Will nonnative fish management reduce sportfishing opportunities in the Colorado River Basin?
In general, there will be little impact to fishing. Less than 25 northern pike were removed last year. This is a very small fish population in the Green River and few anglers fish for them. The same is true for smallmouth bass in the Green River. The drought has temporally improved conditions for smallmouth bass. As a result of the drought, the Green and Colorado rivers have been clearer and warmer than normal in recent years. These factors have allowed the number of smallmouth bass to increase. However, there are still only a few large smallmouth bass in the river, and biologists expect that smallmouth bass numbers will decline when the river flows return to normal. Why were nonnative fish species introduced into the Colorado River system? Sixty-seven nonnative fish species have been introduced into the Colorado River Basin since the 1880s. At least 36 fish species, mostly game fishes from the eastern United States, were introduced between 1930 and 1950. Many of the species were inten
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