A large fish, the rainbow trout was introduced into fish farms in the UK from North America in the early 20th century and has now become established in rivers and lakes throughout the country. It can live in poorer quality water than our native brown trout or Atlantic salmon. A predatory fish, it feeds on insect larvae, small fish and flying insects such as mayflies and damselflies.
An introduced species, the rainbow trout is economically important and popular with anglers because of its fast growing rate and ability to live in more polluted river systems. The Wildlife Trusts work with researchers, scientists and other conservationists to monitor changes in our native wildlife to determine the effects of environmental change, such as the introduction of new species or climate change. You can help by supporting your local Trust and becoming a member; you'll find out about exciting wildlife happenings, events on your doorstep and volunteering opportunities, and be helping local wildlife along the way.
