Composite fish diversity off southern California

Description

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.

Resources

Name Format Description Link
57 Downloadable Data http://coastalscience.noaa.gov/datasets/ccma/biogeo/cinms/Chap_4_Data/composite_fish_div.ZIP
0 The information provided on this page seeks to define how the GCMD Keywords are structured, used and accessed. It also provides information on how users can participate in the further development of the keywords. https://www.earthdata.nasa.gov/learn/find-data/idn/gcmd-keywords
0 View the complete metadata record on InPort for more information about this dataset. https://www.fisheries.noaa.gov/inport/item/39287
57 Online Resource http://coastalscience.noaa.gov/datasets/ccma/biogeo/cinms/Chap_4_Data/composite_fish_div.ZIP
0 Online Resource http://ccma.nos.noaa.gov/ecosystems/sanctuaries/chanisl_nms/
0 Online Resource http://ccma.nos.noaa.gov/products/biogeography/cinms/data/
33 NOAA Data Management Plan for this record on InPort. https://www.fisheries.noaa.gov/inportserve/waf/noaa/nos/nccos/dmp/pdf/39287.pdf

Tags

  • human dimensions
  • use/feeding habitats
  • environmental governance/management
  • benthic
  • national ocean service
  • ecosystems
  • national centers for coastal ocean science
  • biosphere
  • community dynamics
  • oceans
  • environmental monitoring
  • noaa
  • biological classification
  • marine ecosystems
  • environmental assessments
  • earth science services
  • cinms_assessment
  • fish
  • u.s. department of commerce
  • animals/vertebrates
  • earth science
  • california
  • polygons
  • doc/noaa/nos/nccos
  • marine biology
  • southern california
  • community structure
  • pelagic
  • models
  • channel islands national marine sanctuary
  • ecosystem functions
  • ecological dynamics
  • geographic information
  • species/population interactions
  • dynamic vegetation/ecosystem models

Topics

Categories