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fish ladder†
DCHP-1 (pre-1967)
Entry from the DCHP-1 (pre-1967)
This entry may contain outdated or offensive information, terms, and examples.
a device constructed at a waterfall to facilitate the upstream migration of fish to their spawning grounds.
See: fish pass
Quotations
1870
James Wyeth King [of Shubenacadi, N.S.] [invented] improvements in machines by which fish are enabled to surmount and pass darns, cascades and other obstructions in water courses, called "The King Fish Ladder."
1947
[Subheading] Fish ladders at Fraser River bottleneck promise boost to salmon industry of British Columbia.