimum sea surface temperature (SST) around 19.4-19.8°C and maximum SST around 25.5-26°C, with low variations in chlorophyll a (chl a) concentrations. The model also predicted that humpback whales would occur up to 10 km from diving areas, increasing linearly with distance to fishing grounds. The best non-migrant cetacean SEV-GLM predicted that they would occur more frequently around depths from 30-60 m, increasing with low SST and high chl a concentration. For the anthropogenic component, the model predicted that non-migrant cetaceans would occur up to 10 km from fishing grounds. Our study modeled the influence of anthropogenic activities on cetaceans, and indicates specific priority areas for cetacean conservation, contributing at a local and national scale. © Inter-Research 2019
dc.description.departmentSchool of Economic, Political and Policy Sciences
dc.description.sponsorshipConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq) (No. 479348/2010-3 and Grupo Fundação Boticario de Proteção a Natureza Grant No. 0997/2013-2); Fundação de Amparo à Pesquisa do Estado do Rio de Janeiro (FAPERJ) processes E-26/100.866/2011, E-26/ 202. 803/ 2016, E-26/102.837/2012, E-26/ 201. 724/ 2015; Conselho Nacional de Pesquisa e Desenvolvimento processes 308792/2009-2, 305798/2014-6
dc.identifier.bibliographicCitationTardin, R. H., Y. Chun, C. N. Jenkins, I. S. Maciel, et al. 2019. "Environment and anthropogenic activities influence cetacean habitat use in southeastern Brazil." Marine Ecology Progress Series 616: 197-210, doi: 10.3354/meps12937
dc.identifier.issn0171-8630
dc.identifier.urihttp://dx.doi.org/10.3354/meps12937
dc.identifier.urihttps://hdl.handle.net/10735.1/7712
dc.identifier.volume616
dc.language.isoen
dc.publisherInter-Research
dc.rights©2019 Inter-Research
dc.source.journalMarine Ecology Progress Series
dc.subjectBryde whale
dc.subjectRorquals
dc.subjectCetacea
dc.subjectDelphinidae
dc.subjectMegaptera
dc.subjectHumpback whale
dc.subjectTursiops truncatus
dc.subjectBottlenose dolphin
dc.subjectEigenvectors
dc.subjectModeling
dc.subjectUpwelling (Oceanography)
dc.titleEnvironment and Anthropogenic Activities Influence Cetacean Habitat Use in Southeastern Brazil
dc.type.genrearticle

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