Journal of Tropical Oceanography >
Effect of ocean warming on the physiology of azooxanthellate coral–Cladopsammia sp.*
Copy editor: YIN Bo
Received date: 2021-10-19
Revised date: 2021-12-21
Online published: 2021-12-22
Supported by
Key Special Project for Introduced Talents Team of Southern Marine Science and Engineering Guangdong Laboratory (Guangzhou)(GML2019ZD0402)
Key Special Project for Introduced Talents Team of Southern Marine Science and Engineering Guangdong Laboratory (Guangzhou)(GML2019ZD0404)
To study the effects of ocean warming on the metabolism and calcification physiology of azooxanthellate coral - Cladopsammia sp., we set the seawater in controlling group at 26 ℃, and the temperature of experimental group was increased from 26 ℃ to 33 ℃. The results indicated that although the activity of calcification-related enzymes (Ca2+-ATPase and Mg2+-ATPase) of Cladopsammia sp. showed a negative response, the respiration rate, growth rate, total protein and crude lipid in tissues of this coral were not significantly altered under thermal stress (p > 0.05). The comparison between the data of previous studies and this study shows that Cladopsammia sp. exhibited higher temperature tolerance than most zooxanthellate corals, probably because it does not have Symbiodinium. At present, the research on the thermal stress of azooxanthellate corals is very limited. It is necessary to strengthen the research on the mechanism of tolerance of these corals, to help us predict more accurately the impact of future environmental changes on coral reef ecosystem in China.
ZHANG Zhe , YU Xiaolei , LIANG Yuxian , HE Qian , HUANG Hui , YUAN Xiangcheng , ZHOU Weihua . Effect of ocean warming on the physiology of azooxanthellate coral–Cladopsammia sp.*[J]. Journal of Tropical Oceanography, 2022 , 41(5) : 141 -149 . DOI: 10.11978/2021140
表1 不同时间的实验温度设置Tab. 1 Experimental temperature at different times |
时间 | 第1天(D0) | 第7天(D7) | 第13天(D13) | 第15天(D15) |
---|---|---|---|---|
对照组温度/℃ | 26±0.5 | 26±0.5 | 26±0.5 | 26±0.5 |
试验组温度/℃ | 26±0.3 | 29±0.3 | 32±0.3 | 33±0.3 |
表2 文献记录的海洋钙化物种在不同试验处理后的Ca2+-ATP酶活性和Mg2+-ATP酶活性Tab. 2 The activity of Ca2+-ATPase and Mg2+-ATPase of marine calcifying species recorded in literatures after different experimental treatments |
海洋钙化物种 | 是否虫黄藻共生 | 试验处理 | Ca2+-ATP酶活性/(μmol·mg-1·h-1) | Mg2+-ATP酶活性/(μmol·mg-1·h-1) | 参考文献 |
---|---|---|---|---|---|
Mussismilia harttii (珊瑚) | 是 | 铜富集试验培养12天(6.7μg·L-1) | 2.52 ± 0.45 | 3.85 ± 0.29 | de Barros Marangoni等(2017) |
Tubastrea aurea (珊瑚) | 否 | 自然条件 | 0.23 | 0.52 | Liao等(2021) |
Cladopsammia sp. (珊瑚) | 否 | 自然条件 | 0.88±0.16 | 0.92±0.16 | 本研究 |
Marginopora vertebralis (底栖有孔虫) | 否 | 自然条件 | 0.63 | 1.11 | Prazeres等(2015) |
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