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dc.contributor.author
Davis, R. W.  
dc.contributor.author
David, J. H. M.  
dc.contributor.author
Meyer, M.  
dc.contributor.author
Sekiguchi, K.  
dc.contributor.author
Best, P.  
dc.contributor.author
Dassis, Mariela  
dc.contributor.author
Rodriguez, Diego Horacio  
dc.date.available
2018-01-31T19:42:12Z  
dc.date.issued
2014-09  
dc.identifier.citation
Davis, R. W.; David, J. H. M.; Meyer, M.; Sekiguchi, K.; Best, P.; et al.; Home range and diving behaviour of Heaviside's dolphins monitored by satellite off the west coast of South Africa; Natl Inquiry Services Centre Pty Ltd; African Journal Of Marine Science; 36; 4; 9-2014; 455-466  
dc.identifier.issn
1814-232X  
dc.identifier.uri
http://hdl.handle.net/11336/35273  
dc.description.abstract
Three Heaviside’s dolphins Cephalorhynchus heavisidii were fitted with satellite depth recorders off the west coast of South Africa during February–April 1997 and monitored for 51, 73 and 130 days, respectively. In total, 345 locations were received from the three animals, but only 27 from one male. Using -local convex hull and minimum convex polygon methods, respectively, the home range for the remaining male was estimated at 1 520 and 2 347 km2, with corresponding core-area estimates (50% of locations) of 134 and 123 km2. For the female, the home range estimates were 672 and 1 027 km2, and those for the core area were 71 and 230 km2. The female’s home range was the smallest yet described for this species, and the animal was resighted nearly three years later within 13 km of the tagging site. Binned dive data were received at 6-hourly intervals. From comparison of maximum dive depth and time-at-depth data, we concluded that dives <4 m deep were associated with surfacing bouts. Dives to below 4 m occurred throughout 24 h but were shallower during the day and deepest either at dusk or at night. This pattern was consistent with earlier descriptions of offshore movement during the day and may be related to the diel vertical migration of its principal prey, shallow-water hake Merluccius capensis.  
dc.format
application/pdf  
dc.language.iso
eng  
dc.publisher
Natl Inquiry Services Centre Pty Ltd  
dc.rights
info:eu-repo/semantics/openAccess  
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/  
dc.subject
Cephalorhynchus Heavisidii  
dc.subject
Dive Depth  
dc.subject
Saddle Attachment  
dc.subject
Service Argos Satellite System  
dc.subject
Surfacing Intervals  
dc.subject
Time-At-Depth  
dc.subject.classification
Otras Ciencias Biológicas  
dc.subject.classification
Ciencias Biológicas  
dc.subject.classification
CIENCIAS NATURALES Y EXACTAS  
dc.title
Home range and diving behaviour of Heaviside's dolphins monitored by satellite off the west coast of South Africa  
dc.type
info:eu-repo/semantics/article  
dc.type
info:ar-repo/semantics/artículo  
dc.type
info:eu-repo/semantics/publishedVersion  
dc.date.updated
2018-01-26T18:56:42Z  
dc.journal.volume
36  
dc.journal.number
4  
dc.journal.pagination
455-466  
dc.journal.pais
Sudáfrica  
dc.journal.ciudad
Johannesburg  
dc.description.fil
Fil: Davis, R. W.. Texas A&M University; Estados Unidos  
dc.description.fil
Fil: David, J. H. M.. Oceans and Coasts; Sudáfrica  
dc.description.fil
Fil: Meyer, M.. Oceans and Coasts; Sudáfrica  
dc.description.fil
Fil: Sekiguchi, K.. International Christian University. Tokio; Francia  
dc.description.fil
Fil: Best, P.. University of Pretoria; Sudáfrica  
dc.description.fil
Fil: Dassis, Mariela. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mar del Plata. Instituto de Investigaciones Marinas y Costeras. Universidad Nacional de Mar del Plata. Facultad de Ciencia Exactas y Naturales. Instituto de Investigaciones Marinas y Costeras; Argentina  
dc.description.fil
Fil: Rodriguez, Diego Horacio. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mar del Plata. Instituto de Investigaciones Marinas y Costeras. Universidad Nacional de Mar del Plata. Facultad de Ciencia Exactas y Naturales. Instituto de Investigaciones Marinas y Costeras; Argentina  
dc.journal.title
African Journal Of Marine Science  
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.2989/1814232X.2014.973903  
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/http://www.tandfonline.com/doi/abs/10.2989/1814232X.2014.973903