Lake Eugenia, Eugenia, Ontario, Canada A pair of juvenile smallmouth bass maintain their position in the water column they ascend the fishway in the afternoon

Mannheim weir fishway, Grand River, Kitchener, Ontario, Canada A juvenile Smallmouth Bass maintains its position in the water column and is joined by a second Smallmouth Bass as it ascends the fishway in0 the afternoon

Mannheim weir fishway, Grand River, Kitchener, Ontario, Canada A juvenile Smallmouth Bass maintains its position in the water column as it ascends the fishway in the afternoon – surface water velocity ~ 1.3 m/s