5. VERTICAL DISTRIBUTION AND MIGRATION
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M. norveqko
FIG. 55. The diurnal vertical migrations, in the Firth of Clyde, of Thysanoessa raschii
during the period 21-22 November, 1963 and Meganyctiphanes norwegica in the
periods 1 P 1 5 November, 1956 end 22-23 July, 1957. The lengths of the blocks are
proportional to the numbers caught at the different depths and times.