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| NAS - Nonindigenous Aquatic Species |
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Common Name: Shokihaze goby
Taxonomy: available through 
Identification: Jordan and Snyder (1902); Tomiyama (1936); Masuda et. al. (1984).
Native Range:
Marine and brackish waters in China, Japan, and Korea.
Nonindigenous Occurrences: The first report of this species was a single juvenile collected on November 3, 1997, in the San Joaquin River, California, near West Island. Three more juveniles were collected the following month in San Pablo Bay. Since that time, approximately a dozen more have been collected in San Francisco Bay from San Pablo Bay to the confluence of the San Joaquin and Sacramento rivers at the Delta as well as in the Suisun Marsh (K. Fleming, personal communication; Matern et al. 2002; Wonham et al 2000).
Means of Introduction: Probably introduced via ballast water (Fleming, personal communication).
Status: Possibly established in California. Both young-of-the-year and adults have been collected, suggesting the possibility of reproduction (Fleming, personal communication).
Impact of Introduction: Unknown. However, this species is piscivorous and may prey on native gobies and/or sculpins (Fleming, personal communicaton).
Remarks:
These gobies generally breed in shallow water areas. The shallow areas of the Bay have not been sampled. Hence, no definite conclusions can be drawn concerning reproduction in the Bay (Fleming, personal communication).
Voucher specimens: California (UCD; CAS).
Other Resources:
FishBase Fact Sheet
Author: Leo Nico and Pam Fuller
Revision Date: 4/24/2006 Citation for this information:
Leo Nico and Pam Fuller. 2009. Tridentiger barbatus. USGS Nonindigenous Aquatic Species Database, Gainesville, FL.
<http://nas.er.usgs.gov/queries/FactSheet.asp?speciesID=715> Revision Date: 4/24/2006
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