Benthic Survey Photographs of Hawaiian Offshore Islets

NCEI Accession 0043046 contains photographic images from a 2007 survey of marine algae, invertebrate, and fish communities at ten offshore islet sites in the Main Hawaiian Islands. The dataset includes .jpg files, associated GIS files (.mxd, .lyr), and documentation, supporting visual analysis of coral and algal coverage. Quantitative results from the same survey are available in a separate NCEI accession.

Use Cases

• Assessing coral and algae types and coverage via digital photographs using new software.
• Georeferencing survey sites using the provided GPS locations and GIS files.
• Conducting visual reconnaissance of marine species for taxonomic identification.
• Comparing benthic communities across ten different offshore islet habitats.
• Supporting quantitative analysis by pairing images with separate spreadsheet data on coral coverage and fish biomass.

Strengths

• Includes photographic evidence from ten distinct survey sites, providing visual context.
• Contains geospatial files (.mxd, .lyr) for direct use in GIS software.
• Linked to a separate, quantitative dataset (NCEI Accession 0042684) for combined analysis.

Limitations

• Column names and a complete data dictionary are not provided in the available metadata.
• Conflicting last-updated dates exist between platforms (2007 vs. 2026), suggesting potential metadata errors.
• The dataset's size, row count, license, and specific authorship details are not specified.

Provenance

Source

National Oceanic and Atmospheric Administration, Department of Commerce

Collection Method

Field surveys involving reconnaissance listing, photography, specimen collection, and quantitative transect estimates.

Time Range

2007 (April 2 - September 20)

Freshness

2026-03-05 23:41:28.340636

Geography

Ten islet/offshore island sites in the Main Hawaiian Islands near Lanai, Maui, Molokai, and Oahu.