海水酸化和升温对两种造礁石珊瑚生长和钙化的影响  

Effects of ocean acidification and warming on the growth and calcification of two reef-building corals

作　　者：周伟华[1,2,3] 李颖心 郭亚娟 霍嘉欣[1,2,3,4] 宋严 朱晴 袁翔城 刘胜[1,2,3] 黄晖 ZHOU Weihua;LI Yingxin;GUO Yajuan;HUO Jiaxin;SONG Yan;ZHU Qing;YUAN Xiangcheng;LIU Sheng;HUANG Hui(CAS Key Laboratory of Tropical Marine Bio-resources and Ecology,Guangdong Provincial Key Laboratory of Applied Marine Biology,South China Sea Institute of Oceanology,Chinese Academy of Sciences,Guangzhou 510301,China;CAS-HKUST Sanya Joint Laboratory of Marine Science Research,Key Laboratory of Tropical Marine Biotechnology of Hainan Province,Sanya 572000,China;Sanya National Marine Ecosystem Research Station,Tropical Marine Biological Research Station in Hainan,Chinese Academy of Sciences,Sanya 572000,China;University of Chinese Academy of Sciences,Beijing 100049,China;Testing Center of Marine Environment,South China Sea Institute of Oceanology,Chinese Academy of Sciences,Guangzhou 510301,China)

机构地区：[1]中国科学院热带海洋生物资源与生态重点实验室,广东省应用海洋生物学重点实验室,中国科学院南海海洋研究所,广东广州510301 [2]三亚海洋科学综合(联合)实验室,海南省热带海洋生物技术重点实验室,海南三亚572000 [3]海南三亚海洋生态系统国家野外科学观测研究站,中国科学院海南热带海洋生物实验站,海南三亚572000 [4]中国科学院大学,北京100049 [5]中国科学院南海海洋研究所海洋环境检测中心,广东广州510301

出　　处：《热带海洋学报》2024年第3期49-57,共9页Journal of Tropical Oceanography

基　　金：广东省基础与应用基础研究基金(2022A1515010656);国家自然科学基金(31370500);海南省重点研发计划项目(ZDYF2020200)。

摘　　要：以海南岛三亚鹿回头两种常见的造礁石珊瑚(鹿角杯形珊瑚Pocillopora damicornis和丛生盔形珊瑚Galaxea fascicularis)为研究对象,通过室内培养实验探究海水酸化和升温两种联合因子对造礁石珊瑚生长和钙化的影响。结果显示:两种珊瑚受海水酸化的影响显著,丛生盔形珊瑚在pH 8.1下的生长速率显著高于pH 7.7和7.4环境,鹿角杯形珊瑚在pH 7.4下的钙化速率显著低于pH 7.7和8.1环境。且鹿角杯形珊瑚的生长速率与钙化速率显示各温度和pH因子之间均出现拮抗现象,能有效缓解珊瑚白化;相同的拮抗现象也出现在丛生盔形珊瑚的钙化速率上,但在其生长速率则表现出协同作用,加速珊瑚白化。鹿角杯形珊瑚与丛生盔形珊瑚的生长速率和钙化速率对海水升温和酸化的响应存在种间特异性。To explore the effects of ocean warming and acidification on coral growth and calcification rate,two widespread coral species,Pocillopora damicornis and Galaxea fascicularis,in the Luhuitou area of the Sanya Bay,were selected for a 28-days controlled incubation experiment.With the interactive treatments of temperatures and pCO_(2),our results indicated that corals were significantly affected by seawater acidification.Moreover,acidification affected strongly the growth rate of G.fascicularis and the calcification rate of P.damicornis.The chlorophyll fluorescence index(Fv/Fm)of the symbiotic zooxanthellae in P.damicornis was significantly higher than G.fascicularis.Interestingly,the quantitative study showed that there was an antagonistic effect between temperature and pH at some levels,which could effectively alleviate coral bleaching.Thus,we concluded that the growth and calcification rate exhibited interspecific specificity in response to seawater warming and acidification.

关 键 词：鹿角杯形珊瑚 丛生盔形珊瑚 酸化 升温 生长 钙化 

分 类 号：Q958.8[生物学—动物学]