Toxicity of cypermethrin on the embryo and larvae of Gangetic mystus, Mystus cavasius

Md Haider Ali, Kizar Ahmed Sumon, Marin Sultana, Harunur Rashid*

*Corresponding author for this work

Research output: Contribution to journalArticleAcademicpeer-review

8 Citations (Scopus)

Abstract

The objective of the present study was to elucidate the effects of cypermethrin on the embryo and the larvae of Gangetic mystus, Mystus cavasius. Therefore, fertilized eggs (n = 100) and 1-day-old larvae (n = 100) were exposed to six different concentrations of cypermethrin (0, 2, 4, 8, 16 and 32 μg L−1) in each of the 18 plastic bowls. Each of the treatment and control was maintained in three replicates. The LC10 and LC50 values for Gangetic mystus embryos and larvae were calculated using probit analysis. Results showed the mortality of embryos significantly increased with increasing cypermethrin concentrations. The 24-h LC10 and LC50 (with 95% confidence interval) values of cypermethrin for embryo were 0.42 (0.14–0.81) and 5.60 (4.16–7.19) μg L−1, respectively. Hatching success decreased and mortality of larvae increased significantly with increasing cypermethrin concentrations. The 24-h LC10 and LC50 values (with 95% confidence limits) of cypermethrin for larvae were 1.72 (1.24–2.20) and 11.57 (10.09–13.42) μg L−1, respectively; the 48-h LC10 and LC50 for larvae were 1.34 (0.83–1.89) and 8.25 (6.87–9.91) μg L−1, respectively; the 72-h LC10 and LC50 for larvae were 1.13 (0.63–1.66) and 6.12 (4.91–7.47) μg L−1, respectively. Furthermore, results showed several malformations in embryos and larvae when exposed to the two highest concentrations of cypermethrin. The findings of the study suggest that 2 μg L−1 cypermethrin concentration in the aquatic environment may have deleterious effects on the development and the reproduction of Gangetic mystus.
Original languageEnglish
Pages (from-to)3193-3199
JournalEnvironmental Science and Pollution Research
Volume25
Issue number4
Early online date2017
DOIs
Publication statusPublished - Apr 2018

Keywords

  • Aquatic ecosystem
  • Early-stage toxicity
  • Gangetic mystus
  • Malformation
  • Pyrethroid insecticide

Fingerprint

Dive into the research topics of 'Toxicity of cypermethrin on the embryo and larvae of Gangetic mystus, Mystus cavasius'. Together they form a unique fingerprint.

Cite this