Oxygen Uptake By Typhlonectes Compressicaudus Related To The Body Weight

1. 1. Oxygen consumption by Typhlonectes compressicaudus has been determined in aerial conditions and under obligatory submersion at 25°C. 2. 2. The O2 uptake by skin and lungs can be expressed as related to the body weight according to the equation: V ̇o2(ml/hr) = 0.120 W0.782. The correlation coefficient is 0.932. 3. 3. In animals submersed in O2 satured tapwater the relationship between O2 uptake and body weight can be determined by the equation: V ̇o2(ml/hr) = 0.118 W0.496. The correlation coefficient is 0.972. 4. 4. T. compressicaudus, is a typical aquatic Gymnophiona. In spite of a predominant aerial respiration, it can resist up to 40 min submersed in the aquaria, under normal conditions, and up to 120-150 min in the Schlieper's respirometer. © 1978.611141143Foxon, Blood and respiration (1964) Physiology of Amphibia, 1, pp. 151-209. , J.A Moore, Academic Press, New YorkFuhrmann, Le genre Typhlonectes (1912) Mém. Soc. neuchât. Sci. nat., 5, pp. 112-138Gonçalves, Sawaya, Consumo de Oxigênio por Typhlonectes compressicaudus (Amphibia Apoda)—fase aérea (1976) Ciênc. Cult., S. Paulo., 28 (Supplement), p. 353Hemmingsen, Energy metabolism as related to body size and respiratory surfaces and its evolution (1960) Rep. Steno. meml. Hosp., 9, pp. 1-110Hoar, Hickman, (1967) A Laboratory Companion for General and Comparative Physiology, pp. 286-288. , Prentice-Hall, Englewood CliffsHutchison, Whitford, Kohl, Relation of body size and surface area to gas exchange in Anurans (1968) Physiol. Zool., 41, pp. 65-85Mendes, Sobre a respiração (esofágica, traqueal e cutânea) do Siphonops annulatus (Amphibia Gymnophiona) (1941) Bolm. Fac. Filos. Ciênc. Univ. S. Paulo (Zool.), 5, pp. 283-304Mendes, Contribuição para a fisiologia dos sistemas respiratório e circulatório de Siphonops annulatus (Amphibia Gymnophiona) (1945) Bolm. Fac. Filos. Ciênc. Univ. S. Paulo (Zool.), 9, pp. 25-67Sawaya, Metabolismo respiratório de anfibio Gymnophiona Typhlonectes compressicauda (Dum. et Bibr.) (1947) Bolm. Fac. Filos. Ciênc. Univ. S. Paulo (Zool.), 12, pp. 51-56Schlieper, (1965) Praktikum der Zoophysiologie, p. 67. , Gustav Fischer, Verlag, StuttgartSzarski, The structure of respiratory organs in relation to body size in Amphibia (1964) Evolution, 18, pp. 118-126Ultsch, A theoretical and experimental investigation of the relationship between metabolic rate, body size and oxygen exchange capacity (1973) Resp. Physiol., 18, pp. 143-160Ultsch, Gas exchange and metabolism in the Sirenidae (Amphibia-Caudata)—I. Oxygen consumption of submerged sirenids as a function of body size and respiratory surface area (1974) Comp. Biochem. Physiol., 47 A, pp. 485-498Ultsch, Respiratory surface area as a factor controlling the standard rate of O2 consumption of aquatic salamanders (1976) Resp. Physiol., 26 (3), pp. 357-369Whitford, Hutchison, Body size and metabolic rate in salamanders (1967) Physiol Zool, 40, pp. 127-133Wood, Weber, Maloiy, Johansen, Oxygen uptake and blood respiratory properties of the caecilian Boulengerula taitanus (1976) Respiration Physiology, 24, pp. 355-363Zeuthen, Oxygen uptake as related to body size in organisms (1953) Q. Rev. Biol., 28 (1), pp. 1-1