Abbott, I.A. & Hollenberg, G.J. 1976. Marine Algae Of California. California: Stanford University Press.

Castro, P. 2008. Marine Biology, Seventh Edition. New York: McGraw-Hill Inc.

Druehl, L. 2000. Pacific Seaweeds: A guide to Common Seaweeds of the West Coast. BC Canada: Harbour Publishing.

Department of Biology Penn State University. April 8th, 2008. http://courses.bio.psu.edu/fall2005/biol110/tutorials/tutorial30.htm

Friends of the San Juans.  April 8th, 2008. http://www.sanjuans.org/EelgrassHealth.htm

Harbo, R.M.1999. Whelks to Whales: Coastal Marine Life of the Pacific Northwest. BC Canada: Harbour Publishing.

Mattila, J., G. Chaplin, M. Eilers, K. Heck, J. O’Neal and J. Valentine.  1999.  Spatial and
diurnal distribution of invertebrate and fish fauna of a Zostera marina bed and nearby unvegetated sediments in Damariscotta River, Maine (USA).  Journal of Sea Research.  41:321-32.

Sept, J.D. 1999. The Beachcombers Guide to Seashore Life in the Pacific Northwest. BC Canada: Harbour Publishing.

Shaw, L. May 2008. All photos not otherwise credited.

Waaland, R. 1977. Common Seaweeds: of the Pacific Coast. Washington: Pacific Search Press.