Response of diatoms to environmental changes in the Porphyra cultivation system in Haizhou Bay using GBT model and GAM
文献类型： 外文期刊
作者： Chen, Shuo 1 ; Han, Haibin 2 ; Yu, Jinchen 3 ; Sun, Tao 3 ; Zhou, Jin 3 ;
作者机构： 1.Shanghai Ocean Univ, Coll Fisheries & Life Sci, Shanghai 201306, Peoples R China
2.Zhejiang Univ, Ocean Coll, Hangzhou 316021, Zhejiang, Peoples R China
3.Chinese Acad Fishery Sci, East China Sea Fishery Res Inst, Shanghai 200090, Peoples R China
关键词： Phytoplankton community structure; Diatoms; GBT model; GAM; Haizhou Bay; Porphyra cultivation
期刊名称：MARINE POLLUTION BULLETIN （ 影响因子：4.9； 五年影响因子：5.6 ）
ISSN： 0025-326X
年卷期： 2025 年 215 卷
页码：
收录情况： SCI
摘要： Haizhou Bay hosts extensive Porphyra cultivation zones, constituting a significant component of the regional aquaculture industry. To investigate the spatiotemporal variations of phytoplankton, particularly diatoms, and their response to Porphyra cultivation activities, monthly surveys of the phytoplankton community structure and environmental variables were conducted in Haizhou Bay throughout 2023. The findings revealed pronounced seasonal succession and variability in phytoplankton species richness and abundance within the Haizhou Bay, with Porphyra cultivation exerting a discernible impact on diatom aggregation. Through the application of Gradient Boosting Trees (GBT) model and Generalized Additive Model (GAM) analyses, both methodologies underscored temperature (T), dissolved oxygen (DO), chemical oxygen demand (COD), and nutrient concentrations (SiO3 2-, NH4+, NO2-) as key environmental variables influencing diatom abundance in Haizhou Bay. It is advisable to prioritize the GBT model in subsequent research endeavors involving analogous datasets to achieve more dependable and precise outcomes. This investigation offers a seminal perspective on the ephemeral variations in phytoplankton community structure within Haizhou Bay, thereby establishing a vital groundwork for prospective long-term monitoring, predictive analyses of diatom bloom phenomena.
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