The Research for Dynamics of Oxygen in the Eutrophicated Shallow Sea Area

• YAMOCHI Susumu

  大阪市立大学大学院工学研究科都市系専攻

• SHIMIZU Hiroyuki

  株式会社クボタ

• SHIGEMATSU Takaaki

  大阪市立大学大学院工学研究科都市系専攻

• KOIKE Toshiya

  大阪市立大学大学運営本部研究支援課

Bibliographic Information

Other Title

• 富栄養浅海域の酸素動態に関する研究
• On the Artificial Tidal Flat of Hannan Second District in Osaka Bay
• 大阪湾阪南2区干潟創造実験場について

Abstract

The present paper dealt with the distribution and dynamics of oxygen at the artificial tidal flat of Hannan Second District, Osaka Bay.<BR>Oxygen-deficient waters were found on September 2005 and July 2006 at the bottom of shallow area of the artificial tidal flat where ground levels were from D. L.-2.3 to D. L.-1.9m. Photosynthesis of phytoplankton and seaweed played an important role on the dynamics of oxygen at the artificial tidal flat. Release of oxygen by phytoplankton changed depending on photon flux density, while dominant seaweed, Ulva sp. showed active photosynthesis in spite of low photon flux density. Oxygen consumption by respiration of Ulva sp. promoted hypoxia at night at the ground level of ca. D. L.-1. Om of the artificial tidal flat.

Journal

• PROCEEDINGS OF COASTAL ENGINEERING, JSCE

  PROCEEDINGS OF COASTAL ENGINEERING, JSCE 54 1261-1265, 2007

  Japan Society of Civil Engineers

Keywords

• General Chemical Engineering

Details

• CRID: 1390001204551741952
• NII Article ID: 130003807979
• DOI: 10.2208/proce1989.54.1261
• ISSN: 18848222
• ISSN: 09167897
• Data Source:
  • JaLC
  • Crossref
  • CiNii Articles
  • KAKEN
• Abstract License Flag: Disallowed