Toxicity of metals to an aquatic worm, nais elinguis (Oligochaeta, Naididae)

M. Shuhaimi-Othman, Y. Nadzifah, N. S. Umirah, Ahmad Abas Kutty

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

Impact of metals to the environment is increasing problem worldwide. This study was conducted to determine the acute toxicity of 8 metals to worms Nais elinguis in laboratory. Adult freshwater worms N. elinguis (Oligochaeta, Naididae) were exposed for a four-day period in laboratory conditions to a range of copper (Cu), cadmium (Cd), zinc (Zn), lead (Pb), nickel (Ni), iron (Fe), aluminum (Al) and manganese (Mn) concentrations. Mortality was assessed and median lethal times (LT50) and concentrations (LC50) were calculated. LT50 and LC50 increased with the decrease in mean exposure concentrations and times, respectively for all metals. Ninety-six hour LC50 for Cu, Cd, Zn, Pb, Ni, Fe, Al and Mn were 7, 27, 912, 580, 645, 123, 3874 and 364 jig L1, respectively. Cu was the most toxic to N. elinguis followed by Cd, Fe, Mn, Pb, Ni, Zn and Al (Cu>Cd>Fe>Mn>Pb>Ni>Zn>Al). Comparison of LC50 values for metals for this species with those for other freshwater worms reveals that N elinguis is equally or more sensitive to metals. This study indicates that N elinguis is a potential organism in toxicity testing and as a bioindicator of metals pollution.

Original languageEnglish
Pages (from-to)122-132
Number of pages11
JournalResearch Journal of Environmental Toxicology
Volume6
Issue number4
DOIs
Publication statusPublished - 2012

Fingerprint

Oligochaeta
Toxicity
Metals
Manganese
Nickel
Aluminum
Cadmium
Zinc
Fresh Water
Jigs
Poisons
Biomarkers
Copper
Pollution
Iron
Lead
Mortality
Testing

Keywords

  • Acute
  • Heavy metal effect
  • Mortality
  • Nais elinguis
  • Sensitivity
  • Toxicity test

ASJC Scopus subject areas

  • Health, Toxicology and Mutagenesis
  • Pollution
  • Toxicology

Cite this

Toxicity of metals to an aquatic worm, nais elinguis (Oligochaeta, Naididae). / Shuhaimi-Othman, M.; Nadzifah, Y.; Umirah, N. S.; Abas Kutty, Ahmad.

In: Research Journal of Environmental Toxicology, Vol. 6, No. 4, 2012, p. 122-132.

Research output: Contribution to journalArticle

Shuhaimi-Othman, M. ; Nadzifah, Y. ; Umirah, N. S. ; Abas Kutty, Ahmad. / Toxicity of metals to an aquatic worm, nais elinguis (Oligochaeta, Naididae). In: Research Journal of Environmental Toxicology. 2012 ; Vol. 6, No. 4. pp. 122-132.
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