| dc.creator | LESCRAUWAET,ANNE-CATHERINE | |
| dc.creator | GIBBONS,JORGE | |
| dc.creator | GUZMAN,LEONARDO | |
| dc.creator | SCHIAVINI,ADRIAN | |
| dc.date | 2000-09-01 | |
| dc.date.accessioned | 2020-02-17T15:25:47Z | |
| dc.date.available | 2020-02-17T15:25:47Z | |
| dc.identifier | https://scielo.conicyt.cl/scielo.php?script=sci_arttext&pid=S0716-078X2000000300010 | |
| dc.identifier.uri | https://revistaschilenas.uchile.cl/handle/2250/126330 | |
| dc.description | Abundance 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.format | text/html | |
| dc.language | en | |
| dc.publisher | Sociedad de Biología de Chile | |
| dc.relation | 10.4067/S0716-078X2000000300010 | |
| dc.rights | info:eu-repo/semantics/openAccess | |
| dc.source | Revista chilena de historia natural v.73 n.3 2000 | |
| dc.subject | Commerson s dolphin | |
| dc.subject | Cephalorhynchus commersonii | |
| dc.subject | Strait of Magellan | |
| dc.subject | Line transect sampling | |
| dc.subject | habitat preference | |
| dc.title | Abundance estimation of Commerson s dolphin in the eastern area of the Strait of Magallan-Chile | |
