Journal of Marine Life Science (한국해양생명과학회지)

The Korean Society of Marine Life Science (한국해양생명과학회)
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Post-disturbance Recovery Pattern in the Soft Corals-Macroalgae Mixed Habitat in Jeju Island, Korea

  • Kim, Junsu (Department of Biological Sciences, Sungkyunkwan University) ;
  • Hong, Seokwoo (Department of Biological Sciences, Sungkyunkwan University) ;
  • Yang, Kwon Mo (Department of Biological Sciences, Sungkyunkwan University) ;
  • Macias, Daniela (Department of Biological Sciences, Sungkyunkwan University) ;
  • Kim, Jeong Ha (Department of Biological Sciences, Sungkyunkwan University)
  • Received : 2021.11.29
  • Accepted : 2021.12.03
  • Published : 2021.12.15
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Abstract

Post-disturbance recovery pattern of subtidal soft corals-macroalgae mixed community and the role of water depth were investigated. The experiment was conducted in a subtidal rock wall of Munseom, Jeju Island, Korea for 2.5 years. Artificial disturbance was done at established treatment plots at depths of 10, 15 and 20 m and were then compared with undisturbed control plots. After disturbance, recovery of soft corals was very slow, whereas macroalgae quickly occupied the plots and reached a similar level as the control in 6 months, and this pattern was consistent at all water depths. This unbalanced speed of recovery caused higher macroalgae establishment than soft corals in treatment compared to control plots, indicating a possible phase shift in the community structure. This study provides an important implication for the necessity of monitoring the influence of disturbance at a larger scale, from a conservation perspective of soft corals in Jeju coast.

Keywords

Acknowledgement

This study was supported in part by Cultural Heritage Administration of Korea and Seogwipo Submarine Tour. Authors specially thank to the SCUBA diving team of SST for their assistance in the field. Much appreciation goes to two anonymous reviewers for their valuable comments.

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