Assessment of genetic structure among eastern North Pacific gray whales on their feeding grounds
Although most eastern North Pacific (ENP) gray whales feed in the Bering, Beaufort, and Chukchi Seas during summer and fall, a small number of individuals, referred to as the Pacific Coast Feeding Group (PCFG), show intra- and interseasonal fidelity to feeding areas from northern California through...
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ftoregonstate:ir.library.oregonstate.edu:t148fj69w 2024-04-14T08:10:24+00:00 Assessment of genetic structure among eastern North Pacific gray whales on their feeding grounds Lang, Aimée R. Calambokidis, John Scordino, Jonathan Pease, Victoria L. Klimek, Amber Burkanov, Vladimir N. Gearin, Pat Litovka, Dennis I. Robertson, Kelly M. Mate, Bruce R. Jacobsen, Jeff K. Taylor, Barbara L. https://ir.library.oregonstate.edu/concern/articles/t148fj69w English [eng] eng unknown John Wiley & Sons Ltd. This is the publisher’s final pdf. The article is copyrighted by the Society for Marine Mammalogy and published by John Wiley & Sons Ltd.: 0 https://ir.library.oregonstate.edu/concern/articles/t148fj69w Copyright Not Evaluated Article ftoregonstate 2024-03-21T15:50:23Z Although most eastern North Pacific (ENP) gray whales feed in the Bering, Beaufort, and Chukchi Seas during summer and fall, a small number of individuals, referred to as the Pacific Coast Feeding Group (PCFG), show intra- and interseasonal fidelity to feeding areas from northern California through southeastern Alaska. We used both mitochondrial DNA (mtDNA) and 12 microsatellite markers to assess whether stock structure exists among feeding grounds used by ENP gray whales. Significant mtDNA differentiation was found when samples representing the PCFG (n = 71) were compared with samples (n = 103) collected from animals feeding further north (Fₛₜ = 0.012, P = 0.0045). No significant nuclear differences were detected. These results indicate that matrilineal fidelity plays a role in creating structure among feeding grounds but suggests that individuals from different feeding areas may interbreed. Haplotype diversities were similar between strata (hₚCFG = 0.945, hₙₒᵣₜₕₑᵣₙ = 0.952), which, in combination with the low level of mtDNA differentiation identified, suggested that some immigration into the PCFG could be occurring. These results are important in evaluating the management of ENP gray whales, especially in light of the Makah Tribe’s proposal to resume whaling in an area of the Washington coast utilized by both PCFG and migrating whales. Article in Journal/Newspaper Chukchi Alaska ScholarsArchive@OSU (Oregon State University) Pacific |
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ScholarsArchive@OSU (Oregon State University) |
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English unknown |
description |
Although most eastern North Pacific (ENP) gray whales feed in the Bering, Beaufort, and Chukchi Seas during summer and fall, a small number of individuals, referred to as the Pacific Coast Feeding Group (PCFG), show intra- and interseasonal fidelity to feeding areas from northern California through southeastern Alaska. We used both mitochondrial DNA (mtDNA) and 12 microsatellite markers to assess whether stock structure exists among feeding grounds used by ENP gray whales. Significant mtDNA differentiation was found when samples representing the PCFG (n = 71) were compared with samples (n = 103) collected from animals feeding further north (Fₛₜ = 0.012, P = 0.0045). No significant nuclear differences were detected. These results indicate that matrilineal fidelity plays a role in creating structure among feeding grounds but suggests that individuals from different feeding areas may interbreed. Haplotype diversities were similar between strata (hₚCFG = 0.945, hₙₒᵣₜₕₑᵣₙ = 0.952), which, in combination with the low level of mtDNA differentiation identified, suggested that some immigration into the PCFG could be occurring. These results are important in evaluating the management of ENP gray whales, especially in light of the Makah Tribe’s proposal to resume whaling in an area of the Washington coast utilized by both PCFG and migrating whales. |
format |
Article in Journal/Newspaper |
author |
Lang, Aimée R. Calambokidis, John Scordino, Jonathan Pease, Victoria L. Klimek, Amber Burkanov, Vladimir N. Gearin, Pat Litovka, Dennis I. Robertson, Kelly M. Mate, Bruce R. Jacobsen, Jeff K. Taylor, Barbara L. |
spellingShingle |
Lang, Aimée R. Calambokidis, John Scordino, Jonathan Pease, Victoria L. Klimek, Amber Burkanov, Vladimir N. Gearin, Pat Litovka, Dennis I. Robertson, Kelly M. Mate, Bruce R. Jacobsen, Jeff K. Taylor, Barbara L. Assessment of genetic structure among eastern North Pacific gray whales on their feeding grounds |
author_facet |
Lang, Aimée R. Calambokidis, John Scordino, Jonathan Pease, Victoria L. Klimek, Amber Burkanov, Vladimir N. Gearin, Pat Litovka, Dennis I. Robertson, Kelly M. Mate, Bruce R. Jacobsen, Jeff K. Taylor, Barbara L. |
author_sort |
Lang, Aimée R. |
title |
Assessment of genetic structure among eastern North Pacific gray whales on their feeding grounds |
title_short |
Assessment of genetic structure among eastern North Pacific gray whales on their feeding grounds |
title_full |
Assessment of genetic structure among eastern North Pacific gray whales on their feeding grounds |
title_fullStr |
Assessment of genetic structure among eastern North Pacific gray whales on their feeding grounds |
title_full_unstemmed |
Assessment of genetic structure among eastern North Pacific gray whales on their feeding grounds |
title_sort |
assessment of genetic structure among eastern north pacific gray whales on their feeding grounds |
publisher |
John Wiley & Sons Ltd. |
url |
https://ir.library.oregonstate.edu/concern/articles/t148fj69w |
geographic |
Pacific |
geographic_facet |
Pacific |
genre |
Chukchi Alaska |
genre_facet |
Chukchi Alaska |
op_relation |
This is the publisher’s final pdf. The article is copyrighted by the Society for Marine Mammalogy and published by John Wiley & Sons Ltd.: 0 https://ir.library.oregonstate.edu/concern/articles/t148fj69w |
op_rights |
Copyright Not Evaluated |
_version_ |
1796307970333605888 |