Toxicity of eight metals to Malaysian freshwater midge larvae Chironomus javanus (Diptera, Chironomidae)

Mohammad Shuhaimi-Othman, Nadzifah Yakub, Nur Shahirul Umirah, Ahmad Abas Kutty

Research output: Contribution to journalArticle

14 Citations (Scopus)

Abstract

Fourth instars larvae of freshwater midge Chironomus javanus (Diptera, Chironomidae) were exposed for a 4-day period in laboratory conditions to a range of copper (Cu), cadmium (Cd), zinc (Zn), lead (Pb), nickel (Ni), iron (Fe), aluminium (Al) and manganese (Mn) concentrations. Mortality was assessed and median lethal concentrations (LC50) were calculated. LC50 increased with the decrease in mean exposure times, for all metals. LC50s for 96 hours for Cu, Cd, Zn, Pb, Ni, Fe, Al and Mn were 0.17, 0.06, 5.57, 0.72, 5.32, 0.62, 1.43 and 5.27 mg/L, respectively. Metals bioconcentration in C. javanus increases with exposure to increasing concentrations and Cd was the most toxic to C. javanus, followed by Cu, Fe, Pb, Al, Mn, Zn and Ni (Cd > Cu > Fe > Pb > Al > Mn > Zn > Ni). Comparison of LC50 values for metals for this species with those for other freshwater midges reveals that C. javanus is equally or more sensitive to metals than most other tested dipteran.

Original languageEnglish
Pages (from-to)879-886
Number of pages8
JournalToxicology and Industrial Health
Volume27
Issue number10
DOIs
Publication statusPublished - Nov 2011

Fingerprint

Chironomidae
Manganese
Nickel
Fresh Water
Aluminum
Cadmium
Diptera
Larva
Toxicity
Zinc
Metals
Poisons
Copper
Iron
Mortality

Keywords

  • Acute
  • bioconcentration
  • concentration factor
  • mortality
  • soft water

ASJC Scopus subject areas

  • Public Health, Environmental and Occupational Health
  • Toxicology
  • Health, Toxicology and Mutagenesis

Cite this

Toxicity of eight metals to Malaysian freshwater midge larvae Chironomus javanus (Diptera, Chironomidae). / Shuhaimi-Othman, Mohammad; Yakub, Nadzifah; Umirah, Nur Shahirul; Abas Kutty, Ahmad.

In: Toxicology and Industrial Health, Vol. 27, No. 10, 11.2011, p. 879-886.

Research output: Contribution to journalArticle

Shuhaimi-Othman, Mohammad ; Yakub, Nadzifah ; Umirah, Nur Shahirul ; Abas Kutty, Ahmad. / Toxicity of eight metals to Malaysian freshwater midge larvae Chironomus javanus (Diptera, Chironomidae). In: Toxicology and Industrial Health. 2011 ; Vol. 27, No. 10. pp. 879-886.
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