Landscape Genetics Map for Salmon in Norton Sound, Yukon and Kuskokwim Rivers |
US Fish and Wildlife Service Conservation Genetics Laboratory, Anchorage Alaska |
Title: Chinook_Sites |
Abstract: This layer is exported from LG_Chinook GIS layer from the Conservation Genetics Laboratory, US Fish and Wildlife Service, Anchorage, Alaska. The layer depicts landscape genetic population groups defined by genetic and geographic data using Spatial Analysis of Molecular Variance (SAMOVA, Dupanloup et al. 2002 Molecular Ecology 11:1271-1281). This method incorporates spatial data (e.g., latitude and longitude) to group populations such that the genetic difference among populations within groups is minimized while the genetic difference among population groups is maximized. The result is often groups of populations that are both geographically and genetically distinct. Our results revealed six population groups, of which three were relatively large in terms of population number and area. The largest group (group one, 25 populations) included coastal populations from Norton Sound, the lower Yukon River and most of the Kuskokwim River. Population groups two (8 populations) and four (10 populations) were also relatively large and occurred in the middle and upper Yukon River, respectively. The remaining three groups consisted of one or two isolated inland populations. This analysis suggests that hierarchical population structure occurs primarily along a latitudinal axis (east-west) which is dominated by the Yukon River, rather than the much shorter longitudinal axis (north-south) that defines the relative position of the three major watersheds (Norton Sound and the Yukon and Kuskokwim rivers). This spatial orientation (coastal - inland) was also observed in chum and coho salmon. The layer also contains collection site data including values from overlaying environmental layers and summary genetic data (principle component, mean Fst using the method of Foll and Gagiotti 2006 Genetics 174:875-891, mean heterozygosity) for Chinook salmon. Purpose: To assess if the three major watersheds (Norton Sound and the Yukon and Kuskokwim rivers) are the primary determinant of hiearchical population structure for Chinook salmon and to assess if the patterns of hierarchical structure in Chinook, chum, and coho salmon are congruent. Supplemental: Publication Date: October 2009 Originator: USFWS, Conservation Genetics Laboratory, 1011 East Tudor Road, Anchorage, Alaska 99503 Online citation: \\KODIAK\I$\ProjectData\USFWS_CGL\CGL_LG_Data.mdb Bounding coordinates: West: -166.598972 East: -128.543802 North: 67.376555 South: 57.789373 Place Keywords: Yukon River, Kuskokwim River, Norton Sound, Alaska, Yukon Theme Keywords: salmon, genetics, Chinook, Chum, Coho Projection: NAD_1983_Alaska_Albers Geographic: GCS_North_American_1983 Attributes of: Chinook_Sites OBJECTID
SHAPE
Site_ID
Site_Name
Waterbody_Name
Site_Type
Lat_NAD83
Long_NAD83
Chin_Pop_No
Coho_Pop_No
Chum_Pop_No
Chin_PC1
Chin_PC2
Chin_PC3
Chin_Fst
Chin_He
Chinook_PopGroup
Chin_yes_no
Chum_yes_no
Coho_yes_no
Metadata date: 20090722 |
Geographic Resource Solutions |