California Fish Data and Management Software

What is PISCES?

PISCES is software and data describing the best-known ranges for California's 133 native fish and numerous non-native fish. The data are compiled from multiple sources and are expert verified. It is accessible directly via the PISCES software, downloadable as geographic data layers or images from this website, or queryable from the PISCES database.

PISCES was developed with initial funding from the USDA Forest Service Region 5 and additional funding from California Department of Fish and Wildlife: Biogeographic Data Branch, in collaboration with numerous experts in fish biology and distribution in California.


PISCES is a project of the UC Davis Center for Watershed Sciences and was created by the following people:

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