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Excerpt from Observations on the Ecology of Colorado Squawfish (Ptychocheilus Lucius) In the Yampa River, Colorado, 1982Twelve Colorado squawfish were surgically implanted with radio transmitters on the Upper Yampa River between river kilometer (km) 86 and 172 in March and April, 1982. Five fish exhibited highly mobile migrations of 200-350 km by migrating from the Upper Yampa downstream to spawning areas in the lower 32 km of Yampa Canyon, wi...

Excerpt from Observations on the Ecology of Colorado Squawfish (Ptychocheilus Lucius) In the Yampa River, Colorado, 1982Twelve Colorado squawfish were surgically implanted with radio transmitters on the Upper Yampa River between river kilometer (km) 86 and 172 in March and April, 1982. Five fish exhibited highly mobile migrations of 200-350 km by migrating from the Upper Yampa downstream to spawning areas in the lower 32 km of Yampa Canyon, wi...