2020 Fiscal Year Annual Research Report
Mitigating climate change through seaweed aquaculture
| Project/Area Number |
20H03076
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| Research Institution | Nagasaki University |
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Principal Investigator |
ニシハラ グレゴリーナオキ 長崎大学, 海洋未来イノベーション機構, 教授 (40508321)
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| Co-Investigator(Kenkyū-buntansha) |
遠藤 光 鹿児島大学, 農水産獣医学域水産学系, 助教 (00523630)
田中 厚子 琉球大学, 理学部, 助教 (40509999)
寺田 竜太 鹿児島大学, 農水産獣医学域水産学系, 教授 (70336329)
佐藤 陽一 国立研究開発法人理化学研究所, 仁科加速器科学研究センター, 客員研究員 (70361144)
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| Project Period (FY) |
2020-04-01 – 2023-03-31
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| Keywords | blue carbon / primary production / seaweed / macroalgae / photosynthesis / seaweed aquaculture / seaweed farms |
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| Outline of Annual Research Achievements |
Dissolved oxygen loggers and instruments to measure the daily photosynthetic photon flux density and wind velocity were deployed at 5 locations. One at the Undaria pinnatifida (wakame) farm in Hirota Bay, Iwate Prefecture. One at the Undaria pinnatifida farm in Matsushima Bay, Miyagi Prefecture. One at the Cladosiphon okamuranus (okinawa-mozuku) farm at Bise Point, Okinawa Prefecture. Instruments were also deployed at two sites in Arikawa Bay, Nagasaki Prefecture to provide information regarding natural seaweed ecosystems. Additionally, experiments to estimate photosynthetic activity of a Sargassum macrocarpum (nokogirimoku)found at the natural ecosystems were closely examined and showed the temperature response of photosynthesis in this seaweed.
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| Current Status of Research Progress |
Current Status of Research Progress
2: Research has progressed on the whole more than it was originally planned.
Reason
Regardless of the problems caused by the COVID-19 epidemic on the ability of the research team to conduct field work, we were able to deploy instruments to remotely monitor the ecosystems. Also we heavily relied on online platforms to conduct meetings, share information, and discuss results. Hence, our work is progressing very well.
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| Strategy for Future Research Activity |
We will continue to deploy the instruments to collect more data, so that we can improve our estimates of the potential of seaweed farms to capture carbon and function as a blue carbon ecosystem. Additionally, we are expecting to collect results regarding the nutrient capture rates of Undaria pinnatifia.
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