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Fig. 2. Cooling chamber used to determine the freezing resistance of G.
acuticeps larvae. External ice was applied with a frozen toothpick;
internal ice was introduced by touching the caudal peduncle with a cold
needle. (A) Cross-section showing the placement of the inlet (IT) and outlet
(OT) thermocouples, magnetic stirring bar (MS), false bottom (FB) and the
cooling jacket (CJ) through which coolant from a refrigerated bath was
circulated. (B) Top view. The larva is approximately 12 mm long.