[Physiological and biochemical adaptations to respiration of hemoglobin-containing hydrobionts]

Hemoglobin content in hemolymph of mollusks, crustaceans, and insect larvae, as well as in polychaete blood, is analyzed in the context of their respiratory conditions. The total supply of hydrobionts with respiratory pigment, as well as buffer capacity of hemolymph under normal and unfavorable conditions, is comparatively evaluated. The functions and properties of invertebrate hemoglobins are discussed.