Fluctuation of associated microbial with building reef corals \(\textit{Acropora}\) sp. from Hang Rai, Ninh Thuan

Authors

  • Pham Thi Mien Institute of Oceanography, VAST, Vietnam
  • Nguyen Kim Hanh Institute of Oceanography, VAST, Vietnam
  • Phan Minh Thu Institute of Oceanography, VAST, Vietnam
  • Nguyen Minh Hieu Institute of Oceanography, VAST, Vietnam
  • Vo Hai Thi Institute of Oceanography, VAST, Vietnam
  • Nguyen Trinh Duc Hieu Institute of Oceanography, VAST, Vietnam
  • Hoang Trung Du Institute of Oceanography, VAST, Vietnam
  • Nguyen Huu Huan Institute of Oceanography, VAST, Vietnam

DOI:

https://doi.org/10.15625/1859-3097/17235

Keywords:

Symbiotic microalgae, bacteria, Acropora sp., environmental factors, Ninh Thuan.

Abstract

El Nino and the prolonged warm sea surface temperature had a significant impact on coral reefs and caused coral bleaching in some parts of the world. In this study, the density of symbiotic algae and bacteria associated with the three coral species, namely Acropora hyacinthus, Acropora muricata and Acropora robusta collected in Hang Rai, Ninh Thuan were evaluated in May, June, August 2016, and in June 2017. The difference in the number of zooxanthellae with each coral species was statistically significant and correlated with a number of environmental factors, suggesting that symbiotic algae could play a key role in coral health. The total number of associated microbial with the three coral species was significantly different, they tended to depend on sampling time rather than coral species specific. At the time of ENSO (2016), the difference in total of associated bacteria with all three coral species was statistically significant. While the total number of associated bacteria with all three species of coral collected in 2017 did not differ with the total of bacteria in ambient water. In conclusions, symbiotic algae tend to be species-specific, whereas bacteria fluctuated significantly over time of sampling. Studies on the molecular issues of microalgae, the presence, the role of some groups of bacteria involved in the N, C, P, S cycles as well and the influence of environmental parameters should also be studied for better understand the relationship of coral holobiont.

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Published

2022-06-21

How to Cite

Pham, T. M., Nguyen, K. H., Phan, M. T., Nguyen, M. H., Vo, H. T., Nguyen Trinh, D. H., Hoang, T. D., & Nguyen , H. H. (2022). Fluctuation of associated microbial with building reef corals \(\textit{Acropora}\) sp. from Hang Rai, Ninh Thuan. Vietnam Journal of Marine Science and Technology, 22(2). https://doi.org/10.15625/1859-3097/17235

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Articles