fish ladder

noun

Definition of fish ladder

: a series of pools arranged like steps by which fish can pass over a dam in going upstream

Examples of fish ladder in a Sentence

Recent Examples on the Web Ice Harbor Dam is about 100 feet high, with two fish ladders and a bypass route for juvenile fish heading to the ocean. Bill Weir And Rachel Clarke, CNN, "How a dead whale gave new life to the debate over dams in the Pacific Northwest," 22 Oct. 2019 Two huge fish ladders girded with thick bars brace the powerhouse. Sallie Tisdale, Harper's magazine, "Catechism of the Waters," 10 June 2019 Since the last of the dams was constructed in the 1970s, billions have been spent on salmon recovery — establishing hatcheries, constructing fish ladders and implementing other habitat restorations initiatives. oregonlive, "Long-awaited Snake River dam assessment rejects removal, recommends increasing spill to help endangered salmon," 29 Feb. 2020 This dam, which was constructed without a fish ladder or bypass, cut off the paddlefish from their only spawning grounds upstream, which had only been discovered in the late 1970s. National Geographic, "The Chinese paddlefish, one of world's largest fish, has gone extinct," 8 Jan. 2020 Children watch a salmon head into a fish ladder at Bonneville Dam. Bill Weir And Rachel Clarke, CNN, "How a dead whale gave new life to the debate over dams in the Pacific Northwest," 22 Oct. 2019 More and better fish ladders, detours that allow fish to pass safely through the dams in ascending pools, were built. Sallie Tisdale, Harper's magazine, "Catechism of the Waters," 10 June 2019 Dams, even those with fish ladders, decimate salmon populations, as the fish make long upstream journeys to the spawning beds in which they were born in order to reproduce. Eli Francovich, The Seattle Times, "More than a viral sensation, the Salmon Cannon could bring the species back to the Upper Columbia after 90 years," 19 Aug. 2019 In theory, fish ladders operated by simulating the way migratory fish swim upstream in real life. Aja Romano, Vox, "These unanswered questions are fueling speculation about the sex offender’s life and death.," 11 Aug. 2019

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'fish ladder.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of fish ladder

1864, in the meaning defined above

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Time Traveler for fish ladder

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The first known use of fish ladder was in 1864

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Cite this Entry

“Fish ladder.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/fish%20ladder. Accessed 9 Aug. 2020.

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Rhyming Dictionary: Words that rhyme with fish ladder

Britannica.com: Encyclopedia article about fish ladder

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