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Diverse nature of the seasonally coastal eutrophication dominated by oceanic nutrients: An eco-system based analysis characterized by salmon migration and aquaculture

文献类型: 外文期刊

作者: Zhang, Jing 1 ; Tishchenko, Pavel Ya 2 ; Jiang, Zeng Jie 3 ; Semkin, Pavel Yu. 2 ; Tishchenko, Petr P. 2 ; Zheng, Wei 1 ; Lobanov, Vyacheslav B. 2 ; Sergeev, Alexander F. 2 ; Jiang, Shan 1 ;

作者机构: 1.East China Normal Univ ECNU, State Key Lab Estuarine & Coastal Res SKLEC, 500 Dongchuan Rd, Shanghai 200241, Peoples R China

2.Russian Acad Sci, Pacific Oceanol Inst POI, Far East Branch, 43 Baltiyskaya St, Vladivostok 690041, Russia

3.Chinese Acad Fishery Sci, Yellow Sea Fisheries Res Inst YSFRI, 106 Nanjing Rd, Qingdao 266071, Peoples R China

4.Shanghai Jiao Tong Univ SJTU, Sch Oceanog, 1954 Huashan Rd, Shanghai 200030, Peoples R China

关键词: Eutrophication; Sanggou Bay; Academy Bay; Aquaculture of seaweeds; Salmon migration

期刊名称:MARINE POLLUTION BULLETIN ( 影响因子:5.8; 五年影响因子:6.5 )

ISSN: 0025-326X

年卷期: 2023 年 193 卷

页码:

收录情况: SCI

摘要: Previously, studies of coastal eutrophication have usually focused on the nutrients input from adjacent land sectors, such as rivers, submarine-ground discharges, and atmospheric depositions. Here we report two examples of well-managed seasonal eutrophication phenomena in coastal marine environments, where nutrients come predominantly from offshore: one by humans and the other by nature (higher trophic animals). In the Sanggou Bay of North China, the total amount of incoming nutrients from the open Yellow Sea is taken up by seaweeds. Seaweed, in turn, supports bivalves culture activities and absorbs nutrients emitted by finfish. In the Academy Bay of Russian Far East, a relatively high plankton primary production sustains throughout the salmon-returning season when nutrients are released from the massive carcasses of dead fish after return from the ocean to their natal streams to spawn and die. This high plankton productivity, in turn, fuels higher trophic ecosystem constituents, including whale populations of global importance. In the future, dominance of nutrients from marine sources needs to be seriously considered in studies of coastal eutrophication.

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