Good Fish Guide
Your guide to sustainable seafood
You can play a key role in securing the future of our seas and marine wildlife by making more environmentally responsible choices when buying seafood.
Our seas face a wide range of threats. Climate change, pollution, habitat and biodiversity loss are all impacting our seas; plus 90% of global fish stocks are either fully or over-exploited. All these factors combined mean that urgent action is needed to restore the health of our seas. Fish farming (aquaculture) is rapidly expanding to meet increasing demand for seafood, but if this is done badly it can also damage the environment and exacerbate these other problems.
Use the Good Fish Guide to find out which fish are the most sustainable (Green rated), and which are the least sustainable (Red rated). Make the right choice and reduce your impact – every purchase matters! Find out more about our seafood work, including how we develop our seafood ratings, plus sustainable seafood recipes and more.
You searched for "trout, rainbow"
Brown or sea and rainbow trout can be steamed or baked, whole or filleted, and is really tasty when cooked in the microwave. Also popular smoked. Not strongly flavoured but its low in fat - a third of the fat of salmon at just 135kcals per
100g and its rich in Omega 3! Brown or sea trout may be caught in the wild, but most on sale are farmed. It's a pretty close relative to the salmon. Sea trout has a number of regional names around the UK including sewin, finnock, peal, mort and white trout. Most trout on sale however, are rainbow trout which is the most popular farmed species of trout, with most production taking place in freshwater. Also a member of the salmonid family, rainbow trout is a non-indigenous species and was introduced to Europe from the USA. Rainbow trout farming was introduced into the UK in the 1950's, and now there are over 300 trout farms. There are very few self-sustaining or breeding populations in Europe. Supplies are maintained chiefly through farmed fish.
Rainbow trout is the predominant farmed trout species as brown trout is mainly produced for restocking purposes however some is available for the table. Wild sea trout populations are threatened in some areas. Only eat wild line-caught sea trout from well-managed fisheries, such as a rod & line fisheries. Avoid eating fresh sea trout caught during the breeding or spawning season from November to March inclusive. Buying organic farmed trout is the best choice as fish stocking densities are generally lower in comparison to non-organic farms, feed is sourced sustainably and fish welfare is higher. Rainbow trout is widely farmed in UK, mainly in freshwater. Farming takes place mainly in ponds, tanks or raceways with water being supplied from an adjacent river. Location of farms is determined by the proximity of a clean river to provide water. Trout are carnivorous fish whose feed relies on wild fisheries. Buying organic farmed trout is the best choice to make as fish stocking densities are generally lower in comparison to non-organic farms, feed is sourced sustainably and welfare of a high standard.
Production country — Europe
Production method — Open system (pond and raceway)
Production country — UK
Production method — Freshwater pond without recirculation
Production country — UK
Production method — Open net pen and cage