Archives of Environmental Contamination and Toxicology

, Volume 12, Issue 3, pp 271–275

Acute and chronic effects of carbaryl on survival, growth, and metamorphosis in the bullfrog (Rana tigrina)

  • M. Peter Marian
  • V. Arul
  • T. J. Pandian
Article

DOI: 10.1007/BF01059402

Cite this article as:
Marian, M.P., Arul, V. & Pandian, T.J. Arch. Environ. Contam. Toxicol. (1983) 12: 271. doi:10.1007/BF01059402

Abstract

The effects of carbaryl (1-naphthalenyl methylcarbamate), an extensively used insecticide in agricultural operations, have been studied on survival, growth, and metamorphosis of the bullfrog tadpoleRana tigrina. The 96 hr LC50 value for tadpoles (0.02 g) was 6.2 mg/L. The tadpoles were reared from hatching to metamorphosis in sublethal concentrations of carbaryl. Rates of feeding, defecation, and excretion increased with increasing concentration of carbaryl but the conversion rate decreased leading to the production of small froglets. The tadpoles exposed to the sublethal concentrations suffered no mortality until the appearance of the forelimb; however, during metamorphosis mortality was significant, even at 2 mg/L.

Copyright information

© Springer-Verlag 1993

Authors and Affiliations

  • M. Peter Marian
    • 1
  • V. Arul
    • 1
  • T. J. Pandian
    • 1
  1. 1.Unit of Environmental Physiology, School of Biological SciencesMadurai Kamaraj UniversityMaduraiIndia