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| NAS - Nonindigenous Aquatic Species |
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Common Name: blue chub
Taxonomy: available through 
Identification: Moyle (1976a); Page and Burr (1991); Bond (1994).
Size: 41 cm.
Native Range: Klamath and Lost River systems of Oregon and California (Lee et al. 1980 et seq.; Page and Burr 1991).
Nonindigenous Occurrences: This species was introduced into some Cascade lakes in Oregon (Bond 1994); specific sites included Paulina Lake and East Lake (C. Bond, personal communication; D. Logan, personal communication). It also may have been introduced into Diamond Lake, Oregon (P. M. Harris, personal communication).
Means of Introduction: Unknown. According to Logan (personal communication), Oregon introductions took place during the 1920s.
Status: Introductions into Paulina and East lakes in Oregon were unsuccessful (Logan, personal communication). Status of Diamond Lake introduction unknown.
Impact of Introduction: Unknown.
Remarks: Lee et al. (1980 et seq.) noted that it had been introduced outside its native range, but nonindigenous sites apparently were not mapped. McPhail and Lindsey (1986) listed it as introduced to the Middle Columbia drainage, but did not provide details. Paulina and East lakes are calderas and both are within the same crater, a remnant of Mt. Newberry. According to Logan (personal communication), neither lake had naturally occurring fish, though a few salmonid species have been successfully introduced. East Lake does not have an outlet, but Paulina Lake does have an outlet (Paulina Creek) which is in the Deschutes-Columbia River drainage.
Other Resources:
FishBase Fact Sheet
Author: Pam Fuller
Revision Date: 12/2/1999 Citation for this information:
Pam Fuller. 2009. Gila coerulea. USGS Nonindigenous Aquatic Species Database, Gainesville, FL.
<http://nas.er.usgs.gov/queries/FactSheet.asp?speciesID=538> Revision Date: 12/2/1999
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