Journal of Tropical Oceanography ›› 2022, Vol. 41 ›› Issue (5): 141-149.doi: 10.11978/2021140CSTR: 32234.14.2021140

• Marine Biology • Previous Articles     Next Articles

Effect of ocean warming on the physiology of azooxanthellate coral–Cladopsammia sp.*

ZHANG Zhe1,2,3,4(), YU Xiaolei1,2,3,4, LIANG Yuxian1,2,3, HE Qian1,2,3,4, HUANG Hui1,2,3,5,6, YUAN Xiangcheng1,2,3,5,6(), ZHOU Weihua1,2,3   

  1. 1. 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
    2. CAS-HKUST Sanya Joint Laboratory of Marine Science Research, Key Laboratory of Tropical Marine Biotechnology of Hainan Province, Sanya Institute of Oceanology, SCSIO, Sanya 572000, China
    3. Sanya National Marine Ecosystem Research Station, Tropical Marine Biological Research Station in Hainan, Chinese Academy of Sciences, Sanya 572000, China
    4. University of Chinese Academy of Sciences, Beijing 100049, China
    5. Innovation Academy of South China Sea Ecology and Environmental Engineering, Chinese Academy of Sciences, Guangzhou 510301, China
    6. Southern Marine Science and Engineering Guangdong Laboratory (Guangzhou), Guangzhou 511458, China
  • Received:2021-10-19 Revised:2021-12-21 Online:2022-09-10 Published:2021-12-22
  • Contact: YUAN Xiangcheng E-mail:13526886352@163.com;xcyuan@scsio.ac.cn
  • 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)

Abstract:

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.

Key words: ocean warming, azooxanthellate coral Cladopsammia sp., metabolism, calcification

CLC Number: 

  • P735.542