title: The assessment of the spatial and seasonal variability of chromophoric dissolved organic matter in the Southern Yellow Sea and the East China Sea.
abstract: Samples of chromophoric dissolved organic matter (CDOM) from the Southern Yellow Sea (SYS) and the East China Sea (ECS) were evaluated by fluorescent Excitation Emission Matrix (EEM) combined with Parallel Factorial Analysis (PARAFAC). Three terrestrial humic-like components (C1, C2 and C3) and one autochthonous protein-like component (C4) were identified. As for seasonal variations, CDOM displayed the following order on the whole: summer>spring>autumn. The C1, C2 and C3 components were mainly dominated by terrestrial inputs and their spatial distributions and temporal variations also can be influenced by primary productivity of phytoplankton, microbial activities and photobleaching. C4 was produced by phytoplankton and microorganisms and consumed by marine bacteria, and besides its distribution was attributed to the influence of riverine inputs. Terrestrial inputs were the dominant sources of CDOM in the SYS and ECS.
authors.affiliation: Key Laboratory of Marine Chemistry Theory and Technology, Ministry of Education, Ocean University of China, Qingdao 266100, China. Electronic address: surongguo@ouc.edu.cn.
authors.forename: Rongguo
authors.initials: R
authors.lastname: Su
authors.affiliation: Key Laboratory of Marine Chemistry Theory and Technology, Ministry of Education, Ocean University of China, Qingdao 266100, China.
authors.forename: Ying
authors.initials: Y
authors.lastname: Bai
authors.affiliation: Key Laboratory of Marine Chemistry Theory and Technology, Ministry of Education, Ocean University of China, Qingdao 266100, China.
authors.forename: Chuansong
authors.initials: C
authors.lastname: Zhang
authors.affiliation: Key Laboratory of Marine Chemistry Theory and Technology, Ministry of Education, Ocean University of China, Qingdao 266100, China.
authors.forename: Xiaoyong
authors.initials: X
authors.lastname: Shi
mesh_terms: D002681:China; D004784:Environmental Monitoring / Q000379:methods*; D006812:Humic Substances; D009792:Oceans and Seas; D038761:Photobleaching; D010839:Phytoplankton; D012621:Seasons; D062211:Spatio-Temporal Analysis; D013050:Spectrometry, Fluorescence / Q000379:methods
chemical_list: D006812:Humic Substances
keywords: Chromophoric dissolved organic matter; East China Sea; Fluorescence excitation–emission matrix spectroscopy; Parallel factor analysis model; Southern Yellow Sea