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Respiratory energy losses in the protozoan predator Didinium nasutum Müller (Ciliophora)


Laybourn-Parry, J, Respiratory energy losses in the protozoan predator Didinium nasutum Muller (Ciliophora), Oecologia, 27, (4) pp. 305-309. ISSN 0029-8549 (1977) [Refereed Article]

DOI: doi:10.1007/BF00345563


Respiration in Didinium nasutum, an active protozoan predator, was investigated in relation to cell weight at 10, 15, and 20° C by means of cartesian diver microrespirometry. Oxygen uptake increased progressively over the 10-20° C temperature range; a table of Q10 related to weight is presented. Regression coefficients of log weight versus log oxygen uptake (b) were 0.96 at 10° C, 0.98 at 15° C and 1.00 at 20° C. D. nasutum was shown to expend very much higher levels of respiratory energy than a mainly sedentary carnivorous ciliate of comparable weight. © 1977 Springer-Verlag.

Item Details

Item Type:Refereed Article
Research Division:Biological Sciences
Research Group:Ecology
Research Field:Marine and estuarine ecology (incl. marine ichthyology)
Objective Division:Expanding Knowledge
Objective Group:Expanding knowledge
Objective Field:Expanding knowledge in philosophy and religious studies
UTAS Author:Laybourn-Parry, J (Professor Johanna Laybourn-Parry)
ID Code:49395
Year Published:1977
Web of Science® Times Cited:14
Deposited By:Research Division
Deposited On:2007-12-08
Last Modified:2011-08-30

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