[The effect of freezing on the electrophoretic separation of hemolymph proteins of several arthropods].

Electrophoresis in 6% or gradient polyacrylamide gel were realised with fresh and stored hemolymphs. The experiments state that there are variations in relation to storage duration, in the separation pattern of hemocyanin fractions in Astacus leptodactylus, Palinurus vulgaris and Carcinus mediterraneus. Moreover, important changements in the supplementary factor of crayfish plasma are revealed.