364 fish species were analyzed using the Shannon diversity index across four large datasets: RecFIN recreational hook and line, SCCWRP trawls, NMFS benthic trawls, and kelp diver surveys. The results were standardized into quintiles and averaged on a 5 x 5 minute grid to create a composite map of diversity. This dataset was produced by NOAA_NCEI and sourced from NASA EarthData.
Use Cases
- Identify marine biodiversity hotspots based on composite diversity scores.
- Compare fish community structure across different survey methodologies.
- Model the relationship between habitat type and standardized diversity estimates.
Strengths
- Integrates data from four distinct survey types, likely improving spatial coverage.
- Standardization process re-scales results from all datasets to the same quintile scale.
- Analysis includes 364 species, providing a broad taxonomic scope.
Limitations
- The standardization process may minimize actual differences between habitats.
- Row count, file formats, and column-level documentation are unknown.
- Last update date is unknown; freshness unverified.
Provenance
- Source
- NOAA_NCEI via nasa_earthdata
- Collection Method
- Diversity calculated from four survey datasets, gridded, standardized into quintiles, and averaged.
- Geography
- Southern California coastal waters