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The History and Effects of Exotic Species in San Francisco Bay
San Francisco Bay Project, Water Resources Division
J. Thompson, F. Parchaso, A. Alpine, J. Cloern, B. Cole, O. Mace, J. Edmunds, J. Baylosis, S. Luoma, F. Nichols
What have the exotic species done?
The isopod Sphaeroma quoyanum, introduced in 1893, burrows into the mud banks and thus increases the erosion rate of the salt marsh.

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Isopod Sphaeroma quoyanum
Damage from Sphaeroma quoyanum

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URL:http://sfbay.wr.usgs.gov/benthic_eco/exotic_species/what_marsherosion.html
Page Last Modified: Thursday, 13-Dec-2007 12:21:11 PST