Abstract
The standard rate of oxygen consumption of ammocoetes (larvae) ofGeotria australis with a mean weight of c. 0.5 g was 9.6, 31.4 and 59.4μl g−1 h−1 at 4.5, 15.5 and 25.0°C respectively, which gives an overall Q10 of 2.4. The regression coefficient for the logarithmic relationship between oxygen consumption and body weight at 15.5°C was 0.704. The ammocoetes ofG. australis have a much lower rate of oxygen consumption at 15.5 and 25.0°C than those of holarctic lampreys. This presumably reflects the lower oxygen delivery pressure to their tissues and helps account for their slow growth rate. At 15.5°C, ammocoetes ofG. australis emerged from the substrate at 21–25 mm Hg and, unlike those of the Northern HemisphereIchthyomyzon greeleyi, died at 14–17 mm Hg. Thus, despite having a thinner water/blood barrier in the gills and blood with a higher oxygen affinity and capacity than holarctic ammocoetes, the larvae ofG. australis cannot survive very low dissolved oxygen tensions. This is apparently related to an inability of larvalG. australis to meet the high oxygen requirements of the respiratory pump at these oxygen tensions. During metamorphosis, oxygen consumption at 15.5°C rose from approximately 27μl g−1 h−1 at the beginning of transformation to 33.2μl g−1 h−1 by Stage 3 and then rapidly to 66μl g−1 h−1 at Stage 6. It remained near this level in Stage 7 and the downstream migrant.
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References cited
Beamish, I.W.H. and Mookherjii, P.S. 1964. Respiration of fishes with special emphasis on standard oxygen consumption. Can. J. Zool. 42: 161–175.
Bird, D.J. and Potter, I.C. 1979. Metamorphosis in the paired species of lampreys,Lampetra fluvialilis (L.) andLampetru planeri (Bloch). I. A description of the timing and stages. J. Linn. Soc. London. Zool. 65: 127–143.
Bird, D.J., Lutz, P.L. and Potter, I.C. 1976. Oxygen dissociation curves of the blood of larval and adult lampreys (Lampetra fluviatilis). J. Exp. Biol. 65: 449–458.
Hardisty, M.W. and Potter, I.C. 1971a. The general biology of adult lampreys.In The Biology of Lampreys, Vol.1, pp. 127–206. Edited by M.W. Hardisty and I.C. Potter. Academic Press. London.
Hardisty, M.W. and Potter, I.C. 1971b. The behaviour. ecology and growth of larval lampreys.In The Biology of Lampreys, Vol. 1. pp. 85–125. Edited by M.W. Hardisty and I.C. Potter. Academic Press, London.
Hill, B.J. and Potter, I.C. 1970. Oxygen consumption in ammocoetes of the lampreyIchthyomyzon hubbsi Raney. J. Exp. Biol. 53: 47–57.
Hilliard, R.W., Bird, D.J. and Potter, I.C. 1983. Metamorphic changes in the intestine of three species of lampreys. J. Morphol. 176: 181–196.
Hubbs, C.I. and Potter, I.C. 1971. Distribution, phylogeny and taxonomy.In The Biology of Lampreys, Vol.1, pp. 1–65. Edited by M.W. Hardisty and I.C. Potter. Academic Press, London.
Hughes, G.M. 1981. Effects of low oxygen and pollution on the respiratory systems of fish.In Stress and Fish, pp. 121–146. Edited by A.D. Pickering. Academic Press, London.
Lewis, S.V. and Poller, I.C. 1977. Oxygen consumption during the melamorphosi.s of the parasitic lamprey,Lampetra fluviatilis (L.) and its non-parasitic derivative.Lampetra planeri (Bloch). J. Exp. Biol. 69: 187–198.
Lewis, S.V. and Potter, I.C. 1982. A light and electron microscope study of the gills of larval lampreys (Geotria australiswith particular reference to the water-blood pathway. J. Zool. 198: 157–176.
Macey, D.J. and Potter, I.C. 1978. Lethal temperatures of ammocoetes of the Southern Hemisphere lamprey.Geotria australis Grav. Env. Biol. Fish. 3: 241–243.
