[Effects of adrenaline and acetylcholine on respiratory exchanges of the cuttlefish, Sepia officinalis L., 1958, in a non-confined environment].

Sepia officinalis L, a cephalopod species, is used to study the influence of adrenalin and acetylcholin on respiratory exchanges in confined environment. The results show that in constant salinity and temperature conditions, an injection of 250 micrograms of adrenalin or acetylcholin increases its oxygen need and the rate of oxygen consumption. Adrenalin and acetylcholin have synergic effects on the respiratory exchanges in confined environment.