The Osmotic Changes in Some Marine Animals

摘要: Since Bottazzi's (1897) first determinations of the osmotic pressure body fluids various marine animals many researches have been performed by other authors, particularly in reference to permeability membranes separating from its surroundings. Bottazzi (1897, 1906, 1908, b) investigated individuals belonging very different groups animals, and found that invertebrates, elasmobranchs, is similar surroundings, while blood teleosts quite different. Changing medium, most was shown change same direction (L. Fredericq, 1882, 1904; Quinton, 1897; Dakin, 1908) reach, finally, value former. The much more independent for it only about 30 percent, concentration, on transferring sea water fresh or vice versa (Dakin, 1908; Dekhuyzen, 1904: Sumner, 1905); however (fredericq, Garrey, 1905) could not field even these variations.