|Title:||East China Sea increasingly gains limiting nutrient P from South China Sea||Authors:||Huang, Ting Hsuan
Chen, Chen Tung Arthur
Wu, Chau Ron
Wang, You Lin
Wang, Shu Lun
Lou, Jiann Yuh
Tsuang, Ben Jei
Chen, Hsien Wen
Tseng, Ruo Shan
|Issue Date:||1-Dec-2019||Publisher:||NATURE PUBLISHING GROUP||Journal Volume:||9||Journal Issue:||1||Source:||Scientific Reports||Abstract:||
© 2019, The Author(s). The Taiwan Strait (TS) directly connects two of the richest fishing grounds in the world - the East China Sea (ECS) and the South China Sea (SCS). Carbon and nutrient supplies are essential for primary production and the Yangtze River is an important source for the ECS. However the ECS is severely P-limited. The TS transports an order of magnitude more carbon and a factor of two more phosphate (P) to the ECS than the Yangtze River does. To evaluate the temporal variability of these supplies, the total alkalinity (TA), dissolved inorganic carbon (DIC), nitrate plus nitrite (N), P, and silicate (Si) fluxes through the TS were estimated using empirical equations for these parameters and the current velocity, which was estimated using the Hybrid Coordinate Ocean Model (HYCOM). These empirical equations were derived from in situ salinity and temperature and measured chemical concentrations that were collected during 57 cruises (1995–2014) with a total of 2096 bottle samples. The 24-month moving averages of water, carbon, and nutrient fluxes significantly increase with time, so does the satellite chlorophyll a concentration. More importantly, the increased supply of the badly needed P from the TS is more than that from the Yangtze River.
|Appears in Collections:||海洋研究所|
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