3.4.6 Fish passes / Fish ways

3.4.6 Fish passes / Fish ways

A fish pass is an inbuilt arrangement in a headwork or barrage or a dam facilitating the upstream migration of fishes to reach their spawning grounds. Normally there is a provision of more than one pass in a structure. The barrages or head works constructed after 1950’s a provision of ‘fish passes’ or ‘fish ladders’ has been made. A fish pass must be attractive, accessible and must afford an easy passage for the fish. In a typical fish pass the water flow is usually fast, invariably shallow and turbulent and the fish find sanctuary behind the projections, ultimately move their head out and will come out the move upstream.

Last modified: Thursday, 17 November 2011, 7:15 AM