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[1]杨位迪,胡俊彤,林柏岸,等.西沙赵述岛海域珊瑚礁鱼类物种多样性[J].厦门大学学报(自然科学版),2018,57(06):819-826.[doi:10.6043/j.issn.0438-0479.201807002]
 YANG Weidi,HU Juntong,LIN Baian,et al.Species Diversity of Coral Reef Fishes in Zhaoshu Island Waters,Xisha Islands[J].Journal of Xiamen University(Natural Science),2018,57(06):819-826.[doi:10.6043/j.issn.0438-0479.201807002]
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《厦门大学学报(自然科学版)》[ISSN:0438-0479/CN:35-1070/N]

卷:
57卷
期数:
2018年06期
页码:
819-826
栏目:
海洋生态系统与全球变化
出版日期:
2018-11-28

文章信息/Info

Title:
Species Diversity of Coral Reef Fishes in Zhaoshu Island Waters,Xisha Islands
文章编号:
0438-0479(2018)06-0819-08
作者:
杨位迪1胡俊彤1林柏岸1黄 海2刘 敏1*
1.厦门大学海洋与地球学院,福建 厦门 361102; 2.海南热带海洋学院 水产与生态学院,海南省热带海洋渔业资源保护与利用重点实验室,海南 三亚 572022
Author(s):
YANG Weidi1HU Juntong 1LIN Baian1HUANG Hai2LIU Min1*
1.College of Ocean and Earth Sciences,Xiamen University,Xiamen 361102,China; 2.College of Fisheries and Life Science,Hainan Key Laboratory for Conservation and Utilization of Tropical Marine Fishery Resources,Hainan Tropical Ocean University,Sanya 57202
关键词:
珊瑚礁鱼类 物种多样性 鱼类密度 造礁珊瑚覆盖率 西沙群岛
Keywords:
coral reef fishes species diversity fish density stony coral coverage Xisha Islands
分类号:
P 735
DOI:
10.6043/j.issn.0438-0479.201807002
文献标志码:
A
摘要:
2017年4月采用水下录像方式对西沙赵述岛潟湖内外珊瑚礁鱼类种类组成、密度和种类相似度以及造礁珊瑚覆盖率进行评估.共鉴定珊瑚礁鱼类58种,隶属于1纲3目18科37属,其中鲈形目占绝对优势,共55种,占总种类数的94.83%.潟湖内外的珊瑚礁鱼类平均密度存在显著差异,且潟湖内(1.712 3±0.273 2 尾/m2)高于潟湖外(0.655 1±0.029 3 尾/m2).胸斑眶锯雀鲷(Stegastes fasciolatus)、三斑海猪鱼(Halichoeres trimaculatus)、宅泥鱼(Dascyllus aruanus)和栉齿刺尾鱼(Ctenochaetus striatus)为西沙赵述岛的主要鱼类,前3种主要分布在潟湖内,而栉齿刺尾鱼主要分布在潟湖外.潟湖内外珊瑚礁鱼类的种类相似性系数为0.29,属于中等不相似.潟湖内外的造礁珊瑚覆盖率分别为(7.98±9.91)%和(12.35±6.21)%,不存在显著差异.调查区内珊瑚礁鱼类以小型种类为主,珊瑚礁鱼类中食用价值高的石斑鱼科和鹦嘴鱼科的鱼类密度均不高,这可能与日渐退化的珊瑚礁生态功能和日益增加的人类活动相关.
Abstract:
Underwater video surveys were conducted in April 2017 to determine coral reef fish species composition,density,species similarity and stony coral coverage inside and outside the lagoon of Zhaoshu Island,Xisha Islands.Totally 58 coral reef fish species were identified from the videos of the six transects recorded,belonging to one class,three orders,18 families and 37 genera.Among the 58 species,the Perciforms is absolutely dominant with 55 species(94.83%).The fish densities were significant different between inside(1.712 3±0.273 2 ind/m2)and outside(0.655 1±0.029 3 ind/m2)the lagoon(p<0.05).The first four dominant species were Stegastes fasciolatus,Halichoeres trimaculatus,Dascyllus aruanus and Ctenochaetus striatus in Zhaoshu Island waters,of which the first three mainly occurred inside the lagoon and the last species outside the lagoon.The Jaccard’s coefficient of similarity of coral reef fishes inside to those outside the lagoon was 0.29,indicating medium dissimilarity of the two habitats.The coverage of stony corals inside the lagoon(7.98±9.91)% was not significantly different from that outside the lagoon(12.35±6.21)%.Dominant fish species in the surveyed areas were small in body size,while highly-valued commercially important reef fishes such as Epinephelidae and Scaridae were of low density.This may due to the reduction in coral reef ecological function and the increase of human activities in Xisha Islands.

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备注/Memo

备注/Memo:
收稿日期:2018-07-01 录用日期:2018-08-28
基金项目:海南省重大科研计划项目(ZDKJ2016013); 农业农村部渔业渔政管理局项目(171821301354051007); 国家海洋局项目(220203993022761133)
*通信作者:minliuxm@xmu.edu.cn
引文格式:杨位迪,胡俊彤,林柏岸,等.西沙赵述岛海域珊瑚礁鱼类物种多样性[J].厦门大学学报(自然科学版),2018,57(6):819-826.
Citation:YANG W D,HU J T,LIN B A,et al.Species diversity of coral reef fishes in Zhaoshu Island waters,Xisha Islands[J].J Xiamen Univ Nat Sci,2018,57(6):819-826.(in Chinese)
更新日期/Last Update: 1900-01-01