AFSC/ABL: Chinook allozyme baseline

Metadata Updated: October 1, 2021

Allozyme variation was used to examine population genetic structure of adult chinook salmon, Oncorhynchus tshawytscha, collected between 1988 and 1993 from 22 spawning locations in Southeast Alaska and northern British Columbia. Thirty-five loci and two pairs of isoloci were variable, and of these, 25 loci and one pair of isoloci expressed the most abundant allele with a frequency of less than or equal to 0.95 in at least one collection. Aneighbor-joining (NJ) tree of genetic distances defined five regional groups: (1) King Salmon River (the only island collection), which has large allelic frequency differences from other populations in this study; (2) heterogeneous coastal populations from southern southeast Alaska; (3) transmountain collections from the Taku and Stikine Rivers on the eastern side of the coastal mountain range; (4) Chilkat River in northern Southeast Alaska; and (5) northern coastal Southeast Alaska, which consists of the Situk River and the Klukshu River, a tributary of the Alsek River. A second NJ tree that included collections from the Yukon River and British Columbia did not reveal any strong genetic similarity between Southeast Alaska and the Yukon River. The data suggest that Southeast Alaska may have been colonized from both northern and southern refugia following the last glaciation b?? a period of sufficient time to allow for isolation by distance to occur.

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License: No license information was provided. If this work was prepared by an officer or employee of the United States government as part of that person's official duties it is considered a U.S. Government Work.

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Metadata Date July 28, 2021
Metadata Created Date November 12, 2020
Metadata Updated Date October 1, 2021
Reference Date(s) December 1, 2004 (publication)
Frequency Of Update notPlanned

Additional Metadata

Resource Type Dataset
Metadata Date July 28, 2021
Metadata Created Date November 12, 2020
Metadata Updated Date October 1, 2021
Reference Date(s) December 1, 2004 (publication)
Responsible Party (Point of Contact, Custodian)
Contact Email
Guid gov.noaa.nmfs.inport:17235
Access Constraints Cite As: Alaska Fisheries Science Center, [Date of Access]: AFSC/ABL: Chinook allozyme baseline [Data Date Range],, Access Constraints: There are no legal restrictions on access to the data. They reside in public domain and can be freely distributed. | Use Constraints: User must read and fully comprehend the metadata prior to use. Data should not be used beyond the limits of the source scale. Acknowledgement of NOAA, as the source from which these data were obtained, in any publications and/or other representations of these data is suggested.
Bbox East Long -130.3211
Bbox North Lat 60.2
Bbox South Lat 55.3375
Bbox West Long -139.41055
Coupled Resource
Frequency Of Update notPlanned
Harvest Object Id 3b53c4c9-2251-41df-93ec-fbadf07f0d6b
Harvest Source Id 26a29bb9-50b0-47fd-920b-edc74aa6ec76
Harvest Source Title NMFS AFSC
Licence NOAA provides no warranty, nor accepts any liability occurring from any incomplete, incorrect, or misleading data, or from any incorrect, incomplete, or misleading use of the data. It is the responsibility of the user to determine whether or not the data is suitable for the intended purpose.
Metadata Language eng
Metadata Type geospatial
Old Spatial {"type": "Polygon", "coordinates": [[[-139.41055, 55.3375], [-130.3211, 55.3375], [-130.3211, 60.2], [-139.41055, 60.2], [-139.41055, 55.3375]]]}
Progress completed
Spatial Data Service Type
Spatial Reference System
Spatial Harvester True
Temporal Extent Begin 1988
Temporal Extent End 1993

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