Nonmigratory salmonids and tailwaters - a survey of stocking practices in the United States
A mail survey of fisheries agencies in the United States showed that 207.7 million nonmigratory salmonids were stocked in 1980 in the waters of 47 states (exclusive of the Great Lakes). Stocking in tailwaters accounted for 6.9 million or 3.3% of the total. In the South, 32.3% of all salmonids were stocked in tailwaters. Percentages stocked in tailwaters were lower in the West (1.8%), Midwest (1.5%), and Northeast (0.5%) because natural trout water is abundant in these regions. The rainbow trout ( Salmo gairdneri ) was the salmonid most commonly stocked in tailwaters, composing 95% of the fish 150 mm long or longer and 75% of the fish shorter than 150 mm. Nationally, tailwaters were more likely than other waters to be stocked with fish of the larger size.