24868 AFSC/ABL: 2012 Chum Salmon Bycatch Sample Analysis Bering Sea Data Set Published / External 12324 Auke Bay Laboratories Project Completed 2013 A genetic analysis of samples from the chum salmon (Oncorhynchus keta) bycatch from the 2012 Bering Sea walleye pollock (Gadus chalcogrammus) trawl fishery was undertaken to determine the overall stock composition of the sample set. A genetic analysis of chum salmon collected during a test of a salmon excluder device was also conducted. Samples were genotyped for 11 microsatellite markers and results were estimated using the current chum salmon microsatellite baseline. In 2012, genetic samples were collected systematically as part of a special project that commenced in 2011 to reduce sample biases that exist in collections from previous years and have the potential to affect stock composition analysis results. One genetic sample was collected for every 31.5 chum salmon caught in the 98% of the midwater trawl fishery that was sampled. Evaluation of sampling based on time, location, and vessel indicated that the genetic samples were representative of the total bycatch. Based on the analysis of 673 chum salmon bycatch samples collected throughout the 2012 Bering Sea trawl fishery, the North Asian stocks dominated the sample set (39%), with moderate contributions from East Asian (20%), Eastern Gulf of Alaska (GOA)/Pacific Northwest (PNW) (18%), and Western Alaska (14%) stocks, and smaller contributions from Upper/Middle Yukon River (7%) and Southwest Alaska (2%) stocks. The estimates for the 2012 chum salmon bycatch sample set differed from the mean of the 20052011 estimates for the two Asian regions, but not for the North American regions. The pattern of changes of regional stock contributions over three time periods in 2012 differed from previous years for some regions. There were some spatial differences in stock distribution; e.g., the East Asian stock contribution was higher in the central Bering Sea than in the southeastern Bering Sea. As with the bycatch samples, the salmon excluder device test samples included fish from all geographic regions despite being collected at small spatial and temporal scales. This dataset contains the data from genetic analyses of fish captured in 2011 in the Bering Sea. Loaded by FGDC Metadata Uploader, batch 6000, 05-01-2015 20:36 The following FGDC sections are not currently supported in InPort, but were preserved and will be included in the FGDC export: - Taxonomy (FGDC:taxonomy) Theme ISO 19115 Topic Category biota Theme ITIS Oncorhynchus keta Theme ITIS chum salmon Theme bycatch Theme genetic stock identification Spatial Geographic Names Information System Alaska Spatial Geographic Names Information System Bering Sea Auke Bay Laboratories Juneau AK US Data Set None Planned maps and data The user is responsible for the results of any application of this data for other than its intended purpose. National Marine Fisheries Services Observer Program unknown unknown unknown 24869 2012 Chum Bycatch Published / External Completed -no description- Loaded by FGDC Metadata Uploader, batch 6000, 05-01-2015 20:36 -no description- Sample name/sort Unknown No No Active Unique sample identifier No domain defined. Statistical Week Unknown No No Active Week 1 contains January 1; The "Rule of 3 - each aggregation must contain data from 3 or more vessels" applies. Prior to public release of data, Statistical Weeks 12 and 24 must be pooled with other Weeks. No domain defined. Allele Unknown No No Active Columns C through X; Alleles for 11 microsatellite loci in format of the Fisheries and Oceans Canada (DFO) 381-population chum salmon baseline, on their website (http://www.pac.dfo-mpo.gc.ca/science/facilities-installations/pbs-sbp/mgl-lgm/data-donnees/index-eng.html). No domain defined. Data Steward 2015-05-01 Person Kondzela, Chris chris.knodzela@noaa.gov Distributor 2015-05-01 Person Kondzela, Chris Chris.Kondzela@noaa.gov Originator 2015-05-01 Person Kondzela, Chris Chris.Kondzela@noaa.gov Point of Contact 2015-05-01 Person Kondzela, Chris Chris.Kondzela@noaa.gov Ground Condition -178.61 -164.07 60.97 54.11 Alaska, Bering Sea Range 2012-06-11 2012-11-01 Unclassified N/A For scientific, management, and regulation compliance purposes, all data collected by observers are confidential under the Magnuson-Stevens Fishery Conservation and Management Act [bm1]; as amended, Public Law 109-479; 16 U.S.C. 1953; implemented at 50 CFR 679.50. Therefore unprocessed (raw) data can be shared only with authorized persons; however aggregated forms of the data are generally available. 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. The user must adhere to restrictions placed on publication of data by the Magnuson-Stevens Fishery Conservation and Management Act. The user is responsible for the results of any application of this data for other than its intended purpose. https://www.ncei.noaa.gov/ NCEI to be determined Microsoft Excel Spreadsheet None Genotypes were scored by two people with the software GeneMapper 4.0. Samples missing genotypes from four or more loci, or having six or more homozygous loci were removed. Contact the dataset POC for full QA/QC methodology Yes Unknown Yes Yes yes unknown no delay To Be Determined unknown IT Security and Contingency Plan for the system establishes procedures and applies to the functions, operations, and resources necessary to recover and restore data as hosted in the Western Regional Support Center in Seattle, Washington, following a disruption. 1 All allele designations were standardized to the 381-population baseline dataset from Fisheries and Oceans Canada (DFO), available at http://www.pac.dfo-mpo.gc.ca/science/facilities-installations/pbs-sbp/mgl-lgm/data-donnees/index-eng.html 24869 Entity gov.noaa.nmfs.inport:24868 Emily Fergusson 2015-05-01T20:35:38 SysAdmin InPortAdmin 2025-05-15T19:15:46 2016-05-04 Alaska Fisheries Science Center AFSC 7600 Sand Point Way N.E., Building 4 Seattle WA 98115 USA https://www.afsc.noaa.gov 0700-1700 Pacific Time 1001 Public No No 2016-05-04 1 Year 2017-05-04 None collection multiple species vertebrates Empire Biovitae Carbon-based lifeforms Kingdom Animalia Phylum Chordata Subphylum Vertebrata Superclass Osteichthyes Class Actinopterygii Subclass Neopterygii Infraclass Teleostei Superorder Protacanthopterygii Order Salmoniformes Family Salmonidae Subfamily Salmoninae Genus Oncorhynchus Species keta chum salmon 2012 Chum Bycatch -no description- AFSC Sample name/sort Unique sample identifier AFSC No domain defined. Statistical Week Week 1 contains January 1; The "Rule of 3 - each aggregation must contain data from 3 or more vessels" applies. Prior to public release of data, Statistical Weeks 12 and 24 must be pooled with other Weeks. AFSC No domain defined. Allele Columns C through X; Alleles for 11 microsatellite loci in format of the Fisheries and Oceans Canada (DFO) 381-population chum salmon baseline, on their website (http://www.pac.dfo-mpo.gc.ca/science/facilities-installations/pbs-sbp/mgl-lgm/data-donnees/index-eng.html). AFSC No domain defined.