Dictionary of ichthyology. 2009.
denil fishway — DeNiel fishway … Dictionary of ichthyology
rock-ramp fishway — a structure allowing fish to pass a barrier. Large rocks and timbers are used to build pools and small falls that mimic natural structures. This fishway only works over short distances because of the length of the channel needed for the ladder.… … Dictionary of ichthyology
vertical slot fish passage — this fishway is similar to a pool and weir ladder except that each dam has a narrow slot in it near the channel wall. The channel allows fish to swim upstream without having to leap over the dam wall. This type of … Dictionary of ichthyology
pool-and-weir ladder — a series of small dams making pools of regular length in a long, sloping channel for fish to travel around a dam. Fish jump from pool to pool in the ladder. See also rock ramp fishway, vertical slot fish passage and DeNiel fishway … Dictionary of ichthyology
