Falling Fly Populations Make British Trout Less Discerning

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“Prof Norman Maclean, of Southampton university’s School of Biological Sciences, said: ‘The days of detailed imitation flies being used are largely over, at least in the southern chalk streams. The fly hatches have been so reduced that trout will take pretty much anything they can get.” David Harrison reports on the studies of Cyril Bennett and Warren Gilchrist in their new book Silent Summer.