The design of a fish ladder significantly affects its effectiveness in promoting upstream fish passage at a dam by influencing the fish's ability and willingness to ascend the structure. A fish ladder, also known as a fishway, is a structure designed to allow fish to bypass a dam or other obstruction in a river. Key design factors include entrance location, hydraulic conditions, ladder slope, pool dimensions, and attraction flow. The entrance must be located in an area where fish naturally congregate below the dam, typically near the ....
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