BLOOD PROTEINS AS RELATED TO OSMOREGULATION IN CRUSTACEA

1. 1. In euryhaline hyperosmoregulators such as C. maenas, E. sinensis and C. sapidus, the blood proteins content increases in diluted media while the blood osmolarity is decreased. 2. 2. On the contrary, in semi-terrestrial hyper-hypo-osmoregulators such as U. minax and O. quadratus, a high blood osmolarity happens concomitantly with a high proteins amount. 3. 3. These changes in the blood proteins concentration upon acclimation from a medium to another one more or less concentrated are discussed in terms of events linked with metabolic phenomenons related to the osmoregulatory processes and with mechanisms underlying water economy. © 1979.