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    • Dominant Benthic Structure and Biological Cover Habitat Maps for West Maui and West Hawaii

    Metadata Updated: March 16, 2024

    Benthic habitat maps depict dominant substrate type and biological cover in depths between 0 and ~150 m for two priority sites in the Main Hawaiian Islands; the NOAA Habitat Blueprint West Hawaii Focus Area (WHFA) and the Hawaii Division of Aquatic Resources (DAR) West Maui priority watersheds.

    The primary data source for these maps was a 5-m resolution bathymetry synthesis grid, collected from a number of sources and maintained by the University of Hawaii at Manoa (UH) Hawaii Mapping Research Group (HMRG). Geomorphic derivatives of slope, slope of slope, rugosity and curvature were created from the bathymetry grid using the Benthic Terrain Modeler (https://esriurl.com/5754) in ArcGIS.

    New optical seafloor imagery was collected by the NOAA Coral Reef Ecosystem Program (CREP) to produce these maps, and seafloor imagery was also provided from a number of partners including the United States Geological Survey (USGS) the Nature Conservancy, NOAA Biogeography group and the Hawaii Institute of Marine Biology. All images were visually analyzed by CREP to classify dominant substrate type and biological cover.

    A Principle Component Analysis performed in ArcGIS removed highly correlated information from the suite of geomorphic surfaces derived from the bathymetry synthesis grid. This was followed by an unsupervised classification using the Iso Cluster Classification tool in ArcGIS. The resulting image was examined and manually corrected using the classification data from the analyzed seafloor imagery as validation. The resulting benthic habitat map delineates eight dominant substrates (Complex Reef, Boulder, Rubble, Mixed Substrate, Pavement, Sand, Mud, and Manmade) and six dominant biological cover types (Coral, Coralline Algae, Turf Algae, Macroalgae, Uncolonized and Unclassified) that extend from the shoreline to ~150 m.

    Access & Use Information

    License: No license information was provided. If this work was prepared by an officer or employee of the United States government as part of that person's official duties it is considered a U.S. Government Work.

    Downloads & Resources

    Dates

    Metadata Date February 29, 2024
    Metadata Created Date November 12, 2020
    Metadata Updated Date March 16, 2024
    Reference Date(s) 2016 (publication)
    Frequency Of Update notPlanned

    Metadata Source

    Harvested from NMFS PIFSC

    Other Data Resources

    Graphic Preview

    NOAA Habitat Blueprint West Hawaii Focus Area

    Additional Metadata

    Resource Type Dataset
    Metadata Date February 29, 2024
    Metadata Created Date November 12, 2020
    Metadata Updated Date March 16, 2024
    Reference Date(s) 2016 (publication)
    Responsible Party (Point of Contact, Custodian)
    Contact Email
    Guid gov.noaa.nmfs.inport:32811
    Access Constraints Cite As: Pacific Islands Fisheries Science Center, [Date of Access]: Dominant Benthic Structure and Biological Cover Habitat Maps for West Maui and West Hawaii [Data Date Range], https://www.fisheries.noaa.gov/inport/item/32811., Access Constraints: None, Use Constraints: These data are not to be used for navigation purposes. Please cite NOAA Coral Reef Ecosystem Program (CREP) when using the data. Suggested citation: Coral Reef Ecosystem Program; Pacific Islands Fisheries Science Center (2016). Dominant Benthic Structure and Biological Cover Habitat Maps for West Maui and West Hawaii. https://www.fisheries.noaa.gov/inport/item/32811 [access date], Distribution Liability: While every effort has been made to ensure that these data are accurate and reliable within the limits of the current state of the art, NOAA cannot assume liability for any damages caused by errors or omissions in the data, nor as a result of the failure of the data to function on a particular system. NOAA makes no warranty, expressed or implied, nor does the fact of distribution constitute such a warranty.
    Bbox East Long -155.822838
    Bbox North Lat 20.061727
    Bbox South Lat 19.772429
    Bbox West Long -156.100504
    Coupled Resource
    Frequency Of Update notPlanned
    Graphic Preview Description NOAA Habitat Blueprint West Hawaii Focus Area
    Graphic Preview File https://www.habitatblueprint.noaa.gov/storymap/hfa/hfa_pages/images/westHawaii/location_map.jpg
    Graphic Preview Type JPG
    Harvest Object Id d9988f1d-4a94-4eeb-9664-34961f0a4f11
    Harvest Source Id c0beac72-5f43-4455-8c33-1b345fbc2dfe
    Harvest Source Title NMFS PIFSC
    Licence NOAA provides no warranty, nor accepts any liability occurring from any incomplete, incorrect, or misleading data, or from any incorrect, incomplete, or misleading use of the data. It is the responsibility of the user to determine whether or not the data is suitable for the intended purpose.
    Lineage The Iso Cluster Unsupervised Classification tool was used to classify the three-band Principle Component Analysis (PCA) image into distinct structure and cover classes. The unsupervised classification produced a delineated image of substrate and cover of the seafloor across the entire West Hawaii and West Maui priority areas.
    Metadata Language eng
    Metadata Type geospatial
    Old Spatial {"type": "Polygon", "coordinates": [[[-156.100504, 19.772429], [-155.822838, 19.772429], [-155.822838, 20.061727], [-156.100504, 20.061727], [-156.100504, 19.772429]]]}
    Progress completed
    Spatial Data Service Type
    Spatial Reference System
    Spatial Harvester True
    Temporal Extent Begin 2006
    Temporal Extent End 2014

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