©2020 Biological and Chemical Oceanography Data Management Office.In this study, we tested the hypothesis that red urchins (Strongylocentrotus franciscanus) and lined chitons (Tonicella spp.) are redundant in the maintenance of available space, defined here as encrusting algae and bare rock. In a factorial field experiment replicated at three sites, we reduced the densities of urchins and chitons for nine months. The effects of grazers were interpreted in the context of natural temporal variation by monitoring the benthic community one year before, during, and after grazer removal.
These data were published in Elahi & Sebens (2013).
Physical data - temperature, salinity, conductivity - can also be viewed online at http://nvs.nanoos.org/Explorer and http://depts.washington.edu/fhl/wx.html
ssociated physical underwater and weather data:
Sebens, K. (2013) Percent cover by sessile invertebrates and macroalgae from removal experiments in rocky intertidal Marine Protected Areas in the San Juan Islands from 2008-2011. Biological and Chemical Oceanography Data Management Office (BCO-DMO). (Version 2013-12-10) Version Date 2013-12-10 [if applicable, indicate subset used]. http://lod.bco-dmo.org/id/dataset/472896 [access date]
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