COMPARATIVE PHYSIOLOGICAL CHARACTERISTICS OF THE BLOOD AND HEMATOPOIETIC ORGANS OF FISH AND AQUATIC MAMMALS

摘要

The release of organic compounds in marine organisms (unicellular and multicellular algae, lower animals) is discussed as a part of more complex pheno¬menon the exchange between organisms (ecological metabolism). From this point both absolute and relative release rates are of interest. The comparison of re¬lative rates in unicellular algae, multicellular algae, invertebrates and fishes shows the decrease of release intensity in this (evolutionary) series. In multicellu¬lar algae the rates of organic matter released are influenced to some extent by environmental conditions and by light intencity especially On the other side, the release rate is not influenced significantly by the external concentration of orga¬nic metabolites Both these facts support an idea that the release of organic com¬pounds in algae is a physiological function inherent to these organisms under normal conditions.