Filters: Tags: Ptychocheilus lucius Xyrauchen texanus (X)
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We studied the effects of three flow regimes on the activity patterns and movements of one-, three-, six-, and 36-week old Colorado pikeminnows (Ptychocheilus lucius) and two-week old razorback suckers (Xyrauchen texanus) in an experimental tank under light and dark conditions. The seven-chambered tank simulated a system of backwater habitats, which are used by the young fishes in nature. Water flows through the tank were slow, and velocities were discernable only in the vicinity of surface ports that connected each chamber. Fish movements were related to light or dark condition and activity tended to increase with age. Larvae, relatively active in daylight, moved little at night with no flow, but flow stimulated...
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Tags: Journal of Freshwater Ecology,
Ptychocheilus lucius Xyrauchen texanus,
Razorback Sucker Xyrauchen texanus
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