EFFECTS OF CADMIUM AND ZINC ON OXYGEN UPTAKE IN THE WHELKBULLIA DIGITALIS(DILLWYN)
- 1 January 1982
- journal article
- research article
- Published by Taylor & Francis in Transactions of the Royal Society of South Africa
- Vol. 44 (4) , 551-554
- https://doi.org/10.1080/00359198209519142
Abstract
Solutions of CdCl2 and ZnCl2 affected O2 intake of B. digitalis at 15.degree. C, the sensitivity to Cd being .apprx. 10-fold greater. Zn concentrations > 1 ppm resulted in a lowering of O2 consumption, uptake being reduced by .apprx. 40% at 2 ppm. Cd increased respiration at 0.1-0.7 ppm, there being an increase of 30% at 0.5 ppm; > 0.6 ppm Cd, O2 uptake decreased rapidly and was 20% below normal at 0.75 and down 38% at 1 ppm. Altering the temperature within 10-20.degree. C had little effect on the responses, while the length of the exposure period had a greater effect. Low concentrations of Zn did not alter the responses of Cd but at higher concentrations of Zn the effect was additive.This publication has 6 references indexed in Scilit:
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