东山湾海带养殖区海洋浮游细菌的群落结构变化

Changes of the Community Structure of Marine Planktonic Bacteria in the Kelp Culture Area of Dongshan Bay

对福建省东山湾一处海带养殖区海水中浮游细菌群落进行考察,以了解在海带生长不同阶段海洋浮游细菌的群落结构变化特征。结果表明,在未挂养海带前,海水中的优势浮游细菌为亚硫酸杆菌属细菌,在海带生长的凹凸期、薄嫩期、厚成期、成熟期,海水中优势浮游细菌分别为假单胞菌属、普里斯特氏菌属、假交替单胞菌属、假交替单胞菌属细菌。该研究深化了对海洋细菌与海带相互作用的认识,为海带生长过程中的科学管理提供了理论依据。

The planktonic bacterial community in seawater of a kelp culture area in Dongshan Bay,Fujian Province was investigated to understand the changes of bacteria structure characteristics at different life stages of kelp.It was found that the dominant planktonic bacteria on a genus level were strains of Sulfitobacter before kelp was hooked and raised.Strains in Pseudomonas,Priestia and Pseudoalteromonas were dominant at different life stages of Saccharina japonica.This study deepened the understanding of the interaction between marine bacteria and kelp,and provided a theoretical basis for the scientific management of kelp growth process.