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<br />The redside shiner feeds chiefly on aquatic and terrestrial
<br />insects but is omnivorous, and is known to eat mollusks, small crus-
<br />taceans, algae, its own eggs and larvae, and the young stages of game
<br />fishes when readily available. The fry eat diatoms, copepods, ostra-
<br />cods, and other minute plankton organisms.
<br />This species reaches a maximum length of about five inches.
<br />Most individuals are from two and one-half inches to three and one-
<br />half inches long, and the females average larger than the males.
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<br />Habitat
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<br />Conditions under which the redside shiner is found vary
<br />considerably. It occurs as frequently in creeks as it d~s in rivers
<br />and also inhabits ponds, lakes, irrigation canals, ditches, sloughs and
<br />warm springs. It prefers cool water, typically with summer tempera-
<br />tures varying from about 550 to 680 F., but it has been taken in
<br />water as cold as 440 and as wann as 750 F. The water may be very
<br />clear or turbid; the bottom may comprise stones and gravel, rubble,
<br />sand, clay or mud; the current varies from slow or none to swift; the
<br />depth of water is generally not over three feet and often less than one
<br />foot. Frequently the species is taken where vegetation is common to
<br />dense, chiefly algae, pondweeds and cress, but it. also is often found
<br />where there are no plants, particularly in lakes.
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<br />COLORADO SQUA WFISH
<br />
<br />P,ychocheilus lucius Girard
<br />
<br />Common Names: Colorado squawfish, Colorado
<br />salmon, whitefish. Colorado minnow.
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