RACE Groundfish Survey Data

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Frequently-anticipated questions:

What does this data set describe?

Title: RACE Groundfish Survey Data
Abstract:
The Resource Assessment and Conservation Engineering Division (RACE) of the Alaska Fisheries Science Center (AFSC) conducts bottom trawl surveys to monitor the condition of the demersal fish and crab stocks of Alaska.
  1. How should this data set be cited?

    2. Alaska Fisheries Science Center, December 2007, RACE Groundfish Survey Data: www.afsc.noaa.gov.

    Online Links:

  2. What geographic area does the data set cover?

    3. Aleutian Islands, Bering Sea, Gulf of Alaska

    West_Bounding_Coordinate: 170.6
    East_Bounding_Coordinate: -130
    North_Bounding_Coordinate: 63.648352
    South_Bounding_Coordinate: 48.516500

  3. What does it look like?

  4. Does the data set describe conditions during a particular time period?

    5. Beginning_Date: 1982
    Beginning_Time: May
    Ending_Date: 2007
    Ending_Time: August
    Currentness_Reference: ground condition

  5. What is the general form of this data set?

    6. Comma delimited files including latitude and longitude fields.

  6. How does the data set represent geographic features?

    1. How are geographic features stored in the data set?

      2. This is a Point data set. It contains the following vector data types (SDTS terminology):

    2. What coordinate system is used to represent geographic features?

  7. What are the data fields?

    8. LATITUDE
    Start latitude of the haul in decimal degrees.

    LONGITUDE
    Start longitude of the haul in decimal degrees.

    STATION
    RACE database station id. In the Eastern Bering Sea these stations have remained constant from the beginning of this time series. In the other regions sampling locations vary and are identified by the station grid cell in which the haul took place. (Source: RACE)

    STRATUM
    RACE database statistical area used for analyzing the data. Strata were designed using bathymetry and other measures of habitat. (Source: RACE)

    YEAR
    Four digit year.

    DATETIME
    Date and time of the start of the haul.

    WTCPUE
    The quantity of a species caught is standardized by calculating kilograms caught per hectare swept called catch per unit effort or weight CPUE.

    NUMCPUE
    The quantity of a species caught is standardized by calculating number of species caught per hectare swept called catch per unit effort or number CPUE.

    COMMON
    Common name of a species.

    SCIENTIFIC
    Taxonomic name of a species.

    SID
    RACE database species id number. (Source: RACE)

    BOT_DEPTH
    Bottom depth in meters.

    BOT_TEMP
    Bottom temperature in degrees Celsius.

    SURF_TEMP
    Surface temperature in degrees Celsius.

    VESSEL
    RACE database vessel id number. (Source: RACE)

    CRUISE
    RACE database cruise id number. (Source: RACE)

    HAUL
    RACE database haul id number. (Source: RACE)

Who produced the data set?

  1. Who are the originators of the data set? (may include formal authors, digital compilers, and editors)

  2. Who also contributed to the data set?

  3. To whom should users address questions about the data?

    4. Alaska Fisheries Science Center, RACE Division
    7600 Sand Point Way NE bldg 4
    Seattle, WA 98115
    USA

    Bob.Lauth@noaa.gov
    Mark.Wilkins@noaa.gov

    Contact_Instructions:
    For questions about the Eastern Bering Sea surveys and data contact Bob Lauth.
    For questions about the Gulf of Alaska or Aleutian Islands surveys contact Mark Wilkins.

Why was the data set created?

The data set was developed to describe the temporal distribution and abundance of commercially and ecologically important groundfish species, examine the changes in the species composition of species over time and space, and describe the physical environment of the groundfish habitat.

How was the data set created?

  1. From what previous works were the data drawn?
  2. How were the data generated, processed, and modified?
    Go to http://www.afsc.noaa.gov/RACE/surveys/cruise_results.htm
    Go to http://access.afsc.noaa.gov/pubs/search.cfm and search for "groundfish survey"

  3. What similar or related data should the user be aware of?

How reliable are the data; what problems remain in the data set?

How can someone get a copy of the data set?

Are there legal restrictions on access or use of the data?

Access_Constraints: Public
Use_Constraints: Cite data source.

  1. Who distributes the data set?

    Alaska Fisheries Science Center

  2. What's the catalog number I need to order this data set?

    Downloadable Data

  3. What legal disclaimers am I supposed to read?

  4. How can I download or order the data?

    Go to <http://www.afsc.noaa.gov/RACE/groundfish/survey_data/default.htm>

Who wrote the metadata?

Dates:
Last modified: 30-Nov-2007
Metadata author:
Alaska Fisheries Science Center
c/o Angie Greig
7600 Sand Point Way NE bldg 4
Seattle, WA 98115

angie.greig@noaa.gov

Metadata standard:
FGDC Content Standards for Digital Geospatial Metadata (FGDC-STD-001-1998)
Metadata extensions used:

Generated by mp version 2.8.6 on Wed Mar 14 10:32:37 2007