Fish wheel

A fishing camp in Alaska, complete with drying shed and bear-proof cache on stilts. Water flow is from left to right here, and a water wheel basket is rising out of the water counter-clockwise.

A hand-tinted postcard image of a fish wheel on the lower Columbia River around 1910, facing upstream. Fish are channeled by weir to the left into pathway of the wheel.

A fish wheel is a device for catching fish which operates much as a water-powered mill wheel. A wheel complete with baskets and paddles is situated on the river, usually upon a floating dock. The wheel rotates due to the current of the stream pressing the bottom basket or paddle that has swung down into the water. The baskets on the wheel, swinging downstream only at the speed of the current or more slowly, capture fish actively swimming upstream and also can capture fish simply drifting.

单词	Fishwheels
释义	Fishwheels 英语百科 Fish wheel A fish wheel is a device for catching fish which operates much as a water-powered mill wheel. A wheel complete with baskets and paddles is situated on the river, usually upon a floating dock. The wheel rotates due to the current of the stream pressing the bottom basket or paddle that has swung down into the water. The baskets on the wheel, swinging downstream only at the speed of the current or more slowly, capture fish actively swimming upstream and also can capture fish simply drifting.
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Fishwheels

Fish wheel