Movement and feeding activity of red sea urchins (Strongylocentrotus franciscanus) adjacent to a kelp forest

@article{Mattison1976MovementAF,
  title={Movement and feeding activity of red sea urchins (Strongylocentrotus franciscanus) adjacent to a kelp forest},
  author={J. E. Mattison and Jonathan D. Trent and Alan L. Shanks and T. Akin and John S. Pearse},
  journal={Marine Biology},
  year={1976},
  volume={39},
  pages={25-30}
}
Movement and feeding were studied in a population of red sea urchins, Strongylocentrotus franciscanus (Agassiz, 1863), found within and immediately seaward of a kelp forest offshore from Santa Cruz, California, USA. Mean sea urchin movements varied from 7.5 cm/day inside the kelp forest to over 50 cm/day at 15 and 100 m outside the kelp forest. The percentage of sea urchins feeding decreased from 66% inside the kelp forest to 16 and 15% at 15 and 100 m outside the kelp forest. These data… 

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TLDR
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