©2020 Biological and Chemical Oceanography Data Management Office.Percent algal substrate grazed by sea urchins in trophic cascade experiments in Gal?pagos Islands during 2012.
Data describe the percent algal substrate grazed by sea urchins in trophic cascade experiment. Treatments included full predator exclusion with 4 urchins and predator access (fence with 4 urchins) for two species of urchin (Eucidaris galapagensis and Lytechinus semituberculatus) conducted on 23 June – 1 July 2012 and 13 – 20 July 2012, respectively. Experimental concrete bases were photographed and digitized for percent cover of grazed substrate. Experiments were conducted at 10 m depth at Baltra Island, Galápagos Islands.
See Witman, J.D., et al (2015) for description of the experimental design.
Witman, J. D., Smith, F. (2021) Percent algal substrate grazed by sea urchins in trophic cascade experiments in Gal?pagos Islands during 2012 (GMR Trophic Cascades project). Biological and Chemical Oceanography Data Management Office (BCO-DMO). (Version 1) Version Date 2016-01-19 [if applicable, indicate subset used]. doi:10.26008/1912/bco-dmo.635717.1 [access date]
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