Daytime dive characteristics from six short-finned pilot whales Globicephala macrorhynchus off Madeira Island
Autor(a) principal: | |
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Data de Publicação: | 2013 |
Outros Autores: | , , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
Texto Completo: | http://hdl.handle.net/10400.3/3288 |
Resumo: | Six time-depth recorders attached with suction-cups were deployed in resident and transient adult short-finned pilot whales to evaluate their daytime diving characteristics in their preferred habitat area off Madeira Island. Here, data on the proportion of time spent at the surface and at different dive phases (descent, bottom and ascent), dive depths and dive rates are presented. With mean attachment durations of 2 h 31 min (SD=2 h), the whales spent a considerable amount of time at the surface (mean=76.3%, SD=18.6) and presented a low diving rate (mean=6.8 dives h‾¹, SD=6.1; considering dive as submergence deeper than 10 m). The maximum dive depth recorded in this study was 988 m, and dives deeper than 500 m, which were recorded from resident and transient whales, suggest foraging activity along their preferred habitat area. The analysis of dives deeper than 100 m shows that the percentage of time spent on descent, bottom or ascent varied between dives, with means of ~40, 30 and 30%, respectively. |
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Daytime dive characteristics from six short-finned pilot whales Globicephala macrorhynchus off Madeira IslandBiologgersDive ProfileMarine MammalNE AtlanticTDRsSix time-depth recorders attached with suction-cups were deployed in resident and transient adult short-finned pilot whales to evaluate their daytime diving characteristics in their preferred habitat area off Madeira Island. Here, data on the proportion of time spent at the surface and at different dive phases (descent, bottom and ascent), dive depths and dive rates are presented. With mean attachment durations of 2 h 31 min (SD=2 h), the whales spent a considerable amount of time at the surface (mean=76.3%, SD=18.6) and presented a low diving rate (mean=6.8 dives h‾¹, SD=6.1; considering dive as submergence deeper than 10 m). The maximum dive depth recorded in this study was 988 m, and dives deeper than 500 m, which were recorded from resident and transient whales, suggest foraging activity along their preferred habitat area. The analysis of dives deeper than 100 m shows that the percentage of time spent on descent, bottom or ascent varied between dives, with means of ~40, 30 and 30%, respectively.Universidade dos AçoresRepositório da Universidade dos AçoresAlves, Filipe M. A.Dinis, AnaRibeiro, CláudiaNicolau, CátiaKaufmann, ManfredFortuna, Caterina M.Freitas, Luís2015-01-30T13:24:47Z20132013-01-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10400.3/3288eng"ARQUIPÉLAGO. Life and Marine Sciences". ISSN 0873-4704. Nº 31 (2014): 1-8.0873-4704info:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2022-12-20T14:31:19Zoai:repositorio.uac.pt:10400.3/3288Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T16:25:54.327688Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse |
dc.title.none.fl_str_mv |
Daytime dive characteristics from six short-finned pilot whales Globicephala macrorhynchus off Madeira Island |
title |
Daytime dive characteristics from six short-finned pilot whales Globicephala macrorhynchus off Madeira Island |
spellingShingle |
Daytime dive characteristics from six short-finned pilot whales Globicephala macrorhynchus off Madeira Island Alves, Filipe M. A. Biologgers Dive Profile Marine Mammal NE Atlantic TDRs |
title_short |
Daytime dive characteristics from six short-finned pilot whales Globicephala macrorhynchus off Madeira Island |
title_full |
Daytime dive characteristics from six short-finned pilot whales Globicephala macrorhynchus off Madeira Island |
title_fullStr |
Daytime dive characteristics from six short-finned pilot whales Globicephala macrorhynchus off Madeira Island |
title_full_unstemmed |
Daytime dive characteristics from six short-finned pilot whales Globicephala macrorhynchus off Madeira Island |
title_sort |
Daytime dive characteristics from six short-finned pilot whales Globicephala macrorhynchus off Madeira Island |
author |
Alves, Filipe M. A. |
author_facet |
Alves, Filipe M. A. Dinis, Ana Ribeiro, Cláudia Nicolau, Cátia Kaufmann, Manfred Fortuna, Caterina M. Freitas, Luís |
author_role |
author |
author2 |
Dinis, Ana Ribeiro, Cláudia Nicolau, Cátia Kaufmann, Manfred Fortuna, Caterina M. Freitas, Luís |
author2_role |
author author author author author author |
dc.contributor.none.fl_str_mv |
Repositório da Universidade dos Açores |
dc.contributor.author.fl_str_mv |
Alves, Filipe M. A. Dinis, Ana Ribeiro, Cláudia Nicolau, Cátia Kaufmann, Manfred Fortuna, Caterina M. Freitas, Luís |
dc.subject.por.fl_str_mv |
Biologgers Dive Profile Marine Mammal NE Atlantic TDRs |
topic |
Biologgers Dive Profile Marine Mammal NE Atlantic TDRs |
description |
Six time-depth recorders attached with suction-cups were deployed in resident and transient adult short-finned pilot whales to evaluate their daytime diving characteristics in their preferred habitat area off Madeira Island. Here, data on the proportion of time spent at the surface and at different dive phases (descent, bottom and ascent), dive depths and dive rates are presented. With mean attachment durations of 2 h 31 min (SD=2 h), the whales spent a considerable amount of time at the surface (mean=76.3%, SD=18.6) and presented a low diving rate (mean=6.8 dives h‾¹, SD=6.1; considering dive as submergence deeper than 10 m). The maximum dive depth recorded in this study was 988 m, and dives deeper than 500 m, which were recorded from resident and transient whales, suggest foraging activity along their preferred habitat area. The analysis of dives deeper than 100 m shows that the percentage of time spent on descent, bottom or ascent varied between dives, with means of ~40, 30 and 30%, respectively. |
publishDate |
2013 |
dc.date.none.fl_str_mv |
2013 2013-01-01T00:00:00Z 2015-01-30T13:24:47Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://hdl.handle.net/10400.3/3288 |
url |
http://hdl.handle.net/10400.3/3288 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
"ARQUIPÉLAGO. Life and Marine Sciences". ISSN 0873-4704. Nº 31 (2014): 1-8. 0873-4704 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
Universidade dos Açores |
publisher.none.fl_str_mv |
Universidade dos Açores |
dc.source.none.fl_str_mv |
reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação instacron:RCAAP |
instname_str |
Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
instacron_str |
RCAAP |
institution |
RCAAP |
reponame_str |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
collection |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
repository.name.fl_str_mv |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
repository.mail.fl_str_mv |
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1799130710640951296 |