Macey, D.J. and Potter, I.C. 1981. Measurements of various blood cell parameters during the life cycle of the Southern Hemisphere lampreyGeotria australis Gray. Comp. Biochem. Physiol. 69A: 815–823.
Macey, D.J. and Poiter, I.C. 1982. The effect of temperature on the oxygen dissociation curves of whole blood of larval and adult lampreys (Geotria australis). J. Exp. Biol. 97: 253–261.
Mackereth, J.H. and Talling, J.F. 1978. Water analysis: some revised methods for limnologists. Freshwal. Biol. Assoc. U.K., Scient. Publ. 36.
Manwell, C. 1963. The blood proteins of cyclostomes. A study in phylogenetic and ontogenetic biochemistry.In The Biology of Myxine. pp. 372–455. Edited by A. Brodal and R. Fänge. Universitetsforlaget. Oslo.
Moore, J.W. and Mallatt, J.M. 1980. Feeding of larval lamprey. Can. J. Fish. Aquat. Sci. 37: 1658–1664.
Potter, I.C. 1980a. The Petromyzoniformes with particular reference to paired species. Can. J. Fish. Aquat. Sci. 37: 1595–1615.
Potter, I.C. 1980b. Ecology of larval and metamorphosing lampreys. Can. J. Fish. Aquat. Sci. 37: 1641–1657.
Potter, I.C. and Bailey, J.R. 1972. The life cycle of the Tennessee brook lamprey,Ichthyomyzon hubbsi Raney. Copeia 1972: 470–476.
Potter, I.C. and Hilliard, R.W. 1986. Growth and the average duration of larval life in the southern hemisphere lamprey,Geotria australis Gray. Experientia 42: 1170–1173.
Potter, I.C. and Rogers, M.J. 1972. Oxygen consumption in burrowed and unburrowed ammocoetes ofLampetra planeri (Bloch). Comp. Biochem. Physiol. 41A: 427–432.
Potter, I.C., Hill, B.J. and Gentleman, S. 1970. Survival and behaviour of ammoeoetes at low oxygen tensions. J. Exp. Biol. 53: 59–73.
Potter, I.C., Hilliard, R.W. and Bird, D.I. 1980. Metamorphosis in the Southern Hemisphere lamprey,Geotria australis. J. Zool. 190: 405–430.
Potter, I.C., Lord Percy, R., Barber, D.L. and Macey, D.J. 1982a. The morphology, development and physiology of blood cells.In The Biology of Lampreys, Vol.4A. pp. 233–292. Edited by M.W. Hardisty and I.C. Potter. Academic Press, London.
Potter, I.C., Hilliard, R.W. and Bird, D.J. 1982b. Stages in Metamorphosis.In The Biology of Lampreys, Vol.4B. pp. 137–164. Edited by M.W. Hardisty and I.C. Potter. Academic Press, London.
Potter, I.C., Hilliard, R.W., Bradley, J.S. and McKay, R.J. 1986. The influence of environmental variables on the density of larval lampreys in different seasons. Oecologia 70: 433–440.
Rovainen, C.M. and Schieber, M.H. 1975. Ventilation of larval lampreys. J. Comp. Physiol. 104: 185–203.
Schmidt-Niclsen, K. 1983. Animal Physiology. Cambridge University Press. Cambridge.
Vladykov, V.D. and Kott, E. 1979. List of Northern Hemisphere lampreys (Petromyzonidae) and their distribution. Dep. Fish. Oceans Ottawa, Misc. Spec. Publ. 42.
Vouson, J.H. and Freeman, P.A. 1976. Morphology ol the gills of larval and parasitic adult sea lampreys.Petromyzon marinus J. Morphol. 149: 73–103.
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Galloway, R., Potter, I.C., Macey, D.J. et al. Oxygen consumption and responses to hypoxia of ammocoetes of the southern hemisphere lampreyGeotria australis . Fish Physiol Biochem 4, 63–72 (1987). https://doi.org/10.1007/BF02044315
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DOI: https://doi.org/10.1007/BF02044315