Evaluation of cadmium toxicity on the population growth of Brachionus plicatilis (O. F. Müller)

Chinnasamy Arulvasu; Kumar Padmini; Perumal Prabu; Nallamuthu Thangaraju; Devadoss Dinesh   and Subramani Sellamuthu

doi:10.17485/ijst/2010/v3i1.15

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Evaluation of cadmium toxicity on the population growth of Brachionus plicatilis (O. F. Müller)

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Indian Journal of Science and Technology

DOI: 10.17485/ijst/2010/v3i1.15

Year: 2010, Volume: 3, Issue: 1, Pages: 90-93

Original Article

Evaluation of cadmium toxicity on the population growth of Brachionus plicatilis (O. F. Müller)

Chinnasamy Arulvasu¹ , Kumar Padmini¹, Perumal Prabu¹ , Nallamuthu Thangaraju² , Devadoss Dinesh¹ and Subramani Sellamuthu^1*

¹ Dept. of Zoology,
² Centre for Advanced Studies in Botany, University of Madras, Chennai-600 025, India.
[email protected]

This work is licensed under a Creative Commons Attribution 4.0 International License.

Abstract

The effect of heavy metal (cadmium chloride) toxicity on the reproductive bionomics of the rotifer Brachionus plicatilis was assessed. Bioassay was performed to obtain sub-lethal concentration of cadmium chloride using different concentrations (0.2, 0.4, 0.8, 1.0 and 1.2 mg/l) and the LC₅₀ value of B. plicatilis was identified as 0.8 mg/l. Based on the LC₅₀ value, newly hatched neonates were individually culture with five varying concentrations (0.1, 0.3, 0.4, 0.6 and 0.7 mg/l) of cadmium chloride. The life history parameters, such as time (hour) the rotifer released neonates and life span, were evaluated. These results showed that the population growth of B. plicatilis decreased with increasing concentrations of cadmium chloride.
Keywords: Cadmium chloride, life history parameter, heavy metal toxicity, rotifers, B. plicatilis