Chum and pink salmon genetics - Genetic and life history variation of southern chum and pink salmon

Metadata Updated: February 7, 2018

The distribution of genetic and life history variation in chum (Oncorhynchus keta) and pink (O. gorbuscha) salmon in their southern range in North America is key to understanding the factors that limit their distribution and abundance there. These species have the widest natural spawning distributions for salmon across the Pacific rim, and both species are abundant north of the contiguous 48 United States. However, they become less plentiful and persistent south of Puget Sound. Chum salmon are documented to spawn as far south in North America as San Lorenzo River in California and 322 km upstream in the Sacramento River. At the turn of the 20th century chum salmon was the most abundant salmonid in streams between the Sacramento and Columbia rivers, and over a million chum salmon returned to the Columbia River as late as the 1950s, supporting a thriving commercial fishery in Tillamook Bay, Oregon. Pink salmon are less plentiful in the region but considerable numbers have run into the lower Columbia River in past decades, and they are occasionally observed in small numbers in the Trinity River, California. Currently, chum and pink salmon populations south of the Columbia River have all but vanished, and Columbia River chum salmon are now listed under the ESA as a threatened species. The demographics, genetics, and life history of these southern populations has not been well documented; this project is an attempt to collect available information on them. Tissues collected from Washington and Oregon adult spawners and carcasses between 2009 and present for DNA extraction.

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Metadata Date April 5, 2017
Metadata Created Date September 26, 2015
Metadata Updated Date February 7, 2018
Reference Date(s) (publication)
Frequency Of Update

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Harvested from NOAA CSW Harvest Source

Additional Metadata

Resource Type Dataset
Metadata Date April 5, 2017
Metadata Created Date September 26, 2015
Metadata Updated Date February 7, 2018
Reference Date(s) (publication)
Responsible Party (); Northwest Fisheries Science Center (Point of Contact, Custodian)
Contact Email
Access Constraints Access Constraints: NA | Use Constraints: Disclaimer - While every effort has been made to ensure that these data are accurate and reliable within the limits of the current state of the art, NOAA cannot assume liability for any damages caused by any errors or omissions in the data, nor as a result of the failure of the data to function on a particular system. NOAA makes no warranty, expressed or implied, nor does the fact of distribution constitute such a warranty.
Bbox East Long -122.2962
Bbox North Lat 47.6549
Bbox South Lat 47.6449
Bbox West Long -122.3062
Coupled Resource
Frequency Of Update
Guid gov.noaa.nmfs.inport:20586
Harvest Object Id 99e4e398-c60a-4ce3-a7ef-8e6f36b7cac7
Harvest Source Id 2aed8e29-fc5b-4cde-aa66-fb1118fd705e
Harvest Source Title NOAA CSW Harvest Source
Metadata Language eng
Metadata Type geospatial
Progress onGoing
Spatial Data Service Type
Spatial Reference System
Spatial Harvester True
Temporal Extent Begin 2011-10-01

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