NOAA Point Shapefile - 100m2 Fish Density of Grand Northeast Ecological Corridor, Puerto Rico, Project NF-13-02-PR, 2013, WGS84

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Frequently anticipated questions:


What does this data set describe?

Title:
NOAA Point Shapefile - 100m2 Fish Density of Grand Northeast Ecological Corridor, Puerto Rico, Project NF-13-02-PR, 2013, WGS84
Abstract:
This data contains densities of fishes detected using mobile fisheries sonar on board the NOAA Ship Nancy Foster. The data were acquired in concert with a multibeam bathymetry survey of Grand Northeast Ecological Corridor. Fish densities are presented by size classes, corresponding to individual lengths inferred from the intensity of acoustic target return, in units of fish per 100 square meters.
  1. How should this data set be cited?

    Department of Commerce (DOC), National Oceanic and Atmospheric Administration (NOAA), National Ocean Service (NOS), National Center for Coastal Ocean Science (NCCOS), Center for Coastal Fisheries and Habitat Research (CCFHR), Unpublished material, NOAA Point Shapefile - 100m2 Fish Density of Grand Northeast Ecological Corridor, Puerto Rico, Project NF-13-02-PR, 2013, WGS84: NOAA's Ocean Service, National Centers for Coastal Ocean Science (NCCOS), Beaufort, North Carolina, United States.

    Online Links:

  2. What geographic area does the data set cover?

    West_Bounding_Coordinate: -65.745752
    East_Bounding_Coordinate: -65.456483
    North_Bounding_Coordinate: 18.482206
    South_Bounding_Coordinate: 18.366648

  3. What does it look like?

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

    Beginning_Date: 05-Mar-2013
    Ending_Date: 26-Mar-2013
    Currentness_Reference: ground condition

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

  6. How does the data set represent geographic features?

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

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

      • Point (12435)

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

      Horizontal positions are specified in geographic coordinates, that is, latitude and longitude. Latitudes are given to the nearest 0.000001. Longitudes are given to the nearest 0.000001. Latitude and longitude values are specified in Decimal degrees.

      The horizontal datum used is D_WGS_1984.
      The ellipsoid used is WGS_1984.
      The semi-major axis of the ellipsoid used is 6378137.000000.
      The flattening of the ellipsoid used is 1/298.257223563.

  7. How does the data set describe geographic features?

    PR2013_120kHz_Final
    Fish Distribution/Densities within and around the Grand Northeast Ecological Corridor, Puerto Rico, 2013. Fish are divided into three size classes small(<11cm), medium(11cm-29cm), and Large(>29cm). Each point represents 100 square meter interval and the fish within that interval. (Source: Center for Coastal Fisheries and Habitat Research (CCFHR))

    FID
    Unique Feature Identifier (Source: ERSI)

    Sequential unique whole numbers that are automatically generated.

    Shape
    Geometric Shape (Source: ERSI)

    Coordinates defining the features

    Interval
    Area of the survey divided into 100 meter square sections (Source: Center for Coastal Fisheries and Habitat Research (CCFHR))

    Range of values
    Minimum:1
    Maximum:2004

    MedLat
    The angular distance north or south of the earth's equator, measured in degrees. The center point of the 100 meter squared intervals. (Source: Center for Coastal Fisheries and Habitat Research (CCFHR))

    Range of values
    Minimum:18.366648
    Maximum:18.482206

    MedLon
    The angular distance East or West from the Prime Meridian, measured in degrees. The center point of the 100 meter squared intervals. (Source: Center for Coastal Fisheries and Habitat Research (CCFHR))

    Range of values
    Minimum:-65.456483
    Maximum:-65.745723

    Sm_Fish
    Average Size of Small Fish <11cm in a given interval. (Source: Center for Coastal Fisheries and Habitat Research (CCFHR))

    Range of values
    Minimum:0
    Maximum:10.998159
    Units:Centimeter(cm)

