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Adult California sheephead (Semicossyphus pulcher) counts at long-term subtidal sites at San Nicolas Island, California (1981-2018)

Published by U.S. Geological Survey | Department of the Interior | Catalog Last Checked: August 01, 2026 at 03:10 AM | Dataset Last Updated: February 18, 2022 at 12:00 AM
The data represent total counts of adult California sheephead from six long-term sites at San Nicolas Island, CA between fall 1981 and spring 2018. At each site counts were made by divers swimming five 50-m by 5-m mid-water transects and five 50-m by 2-m benthic transects. The data presented here are the sum of the adult sheephead counted on all transects at a site for each sampling period. The data are from samples made in fall and spring from 1981-2018.

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