The Effect of Global Change on the Dissolved Primary Productivity in the East China Sea and Kuroshio Region in the Northwest Pacific

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Project title

Code/計畫編號

MOST106-2611-M019-024

Translated Name/計畫中文名

全球變遷對西北太平洋臺灣海域海洋生物地球化學與生態系統影響之長期觀測與研究（II）-子計畫：全球變遷因子對東海及西北太平洋黑潮海域溶解態基礎生產力變動之影響

Project Coordinator/計畫主持人

Tzong-Yueh Chen

Funding Organization/主管機關

National Science and Technology Council

Department/Unit

Institute of Marine Environment and Ecology

Website

https://www.grb.gov.tw/search/planDetail?id=12312875

Year

2017

Start date/計畫起

01-11-2017

Expected Completion/計畫迄

01-07-2018

Bugetid/研究經費

1274千元

ResearchField/研究領域

海洋科學

本研究首次在西北太平洋沿岸進行溶解態初級生產力研究，發現在 2017年夏季顆粒態初級生產力 (particulate primary production; PPP) 為82.02 mgC m-3 d-1; 溶解態初級生產力 (dissolved primary production; DPP) 為13.07 mgC m-3 d-1; 胞外釋放百分比 (percentage extracellular release; PER) 為13.7%，與全球海洋的調查值相符。本研究第二部份利用2017年6月29日-7月11日海研一號第1168航次對東海進行有機碳及異營性細菌生產力全面性共 32個站位的調查。本次調查中，東海深度平均顆粒態有機碳 (Particulate Organic Carbon; POC) 濃度為4.11 4.61 M (範圍介於0.73 – 20.69 M); 深度平均溶解態有機碳 (Dissolved Organic Carbon; DOC) 濃度為86.84 14.29 M (範圍介於58.89 – 110.41 M); 深度平均異營性細菌生產力 (Heterotrophic Bacterial Production; HBP) 為8.41 3.34 mgC m-3 d-1 (範圍介於4.11 – 14.64 mgC m-3 d-1)。由空間的分佈來看，東海不管在顆粒態有機碳、溶解態有機碳或是異營性細菌生產力皆呈現相似的趨勢：近岸高，越往外洋越低，顯示大河沖淡水可能主宰了夏季東海有機碳與異營性細菌生產力的空間分佈。The report first revealed the dissolved primary production data in the northwestern Pacific Ocean, showing the particulate primary production (PPP) of 82.02 mgC m-3 d-1, the dissolved primary production (DPP) of 13.07 mgC m-3 d1, and the percentage extracellular release (PER) of 13.7% were comparable to the values in the world’s ocean. The survey of the East China Sea in the summer of 2017 (OR1, CR1168; Jun 29 to Jul 11, 2017) showed the depth-averaged particulate organic carbon (POC) concentration had a mean of 4.11 4.61 M (ranged 0.73 – 20.69 M); the depthaveraged dissolved organic carbon (DOC) concentration had a mean of 86.84 14.29 M (ranged 58.89 – 110.41 M); and the depth-averaged heterotrophic bacterial production (HBP) had a mean of 8.41 3.34 mgC m-3 d-1 (ranged 4.11 – 14.64 mgC m-3 d-1). The spatial distribution of hydrological, chemical, and biological parameters indicated the system was strongly affected by the Yangtze River.

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The Effect of Global Change on the Dissolved Primary Productivity in the East China Sea and Kuroshio Region in the Northwest Pacific

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