...) proliferation, elicited by 2 weeks of softwater exposure, impairs the diffusion of respiratory gases across the gill. The proliferation of CCs in softwater fish was verified using light microscopy, and its impact on respiratory gas transfer was assessed in vivo by continuous monitoring of arterial blood and pH...

... of this study demonstrated (i) that impairment of respiratory gas transfer coincides with CC proliferation, (ii) that O 2 and CO 2 transfer are influenced differently and (iii) that partial compensation is achieved through physiological adjustments. * To whom reprint requests should be addressed. 8...

... by a reduction in (approximately 3–8 kPa depending on the dose injected), an increase in (approximately 0.03–0.07 kPa) and a decrease in pHa (approximately 0.02–0.12 pH units). These changes, indicative of impaired gas transfer, occurred despite obvious hyperventilation based on measurements of buccal pressure...