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FAQ Home > Biology > Is it difficult for salmon to go up fish ladders, ...

Question:

Is it difficult for salmon to go up fish ladders, and if so, why?

Answer:

Engineers design fish ladders so it will not be difficult, each step of the ladder is a gradual increase in height and there are places for fish to rest. Usually a ladder is put in a place that is difficult or impossible for the fish to pass any other way. It may be hard for the fish to find the ladder, especially in a big river.

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Source URL:

http://wfrc.usgs.gov/outreach/salmonq&a.htm

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Subjects(s):

Wildlife , Oregon , Washington

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