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An outbreak of sea cucumbers hinders coral recruitment
Zhang, YY; McCook, L; Jiang, L; Lian, JS; Liu, S; Huang, H;
Source PublicationCORAL REEFS
AbstractAn outbreak of a small sessile sea cucumber, Ocnus sanya, occurred on the degraded Luhuitou coral reef in Sanya Bay, Hainan, China. This study explored the pattern of distribution of O. sanya on the reef and the impacts of the high abundance of O. sanya on post-settlement mortality of Pocillopora damicornis recruits. The density of O. sanya ranged from about 500 to over 2000 individuals m(-2) with 10.95-23.69% cover on hard substrate. Terracotta tiles with O. sanya on the surface accumulated 19.7% more surface sediment than those without sea cucumbers. Post-settlement P. damicornis recruits had significantly higher mortality on terracotta tiles with O. sanya than those without O. sanya after 21 d. Overall, O. sanya appears to increase sediment stress and inhibit coral recruitment, exacerbating the degradation of Luhuitou Reef. This study raises the possibility that such novel outbreak species could contribute significant additional stress on coral reefs at larger scales.
Department[Zhang, Yu-Yang; McCook, Laurence; Jiang, Lei; Lian, Jian-Sheng; Liu, Sheng; Huang, Hui] Chinese Acad Sci, South China Sea Inst Oceanol, Key Lab Trop Marine Bioresources & Ecol, Guangdong Prov Key Lab Appl Marine Biol, 164 Xingang West Rd, Guangzhou 510301, Guangdong, Peoples R China; [McCook, Laurence] James Cook Univ, ARC Ctr Excellence Coral Reef Studies, Townsville, Qld, Australia; [Jiang, Lei] Univ Chinese Acad Sci, Chinese Acad Sci, Beijing 100049, Peoples R China; [Huang, Hui] Chinese Acad Sci, Trop Marine Biol Res Stn Hainan, Sanya 572000, Peoples R China
Subject AreaMarine & Freshwater Biology
WOS KeywordSea cucumber outbreak ; Ocnus sanya ; Pocillopora damicornis ; Coral recruitment ; Luhuitou Reef China ; Coral reef degradation
Funding ProjectLMB
Document Type期刊论文
Recommended Citation
GB/T 7714
Zhang, YY,McCook, L,Jiang, L,et al. An outbreak of sea cucumbers hinders coral recruitment[J]. CORAL REEFS,2018,37(2):321-326.
APA Zhang, YY.,McCook, L.,Jiang, L.,Lian, JS.,Liu, S.,...& outbreak of sea cucumbers hinders coral recruitment.CORAL REEFS,37(2),321-326.
MLA Zhang, YY,et al."An outbreak of sea cucumbers hinders coral recruitment".CORAL REEFS 37.2(2018):321-326.
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