EarthWorks Geospatial Catalog

Kelp Canopy: California, 1999

Author(s)
Description
This polygon shapefile depicts kelp beds along the California coast, which are a critical habitat for many important sport and commercial species of invertebrates and fishes. Kelp is also harvested by commercial and sport concerns. Until now, kelp bed area figures used in harvest regulatory processes by the State of California have been based upon hardcopy maps created from 1989 aerial photography, displaying hand drawn delineated features of the kelp canopy. The Fall 1999 project digitally remeasured the 1989 kelp maps and established new digital methods to calculate the area of the 1999 kelp canopy based on aerial, color-infrared photographs. The objective was to create a baseline that could be used to assess the effects of current and future use of coastal kelp. File reindexed to match California Department of Fish and Wildlife administrative kelp bed boundaries modified by changes to California Code of Regulations, Title 14, Section 165, effective April 1, 2014.The State of California Fish and Game Commission established and mapped kelp bed boundaries for the purpose of administering kelp harvest leases and harvest regulations (Title 14, California Code of Regulations, Section 165.5). The purpose of this coverage is to provide an easy-to-use, state-wide GIS shapefile for graphic presentation. This dataset was not intended for use in determining linear or areal dimensions of kelp distribution or for areal comparison with other kelp datasets.
Publisher
California. Department of Fish and Game. Marine Resources Region
Place(s)
California and Pacific Ocean
Subject(s)
Coasts, Marine habitats, Kelps, Algae, Remote sensing, Aerial surveys, Oceans, and Biology and Ecology
Year
1999 and 2000
Held by
Stanford
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Use and reproduction
This item is in the public domain. There are no restrictions on use.
Copyright
This work is in the Public Domain, meaning that it is not subject to copyright.
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