Fig. 2. Incorporation of radiolabelled phenylalanine into body protein of Nacella concinna at Rothera Point, Antarctica, after flooding dose injections at time zero. Data are expressed as d.p.m. nmol^-1 phenylalanine. (A) February (y=0.0026x-0.0346, r²=0.58); (B) July (y=0.0022x-0.0747, r²=0.59); (C) October (y=0.004x-0.1147, r²=0.67); and (D) December (y=0.0054x-0.1986, r²=0.63), where y is the protein-incorporated specific radioactivity expressed as d.p.m. nmol^-1, and x is the time in min. Data points are means ± S.E.M. N=6, except for the last two data points of (B), (C) and (D), in which N=7. All regression slopes are highly significant (P<0.001), with intercepts not significantly different from zero.

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