Brook Trout

The brook trout is not native to the British Isles – it originated from America, where it is often called the brook charr. It thrives in very clean and pure rivers and streams where it can attain weights of over 10lb, but in this country you can expect to encounter 1-2lb fish. A 5lb brook trout is a monster for the British Isles.

They are quiet few and far between in this country – only rivers and stillwaters that have been stocked hold them.

Identification

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They are very close in shape to the brown trout. They have a tiny adipose fin, square tail, large dorsal fin and the mature males have and upturned lower jaw.

The main means to tell the difference between a brook trout and a brown trout is to take a look at the fins. The pectoral, anal and pelvic fins are edged in white.

They have blotches around the back and flanks. These are a very pale pink or cream, surrounded by grey. The underside of the brook trout is white or silver.

Feeding

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Insects and crustaceans are the staple diet of the brook trout, but they will also take small fish if the opportunity arises.

As these fish are stocked into waterways and lakes, there is a high chance that they can only be caught using the owner’s rules, and that will be by fly. Your choice of line and fly will have to be made once you visit the venue and understand at which depth the fish are feeding.