| 南海北部自由生活海洋线虫的群落结构和生物多样性 |
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| 引用本文： | 刘晓收,许嫚,张敬怀,刘丹,李肖.南海北部自由生活海洋线虫的群落结构和生物多样性[J].海洋学报(英文版),2015,34(6):77-85. |
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| 作者姓名： | 刘晓收 许嫚 张敬怀 刘丹 李肖 |
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| 作者单位： | 中国海洋大学海洋生物多样性与进化研究所, 青岛 266003;中国海洋大学海洋生命学院, 青岛 266003,中国海洋大学海洋生命学院, 青岛 266003,国家海洋局南海环境监测中心, 广州 510300,中国海洋大学海洋生命学院, 青岛 266003,中国海洋大学海洋生命学院, 青岛 266003 |
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| 基金项目： | The Fundamental Research Funds for Central Universities of the Ministry of Education of China from Ocean University of China under contract Nos 201362018 and 201462008; the National Natural Science Foundation of China under contract No. 41006081; the Scientific Research Award Foundation for Outstanding Middle-aged and Young Scientists of Shandong Province under contract No. BS2013HZ008. |
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| 摘 要： | A quantitative study on the community structure and biodiversity of free-living marine nematodes and their relationship with environmental factors in the northern South China Sea were carried out based...
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| 关 键 词： | 自由生活海洋线虫 群落结构 生物多样性 深海 南海北部 |
| 收稿时间： | 7/7/2014 12:00:00 AM |
| 修稿时间： | 2014/9/21 0:00:00 |
Community structure and biodiversity of free-living marine nematodes in the northern South China Sea |
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| LIU Xiaoshou,XU Man,ZHANG Jinghuai,LIU Dan and LI Xiao.Community structure and biodiversity of free-living marine nematodes in the northern South China Sea[J].Acta Oceanologica Sinica,2015,34(6):77-85. |
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| Authors: | LIU Xiaoshou XU Man ZHANG Jinghuai LIU Dan and LI Xiao |
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| Institution: | 1.Institute of Evolution & Marine Biodiversity, Ocean University of China, Qingdao 266003, China;College of Marine Life Sciences, Ocean University of China, Qingdao 266003, China2.College of Marine Life Sciences, Ocean University of China, Qingdao 266003, China3.South China Sea Environmental Monitoring Center, State Oceanic Administration, Guangzhou 510300, China |
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| Abstract: | A quantitative study on the community structure and biodiversity of free-living marine nematodes and their relationship with environmental factors in the northern South China Sea were carried out based on the samples collected at five stations in the deep sea (from 313 to 1 600 m) and one station in shallow waters (87 m) during the cruise in September, 2010. Results showed that the abundance of marine nematodes ranged from 224 to 1 996 ind./(10 cm2). A total of 69 free-living marine nematode genera, belonging to 26 families and three orders, were identified. The most dominant genera were Sabatieria, Linhystera, Aegialoalaimus and Daptonema according to SIMPER analysis. Results of CLUSTER analysis revealed four types of marine nematode community (or station groups) in the sampling area. In terms of trophic structure, non-selective deposit feeders (1B) and selective deposit feeders (1A) were the dominant trophic types with highest genera numbers and abundances, which implied that organic detritus was the main food source of marine nematodes in the northern South China Sea. The percentage of male nematode was low, ranging from 2.22% to 17.81%, while those of juvenile individuals ranged from 36.99% to 82.09%. For genera level diversity of marine nematodes, Shannon-Wiener diversity indices (H') ranged from 3.76 to 4.57 and had highly significant negative correlation with water depth. In general, diversity indices H' at the five stations in deep sea (over 200 m) were lower than that at the station in shallow waters (87 m). BIOENV analysis showed that the most important environmental factor controlling marine nematode communities was water depth. |
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| Keywords: | free-living marine nematodes community structure biodiversity deep sea northern South China Sea |
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