fish ladder
1
5.0
- noun
- /fɪʃ ˈlædər/
- Specialized
:
escalera para peces
- The team plans to construct fish ladders at two impassable dams to help bring the shad fish population back to the river and restore it to its fishable classification.
Examples
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The salmon successfully navigated the fish ladder to reach their spawning grounds upstream.
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Noteworthy is that in the case of the present study, populations are physically separated by several dams along the river, all of which allow no connectivity between fragments of the river in the downstream-upstream direction, since they are not equipped with fish ladders or any other type of structure or equipment for translocation.
Academic text (2018) -
This new concept has several advantages over conventional fish ladders.
Academic text (2001) -
A migratory fish passage would also be enabled through the use of a unique fish ladder concept.
Academic text (2001) -
DFO officials blasted out the rock in the falls and installed a fish ladder.
Academic text (2007) -
Research to enable the passage of anadromous species that shun conventional fish ladders, such as sturgeons, should also be encouraged.
Academic text (2009) -
Their fish passage efforts included small dam removal, diversion improvements, screens for diversion ditches, and a fish ladder.
Academic text (2007) -
For example, you may wish to view the boats passing through the Hiram M. Chittenden Locks, just northwest of the Seattle business district, or see fish migrating the nearby fish ladders.
Academic text (1994) -
This type of modification could be designed on the basis of the practice of notching dam spillways to provide fish passage to downstream fish ladders or other structures.
Academic text (2010) -
The physical characteristics of each barrier included the presence or absence of a fish ladder, the distance to the river mouth, elevation, the barrier's height above the substrate, its height above the water surface at stream base flow on the downstream margin, its width, wetted width, length, construction material, and primary purpose.
Academic text (2013)
Synonyms
202
1.0
A frame with steps used to climb up or down
A structure that lets fish move past a dam to reach other parts of the river
A vertical passage with a ladder for moving between levels in ships or buildings
How Effective
Surface Forms
Morphology
The meaning 'a ladder-like structure for fish to pass obstacles' is directly derivable from combining 'fish' (the beneficiary) with 'ladder' (a climbing structure): a ladder for fish. This is a straightforward noun–noun compound following common English composition patterns, so a B1 learner who knows both words would very likely infer the correct meaning.
Etymology
Fish ladder is a very literal image: it is like a ladder made of small pools or steps that lets fish move up and past a dam. The picture of fish using steps helps explain why the name means 'a structure that helps fish swim upstream past obstacles'.