Heavy precipitation-induced Yangtze River runoff greatly regulates heterotrophic prokaryotes production and induces P-limited growth in the northern East China Sea

To elucidate the impact of Yangtze River Diluted Water (YRDW) on Heterotrophic prokaryotes production (HPP) and growth-limiting resources, we conducted comprehensive microbial oceanographic measurements from 2020 to 2022, integrating satellite image analysis and optical property measurements of dissolved organic carbon (DOC) in the northern East China Sea (31.5-32.5°N, 124.5-127.1°E). Seawater samples were collected on board. Limiting resources assay were conducted on board. DOC, fluorescent dissolved organic matter, prokaryotes abundance (PA), heterotrophic prokaryotes production (HPP) and primary production (PP) of seawater were analyzed. Please refer to the attached dataset template for further details.为阐明长江冲淡水（Yangtze River Diluted Water, YRDW）对异养原核生物生产力（Heterotrophic prokaryotes production, HPP）及生长限制资源的影响，我们于2020—2022年在东海北部（31.5°N~32.5°N，124.5°E~127.1°E）开展了系统性微生物海洋学观测，整合卫星影像分析与溶解有机碳（dissolved organic carbon, DOC）的光学特性测量。 本研究通过科考船甲板采集海水样本，并同步开展限制性资源测定；随后对海水的溶解有机碳、荧光溶解有机质、原核生物丰度（prokaryotes abundance, PA）、异养原核生物生产力（HPP）及初级生产力（primary production, PP）进行分析。 详细信息请参阅附件中的数据集模板。