    Sm_Density
    Density of Small Fish(<11cm) in a given interval. (Source: Center for Coastal Fisheries and Habitat Research (CCFHR))

    Range of values
    Minimum:0
    Maximum:14.340488

    Md_Fish
    Average Size of Medium Fish between 11cm and 29cm in a given interval (Source: Center for Coastal Fisheries and Habitat Research (CCFHR))

    Range of values
    Minimum:0
    Maximum:28.967345
    Units:Centimeter(cm)

    Md_Density
    Density of Medium Size Fish(between11cm and 29cm) in a given interval (Source: Center for Coastal Fisheries and Habitat Research (CCFHR))

    Range of values
    Minimum:0
    Maximum:10.146954

    Lg_Fish
    Average Size of Large Fish >29cm in a given interval (Source: Center for Coastal Fisheries and Habitat Research (CCFHR))

    Range of values
    Minimum:0
    Maximum:785.417781
    Units:Centimeter(cm)

    Lg_Density
    Density of Large Fish >29cm in a given interval (Source: Center for Coastal Fisheries and Habitat Research (CCFHR))

    Range of values
    Minimum:0
    Maximum:10.707235

    Density
    Total density of fish for the given interval. (Source: Center for Coastal Fisheries and Habitat Research (CCFHR))

    Range of values
    Minimum:0
    Maximum:24.356681

    Dist_above
    Average distance above the bottom of the fish within a given interval (Source: Center for Coastal Fisheries and Habitat Research (CCFHR))

    Range of values
    Minimum:0
    Maximum:362.075746
    Units:Meters(m)

    DateLocmin
    Date of the data during collection for a given interval in EST (Source: Center for Coastal Fisheries and Habitat Research (CCFHR))

    Range of values
    Minimum:2013-03-05
    Maximum:2013-03-27

    TimeLocmin
    Eastern Standard Time of the data during collection for a given interval (Source: Center for Coastal Fisheries and Habitat Research (CCFHR))

    Range of values
    Minimum:00:00:04.96
    Maximum:23:59:55.52

    DateGMTmin
    Date of the data during collection for a given interval in Greenwich Mean Time (Source: Center for Coastal Fisheries and Habitat Research (CCFHR))

    Range of values
    Minimum:2013-03-06
    Maximum:2013-03-27

    TimeGMTmin
    Greenwich Mean Time of the data during collection for a given interval (Source: Center for Coastal Fisheries and Habitat Research (CCFHR))

    Range of values
    Minimum:00:00:03.19
    Maximum:23:59:50.39

    InputFile
    The originating acoustic data file (Source: Center for Coastal Fisheries and Habitat Research (CCFHR))

    Name of the original data file


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?

    Department of Commerce (DOC), National Oceanic and Atmospheric Administration (NOAA), Nation Ocean Service (NOS), National Centers for Coastal Ocean Science (NCCOS), Center for Coastal Fisheries and Habitat Research (CCFHR), Applied Ecology and Restoration Research Branch
    Attn: Chris Taylor
    Ecologist
    101 Pivers Island Road
    Beaufort, North Carolina 28516

    2527283595 (voice)
    chris.taylor@noaa.gov

    Hours_of_Service: Monday-Friday 8:00am - 4:30pm EST


Why was the data set created?

1. To design and implement a mobile fisheries sonar survey in concert with multibeam echosounder hydrographic surveys to assess and map fish densities and biomass within management priority areas. 2. To assess distribution of fish densities relative to management areas and habitat types. 3. To assess location and size of purported reef fish spawning aggregations.


How was the data set created?

  1. From what previous works were the data drawn?

  2. How were the data generated, processed, and modified?

    Date: 2013 (process 1 of 4)
    Acoustic data was collected aboard the NOAA Ship Nancy Foster using 120-7C splitbeam transducer. The Kongsberg 120-7C transducer was hull mounted aboard the R/V Nancy Foster. Kongsberg ES transceivers and Simard EK60 software was used in the data acquisition. Data was collected during all shifts of multibeam survey.

