9490 - Laserfiche WebLink

Home Browse Search

1 1 1 1 r Largemouth bass were ranked 7th on the list of 28 nonnative fish species considered to adversely impact the native fishes in the Colorado River Basin (Hawkins and Nesler 1991). 6. Bluegill: The native distribution is in eastern and central North America from the Great Lakes to the Gulf of Mexico. Bluegill have been widely introduced in the Colorado River Basin in habitats similar to and often in association with largemouth bass. Although, not stocked directly into the mainstem rivers, fish that escape from standing waters move into low velocity habitats (the same habitats used by young endangered fishes). Their diet includes other fishes. Bluegill were ranked 11th on the list of 28 nonnative fish species considered to adversely impact the native fishes in the Colorado River Basin (Hawkins and Nesler 1991). 7. Black crappie: The native distribution is from Florida to Virginia, south along the Gulf north to North Dakota and east to the Appalachi species has been introduced in standing waters River Basin. Black crappie were not identified Hawkins and Nesler, however recent capture of 1 areas in the Green River have raised concern ab eater). 1 1 r 1 r L' f 8. Channel catfish: primarily the central the United States. It portions of the Atlant the mainstem rivers, 1 River. Their diet inc 1st on the list of 28 impact the native fish Nesler 1991). The native distribution drainages (Mississippi a s native distribution ma is Coast. This species akes, reservoirs, and po Ludes other fishes. Cha nonnative fish species c es in the Colorado River along the Atlantic Coast Coast to central Texas, an Mountains. This of the Upper Colorado as a problem is 1991 by arge numbers in nursery out this piscivore (fish of this species is nd Missouri Rivers) of y have also included has been introduced into nds in the Upper Colorado nnel catfish were ranked onsidered to adversely Basin (Hawkins and 9. Red shiner: The native distribution is in the Mississippi and Gulf drainages, from South Dakota through Illinois and from Louisiana westward into northern Mexico. This fish became established throughout the Colorado River Basin primarily through bait bucket transfers (being used as a baitfish, but released into a water where it did not previously occur). Known to eat larvae (newly hatched) endangered fishes. Red shiner were ranked 2nd on the list of 28 nonnative fish species considered to adversely impact the native fishes in the Colorado River Basin (Hawkins and Nesler 1991). 10. Mosquitofish: Their native distribution is in the central United States from southern Illinois and Indiana south to Veracruz, Mexico and Florida, and north along Atlantic slope to southern New Jersey. This fish has been introduced extensively in the Upper Basin for mosquito control. Occurs in standing waters and low velocity river habitats. Occasionally eats other fish, probably competes with native fishes for 24