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Keywords: Oxygen consumption
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Journal Articles
J Exp Biol (2021) 224 (15): jeb242614.
Published: 29 July 2021
... protocols are suitable for eliciting Ṁ O 2 ,max and estimating aerobic scope in rainbow trout. 22 3 2021 25 6 2021 © 2021. Published by The Company of Biologists Ltd 2021 Summary: Hyperoxia expands maximal oxygen consumption rate and aerobic scope in exhaustively exercised rainbow...
Journal Articles
J Exp Biol (2021) 224 (15): jeb242220.
Published: 29 July 2021
... 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...
Journal Articles
J Exp Biol (2021) 224 (9): jeb234344.
Published: 10 May 2021
.... 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...
Includes: Supplementary data
Journal Articles
J Exp Biol (2020) 223 (18): jeb231985.
Published: 25 September 2020
... 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...
Journal Articles
J Exp Biol (2020) 223 (16): jeb222703.
Published: 24 August 2020
... experimental measurement of the energetic costs of bidirectional water flow suggests that those costs may explain differential distribution of shell species occupied by hermit crabs between wave-exposed and -protected sites. Energetics Gastropod shell Hydrodynamics Oxygen consumption Waves...
Journal Articles
J Exp Biol (2020) 223 (5): jeb211250.
Published: 11 March 2020
.../ Summary: An increased blood-oxygen carrying capacity provides high-altitude ducks in the Andes with a greater reserve for O 2 delivery in hypoxia. Heart rate variability Oxygen transport Oxygen consumption Heart rate Haemoglobin Hypoxia A major role of the cardiovascular system...
Includes: Supplementary data
Journal Articles
J Exp Biol (2020) 223 (4): jeb216762.
Published: 19 February 2020
... consumption rate. The two measures of LEAK ( L N and L Omy ) were very similar ( Table 1 ), indicating that L N was not overestimated as a result of ATPase activity. The addition of antimycin A eliminated nearly all respiration, suggesting that the oxygen consumption rate observed in this experiment...
Includes: Supplementary data
Journal Articles
J Exp Biol (2019) 222 (18): jeb210633.
Published: 26 September 2019
...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...
Includes: Supplementary data
Journal Articles
J Exp Biol (2019) 222 (13): jeb204800.
Published: 05 July 2019
... 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 (Diplodus puntazzo Gmelin...
Includes: Supplementary data
Journal Articles
J Exp Biol (2019) 222 (10): jeb202390.
Published: 21 May 2019
.... 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...
Includes: Supplementary data
Journal Articles
J Exp Biol (2019) 222 (9): jeb201400.
Published: 30 April 2019
... oxidative balance, development and growth in frog (Rana temporaria) tadpoles . J. Exp. Biol.   215 , 863 - 869 . 10.1242/jeb.062745 Salin , K. , Auer , S. K. , Rey , B. , Selman , C. and Metcalfe , N. B. ( 2015 ). Variation in the link between oxygen consumption and ATP...
Journal Articles
J Exp Biol (2019) 222 (7): jeb196659.
Published: 04 April 2019
... using cutaneous respiration, making them independent of visits to the surface to collect air, but restricting them to a small size. Allometry Aquatic insect Body mass Boundary layer Cuticle Metabolic rate Oxygen consumption Insects evolved in a terrestrial environment, as indicated...
Includes: Supplementary data
Journal Articles
J Exp Biol (2018) 221 (22): jeb189993.
Published: 12 November 2018
... 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...
Journal Articles
J Exp Biol (2018) 221 (20): jeb185900.
Published: 18 October 2018
... 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...
Includes: Supplementary data
Journal Articles
J Exp Biol (2018) 221 (14): jeb180703.
Published: 16 July 2018
... flow, oxygen consumption and heart rate in rainbow trout (Oncorhynchus mykiss) . Comp. Biochem. Physiol. A Mol. Integr. Physiol.   149 , 380 - 388 . 10.1016/j.cbpa.2008.01.033 Farrell , A. P. , Thorarensen , H. , Axelsson , M. , Crocker , C. E. , Gamperl , A. K. and Cech...
Includes: Supplementary data
Journal Articles
J Exp Biol (2018) 221 (7): jeb172874.
Published: 06 April 2018
... 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 consumption to infer metabolic rate (MR) are difficult to compare across diverse species because...
Includes: Supplementary data
Journal Articles
J Exp Biol (2018) 221 (5): jeb166975.
Published: 13 March 2018
... was determined as the mean of the lowest 10% of oxygen consumption values throughout the measuring period (17–20 h), excluding outliers [values±2 s.d. from the mean ( Norin et al., 2014 )]. MMR was calculated from the slope immediately after the exhaustive chase protocol, which was always found to be the highest...
Journal Articles
J Exp Biol (2018) 221 (1): jeb170894.
Published: 04 January 2018
... 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...
Journal Articles
J Exp Biol (2018) 221 (1): jeb165225.
Published: 04 January 2018
... 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...
Journal Articles
J Exp Biol (2017) 220 (20): 3641–3648.
Published: 15 October 2017
... selected claw and are ideal for assessing the impact of a sexually selected trait on the cost of locomotion. Here, we measured the energy expenditure of clawed, declawed and artificially loaded crabs during sustained exercise by measuring oxygen consumption and blood lactate levels. We also measured blood...