Popis

Observer Trawl Data collected during 2002-2006 off West Coast of US. This data product originates from data collected by fishery observers in the West Coast Groundfish Observer Program (WCGOP), Fishery Resource Analysis and Monitoring Division (FRAM) at the Northwest Fisheries Science Center, NOAA Fisheries. The WCGOP's goal is to improve total catch estimates by collecting information on the discarded catch (fish returned overboard at-sea) of west coast groundfish species. All data were collected according to standard protocols and data quality control established by the WCGOP. The observed portion of overall catch or landings in a fishery varies by coverage level. Since all fishing operations are not observed, neither the maps nor the data can be used to characterize the fishery completely. This is especially true for rarely-occurring species and when observed sample sizes are small. We urge caution when utilizing these data due to the complexity of groundfish management and fleet harvest dynamics. Grid cells representing less than 3 vessels and less than 10 hauls or sets are not shown due to confidentiality and to ensure adequate sample size. In the limited-entry groundfish bottom trawl fishery, species discard rates (species discard weight / groundfish total catch (discard + retained weight)) are categorized by approximate quartile ranges and geo-referenced to 10 x 10 kilometer grid cells. The observed trawl towline (line drawn from the start to end location of a trawl tow) was used to allocate data to 10 x 10 kilometer grid cells for calculation. Seventeen species were represented based on combined observer data from 2002-2006. The species included in this data product are dover sole (Microstomus pacificus), sablefish (Anoplopoma fimbria), longspine thornyhead (Sebastolobus altivelis), shortspine thornyhead (Sebastolobus alascanus), lingcod (Ophiodon elongatus), arrowtooth flounder (Atheresthes stomias), English sole (Parophrys vetulus), petrale sole (Eopsetta jordani), and the rockfishes (genus Sebastes), darkblotched rockfish (S. crameri), Pacific ocean perch (S. alutus), chilipepper (S. goodei), cowcod (S. levis), bocaccio (S. paucispinis), canary rockfish (S. pinniger), widow rockfish (S. entomelas), yelloweye rockfish (S. ruberrimus), and yellowtail rockfish (S. flavidus). Purpose: This data product was developed to provide basic groundfish discard distribution information for a wide variety of audiences. The West Coast Groundfish Observer Program conducts sampling of groundfish discarded by commercial fisheries along the entire continental U.S. West Coast. The seventeen species included in this data product are among those of most interest to the fisheries management and commercial fishing communities. Data Credits: NOAA Fisheries, Northwest Fisheries Science Center, Fishery Resource Analysis & Monitoring Division, West Coast Groundfish Observer Program, Seattle, WA.

Obecné informace

• Dokumentace

  http://catalog.data.gov/dataset/nwfsc-observer-trawl-data-off-west-coast-of-us-2002-2006 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/nwfsc-observer-trawl-data-off-west-coast-of-us-2002-2006 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

• Ochrana soukromí

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

Praktické informace

• Relevantní datové katalogy

  http://catalog.data.gov/organization/noaa-gov Do you think this data is incorrect? Let us know

• Zastarávání

  data časem zastarají, ale mají časové razítko Do you think this data is incorrect? Let us know

• Zálohování dat

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

Technické informace

• Formát dat

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

Sociální informace

• Strojově čitelná metadata

  název Do you think this data is incorrect? Let us know

• Strojově čitelná metadata

  popis Do you think this data is incorrect? Let us know

• Strojově čitelná metadata

  hlavní URL Do you think this data is incorrect? Let us know

• Strojově čitelná metadata

  URL dokumentace Do you think this data is incorrect? Let us know

• Strojově čitelná metadata

  poskytovatel Do you think this data is incorrect? Let us know

• Strojově čitelná metadata

  distribuce Do you think this data is incorrect? Let us know

• Strojově čitelná metadata

  datum vydání Do you think this data is incorrect? Let us know

• Strojově čitelná metadata

  datum poslední změny Do you think this data is incorrect? Let us know

• Strojově čitelná metadata

  související časové období Do you think this data is incorrect? Let us know

• Strojově čitelná metadata

  související geografické území Do you think this data is incorrect? Let us know

• Strojově čitelná metadata

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• Strojově čitelná metadata k distribucím

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• Strojově čitelná metadata k distribucím

  popis Do you think this data is incorrect? Let us know

• Strojově čitelná metadata k distribucím

  datum vydání Do you think this data is incorrect? Let us know

• Strojově čitelná metadata k distribucím

  URL pro přístup k datům Do you think this data is incorrect? Let us know

• Strojově čitelná metadata k distribucím

  URL datové sady Do you think this data is incorrect? Let us know

• Kontakty

  http://catalog.data.gov/dataset/nwfsc-observer-trawl-data-off-west-coast-of-us-2002-2006 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/nwfsc-observer-trawl-data-off-west-coast-of-us-2002-2006 Do you think this data is incorrect? Let us know