Morphology of the swim (air) biadder of a cichiid teleost: Oreochromis alcalicus grahami (Trewavas, 1983), a fish adapted to a hyperosmotic, aikaiine, and hypoxic environment; A Brief outiine of the structure and function of the swimbiadder

Perhaps no other organ in fish has received as great and sustained scientific interest as the swim (air) bladder. The principal aspects which have elicited this interest have been those related to its evolutionary origin, structure, and function. For a review of early works, see Hall (1924), Marshall (1960), Alexander (1966), Fange (1966), Copeland (1969), and Steen (1970). The biophysics of buoyancy control through regulation of gas secretion …