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Composite fish diversity off southern California

Metadata Updated: November 15, 2023

This map shows composite diversity averaged between 4 data sets: RecFIN recreational hook and line, SCCWRP trawls, NMFS benthic trawls, and kelp diver surveys. Diversity (H') was calculated independently for each of the four large datasets on a total of 364 species using the Shannon index of diversity (Shannon and Weaver, 1949). Using ArcGIS, 5 x 5 minute grids were created and mean diversity was calculated for each grid cell containing data. To provide an overall map of diversity, results from the four datasets were combined. To standardize, gridded results from each dataset were divided into quintiles with 5 denoting the greatest diversity and 1 the least diversity. The standardized diversity was averaged where more than one diversity estimate was available for a cell. Standardization re-scales the results from all datasets to the same scale. This process can remove some differences that result from variable collection methods; however, it can also minimize actual differences between habitats.

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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.

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Metadata Date October 17, 2023
Metadata Created Date November 12, 2020
Metadata Updated Date November 15, 2023
Reference Date(s) 2006-01 (publication)
Frequency Of Update asNeeded

Metadata Source

Harvested from NOS NCCOS

Additional Metadata

Resource Type Dataset
Metadata Date October 17, 2023
Metadata Created Date November 12, 2020
Metadata Updated Date November 15, 2023
Reference Date(s) 2006-01 (publication)
Responsible Party (Point of Contact, Custodian)
Contact Email
Guid gov.noaa.nmfs.inport:39287
Access Constraints Cite As: National Centers for Coastal Ocean Science, [Date of Access]: Composite fish diversity off southern California [Data Date Range],, Access Constraints: None | Use Constraints: Please reference report and source data. | Distribution Liability: 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.
Bbox East Long -114.674999
Bbox North Lat 41.488524
Bbox South Lat 28.246468
Bbox West Long -124.27473
Coupled Resource
Frequency Of Update asNeeded
Harvest Object Id ddedb877-0f64-4fcc-85d8-7f10e35a9f57
Harvest Source Id 9594655d-43d5-48eb-bc7d-86f579a54e78
Harvest Source Title NOS NCCOS
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.
Metadata Language eng
Metadata Type geospatial
Old Spatial {"type": "Polygon", "coordinates": [[[-124.27473, 28.246468], [-114.674999, 28.246468], [-114.674999, 41.488524], [-124.27473, 41.488524], [-124.27473, 28.246468]]]}
Progress completed
Spatial Data Service Type
Spatial Reference System
Spatial Harvester True

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