Nitrogen Budgets and Standing Crops of the Benthic Organism at Tidal Flats in and near Osaka Bay

• YAMOCHI Susumu

  大阪市立大学大学院工学研究科都市系専攻

Bibliographic Information

Other Title

• 大阪湾およびその周辺海域の干潟における窒素収支と動植物現存量

Abstract

Field investigations were conducted at two semi-natural and four artificial tidal flats in and near Osaka Bay to examine nitrogen budgets and standing crops of the benthic organism in high water temperature seasons of 2000 to 2006. The net exchange of nitrogen markedly changed from a source to a sink within 2 or 3 years of construction due to the massive reproduction of benthic organisms at the young artificial tidal flat. In contrast, nitrogen was trapped at a rate of ca.100 mgN/m²/day at the matured artificial tidal flat where dissolved inorganic nitrogen was temporally incorporated into the biomass and was exported in the form of dissolved organic nitrogen. The semi-natural tidal flat yielded a large uantity of bivalves and its nitrogen budget was well balanced compared to the artificial ones.

Journal

• PROCEEDINGS OF COASTAL ENGINEERING, JSCE

  PROCEEDINGS OF COASTAL ENGINEERING, JSCE 54 1111-1115, 2007

  Japan Society of Civil Engineers

Keywords

• General Chemical Engineering

Details

• CRID: 1390282679526157952
• NII Article ID: 130003807946
• DOI: 10.2208/proce1989.54.1111
• ISSN: 18848222
• ISSN: 09167897
• Data Source:
  • JaLC
  • Crossref
  • CiNii Articles
  • KAKEN
• Abstract License Flag: Disallowed