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dc.creatorLESCRAUWAET,ANNE-CATHERINE
dc.creatorGIBBONS,JORGE
dc.creatorGUZMAN,LEONARDO
dc.creatorSCHIAVINI,ADRIAN
dc.date2000-09-01
dc.date.accessioned2020-02-17T15:25:47Z
dc.date.available2020-02-17T15:25:47Z
dc.identifierhttps://scielo.conicyt.cl/scielo.php?script=sci_arttext&pid=S0716-078X2000000300010
dc.identifier.urihttps://revistaschilenas.uchile.cl/handle/2250/126330
dc.descriptionAbundance of Commerson s dolphin, Cephalorhynchus commersonii (Lacépède 1804), in the eastern portion of the Strait of Magellan was estimated by means of aerial transects in autumn (June 1996). Using a helicopter at 100 m altitude and 129 km h-1, 58 sightings representing 98 animals (average group size Es = 1.7, SD = 0.13) along 818.6 km of linear transects were recorded. Data analysis with "Distance" software gave a density estimation of 0.34 ind km-2 (CV = 0.27) and a population size of 1,206 (95% CI 711-2,049 individuals). Commerson s dolphin showed a habitat preference for the narrows, compared to open waters in the study area.
dc.formattext/html
dc.languageen
dc.publisherSociedad de Biología de Chile
dc.relation10.4067/S0716-078X2000000300010
dc.rightsinfo:eu-repo/semantics/openAccess
dc.sourceRevista chilena de historia natural v.73 n.3 2000
dc.subjectCommerson s dolphin
dc.subjectCephalorhynchus commersonii
dc.subjectStrait of Magellan
dc.subjectLine transect sampling
dc.subjecthabitat preference
dc.titleAbundance estimation of Commerson s dolphin in the eastern area of the Strait of Magallan-Chile


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