Evaluation of bioremediation potential of three benthic annelids in organically polluted marine sediment

Mana Ito, Katsutoshi Ito, Kohei Ohta, Takeshi Hano, Toshimitsu Onduka, Kazuhiko Mochida, Kazunori Fujii

Research output: Contribution to journalArticlepeer-review

17 Citations (Scopus)


This study aimed to evaluate the possible remedial effects of three marine benthic annelids on organically polluted sediments from the waters of Hatsukaichi Marina, Hiroshima, Japan. Two polychaetes, Perinereis nuntia and Capitella cf. teleta, and an oligochaete, Thalassodrilides sp., were incubated in sediments for 50 days. Their effects on physicochemical properties such as organic matter (loss on ignition), redox potential (Eh), acid volatile sulfides (AVS), and degradation of polycyclic aromatic hydrocarbons (PAHs) were assessed. The polychaetes P. nuntia and C. cf. teleta significantly increased Eh level and decreased AVS level compared with the oligochaete Thalassodrilides sp. and control (without benthic organisms). Total PAH concentration significantly decreased from the initial level with all three groups; Thalassodrilides sp. had a marked ability to reduce PAHs in sediment. These results indicate that benthic organisms have species-specific remediation properties and ecological functions in organically polluted sediments.

Original languageEnglish
Pages (from-to)392-399
Number of pages8
Publication statusPublished - Nov 1 2016
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Environmental Engineering
  • General Chemistry
  • Environmental Chemistry
  • Pollution
  • Public Health, Environmental and Occupational Health
  • Health, Toxicology and Mutagenesis


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