Fish & crustacean impingement

Impingement is the general term used for the collision of organisms with the filter screens protecting the water intakes. Typical fine screens have a mesh size of about 1 cm, and will retain most adult fish and crustaceans. In many power stations impinged animals are killed in large numbers. Fish kills are typically in the hundreds of thousands to millions per year, while shrimps and prawns are impinged in millions of individuals per year. Pisces is internationally recognised as expert in the prediction and minimisation of impingement effects for both environmental and operational reasons - please contact us for further information and assistance.