In situ release of coral mucus by Acropora and its influence on the heterotrophic bacteria

被引:40
作者
Nakajima, Ryota [1 ]
Yoshida, Teruaki [2 ]
Azman, Bin Abdul Rahim [2 ]
Zaleha, Kassim [3 ]
Othman, Bin Haji Ross [2 ]
Toda, Tatsuki [1 ]
机构
[1] Soka Univ, Dept Environm Engn Symbiosis, Fac Engn, Tokyo 1928577, Japan
[2] Univ Kebangsaan Malaysia, Marine Ecosyst Res Ctr, Fac Sci & Technol, Bangi 43600, Selangor, Malaysia
[3] Univ Malaysia Terengganu, Inst Trop Aquaculture, Kuala Terengganu 21030, Terengganu, Malaysia
基金
日本学术振兴会;
关键词
Degradation; DOC; POC; Nutrients; Acropora nobilis; Acropora formosa; NUTRIENTS; GROWTH; CARBON;
D O I
10.1007/s10452-008-9210-y
中图分类号
Q14 [生态学(生物生态学)];
学科分类号
071012 ; 0713 ;
摘要
In situ mucus release by Acropora nobilis and degradation of mucus from A. nobilis and Acropora formosa, by heterotrophic bacteria were investigated at Bidong and Tioman Island, Malaysia. Mucus release rate for A. nobilis was on average 38.7 +/- A 35.2 mg C m(-2) h(-1), of which ca. 70% consisted of dissolved organic carbon (DOC) and 30% particulate organic carbon (POC). In the mucus degradation experiment, seawater-mucus mixtures were incubated and compared with control runs for 24 h. Bacterial abundance in the seawater-mucus mixture increased significantly and coincided with a decline in DOC concentration. In controls, bacteria and DOC did not significantly change. The coral mucus had a high content of inorganic phosphate. It is suggested that the coral mucus rich in DOC and phosphate can induce the high bacterial growth.
引用
收藏
页码:815 / 823
页数:9
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