The effect of altered streamflow The effect of altered streamflow on fish of the Yellowstone and Tongue rivers, Montana effectofno8alteredyellow1977rich Year: 1977 collected in the Tongue were considerably larger than those collected at Intake. Additionally, the length distribution is much wider for the Intake sample than the Tongue River sample, which was taken from a spawning population and is not representative of the entire population; the Intake sample was from the total population. The average length of shovelnose migrating into the Powder River was 761 mm ( in), comparable to thos


The effect of altered streamflow The effect of altered streamflow on fish of the Yellowstone and Tongue rivers, Montana effectofno8alteredyellow1977rich Year: 1977 collected in the Tongue were considerably larger than those collected at Intake. Additionally, the length distribution is much wider for the Intake sample than the Tongue River sample, which was taken from a spawning population and is not representative of the entire population; the Intake sample was from the total population. The average length of shovelnose migrating into the Powder River was 761 mm ( in), comparable to those sampled in the Tongue River (Rehwinkel et al. 1976). 20-1 Yellowstone River Tongue River 500 600 700 Fork Length (mm) I I I I I I 10 l—\—1—I—I 1 1 20 ~i 1 I 1 I I I I r 30 Fork Lengtti (incties) Figure 7. Comparison of the fork length frequencies of shovel- nose sturgeon taken in the Tongue River with those taken in the Yellowstone River at Intake in the spring of 1975. 28


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