Document Type

Journal Article

Department/Unit

Department of Biology

Language

English

Abstract

We reported a coral bleaching event that occurred in August-September 2014 in Hong Kong waters based on video transect surveys conducted at eight sites. The bleaching affected eight species of corals with different growth forms. Bleaching at seven of the eight study sites was minor, affecting only 0.4-5.2% colonies and 0.8-10.0% coral-covered area. Sharp Island East, however, suffered from a moderate level of bleaching, with 13.1% colonies and 30.1% coral-covered area affected. Examination of the government's environmental monitoring data indicated abnormal water quality conditions preceding and during the bleaching event. Follow-up field surveys of tagged colonies showed that 76% of them had fully recovered, 12% partially recovered, and 12% suffered from mortality. These results indicate that the subtropical corals of Hong Kong are not immune to bleaching, and there is a need to study their responses under climate change scenarios.

Keywords

Coral bleaching, Global climate change, High temperature, Hypoxia, Platygyra, Porites

Publication Date

11-30-2017

Source Publication Title

Marine Pollution Bulletin

Volume

124

Issue

2

Start Page

653

End Page

659

Publisher

Elsevier

Peer Reviewed

1

Copyright

© 2017 Elsevier Ltd. All rights reserved.

Funder

The paper writing was partially supported by a research grant from Environmental and Conservation Fund, Hong Kong (project no. 2015-84).

DOI

10.1016/j.marpolbul.2017.03.061

ISSN (print)

0025326X

ISSN (electronic)

18793363

Available for download on Sunday, December 01, 2019

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