...Benjamin Negrete, Jr.; Andrew J. Esbaugh ABSTRACT One measure of hypoxia tolerance is the critical oxygen threshold, P crit , which is the point where standard metabolism can no longer be maintained through aerobic processes. Traditionally, P crit was determined using closed respirometry, whereby...

... recently become important in salmonid sea cages as cleaner fish. Little is known about the basal physiology of the lumpfish, and a characterization of thermal performance, aerobic capacity, swimming behaviour and stress response is therefore warranted. In the present study, swim tunnel respirometry...

... rhythms in genes needed to prevent and repair damage to DNA and proteins, and a daytime peak in expression of fructose-1,6-bisphosphatase, the rate-limiting enzyme for gluconeogenesis ( Oren et al., 2015 ). Together, studies of gene expression and respirometry suggest that Nematostella physiology varies...

... have previously been used in loading experiments, the cursorial guinea fowl ( Numida meleagris ) and the locomotor-generalist barnacle goose ( Branta leucopsis ). Here, using respirometry and treadmill locomotion, we investigate the energetic cost of carrying trunk loads in a diving bird, the tufted...