Data on the fecundity of sea trout from the British Isles, Norway and France are reviewed.
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British Isles data are available for six stocks in England and Wales, three in Scotland and one in Ireland. The data were compared by use of a formula to link number of eggs per female with fish length for each stock, and for the stocks of each area. Comparisons are made based on predictions for fish of a range of standard lengths from 270 - 700 mm.