NOAA Point Shapefile - 100m2 Fish Density of Flower Gardens National Marine Sanctuary, United States,NF-11-08-FGBNMS, Technical Dive Cruise, August 2011, WGS84

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Frequently anticipated questions:

What does this data set describe?

Title:
NOAA Point Shapefile - 100m2 Fish Density of Flower Gardens National Marine Sanctuary, United States,NF-11-08-FGBNMS, Technical Dive Cruise, August 2011, WGS84
Abstract:
The design of this field mission is three fold: (1) to spatially characterize the distribution, abundance and size of both reef fishes and macro invertebrates within and around the waters of the Flower Gardens National Marine Sanctuary using, (2) to relate this information to in-situ data collected on associated habitat parameters and (3) to use hydroacoustics technologies for a comprehensive assessment of East and West Bank. This information collected will be used to evaluate the utility of an experimental fishing closure on one of the most pristine reefs under US jurisdiction in the tropical Western Atlantic. Data collected during this mission (pre-closure) will provide baseline information necessary to evaluate closure efficacy and assess whether the closure should become permanent.
  1. How might 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(NOS), National Center for Coastal Ocean Science (NCCOS), Center for Coastal Fisheries and Habitat Research (CCFHR), Unpublished material, NOAA Point Shapefile - 100m2 Fish Density of Flower Gardens National Marine Sanctuary, United States,NF-11-08-FGBNMS, Technical Dive Cruise, August 2011, WGS84: NOAA's Ocean Service, National Centers for Coastal Ocean Science (NCCOS), Beaufort, North Carolina.

    Online Links:

  2. What geographic area does the data set cover?
    West_Bounding_Coordinate: -93.871159
    East_Bounding_Coordinate: -93.572596
    North_Bounding_Coordinate: 27.998761
    South_Bounding_Coordinate: 27.825179
  3. What does it look like?
  4. Does the data set describe conditions during a particular time period?
    Beginning_Date: 21-Aug-2011
    Ending_Date: 30-Aug-2011
    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 Point data set. It contains the following vector data types (SDTS terminology):
      • Point
    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.
  7. How does the data set describe geographic features?
    FGBNMS2011_TechDive
    Fish Distribution in the Flower Garden Banks National Marine Sanctuary. Fish are in 100 square meter resolution and divided into three categories: Small Fish(<11cm), Medium Fish(between 11cm to 29cm), and Large Fish(>29cm). (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) Defines Geometry of shape
    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:805
    Latitude
    The angular distance north or south of the earth's equator, measured in degrees. (Source: Center for Coastal Fisheries and Habitat Research (CCFHR))
    Range of values
    Minimum:27.825179
    Maximum:27.998761
    Longitude
    The angular distance East or West from the Prime Meridian, measured in deqrees. (Source: Center for Coastal Fisheries and Habitat Research (CCFHR))
    Range of values
    Minimum:-93.572596
    Maximum:-93.871159
    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:10.973702
    Units: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:59.84798
    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:28.358978
    Units: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:99.679548
    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:771.68434
    Units: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:22.215138
    Density
    All fish in a given interval (Source: Center for Coastal Fisheries and Habitat Research (CCFHR))
    Range of values
    Minimum:0
    Maximum:108.58361
    Dist_above
    The average distance off the sea floor of fish in a given interval. (Source: Center for Coastal Fisheries and Habitat Research (CCFHR))
    Range of values
    Minimum:0
    Maximum:67.961205
    Units:meters
    DateLocal
    Average Date(EST) of the data during collection for a given interval (Source: Center for Coastal Fisheries and Habitat Research (CCFHR))
    Range of values
    Minimum:2011-08-21
    Maximum:2011-08-30
    TimeLocal
    Average Time(EST) 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
    Maximum:23:59:57
    Units:Time
    DateGMT
    Average Date(GMT) of the data during collection for a given interval (Source: Center for Coastal Fisheries and Habitat Research (CCFHR))
    Range of values
    Minimum:2011-08-22
    Maximum:2011-08-30
    TimeGMT
    Average Time(GMT) of the data during collection for a given interval (Source: Center for Coastal Fisheries and Habitat Research (CCFHR))
    Range of values
    Minimum:00:15:25
    Maximum:05:49:56
    Units:Time
    Entity_and_Attribute_Overview:
    The fish distribution table cover all of the area surveyed in May 2011 during ROV cruise and are divide into different fish classes by length.
    Entity_and_Attribute_Detail_Citation:
    Fields within fish distribution table are described as attributes within the Detailed Descriptions for the Entity

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 Commmerce (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

    2527283595 (voice)
    chris.taylor@noaa.gov
    Hours_of_Service: Monday-Friday 8:00am-4:30pm

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 and outside proposed management zones.2. To assess distribution of fish densities relative to management and ecological reserve boundaries and other differences that may be associated with management zones and habitat types, particularly as fish distributions relate to movements between habitat types.3. To assess the extent of fish density distributions in comparison with diver visual surveys and fish community assessments.

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: 2011 (process 1 of 1)
    A 120kHz scientific split-beam acoustic system(Simrad EK60)was used to collect the acoustic data. Data was record and backed up to external hard drive during survey in a *.raw file format. Transducers are hull mounted and all navigation was record in the *.raw file. All equipment offsets were applied prior to the start of the survey in the acquisition software. Survey was set at 50m line spacing for the coral caps and 100m line spacing for the other habitat within the Sanctuary. All data was processed in Echoview 5.1 and an exported *.csv file was converted to a *.shp file.
  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?
    Prior to survey, calibration was performed utilizing a tungsten sphere to get accurate target strength returns and then the calibration data was applied to the survey data.
  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?
    The fish acoustic data is for the East and West Banks for the Flower Garden National Marine Sanctuary. Surveyed predefined areas of the sanctuary in a variety of habitats.
  5. How consistent are the relationships among the observations, including topology?
    All data was scrutinized and edited for bad data returns. Apply a tracking algorithmic to detect fish in the water column. All data analyses were conducted using Echoview 5.1 software.

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: None
  1. Who distributes the data set? (Distributor 1 of 1)
    Department of Commmerce (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
    101 Piver Island Road
    Beaufort, North Carolina

    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: 29-Mar-2020
Last Reviewed: 09-Feb-2012
Metadata author:
Department of Commmerce (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

2527288751 (voice)
erik.ebert@noaa.gov
Hours_of_Service: Monday-Friday 8:00am-5:00pm EST
Metadata standard:
FGDC Content Standard for Digital Geospatial Metadata (FGDC-STD-001-1998)
Generated by mp version 2.9.48 on Tue Apr 23 10:59:51 2024