Updates of long-term monitoring parameters for detection of future biogeochemical changes in Tokyo Bay

2014 Fiscal Year Final Research Report

• Project/Area Number: 24510009
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Research Field: Environmental dynamic analysis
• Research Institution: Tokyo University of Marine Science and Technology
• Principal Investigator: KANDA Jota 東京海洋大学, 海洋科学技術研究科, 教授 (60202032)
• Project Period (FY): 2012-04-01 – 2015-03-31
• Keywords: 東京湾 / 富栄養化 / 長期モニタリング / 生物生産

Outline of Final Research Achievements

For more than 20 years, standard hydrographic observations have been conducted monthly in Tokyo bay by Tokyo University of Marine Science and Technology. Since a drastic change in biogeochemical setting is anticipated because of the continuing decrease of nutrient load into the bay, we have tested updates of our monthly monitoring with introduction of several new parameters. The tested parameters include alkaline phosphatase activity, carbonate parameters, primary production and nitrogen uptake, and denitrification (anammox) activity. The incorporation of these parameters are demonstrated to be very useful in detecting the nutrient-limitation events in the bay.

Free Research Field

海洋生物地球化学