Popis

A genetic analysis of samples from the chum salmon (Oncorhynchus keta) bycatch of the 2006 Bering Sea walleye pollock (Theragra chalcogramma) trawl fishery was undertaken to determine the overall stock composition of the sample set. Samples were genotyped for eleven microsatellite markers and results were estimated using the current chum salmon microsatellite baseline. In 2006, genetic samples were collected opportunistically as part of a special project, but sample biases have the potential to affect stock composition analysis results. Consequently, stock composition estimates apply to the sample set and may not represent the entire chum salmon bycatch. Based on the analysis of 1,367 chum salmon bycatch samples collected throughout the 2006 Bering Sea trawl fishery, North Asian (31%), East Asian (29%), and Pacific Northwest (25%) stocks dominated the sample set with smaller contributions from Western Alaska (8%) and Upper/Middle Yukon River (6%) stocks. The estimates for the 2006 chum salmon bycatch sample set were similar to the 2005 and 2009 chum salmon bycatch estimates, suggesting consistency of the regional stock contributions across years. Analysis of temporal groupings within the groundfish B season revealed changes in stock composition during the course of the season with decreasing contribution of Upper/Middle Yukon stocks over time, but leaves unanswered whether these changes are due to temporal or spatial differences in the sample set.

Obecné informace

• Dokumentace

  http://catalog.data.gov/dataset/afsc-abl-2006-chum-salmon-bycatch-sample-analysis-bering-sea Do you think this data is incorrect? Let us know

• Poskytovatel

  National Oceanic and Atmospheric Administration, Department of Commerce Do you think this data is incorrect? Let us know

Právní informace

• Právní prohlášení

  http://catalog.data.gov/dataset/afsc-abl-2006-chum-salmon-bycatch-sample-analysis-bering-sea Do you think this data is incorrect? Let us know

• Under which licence can people outside the US reuse this data?

  Creative Commons CCZero Do you think this data is incorrect? Let us know

• Obsah chráněný autorským právem

  yes, and the rights are all held by the same person or organisation Do you think this data is incorrect? Let us know

• Licence obsahu

  Creative Commons CCZero Do you think this data is incorrect? Let us know

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  nehraje roli, data se netýkají fyzických osob Do you think this data is incorrect? Let us know

Praktické informace

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  data jsou zálohována offsite Do you think this data is incorrect? Let us know

Technické informace

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  http://catalog.data.gov/api/rest/package/afsc-abl-2006-chum-salmon-bycatch-sample-analysis-bering-sea Do you think this data is incorrect? Let us know

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  standardizovaný, otevřený Do you think this data is incorrect? Let us know

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• Kontakty

  http://catalog.data.gov/dataset/afsc-abl-2006-chum-salmon-bycatch-sample-analysis-bering-sea Do you think this data is incorrect? Let us know

• Zpětná vazba k publikovaným datovým sadám

  http://www.data.gov/issue/?media_url=http://catalog.data.gov/dataset/afsc-abl-2006-chum-salmon-bycatch-sample-analysis-bering-sea Do you think this data is incorrect? Let us know