Description
The Shannon Index of diversity was calculated from National Marine Fisheries Service Groundfish Survey Program (NMFS GSP) fish trawl data. Data from 477 fishery independent trawls ranging from 55-1200 m in depth were collected June-November in 1977, 1989, 1992, 1995, and 1997-2002. Including all fish identified to the species level resulted in 189 fish species. Using ArcGIS, 5 x 5 minute grids were created and mean diversity was calculated for each grid cell containing data. Gear included a nor'eastern trawl (127 mm stretched-mesh body; 89 mm stretched-mesh codend; and 32 mm stretched-mesh codend liner) with a rubber bobbin roller which was trawled for 15-30 minutes on the bottom. Zimmerman's (2003) analysis of benthic species biomass was used to cull out the trawls that did not fish the bottom.
Resources
| Name | Format | Description | Link |
|---|---|---|---|
| Citation URL | Unknown | Online Resource | Open resource |
| Citation URL | Unknown | Online Resource | Open resource |
| http://coastalscience.noaa.gov/datasets/ccma/biogeo/cinms/Chap_4_Data/NMFS_fish_div_5min.ZIP | ZIP | Downloadable Data | Open resource |
| Citation URL | ZIP | Online Resource | Open resource |
| Global Change Master Directory (GCMD) Keywords | Unknown | 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. | Open resource |
| Full Metadata Record | Unknown | View the complete metadata record on InPort for more information about this dataset. | Open resource |
| NOAA Data Management Plan (DMP) | NOAA Data Management Plan for this record on InPort. | Open resource |
Tags
- animals/vertebrates
- benthic
- biological classification
- biosphere
- california
- channel islands national marine sanctuary
- cinms_assessment
- community dynamics
- community structure
- continent
- doc/noaa/nos/nccos
- dynamic vegetation/ecosystem models
- earth science
- earth science services
- ecological dynamics
- ecosystem functions
- ecosystems
- environmental assessments
- environmental governance/management
- environmental monitoring
- fish
- geographic information
- human dimensions
- marine biology
- marine ecosystems
- models
- national centers for coastal ocean science
- national ocean service
- noaa
- north america
- oceans
- pelagic
- polygons
- southern california
- species/population interactions
- united states of america
- u.s. department of commerce
- use/feeding habitats