日本地球惑星科学連合2023年大会

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セッション記号 A (大気水圏科学) » A-CG 大気海洋・環境科学複合領域・一般

[A-CG31] Nutrient footprint of primary production in the coastal and marginal seas of East and Southeast Asia

2023年5月21日(日) 13:45 〜 15:15 106 (幕張メッセ国際会議場)

コンビーナ:張 勁(富山大学　学術研究部理学系)、森本 昭彦(愛媛大学)、Qian Liu(Ocean University of China)、Takahiro Endoh(RIAM Research Institute for Applied Mechanics)、座長:張 勁(富山大学　学術研究部理学系)

High-level biological resources are supported by much larger amounts of lower-level biomass, considering the food chain/web in the ocean. To clarify the sustainable productivity of the ocean, it is important to know how much biomass could be generated through primary production. Primary production is based on nutrient supply in the euphotic zone in the ocean. Quantitative evaluation of the transport of nutrients into the euphotic zone in a certain marginal sea, we say nutrient footprint here, provides useful information on the variation of upper-level biological resources. To know where the nutrients for the primary production come from is one of the most important issues to evaluate the biological production change caused by global warming in the marginal seas. In addition, oceanographic physical conditions, such as stratification, vertical mixing and horizonal transport, are quite important to control the behavior of nutrients. In this session, we will exchange the physical, chemical and biological information to understand primary production in the coastal and marginal seas with the key-word nutrient footprint.
A significant part of the nutrient load from land to coastal areas would come from river discharge. However, submarine groundwater discharge (SGD) is now noted as an important nutrient source in coastal regions, because the concentration of nutrients could be much higher than in river water, but with much less discharge. It is important to share knowledge and information procedures to detect SGD, and the related analysis in the international community, including the impact of SGD to the coastal environment, and how this issue is being addressed.
In this session, we expect to hear about various approaches concerning the behavior of nutrients, such as field studies, satellite remote sensing, numerical experiments with physical, chemical, and biological sensing along with interaction with the social sciences in East and Southeast Asia.

Introduction (13:45 〜 13:46)

13:46 〜 14:08

[ACG31-01] Is the subsurface Kuroshio just a nutrient conduit or a spreader?

★Invited Papers

*長井 健容1、Duran Gomez Silvana Gloria2、Saito Hiroaki3、Ogawa Hiroshi3、Kobari Toru4、吉江 直樹5、中村 啓彦4 (1.東京海洋大学 海洋環境科学部門、2.東京海洋大学大学院 海洋科学技術研究科、3.東京海洋大学　大気海洋研究所、4.鹿児島大学　水産学部、5.愛媛大学沿岸環境科学研究センター)

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