Movement and Distribution of Smallmouth Bass in the Middle Snake River

摘要: Abstract The movement and distribution of smallmouth bass, Micropterus dolomieui, were studied in the Snake River, a large western river, prior to impoundment. A tag recovery program was designed assess interpool movement. Smallmouth bass collected by angling electrofishing. Primacord, detonating fuse, used during late fall winter. Underwater observations made with SCUBA apparatus. Bass behavior laboratory dealt principally temperature effects, light intensity substrate. Only 8% tagged fish recaptured taken anglers; remaining 92% Ninety-nine (76%) recovered free at least 7 days found same pool or defined location which they tagged, while 22 31 outside marked had moved less than 1200 m (1,312 yds). few several kilometers upstream downstream from release point. There no signi...