fish ladder

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Related to Fish pass: Fish ladders, fish bass

fish ladder

n.
A series of artificial pools arranged like ascending steps, enabling migrating fish to swim upstream around a dam or other obstruction.

fish ladder

n
(Fishing) a row of ascending pools or weirs connected by short falls to allow fish to pass barrages or dams

fish′ lad`der


n.
a series of ascending pools constructed to enable salmon or other fish to swim upstream around or over a dam.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.fish ladder - a series of ascending pools providing a passage for salmon to swim upstream past a damfish ladder - a series of ascending pools providing a passage for salmon to swim upstream past a dam
passage - a way through or along which someone or something may pass
References in periodicals archive ?
Contract notice: Project management for the fish pass on the dam Monumental and regulatory issues - Port of Can
The agency's Phil Rippon, fisheries technical specialist, said: "The presence of young salmon this far upstream has shown the immediate impact and success of the new fish pass.
PARTNERS have pooled their expertise to create a special fish pass on a picturesque stretch of river.
Alongside the turbines is a specially constructed fish pass with resting pools which was funded in partnership with Natural Resources Wales.
It will be built adjacent to a fish pass, with a separate eel and elver pass to aid the migration.
Prosecutor Neil Evans, for Natural Resources Wales, said one of its environmental crime officers had been on routine patrol at the fish pass at Llanfair TH when he saw a fisherman and two children.
This involved the construction of a fish pass on the lower River Leven in 2007, allowing fish to reach spawning grounds upstream.
WORK has been completed on the installation of a fish pass on Warwickshire's River Sowe at Stoneleigh Gauging weir, which allows migratory fish and eels passage above the weir for the first time since it was constructed in 1951.
WORK has started on a new fish pass to bring a river up to European standards.
About 500 salmon now get through the giant fish pass on the Barrage in the search for their home waters to spawn in.
Liverpool Canal Link, TorrsWeir Fish Pass and River Mersey Fish and Wildlife Refuge and the Pride in our Promenades project have all been nominated for the 2010Waterways Renaissance Awards.
The project consists of a pool and traverse fish pass channel, and a head race channel supplying water to the generating equipment.