The source of this coverage data set is the fish biodiversity maps
created for The Nature
Conservancy (TNC) as part of their
Hexagon Project. Professor Peter Moyle and his graduate student, Paul
Randall, of the Department of Wildlife and Fisheries Conservation
Biology at the University of California, Davis were hired to produce
range maps for all known fish species that presently occur in
California. Each coverage denotes a separate fish species (refer to
the
species coverage key below).
The polygons are estimated to be accurate at a scale of
roughly 1:1,000,000.
Other California fish species distributions can be found
in a gallery at:
http://app.databasin.org/app/pages/galleryPage.jsp?id=099b47b7394f47b6b42764829e8a8f09