Definitions for "Fishway"
Keywords:  dam, baffles, upstream, migrate, ascend
A device made up of a series of stepped pools, similar to a staircase, that enables adult fish to migrate up the river past dams.
An arrangement of successive pools enabling a fish to ascend falls or a dam
a construction or modification to a barrier which enables fish to pass either upstream and/or downstream. A vertical slot fishway consists of a series of usually concrete boxes which ascend the barrier in a ladder form. The entry and exit openings to each box are narrow vertical slits which are offset to the extreme right and left and act as baffles to the flow, creating turbulence and areas of low velocity water within each box and at each entrance into the next box. Rock ramps are built by constructing a ramp of rubble through which water flows providing a series of small pools where fish can rest as they move up or down the ramp. They are usually installed for migration of small-sized fish which have some climbing ability.
A structure that provides fish with passage past an obstruction in a stream.
a man made structure to help fish move around obstacles in streams.
Keywords:  swim, manner, bit, passes, down
a structure that passes a bit of water down in a manner that allows the fish to swim up