The Study for the Water Quality Factor about Ayu Anadrome in Kandagawa River.

• KAZAMA Mari

  Water Quality Protection Division of Tokyo Met. Gov.

• OGURA Norio

  Tokyo University of Agriculture & Technology

Bibliographic Information

Other Title

• 神田川におけるアユ遡上の水質要因に関する研究
• 神田川におけるアユ溯上の水質要因に関する研究
• シンデンガワ ニ オケル アユ ソジョウ ノ スイシツ ヨウイン ニ カンスル ケンキュウ

Abstract

The aim of the investigation is to show how the Ayu (Plecoglossus altivelis), a fish living in clean streams, can return to an urban river that believed to be polluted in the past. It was found that the ammonia nitrogen concentration had decreased remarkably, by monitoring of the water quality at the river. Due to the qualitative improvement of the sewage treatment water that is the river's main discharge source, the ammonia nitrogen concentration was decreased. Ammonia is an important substance for the survival of the creature; and a safe level, which makes the Ayu's survival possible, was estimated.

Journal

• Journal of Japan Society on Water Environment

  Journal of Japan Society on Water Environment 24 (11), 745-749, 2001

  Japan Society on Water Environment

Keywords

• ammonia
• Ayu
• sewage treatment water
• Kandagawa River
• free ammonia

Details

• CRID: 1390282680059278848
• NII Article ID: 10008005986
• NII Book ID: AN10372439
• DOI: 10.2965/jswe.24.745
• COI: 1:CAS:528:DC%2BD38Xps1Gqsg%3D%3D
• ISSN: 18813690
• ISSN: 09168958
• NDL BIB ID: 5975830
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I5975830
• Web Site: https://www.jstage.jst.go.jp/article/jswe/24/11/24_11_745/_pdf
• Text Lang: ja
• Data Source:
  • JaLC
  • NDL
  • Crossref
  • CiNii Articles
• Abstract License Flag: Disallowed