Population genetics of Bowhead whales (Balaena mysticetus) in the Western Arctic

Geof H. Givens, Ryan M. Huebinger, John C. Patton, Lianne D. Postma, Meliss Lindsay, Robert S. Suydam, John C. George, Cole W. Matson, J. W. Bickham

Research output: Contribution to journalArticle

12 Citations (Scopus)

Abstract

Bowhead whales (Balaena mysticetus) in the Bering, Chukchi, and Beaufort seas experienced a severe reduction as a result of commercial whaling in the 19th century. since the cessation of commercial whaling, the population has recovered to a size that is approaching pre-whaling estimates. Inupiat and Yupik communities in northern and western Alaska hunt these Western Arctic (WA) bowheads along their migratory path during spring and fall. This hunting is regulated by the International Whaling Commission. Recent but preliminary analysis of available genetic data (207 whales and 10 micro- satellite markers) raised the question of the presence of multiple, genetically distinct populations within the WA bowheads. Here we re-examined this question on the basis of a study of 414 whales and 22 newly developed microsatellite loci. We identified widespread departures from Hardy-Weinberg equilibrium; however, we were unable to detect significant evidence of multiple genetic populations within the WA bowheads that could explain this Hardy-Weinberg disequilibrium, particularly when compared to the strength of evidence for differentiation between WA bowheads and other populations from distant regions such as the Okhotsk Sea and eastern Canada. There was conclusive evidence of genetic differentiation among the three regions. The statistical rejection of panmixia within the WA improves our understanding of bowhead whale biology, and the lack of evidence for multiple populations within the WA enables risk-averse management of aboriginal hunting of Western Arctic bowhead whales.

Original languageEnglish (US)
Pages (from-to)1-12
Number of pages12
JournalArctic
Volume63
Issue number1
StatePublished - Mar 2010

Fingerprint

whaling
whale
population genetics
Arctic region
hunting
whales
Chukchi Sea
genetic differentiation
disequilibrium
Beaufort Sea
Okhotsk Sea
Bering Sea
risk management
Balaena mysticetus
Canada
microsatellite repeats
Biological Sciences
genetic variation
loci
sea

Keywords

  • Alaska
  • Beaufort
  • Bering
  • Bowhead whale
  • Chukchi
  • Conservation
  • Genetic analysis
  • Genetic bottleneck
  • Hardy-Weinberg disequilibrium
  • Population differentiation
  • Population structure
  • Temporal substructure

ASJC Scopus subject areas

  • Ecology, Evolution, Behavior and Systematics

Cite this

Givens, G. H., Huebinger, R. M., Patton, J. C., Postma, L. D., Lindsay, M., Suydam, R. S., ... Bickham, J. W. (2010). Population genetics of Bowhead whales (Balaena mysticetus) in the Western Arctic. Arctic, 63(1), 1-12.

Population genetics of Bowhead whales (Balaena mysticetus) in the Western Arctic. / Givens, Geof H.; Huebinger, Ryan M.; Patton, John C.; Postma, Lianne D.; Lindsay, Meliss; Suydam, Robert S.; George, John C.; Matson, Cole W.; Bickham, J. W.

In: Arctic, Vol. 63, No. 1, 03.2010, p. 1-12.

Research output: Contribution to journalArticle

Givens, GH, Huebinger, RM, Patton, JC, Postma, LD, Lindsay, M, Suydam, RS, George, JC, Matson, CW & Bickham, JW 2010, 'Population genetics of Bowhead whales (Balaena mysticetus) in the Western Arctic', Arctic, vol. 63, no. 1, pp. 1-12.
Givens GH, Huebinger RM, Patton JC, Postma LD, Lindsay M, Suydam RS et al. Population genetics of Bowhead whales (Balaena mysticetus) in the Western Arctic. Arctic. 2010 Mar;63(1):1-12.
Givens, Geof H. ; Huebinger, Ryan M. ; Patton, John C. ; Postma, Lianne D. ; Lindsay, Meliss ; Suydam, Robert S. ; George, John C. ; Matson, Cole W. ; Bickham, J. W. / Population genetics of Bowhead whales (Balaena mysticetus) in the Western Arctic. In: Arctic. 2010 ; Vol. 63, No. 1. pp. 1-12.
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