| Report of the Meeting on the Use of Multiple Lines of Evidence to Delineate Demographically Independent Populations - :4876 | National Marine Fisheries Service (NMFS)
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Report of the Meeting on the Use of Multiple Lines of Evidence to Delineate Demographically Independent Populations
  • Published Date:
    2015
Filetype[PDF-650.57 KB]


Details:
  • Corporate Authors:
    Southwest Fisheries Science Center (U.S.), Marine Mammal and Turtle Division
  • Conference Authors:
    Meeting on the Use of Multiple Lines of Evidence to Delineate Demographically Independent Populations (2014 : Southwest Fisheries Science Center),
  • Description:
    "The NMFS Southwest Fisheries Science Center hosted a meeting to improve delineation of demographically independent populations under the MMPA from August 19-21, 2014. The meeting included representation of nearly all NMFS Science Centers, all Regional Scientific Review groups, and some representatives from NMFS Regional Offices and outside expertise (List of Participants, Agenda, Appendix 1). The impetus for the effort to improve stock delineation came from the 2011 meeting to revise the Guidelines for Assessing Marine Mammal Stocks (GAMMS III) where it was documented that the ranges of most of the stocks set forth in the 1994 Stock Assessment Reports (SARs) encompassed large geographic areas and that stock revisions had been made only for species with genetic data available. Although the GAMMS report notes that lines of evidence other than genetics can be used, guidance on using other lines of evidence are not given and examples are not available. Consistency and accuracy in delineating stocks for species with limited data would be improved if both guidelines on the strengths of different lines of evidence and guidance on how to evaluate multiple lines together were available. A steering group was formed to organize this effort. The steering group scheduled presentations and discussions on each line of evidence listed in the GAMMS. The summaries of those discussion groups formed the basis for the meeting described in this report"--Executive summary.

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