26 OCTOBER 1929, Page 17

MORE MIGRANT FISH Several inquiries have reached me about the

marked fish, especially sea trout, whose migrations are being especially .studied at the moment in North Britain ; and some more details may be given. Great numbers have been caught up and marked (by a small silver disc fixed to the back fin) in the Tweed. In the winter of 1928 about 600 were so marked, and no fewer than 25 per cent, recaptured, most of them, Wifortunately, in commercial nets before the fish had descended to the sea. But a few of the recaptured gave much infor- Mation. Marked fish were reported from the Tay, Forth, South Esk and from the Norfolk and Dutch coasts. If anyone ,c.omes upon a marked fish he is asked to notify the recapture, nd give informationabout the label, date, place, length, weight and condition of the fish, and to send a few dozen scales from the shoulder to The Fishery Board for Scotland, Edinburgh. The scales can be wiped off the knife on to a bit of paper and the paper folded flat.