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| Abstract |
- 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.
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| Citation |
- Lang, A. R., Calambokidis, J., Scordino, J., Pease, V. L., Klimek, A., Burkanov, V. N., Gearin, P., Litovka, D. I., Robertson, K. M., Mate, B. R., Jacobsen, J. K. and Taylor, B. L. (2014). Assessment of genetic structure among eastern North Pacific gray whales on their feeding grounds. Marine Mammal Science, 30(4), 1473–1493. doi:10.1111/mms.12129
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| Funding Statement (additional comments about funding) |
- Southwest Fisheries Science Center, National Marine Fisheries Service, National Oceanic and Atmospheric Administration
- Species Recovery Grant to Tribes
- The Northwest Regional Office, National Marine Fisheries Service, National Oceanic and Atmospheric Administration
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| Additional Information |
- description.provenance : Approved for entry into archive by Erin Clark(erin.clark@oregonstate.edu) on 2014-11-10T21:53:34Z (GMT) No. of bitstreams: 2MateBruceHMSCAssessmentGeneticStructure.pdf: 578018 bytes, checksum: 419648afd30103ed2033e5214da4fd7d (MD5)MateBruceHMSCAssessmentGeneticStructure_TableS1-S3.pdf: 412794 bytes, checksum: 1b65cf3ff5003c77e5b9dc164a17db54 (MD5)
- description.provenance : Made available in DSpace on 2014-11-10T21:53:34Z (GMT). No. of bitstreams: 2MateBruceHMSCAssessmentGeneticStructure.pdf: 578018 bytes, checksum: 419648afd30103ed2033e5214da4fd7d (MD5)MateBruceHMSCAssessmentGeneticStructure_TableS1-S3.pdf: 412794 bytes, checksum: 1b65cf3ff5003c77e5b9dc164a17db54 (MD5) Previous issue date: 2014-10
- To the best of our knowledge, one or more authors of this paper were federal employees when contributing to this work.
- Some of the work presented here was conducted as part of a National Research Council Postdoctoral Fellowship..
- description.provenance : Submitted by Erin Clark (erin.clark@oregonstate.edu) on 2014-11-10T21:53:18ZNo. of bitstreams: 2MateBruceHMSCAssessmentGeneticStructure.pdf: 578018 bytes, checksum: 419648afd30103ed2033e5214da4fd7d (MD5)MateBruceHMSCAssessmentGeneticStructure_TableS1-S3.pdf: 412794 bytes, checksum: 1b65cf3ff5003c77e5b9dc164a17db54 (MD5)
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