Continued population recovery by Australian fur seals

Kirkwood, Roger, Pemberton, David, Gales, Rosemary, Hoskins, Andrew. J, Mitchell, Tony and Arnould, John. P. Y 2010, Continued population recovery by Australian fur seals, Marine and freshwater research, vol. 61, no. 6, pp. 695-701.

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Title Continued population recovery by Australian fur seals
Author(s) Kirkwood, Roger
Pemberton, David
Gales, Rosemary
Hoskins, Andrew. J
Mitchell, Tony
Arnould, John. P. Y
Journal name Marine and freshwater research
Volume number 61
Issue number 6
Start page 695
End page 701
Publisher CSIRO Publishing
Place of publication Collingwood, Vic.
Publication date 2010-06
ISSN 1323-1650
1448-6059
Keyword(s) Arctocephalus pusillus
population status
pups born
Summary Australian fur seals (Arctocephalus pusillus doriferus) are conspicuous, top-level predators in coastal waters of south-eastern Australia that were over-harvested during the 1800s and have had a delayed recovery. A previous species-wide estimate of live pups in 2002 recorded a near-doubling of annual pup production and a 5% annual growth rate since the 1980s. To determine if pup production increased after 2002, we estimated live pup numbers in 2007. Pups were recorded at 20 locations: 10 previously known colonies, three newly recognised colonies and seven haul-out sites where pups are occasionally born. Two colonies adjacent to the Victorian coast accounted for 51% of live pups estimated: Seal Rocks (5660 pups, 25.9%) and Lady Julia Percy Island (5574 pups, 25.5%). Although some colonies were up and some were down in pup numbers, the 2007 total of 21 882±187 (s.e.) live pups did not differ significantly from a recalculated estimate of 21 545±184 in 2002, suggesting little change to overall population size. However, the colonisation of three new sites between 2002 and 2007 indicates population recovery has continued.
Language eng
Field of Research 060207 Population Ecology
060205 Marine and Estuarine Ecology (incl Marine Ichthyology)
Socio Economic Objective 960808 Marine Flora, Fauna and Biodiversity
HERDC Research category C1 Refereed article in a scholarly journal
HERDC collection year 2010
Copyright notice ©2010, CSIRO
Persistent URL http://hdl.handle.net/10536/DRO/DU:30031548

Document type: Journal Article
Collection: School of Life and Environmental Sciences
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