其他题名Analysis on the outbreak period and cause of Acanthaster planci in Xisha Islands in recent 15 years
李元超; 吴钟解; 梁计林; 陈石泉; 赵建民
发表期刊科学通报
ISSN0023-074X
2019
卷号64期号:33页码:3478-3484
关键词长棘海星西沙群岛暴发周期Acanthaster PlanciXisha IslandsOutbreakCycle
研究领域Environmental Sciences & Ecology
产权排序(1) 海南省海洋与渔业科学院
; (2) 中国科学院烟台海岸带研究所牟平海岸带环境综合试验站
作者部门海岸带生物资源高效利用研究与发展中心
英文摘要Outbreaks of the crown-of-thorns starfish Acanthaster planci have received increasing attention due to their negative impacts on coral reefs. However, outbreaks of A. planci in Chinese seas are still poorly understood. Coral reefs in the Xisha Islands (Paracel Islands), South China Sea, have been monitored during 2005 and 2019, including hard coral coverage, larval recruitment rates, density of coral reef fish and the populations of A. planci. This study aims to analyse the regular pattern regarding outbreaks of A. planci in the main islands of Xisha Islands, the causes of outbreaks of the crown-of-thorns starfish Acanthaster planci, and the solutions for controlling the outbreaks of the crown-of-thorns starfish Acanthaster planci. Monitoring coral reef ecosystems on the main islands of Xisha Islands from 2005 to 2019 showed that the cycle of Acanthaster planci outbreaks in Xisha Islands is about 15 years. These 15 years can be divided into two phases, in which the period of A. planci outbreak is about 5 years, and the recovery period of coral reefs is about 10 years. When A. planci outbreak from 2006 to 2010, the coral reef cover rate decreased from more than 60% to less than 5%. During the recovery period from 2011 to 2019, the coverage of coral reefs gradually increased to around 15%, at the same time the coral recruitment and coral reef fish increased. Further analysis showed that the occurrence of A. planci in Xisha Islands is mainly related to typhoon weather, reduction of coral reef fish, global warming and human activities. The passage of the typhoon brought a large number of nutrients, which led to the increase of plankton, leading to the survival rate of larvae of A. planci. Global warming and a decline in coral reef fish could lead to a greater percentage of the eggs of A. planci hatching and surviving. Based on 15-years monitoring data, it is highly possible that Xisha Islands are entering the next outbreak cycle of A. planci, and therefore measures should be taken to prevent the coral reef ecosystem from being destroyed again. Outbreaks of the crown-of-thorns starfish A. planci should be controlled in several ways. Direct control methods including physical removal of individual starfish and cutting individuals into multiple pieces were most often used methods to kill starfish. The most effective methods to control A. planci require injecting individual starfish with lethal chemicals, including sodium bisulfate, powdered citric acid, vinegar and thiosulfate-citrate-bile-sucrose agar (TCBS). Releasing the predator of A. planci of their different life cycle was also an effective way to control A. planci. The Giant Triton Shells (Charonia tritonis), the Napoleon Maori Wrasse (Cheilinus undulatus), Starry Puffer (Arathron stellatus) and Titan Trigger Fish (Ballistoides viridescens) were the main predator of the crown-of-thorns starfish A. planci. Moreover, regular monitoring of the starfish A. planci should be conducted in the Xisha Islands for early warning of outbreaks.
中文摘要2005~2019年对西沙群岛主要岛礁的珊瑚礁生态系统进行监测,结果表明西沙群岛的长棘海星暴发周期大约为15年.这15年又可分为两部分,其中长棘海星破坏期为5年左右,珊瑚恢复期为10年左右. 2006~2010年是长棘海星的破坏期,珊瑚覆盖率从60%多降低到不足5%. 2011~2019年是珊瑚的恢复期,珊瑚覆盖率逐步增多到15%左右,同时珊瑚补充量和珊瑚礁鱼类都有所增多.进一步分析表明,西沙群岛海域长棘海星的暴发主要与台风天气、珊瑚礁鱼类减少、全球升温、人类活动等因素有关.台风过境带来大量的营养盐,致使浮游生物增多,从而导致长棘海星的幼虫成活率提高.全球升温和珊瑚礁鱼类的减少会使长棘海星的精卵细胞更大比例地孵化和存活.通过对15年的监控数据的分析,我们认为西沙群岛海域正进入下一个长棘海星暴发周期,为了避免珊瑚礁生态系统再一次遭受灭顶之灾,现在应采取措施积极应对.
收录类别EI; CSCD
语种中文
关键词[WOS]长棘海星; 西沙群岛; 暴发; 周期; Acanthaster Planci; Xisha Islands; Outbreak; Cycle
研究领域[WOS]Environmental Sciences & Ecology
CSCD记录号CSCD:6640091
引用统计
文献类型期刊论文
条目标识符http://ir.yic.ac.cnhttp://ir.yic.ac.cn/handle/133337/25122
专题海岸带生物学与生物资源利用重点实验室_海岸带生物资源高效利用研究与发展中心
海岸带生物学与生物资源利用重点实验室_海岸带生物学与生物资源保护实验室
作者单位1.海南省海洋与渔业科学院;
2.中国科学院烟台海岸带研究所牟平海岸带环境综合试验站
推荐引用方式
GB/T 7714李元超,吴钟解,梁计林,等. 近15年西沙群岛长棘海星暴发周期及暴发原因分析[J]. 科学通报,2019,64(33):3478-3484.
APA李元超,吴钟解,梁计林,陈石泉,&赵建民.(2019).近15年西沙群岛长棘海星暴发周期及暴发原因分析.科学通报,64(33),3478-3484.
MLA李元超,et al."近15年西沙群岛长棘海星暴发周期及暴发原因分析".科学通报 64.33(2019):3478-3484.
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