Key findings of a just-released report from Otago Fish & Game, suggests South Otago streams still face major problems from sediment run-off caused by winter cropping practices.

Otago Fish & Game officials say sediment pollution damaged fish and other aquatic life have been a growing concern for a decade.

A major source of in-stream sediment is winter cropping practices such as strip grazing of stock with insufficient riparian buffers or on land that is too steep.

Fish & Game want the Otago Regional Council to ramp up its monitoring and compliance work.