Localized bleaching and quick recovery in Hong Kong's coral communities

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journal

2 Scopus Citations
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Author(s)

  • James Y. Xie
  • Yip Hung Yeung
  • Chun Kit Kwok
  • Keith Kei
  • Put Ang Jr
  • Chi Chiu Cheang
  • Wing-kuen Chow
  • Jian-Wen Qiu

Detail(s)

Original languageEnglish
Article number110950
Journal / PublicationMarine Pollution Bulletin
Volume153
Online published6 Feb 2020
Publication statusPublished - Apr 2020

Abstract

During the summer of 2017 we visited 33 sites with substantial coral cover across Hong Kong waters. At six sites where coral bleaching was observed, video-transect surveys were conducted, which revealed 18.7% to 56.1% bleached colonies and 5.9% to 57.6% bleached coral covered area per site. Mainly affected were three plate-like and three massive coral species. Water quality parameters were analyzed, which indicated that hyposalinity might have triggered the bleaching event. Tagging and follow-up field observation revealed a pattern of recovery depending on coral growth form, with high recovery rates (> 93%) at five sites dominated by massive and submassive corals, but moderate (70%) at a site dominated by plate-like corals. Our study shows that the corals of Hong Kong exhibit differential susceptibility to bleaching and ability to recover, therefore it is imperative to establish a long-term monitoring programme to detect the changes in community structure over time.

Research Area(s)

  • Coral community, Coral health, Global warming, Hyposalinity, South China Sea

Citation Format(s)

Localized bleaching and quick recovery in Hong Kong's coral communities. / Xie, James Y.; Yeung, Yip Hung; Kwok, Chun Kit; Kei, Keith; Ang Jr, Put; Chan, Leo Lai; Cheang, Chi Chiu; Chow, Wing-kuen; Qiu, Jian-Wen.

In: Marine Pollution Bulletin, Vol. 153, 110950, 04.2020.

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journal