... Highlighted Article: Oxygen consumption rates of European eels exposed to different combinations of temperature and pressure during sustained swimming indicate that current estimates of energy demand during their spawning migration are probably overestimated. Anguilla anguilla Respirometry Swim...

... and Forsterygion varium ) . High-resolution respirometry coupled with fluorometric measurements of mitochondrial membrane potential (mtMP) permitted assessment of differences in mitochondrial function and integrity in response to intermittent hypoxia and anoxia. Traditional steady-state measures of respiratory...

... of swimming at a given flow treatment ( Korsmeyer et al., 2002 ). Intermittent-flow respirometry was used to provide a measurement of oxygen consumption rate as an approximation for the fishes' metabolic rates ( Nelson, 2016 ). Oxygen consumption was recorded in 12 min cycles. Each cycle consisted...

... the differing capacities of lizards to depress body temperature ( T b ) through evaporative cooling via panting. Here, we link panting and T b depression with rates of evaporative water loss and its metabolic costs under high heat loads. We used flow-through respirometry to measure evaporative water loss rates...

... impairs nutrient absorption. Highlighted Article: Long-term winter food deprivation in sardines elicits energy-saving mechanisms, whereas summer food deprivation has disastrous effects, especially on survival and on use of energy reserves. Bioenergetics Red muscle Mitochondria Respirometry...

... regeneration and hair growth occur. Energetics, Thermoregulation Molting physiology Respirometry National Oceanic and Atmospheric Administration http://dx.doi.org/10.13039/100000192 NA19NMF4390083 Whether marine mammals have higher baseline metabolic rates than their terrestrial...

... respirometry to measure AS at, above (+2.5°C) and below (–2.5°C) the self-selected, preferred temperature ( T pref ) of individual zebrafish ( Danio rerio ). AS was greatest 2.5°C above T pref , which was driven by an increase in maximal metabolic rate. This mismatch between T pref and the optimal temperature...

... of 600 s for each cycle provided data with high R 2 values, and allowed us to make replicate measurements (four for each oxygen level). Fig. 2. Images of experimental setup and Pteronarcys californica gills. (A) Pteronarcys californica in respirometry chambers for measurements of mass...

... studying the physiological and behavioural performance of wild animal populations. Black spot disease Ecophysiology Fast-start escape response Infection intensity Respirometry Whole-organism performance Natural Sciences and Engineering Research Council of Canada http://dx.doi.org...

... α<0.05. Analysis of the respirometry data was performed in R v.4.1.1 software and R studio ( https://www.rstudio.com/products/team/ ) using either the fishMO2 package ( Claireaux and Chabot, 2016 ) or LabChart v.8.0 (ADInstruments, Colorado Springs, CO, USA). P AAS-50 was estimated...

...David J. Sandstrom; Bruce W. Offord ABSTRACT Coulometric respirometry is a highly sensitive method for measuring O 2 consumption in small organisms but it is not in widespread use among physiologists. Here, we describe a coulometric microrespirometer based on a digital environmental sensor inside...

... hypothesized therefore that partitioning of CO 2 would shift to the air phase in severe aquatic hypoxia, eliminating the risk of branchial O 2 loss. By adapting a respirometer designed to measure aquatic Ṁ O 2 / Ṁ CO 2 , we were able to run intermittent closed respirometry on both water and air phase for both...

... the impacts of anthropogenic disturbance to marine mammals. We combined estimates of energetic costs derived from breath-by-breath respirometry with measurements of overall dynamic body acceleration (ODBA) from biologging tags to validate ODBA as a proxy for COL in trained common bottlenose dolphins...

... 2. Estimated parameters from selected models for each respirometry measure The MMR was significantly higher for the mobile louse infection groups (mean 391.8±7.3 mg O 2  kg −1  h −1 ) compared with both the control group (estimate=−73.1, t 67 =−5.3, P <0.0001; mean 315.9±7.7 mg O 2...

... level (20.95, 15, 12, 9, 6 and 20.95% O 2 ). Tukey's and Sidak's multiple comparisons tests were performed on each dependent variable to determine significance. Respirometry and ventilatory data were qualitatively similar whether mass-corrected or not mass-corrected, and so data are presented normalized...

... data from hypoxia and warming together. The high f H of confined seabream indicates that respirometry techniques may bias estimates of metabolic traits in some fishes, and that biologging on free-swimming fish will provide more reliable insight into cardiac and behavioural responses to environmental...

.... The α - method has several advantages over P crit determination and non-linear analyses, including: (1) less ambiguity and greater accuracy, (2) fewer constraints in respirometry methodology and analysis, and (3) greater predictive power and ecological and physiological insight. Across the species...

... individuals. Following respirometry to calibrate oxygen consumption rate ( Ṁ O 2 ) with DBA under controlled conditions, predictive models can be applied to DBA data collected from free-ranging individuals. However, laboratory calibrations are generally performed on a relatively narrow size range of animals...

... sampled at least 10 individuals per treatment for each respirometry trial, so after outlier removal and pooling of experiments, the final dataset contained 8 to 55 embryos and 9 to 68 larvae from each treatment ( Table 2 ). The target treatment levels of all six experiments are summarized in Table 1...

... Withers , P. C. ( 2001 ). Design, calibration and calculation for flow-through respirometry systems . Aust. J. Zool.   49 , 445 - 461 . 10.1071/ZO00057 Withers , P. C. and Cooper , C. E. ( 2011 ). Using a priori contrasts for multivariate repeated-measures ANOVA to analyze...