... and CO 2 exchange are maintained even at peak metabolic rates ( Hicks and Wang, 2021 ). Additionally, arterial P O 2  remained high in most species at V̇ O 2 ,max , and arterial P CO 2  was either unchanged or lower than at rest. These patterns in blood gases indicate that gas exchange...

... of Biologists Ltd 2021 Highlighted Article: The depletion of oxygen during diving in crocodilians is associated with HCO 3 – binding to haemoglobin, which contrasts the classic vertebrate pattern, where HCO 3 – accumulates in the plasma. Blood gases pH Blood–oxygen affinity Haemoglobin...

... ventricle. Recent theoretical considerations imply that a R–L shunt would have minuscule effects on P CO 2 , but direct measurements of blood gases in both the right and left aortae or both the right and left atria in fed animals have not been conducted. For this reason, we measured blood parameters...

... between 5 and 15°C . Respir. Physiol.   61 , 237 - 254 . 10.1016/0034-5687(85)90129-X Boutilier , R. G. , Glass , M. L. and Heisler , N. ( 1987 ). Blood gases and extracellular/intracellular acid-base status as a function of temperature in the anuran amphibians Xenopus laevis...

.... In this study, ventilation, metabolic rate and arterial blood gases were measured from juvenile estuarine crocodiles under three conditions: (i) while resting at 30°C and 20°C; (ii) while breathing hypercapnic gases; and (iii) during immediate recovery from treadmill exercise. The relative contribution...

... for correspondence (e-mail: [email protected] ) 30 9 2007 © The Company of Biologists Limited 2007 2007 aerobic dive limit blood gases dive emperor penguin hypoxemia P O 2 Emperor penguins ( Aptenodytes forsteri ) are premier avian divers with routine dive durations of 5–12 min...

...T. K. Stockard; D. H. Levenson; L. Berg; J. R. Fransioli; E. A. Baranov; P. J. Ponganis SUMMARY Blood gases ( P O 2, P CO 2, pH), oxygen content, hematocrit and hemoglobin concentration were measured during rest-associated apneas of nine juvenile northern elephant seals. In conjunction with blood...

[email protected] 29 09 1997 © 1997 The Company of Biologists Ltd. 1997 diving swimming lactate blood gases aerobic dive limit white whale Delphinapterus leucas White whales Delphinapterus leucas are exceptional divers compared with other small odontocete whales...

... ( N =3–4). Table 2. Hematological measurements in swimming yellowfin tuna following anesthesia, at maximum velocity and post-exercise Table 3. Measurements of blood gases and pH in swimming yellowfin tuna following anesthesia, at maximum velocity and post-exercise Table 4...

... are discussed with reference to the role of circulating catecholamines in rapidly modifying blood O 2 and CO 2 transport in rainbow trout. 4 3 1993 © 1993 by Company of Biologists 1993 catecholamines blood gases acid–base status Na + /H + exchange hypercapnia trout Oncorhynchus...

... significant correlation (P< 0·001) with the slope pH unit −1 . 13 03 1989 © 1989 by Company of Biologists 1989 sea turtle temperature oxygen consumption lung ventilation pH blood gases blood ions lactate urea It is well established that temperature has profound...

.... ( 1972 ). Cardiovascular and respiratory responses of ducks to progressive hypocapnic hypoxia . J. exp. Biol . 56 , 657 – 666 . 10.1242/jeb.56.3.657 Kawashiro , T. & Scheid , P. ( 1975 ). Arterial blood gases in undisturbed resting birds measurements in chicken and duck...

... carbon dioxide stores acid–base status blood gases lactate Beginning largely with the work by Robin (1962) on the turtle Pseudemys scripta (now Chrysemys scripta ), investigators have found that in vivo plasma pH varies inversely with body temperature in ectotherms (see reviews...

...R. G. Boutilier; M. L. Glass; N. Heisler ABSTRACT Blood gases, and parameters of the extracellular and intracellular acid-base status, were measured in the anuran amphibians Bufo marinus and Xenopus laevis acclimated to temperatures of 10, 20 and 30°C for 12 days. Arterial rose with temperature so...

... internal at rest is close to the P 50 measured under similar conditions and the hyperbolic equilibrium curve permits further oxygen unloading when falls during swimming. 17 03 1986 © 1986 by Company of Biologists 1986 hagfish blood gases O 2 transport Hagfish are primitive...

... blood gases pH Most cardiorespiratory studies on diving in anuran amphibians have involved either submersion of restrained animals or closing off access to the surface for freely moving individuals. Periods of breath holding under these circumstances result in a well developed diving...

... into blood which may be acidified by as much as 1 pH unit as a result of physical activity. * Present address: School of Biological Sciences, University of California, Irvine, California 92717, U.S.A. 27 02 1985 © 1985 by Company of Biologists 1985 Blood gases acid-base...

.... * Present address: Department of Zoophysiology, University of Aarhus, Aarhus, Denmark. 17 10 1983 © 1985 by Company of Biologists 1985 Acid-base status alphastat blood gases reptilia respiration temperature turtles Turtles encounter a wide range of environmental...