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The waters of São Tomé: a calving ground for West African humpback whales?

2011Journal article Open Access
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dc.contributor.authorCarvalho, Inês
dc.contributor.authorBrito, C.
dc.contributor.authordos Santos, M. E.
dc.contributor.authorRosenbaum, H. C.
dc.date.accessioned2018-12-07T14:58:32Z
dc.date.available2018-12-07T14:58:32Z
dc.date.issued2011
dc.description.abstractIn the Southern Hemisphere, humpback whales Megaptera novaeangliae feed in Antarctic waters during the austral summer and migrate to their breeding grounds in subtropical and tropical waters during the winter. Historical whaling records suggest that the Archipelago of Sao Tome and Principe, located in the Gulf of Guinea, serves as a possible breeding ground. In order to investigate the temporal occurrence and group composition of humpback whales around Sao Tome Island, annual surveys were conducted during the breeding season between 2002 and 2006. A total of 186 boat-based surveys took place during this period. Data collected during each sighting included geographical positions, group size, group composition and behavioural classifications. Of the 66 groups encountered, mother/calf pairs made up a large proportion (65.15%), followed by solitary individuals (15.15%). Mother/calf pairs were seen in the region into November and resightings of identified animals indicate periods of occupancy that extended over three weeks. Few behaviours typically associated with mating activity were observed. Given the high percentage of mother/calf pairs, sometimes with very young calves, and the low frequency of mating activity, the waters of Sao Tome may primarily serve as a calving and nursing or resting area for humpback whales.
dc.description.sponsorshipProjecto Delfim; Rolas Island Resort; ECOFAC (Conservation et utilisation rationnelle des Ecosystemes Forestiers en Afrique Centrale); Wildlife Conservation Society;
dc.identifier.doi10.2989/1814232X.2011.572353
dc.identifier.issn1814-232X
dc.identifier.urihttp://hdl.handle.net/10400.1/12074
dc.language.isoeng
dc.peerreviewedyes
dc.publisherNatl Inquiry Services Centre Pty Ltd
dc.relationESTRUTURA DA POPULAÇÃO DAS BALEIAS CORCUNDAS MEGAPTERA NOVAEANGLIAE NA COSTA OCIDENTAL DA ÁFRICA
dc.subjectMegaptera-Novaeangliae
dc.subjectPopulation-structure
dc.subjectWintering grounds
dc.subjectBreeding grounds
dc.subjectNorth Pacific
dc.subjectOrcinus-Orca
dc.subjectAtlantic
dc.subjectMovements
dc.subjectSegregation
dc.subjectArchipelago
dc.titleThe waters of São Tomé: a calving ground for West African humpback whales?
dc.typejournal article
dspace.entity.typePublication
oaire.awardTitleESTRUTURA DA POPULAÇÃO DAS BALEIAS CORCUNDAS MEGAPTERA NOVAEANGLIAE NA COSTA OCIDENTAL DA ÁFRICA
oaire.awardURIinfo:eu-repo/grantAgreement/FCT//SFRH%2FBD%2F18049%2F2004/PT
oaire.citation.endPage97
oaire.citation.issue1
oaire.citation.startPage91
oaire.citation.titleAfrican Journal of Marine Science
oaire.citation.volume33
person.familyNameCarvalho
person.givenNameInês
person.identifier.ciencia-idCE1C-3353-6585
person.identifier.orcid0000-0002-4641-8037
person.identifier.ridE-9270-2012
person.identifier.scopus-author-id36117492800
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.nameFundação para a Ciência e a Tecnologia
rcaap.rightsopenAccess
rcaap.typearticle
relation.isAuthorOfPublication009e28dd-f076-49e9-910f-61e67fbfecf5
relation.isAuthorOfPublication.latestForDiscovery009e28dd-f076-49e9-910f-61e67fbfecf5
relation.isProjectOfPublication311dab0f-9c6b-4998-91da-527b67707735
relation.isProjectOfPublication.latestForDiscovery311dab0f-9c6b-4998-91da-527b67707735

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