    Date: 2013 (process 2 of 4)
    Echoview 5.3 was used in this step of the data processing. The EK60 .raw file format was edited for erroneous ping returns and acoustic noise. Fish were track using a tracking algorithm and the fish tracks were export in a .csv format.

    Date: 2012 (process 3 of 4)
    An acoustic processing script(V6.5)was used to calculate the density and size of fish through out the water column. Then projected(WGS84) in 100 square meter resolution in an ESRI shapefile.

    Date: 2013 (process 4 of 4)
    Arc Catalog was used to merge the daily shapefiles into one cruise shapefile. Metadata was added using arc catalog.

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


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

  1. How well have the observations been checked?

  2. How accurate are the geographic locations?

  3. How accurate are the heights or depths?

  4. Where are the gaps in the data? What is missing?

    These data consist of fish densities within and around the Grand Northeast Ecological Corridor, Puerto Rico. The data was collected during corresponding multibeam operations. The scientific echosounders were calibrated using standard calibrations techniques(FOOTE et. al. 1981).

  5. How consistent are the relationships among the observations, including topology?

    Not applicable


How can someone get a copy of the data set?

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

Access_Constraints: Please cite any use of this data.
Use_Constraints: Not for Navigation

  1. Who distributes the data set? (Distributor 1 of 1)

    Department of Commerce (DOC), National Oceanic and Atmospheric Administration (NOAA), Nation Ocean Service (NOS), National Centers for Coastal Ocean Science (NCCOS), Center for Coastal Fisheries and Habitat Research (CCFHR), Applied Ecology and Restoration Research Branch(AERR)
    Attn: Chris Taylor
    101 Piver Island Road
    Beaufort, North Carolina 28516

    2528380833 (voice)

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

    Offline Data

  3. What legal disclaimers am I supposed to read?

    These data were prepared by an agency of the United States Government. Neither the United States Government nor any agency thereof, nor any of their employees, make any warranty, expressed or implied, or assumes any legal liability or responsibility for the accuracy, completeness, or usefulness of any information, apparatus, product, or process disclosed, or represents that its use would not infringe privately owned rights. Reference therein to any specific commercial product, process, or service by trade name, trademark, manufacturer, or otherwise does not necessarily constitute or imply its endorsement, recommendation, or favoring by the United States Government or any agency thereof. Any views and opinions expressed herein do not necessarily state or reflect those of the United States Government or any agency thereof. Although all data have been used by NOAA, no warranty, expressed or implied, is made by NOAA as to the accuracy of the data and/or related materials. The act of distribution shall not constitute any such warranty, and no responsibility is assumed by NOAA in the use of these data or related materials.NOAA makes no warranty regarding these data, expressed or implied, nor does the fact of distribution constitute such a warranty. NOAA can not assume liability for and damages caused by any errors or omissions in these data, nor as a result of the failure of these data to function on a particular system.

  4. How can I download or order the data?


Who wrote the metadata?

Dates:
Last modified: 18-Sep-2014
Metadata author:
Department of Commerce (DOC), National Oceanic and Atmospheric Administration (NOAA), Nation Ocean Service (NOS), National Centers for Coastal Ocean Science (NCCOS), Center for Coastal Fisheries and Habitat Research (CCFHR), Applied Ecology and Restoration Research Branch
Attn: Erik Ebert
101 Piver Island Road
Beaufort, North Carolina 28516

2527288751 (voice)
erik.ebert@noaa.gov

Hours_of_Service: Monday-Friday 8:00am-5:00pm EST
Metadata standard:
FGDC Content Standards for Digital Geospatial Metadata (FGDC-STD-001-1998)


Generated by mp version 2.9.13 on Fri Nov 21 10:43:32 2014