| LI Haibo,ZHANG Wuchang,ZHAO Yuan,ZHAO Li,DONG Yi,WANG Chaofeng,LIANG Chen,XIAO Tian.Tintinnid diversity in the tropical West Pacific Ocean[J].Acta Oceanologica Sinica,2018,37(10):218-228 |
| 热带西太平洋砂壳纤毛虫的多样性 |
| Tintinnid diversity in the tropical West Pacific Ocean |
| 投稿时间：2017-06-30 |
| DOI：10.1007/s13131-018-1148-x |
| 中文关键词: tintinnid diversity redundant species tropical West Pacific Ocean |
| 英文关键词:tintinnid diversity redundant species tropical West Pacific Ocean |
| 基金项目:The National Natural Science Foundation of China under contract Nos 41706192, 41576164; the National Natural Science Foundation of China-Shandong Joint Fund for Marine Science Research Centers under contract No. U1606404. |
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| 中文摘要: |
| 为了探明热带西太平洋海区砂壳纤毛虫的多样性、垂直分布及纬向变化，我们于2012年11-12月在该海区四个断面采集了0-200 m的水样。共检出砂壳纤毛虫39属124种，多数种类喜好生活在表层和次表层。砂壳纤毛虫种丰富度、丰度以及多样性指数的高值主要出现在比叶绿素浓度最大值稍浅的位置，与温度和叶绿素浓度显著正相关，与盐度和采样深度显著负相关。多数优势种与环境因子间的相关性不显著。热带西太平洋海区砂壳纤毛虫多样性极高，各站种丰富度在25-52之间。在从表层至75 m处的多数采样点香农指数均大于3。该海区砂壳纤毛虫冗余种的比例很高，占砂壳纤毛虫总种类数的87.90%，贡献了砂壳纤毛虫60.38%的丰度，表明热带西太平洋海区砂壳纤毛虫群落对饵料组成和摄食压力改变的应对能力很强，稳定性很高。 |
| 英文摘要: |
| In order to investigate the tintinnid diversity, vertical distribution and latitudinal variation in the tropical West Pacific Ocean, water samples of different depths from surface to 200 m were collected along four transects. Totally 124 tintinnid species in 39 genera were detected. Most species preferred to live in the surface and subsurface waters. High tintinnid species richness, abundance and diversity index mainly occurred at depths slight shallower than the layer of deep chlorophyll maximum. Species richness, abundance and Shannon's diversity index were significant positive correlation with temperature and chlorophyll a in vivo fluorescence, but significant negative correlation with salinity and depth. The correlations between most dominant species and environmental factors were not significant. Tintinnid diversity was extremely high in this area, species richness ranged from 25 to 52 at each station, Shannon's diversity indexes were higher than 3 at most sampling positions from surface to 75 m. Proportions of redundant species were high, accounted for 87.90% of species pool and 60.38% of total abundance, indicating high capacity to response to changes in resource composition and predation pressures of tintinnid communities in the tropical West Pacific Ocean. |
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