• Login
    View Item 
    •   Home
    • University of Alaska Southeast
    • School of Arts and Sciences
    • Faculty, Staff, and Students
    • Straley, Janice
    • View Item
    •   Home
    • University of Alaska Southeast
    • School of Arts and Sciences
    • Faculty, Staff, and Students
    • Straley, Janice
    • View Item
    JavaScript is disabled for your browser. Some features of this site may not work without it.

    Browse

    All of Scholarworks@UACommunitiesPublication DateAuthorsTitlesSubjectsTypeThis CollectionPublication DateAuthorsTitlesSubjectsType

    My Account

    Login

    First Time Submitters, Register Here

    Register

    Statistics

    Display statistics

    Using movements, genetics and trophic ecology to differentiate inshore from offshore aggregations of humpback whales in the Gulf of Alaska

    • CSV
    • RefMan
    • EndNote
    • BibTex
    • RefWorks
    Thumbnail
    Name:
    2011_Straley_Using movements, ...
    Size:
    1.193Mb
    Format:
    PDF
    Description:
    article
    Download
    Author
    Witteveen, Briana Harmony
    Straley, Janice M.
    Chenoweth, Ellen M.
    Baker, C. Scott
    Barlow, Jay
    Matkin, Craig O.
    Gabriele, Christine M.
    Neilson, Janet L.
    Steel, Debbie J.
    von Ziegesar, Olga
    Andrews, Alexander G.
    Hirons, Amy Christia
    Show allShow less
    Keyword
    Humpback whale
    Megaptera novaeangliae
    Gulf of Alaska
    mtDNA
    Haplotype
    Trophic level
    Movement
    Metadata
    Show full item record
    URI
    http://hdl.handle.net/11122/11919
    Abstract
    Humpback whales Megaptera novaeangliae have been studied in the coastal waters of the Gulf of Alaska (GOA) since the late 1960s, but information about whales foraging offshore is limited. A large-scale collaborative project (SPLASH) provided opportunities to study humpback whales in both inshore and offshore habitats. Using identification photographs and biopsy samples, we explored individual movements, the distribution of mitochondrial (mtDNA) haplotypes, and trophic levels for humpback whales within 3 regions (Kodiak, KOD; Prince William Sound, PWS; and southeastern Alaska, SEAK) of the GOA to determine whether inshore and offshore aggregations of humpback whales are distinct. Each region was divided into inshore and offshore habitats, creating 6 subregions for comparison. Results documenting 2136 individual whales showed that movement within the study area was most frequent between inshore and offshore subregions within a region. In general, movement between regions was minimal. Tissue samples of 483 humpback whales included 15 mtDNA haplotypes. Pairwise chi-squared tests showed haplotype differences between subregions, but inshore PWS was the only subregion with a haplotype composition significantly different than all other subregions. Trophic levels, as inferred from stable nitrogen isotope ratios, were significantly different among subregions, ranging from 3.4 to 4.5. Pairwise comparisons showed that inshore PWS was again the only subregion that significantly differed from all others. Results suggest that the combined inshore and offshore habitats for KOD and the inshore and offshore habitats for SEAK should each be considered as single regional feeding aggregations, while inshore PWS may represent a separate aggregation from PWS offshore.
    Date
    2011-09-23
    Source
    Endangered Species Research
    Publisher
    Inter-Research Science Publisher
    Type
    Article
    Peer-Reviewed
    Yes
    Citation
    Witteveen, B. H., Straley, J. M., Chenoweth, E., Baker, C. S., Barlow, J., Matkin, C., ... & Hirons, A. (2011). Using movements, genetics and trophic ecology to differentiate inshore from offshore aggregations of humpback whales in the Gulf of Alaska. Endangered Species Research, 14(3), 217-225.
    Collections
    Straley, Janice

    entitlement

     
    ABOUT US|HELP|BROWSE|ADVANCED SEARCH

    The University of Alaska Fairbanks is an affirmative action/equal opportunity employer and educational institution and is a part of the University of Alaska system.

    ©UAF 2013 - 2023 | Questions? ua-scholarworks@alaska.edu | Last modified: September 25, 2019

    Open Repository is a service operated by 
    Atmire NV
     

    Export search results

    The export option will allow you to export the current search results of the entered query to a file. Different formats are available for download. To export the items, click on the button corresponding with the preferred download format.

    By default, clicking on the export buttons will result in a download of the allowed maximum amount of items.

    To select a subset of the search results, click "Selective Export" button and make a selection of the items you want to export. The amount of items that can be exported at once is similarly restricted as the full export.

    After making a selection, click one of the export format buttons. The amount of items that will be exported is indicated in the bubble next to export format.