Vol. 24 No. 4 (2025): Mapana Journal of Sciences
Research Articles

Impact of NaCl on the morphology and biochemical aspects of Asian tiger mosquito, Aedes albopictus Skuse (Diptera: Culicidae).: Impact of NaCl on Asian tiger mosquito, Aedes albopictus.

  • Neethu Karan Puthenkandathil,
  • Ajitha V. S.
Neethu Karan Puthenkandathil
Department of Zoology, University College, Thiruvananthapuram, 695034, Kerala, India
Ajitha V. S.
Department of Zoology, University College, Thiruvananthapuram, 695034, Kerala, India

Published 2025-12-01

Copyright (c) 2025

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

Abstract

The main objective of this study is to analyse NaCl-induced morphological and biochemical changes in Aedes albopictus. Ae. albopictus larvae were treated with different concentrations of NaCl to establish morphological as well as biochemical responses. Larval mortality was recorded after 24-hour treatment to determine the LC50 value by using Probit Analysis. The NaCl solution caused a notable mortality after 24h experimental period. The LC50 value of NaCl in Ae. albopictus was found to be 1.7%. Morphological studies of eggs and fourth instar larvae of Ae. albopictus displayed severe morphological alterations in the treated samples.  In the fourth instar larvae of Ae. albopictus, the total protein, total free amino acid, and major antioxidant enzymes such as GST and GPx were found to be increased, and the activities of SOD, CAT, and AChE were substantially reduced as compared with those of the control group. NaCl exerts its negative impact on the growth and development of Ae. albopictus and leads to mortality due to metabolic as well as biochemical imbalances.

 

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