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fish ladder
(redirected from Fish pass)

   Also found in: Encyclopedia, Wikipedia 0.03 sec.
fish ladder
n.
A series of pools arranged like ascending steps at the side of a stream, enabling migrating fish to swim upstream around a dam or other obstruction.

fish ladder
n
(Life Sciences & Allied Applications / Fishing) a row of ascending pools or weirs connected by short falls to allow fish to pass barrages or dams
ThesaurusLegend:  Synonyms Related Words Antonyms
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


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The fish pass works by slowing the flow of water through a special concrete channel to a speed which brown trout can swim upstream against.
The Gazette can reveal that not a single one of the 89 Tees fish (75 salmon and 14 sea trout) that were electronically tagged managed to get through the fish pass at the barrage - though four entered it.
Plus there will be an inspection of top fishing beats on the Tyne and Tweed, and a visit to Durham to see the Environment Agency's fish pass on the River Wear.
 
 
 
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