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Dispersal of southern elephant seals (Mirounga leonina L.) marked at Macquarie Island
journal contribution
posted on 2023-05-16, 13:12 authored by van den Hoff, JSouthern elephant seals marked at Macquarie Island disperse to distant locations where they are sometimes seen during their moult and, for juveniles, a mid-year haul-out period (July - August). Most (87%) of these resighted seals were within 1000 km of Macquarie Island, and most commonly at Campbell Island (700 km to the north-east). The sex and age classes most likely to disperse there were males less than two years old. Male elephant seals of all ages were resighted significantly more often than females, the ratio being 2: 1 (P > 0.05). Migration duration tended to increase with the seals' age but migration distance was underestimated from resight observations when compared with known telemetry records. Emigration from the Macquarie Island population appears limited. From the resight effort at Campbell Island during 1995 the maximum proportion of the juvenile population from Macquarie Island to haul-out at Campbell Island was in the order of 0.0053.
History
Publication title
Wildlife ResearchVolume
28Issue
4Pagination
413-418ISSN
1035-3712Department/School
Institute for Marine and Antarctic StudiesPublisher
CSIRO PublishingPlace of publication
Collingwood, AustraliaRepository Status
- Restricted