Relationship between burrowing activity of the polychaetous annelid, Neanthes japonica (Izuka) and nitrification-denitrification processes in the sediments

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書誌事項

公開日
1983-10
権利情報
  • https://www.elsevier.com/tdm/userlicense/1.0/
DOI
  • 10.1016/0022-0981(83)90108-9
公開者
Elsevier BV

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説明

Abstract The influence of the benthic organism, Neanthes japonica (Izuka) on nitrification-denitrification processes has been studied in experimental aquaria. The aquaria were filled with diluted sea water with or without nitrate, and contained or did not contain N. japonica. In the series supplied with diluted sea water without nitrate, extremely high concentrations of nitrite + nitrate nitrogen were found in the inner layer of the burrow wall, and denitrification activity in the surface layer (0–0.5 cm) containing N. japonica was three times that of control. In the series supplied with nitrate, there was no significant difference in the activity between surface layers with and without N. japonica. The influence of bioturbation of sediments by N. japonica on nitrification-denitrification processes and its mechanisms have been discussed.

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