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The Generation of Hyperbaric Oxygen Tensions in Fish

Bernd Pelster

Institut für Zoologie und Limnologie, Universität Innsbruck, A-6020 Innsbruck, Austria
Surprising inventiveness in the molecular interactions in fish hemoglobins that express the Root effect (decreased oxygen-carrying capacity at low pH) and in metabolic adaptations in swim bladder gas gland cells and retinal tissues causes local acidification of blood and generates hyperbaric oxygen tensions that drive oxygen into the swim bladder (regulating buoyancy) and ensures the oxygen supply to the avascularized retinae.

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				H. Decker and H. Nadja Negative cooperativity in Root-effect hemoglobins: role of heterogeneity Integr. Comp. Biol., October 1, 2007; 47(4): 656 - 661. [Abstract] [Full Text] [PDF]

				S. T. Boesch, H. Niederstatter, and B. Pelster Localization of the vacuolar-type ATPase in swimbladder gas gland cells of the European eel (Anguilla anguilla) J. Exp. Biol., February 1, 2003; 206(3): 469 - 475. [Abstract] [Full Text] [PDF]

				G. Kern, S. T. Bosch, E. Unterhuber, and B. Pelster Mechanisms of acid secretion in pseudobranch cells of rainbow trout (Oncorhynchus mykiss) J. Exp. Biol., September 15, 2002; 205(18): 2943 - 2954. [Abstract] [Full Text] [PDF]