... conditions and exhibits a non-additive, antagonistic interaction resulting in higher survival when simultaneously exposed to high salinity and acute heat stress. Here, we investigated the response of T. californicus in activity and oxygen consumption under simultaneous manipulation of salinity...

... emersion. Tidal crabs exhibited an endogenous rhythm of oxygen consumption during continuous submersion with lower oxygen consumption during periods of anticipated emersion, which was not detected in non-tidal crabs. During emersion, tidal crabs were able to buffer apparent changes in acid–base balance...

..., such that there were no differences in recovery dynamics between treatments for any of these variables ( Figs 3 and 4 ). Fig. 5. Excess post-exercise oxygen consumption (EPOC) in rainbow trout exhaustively exercised under normoxia (∼100% air saturation) or hyperoxia (∼200% air saturation). All values...

.... Therefore, we hypothesized that the medullary raphe modulates heat gain and loss thermoeffectors in birds. We investigated the effect of glutamatergic and GABAergic inhibition in this specific region on body temperature ( T b ), oxygen consumption (thermogenesis), ventilation (O 2 supply in cold, thermal...

... assessed dehydration stress tolerance in diapausing and developing Austrofundulus limnaeus embryos. We measured oxygen consumption rates under aquatic and aerial conditions to test the hypothesis that there is a trade-off between water retention and oxygen permeability. Diapausing embryos survive...

...). The slope of the oxygen concentration with time yielded the oxygen consumption rate. An empty chamber was used as the control for each trial; these values were subtracted from the metabolic measures of the crabs ( Cech, 1990 ). The cost of coping with the bidirectional water flow was calculated...

... variability Oxygen transport Oxygen consumption Heart rate Haemoglobin Hypoxia A major role of the cardiovascular system is to maintain adequate delivery of O 2 to the tissues to support rates of O 2 consumption ( V̇ O 2 ) both at rest and during periods of increased activity. This becomes...

... with DatLab 6.1.0.7 data acquisition software (Oroboros Instruments, Innsbruck, Austria). Respiration rates (pmol min −1  mg −1 ) were calculated by measuring the rate of oxygen consumption (pmol min −1 ) and dividing by the mass of gill tissue placed into the respirometer chamber (mg). Non-mitochondrial...

...Jessica E. Reemeyer; Bernard B. Rees ABSTRACT The critical oxygen tension ( P crit ) for fishes is the oxygen level below which the rate of oxygen consumption ( Ṁ O 2 ) becomes dependent upon ambient oxygen partial pressure ( P O 2 ). We compare multiple curve-fitting approaches to estimate P crit...

... gar, Atractosteus tropicus . Am. J. Physiol. Regul. Integr. Comp. Physiol.   311 , R689 - R701 . 10.1152/ajpregu.00022.2016 Cerezo , J. and García García , B. ( 2004 ). The effects of oxygen levels on oxygen consumption, survival and ventilatory frequency of sharpsnout sea bream...

.... The lachrymal salt gland facilitates excretion of excess sodium (Na + ) and chloride (Cl − ) ions through active transport mechanisms. We investigated body fluid dynamics, oxygen consumption ( V̇ O 2 ) and osmotic status of terrapins exposed to an acute increase in salinity (12 to 35 psu) at 10 and 25°C to gain...

... differentially, and fish with a high cost may alter dispersal patterns. Oxygen consumption Temperature Exercise Locomotion Acclimation Allocation trade-off Locomotor performance is closely related to ecological success and fitness by influencing foraging, predator escape, dispersal...

... Biology . Bartholomew , G. A. and Casey , T. M. ( 1977 ). Body temperature and oxygen consumption during rest and activity in relation to body size in some tropical beetles . J. Therm. Biol.   2 , 173 - 176 . 10.1016/0306-4565(77)90026-2 Bäumer , C. , Pirow , R...

... high-temperature events. Therefore, we measured the metabolic response (mass-specific rate of oxygen consumption, Ṁ O 2 ) to thermal ramping (21–29°C) and the upper thermal tolerance limit ( U TL ) of two intertidal triplefin fishes ( Bellapiscis medius and Forsterygion lapillum ) under hyperoxia...

... hibernate with T b of 28°C. During the active season, oxygen consumption may vary 25-fold with little or no change in T b . During the austral winter, tenrecs are consistently torpid but the depth of torpor may vary. A righting assay revealed that T b contributes to but does not dictate activity status...

... demonstrate a high metabolic sensitivity to an acute temperature increase, as well as the metabolic responses to stress. Gastrointestinal Teleost Oxygen consumption Metabolism Energy expenditure The gut is a multifunctional organ system responsible for a range of crucial, intricately linked...

... very small organisms, including our model system, plant seeds. Respirometer Constant volume Q 2 technology Oxygen consumption Metabolism Seed biology One of the basic processes of life is the oxidation of substrates, termed metabolism ( Kleiber, 1961 ). Simple measures of O 2...

... max ) and metabolic measurements in Atlantic salmon. (A) CT max for diploid (grey) and triploid (black) fish across acclimation temperatures. Values are means±95% confidence intervals. Lower case letters denote differences within a ploidy across acclimation temperatures. (B) Oxygen consumption rate...

... energy, thus decreasing the likelihood of survival. In this study hatchlings were run on a treadmill for 200 or 500 m to investigate the physiological impacts of disorientation crawling in loggerhead ( Caretta caretta ) and green ( Chelonia mydas ) sea turtle hatchlings. Oxygen consumption, lactate...

... the physiological responses above and below T crit for a small tree-dwelling bat ( Chalinolobus gouldii , ∼14 g) that is often exposed to sub-zero temperatures during winter. Through simultaneous measurement of heart rate ( f H ) and oxygen consumption ( V̇ O 2 ), we show that the relationship between oxygen...