State Key Laboratory of Tropical Oceanography, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou, 510301, China.
Innovation Academy of South China Sea Ecology and Environmental Engineering, Chinese Academy of Sciences, Guangzhou, 510301, China.
Ecotoxicology. 2020 Aug;29(6):751-761. doi: 10.1007/s10646-020-02188-2. Epub 2020 Mar 18.
Daya Bay is facing the influence of human activities and nature changes, which result in phytoplankton adjusting to the changing environment. The data about environmental changes and phytoplankton were obtained from four seasonal cruises in 2013 in the bay. It is helpful to explore seasonal succession of phytoplankton driven by the determining environmental factors in this bay. Temperature is a significant indicator of season change. The limiting factor of phytoplankton growth totally changed from P (PO-P) limiting during the southwest monsoon to Si (SiO-Si) limiting during northeast monsoon. The order of diatoms and dinoflagellates was the dominant phytoplankton groups in Daya Bay. The dominant species included chain-forming diatoms (Skeletonema, Pseudo-nitzschia, Thalassionema, Chaetoceros and Rhizosolenia) were found all the year round and filamentous cyanobacteria (Trichodesmium) in spring and autumn. Partial least square regression (PLS) found that salinity, temperature and nutrients were important driving force for phytoplankton seasonal succession.
大亚湾面临着人类活动和自然变化的影响，这导致浮游植物适应不断变化的环境。这些关于环境变化和浮游植物的数据是 2013 年在该海湾进行的四次季节性巡航中获得的。这有助于探索该海湾浮游植物的季节性演替，由决定环境因素驱动。温度是季节变化的重要指标。浮游植物生长的限制因素完全从西南季风期间的 P（PO-P）限制转变为东北季风期间的 Si（SiO-Si）限制。硅藻和甲藻是大亚湾浮游植物的主要类群。全年都存在链状硅藻（Skeletonema、Pseudo-nitzschia、Thalassionema、Chaetoceros 和 Rhizosolenia）和春季和秋季的丝状蓝藻（Trichodesmium）等优势种。偏最小二乘回归（PLS）发现盐度、温度和营养物质是浮游植物季节性演替的重要驱动力。
