Respiratory gas exchange
- Red blood cell carbonic anhydrase mediates oxygen delivery via the Root effect in red drum
Summary: Biochemical and metabolic evidence supports a role for red blood cell carbonic anhydrase activity in dictating the rate of O2 delivery in red drum (Sciaenops ocellatus).
- Ionoregulatory aspects of the hypoxia-induced osmorespiratory compromise in the euryhaline Atlantic killifish (Fundulus heteroclitus): the effects of salinity
Summary: In the euryhaline killifish Fundulus heteroclitus, ionoregulatory responses to acute hypoxia involve decreases in gill ion flux and permeability when in freshwater and seawater, but increases when in isosmotic salinity.
- The closed spiracle phase of discontinuous gas exchange predicts diving duration in the grasshopper Paracinema tricolor
Summary: The ability to tolerate periods of spiracular closure in Paracinema tricolor grasshoppers can facilitate predation avoidance via diving or be used for exploiting underwater resources.