Journal Article

Historical population assessment of Barents Sea harp seals (<i>Pagophilus groenlandicus</i>)

Hans J. Skaug, Lennart Frimannslund and Nils I. Øien

in ICES Journal of Marine Science

Published on behalf of ICES/CIEM

Volume 64, issue 7, pages 1356-1365
Published in print October 2007 | ISSN: 1054-3139
Published online September 2007 | e-ISSN: 1095-9289 | DOI: http://dx.doi.org/10.1093/icesjms/fsm118
Historical population assessment of Barents Sea harp seals (Pagophilus groenlandicus)

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Skaug, H. J., Frimannslund, L., and Øien, N. I. 2007. Historical population assessment of Barents Sea harp seals (Pagophilus groenlandicus). – ICES Journal of Marine Science, 64: 1356–1365: –.

Harp seals are an important component of the Barents Sea ecosystem. Population size is estimated to have been around 6 million seals in 1875, when large-scale exploitation by Norwegian and Russian hunters started. The estimate is obtained by fitting a population dynamics model to all available sources of data on Barents Sea harp seals, but because of a lack of information about several key parameters in the model, the uncertainty associated with the estimate is large. A sensitivity study involving three different mechanisms for density-dependence results in a range estimate of 3–7 million seals in 1875.

Keywords: catch history; density-dependence; population estimation

Journal Article.  6108 words.  Illustrated.

Subjects: Environmental Science ; Marine and Estuarine Biology

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