The influence of temperature on oxygen consumption in the larvae of Toxorhynchites splendens (Wiedemann) (Diptera: Culicidae)

Dwarakanath, S.K.; Berlin, O.G.; Panadian, R.S.

Journal of Medical Entomology 11(6): 762


ISSN/ISBN: 0022-2585
PMID: 235651
DOI: 10.1093/jmedent/11.6.762
Accession: 000235570

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Larvae of Toxorhynchites splendens (Wied) were collected in the field and acclimated at 20, 25, 30 or 33 deg C for 72 h. The oxygen consumption of these larvae when they were then placed in water at the same temperature or other temperatures of this series was then measured in order to estimate the influence of acclimation on respiration. That of larvae tested at 20 deg C after acclimation at 20 deg C was 41% higher than when tested at 20 deg C on transfer from 33 deg C. On the other hand, that of larvae acclimated at 33 deg C and tested at 33 deg C was 54% lower than that of larvae acclimated at 20 deg and tested at 33 deg C. The oxygen uptake following acclimation increased with rise in the temperature of acclimation, as in other insects.