秋冬季东海陆架区浮游纤毛虫的生态分布特点

张翠霞; 张武昌; 赵楠; 肖天

秋冬季东海陆架区浮游纤毛虫的生态分布特点

1.
中国科学院海洋研究所海洋生态和环境科学重点实验室, 山东青岛 266071;中国科学院研究生院, 北京 100049
2.
中国科学院海洋研究所海洋生态和环境科学重点实验室, 山东青岛 266071

基金项目: 国家自然科学基金(40876085);国家重点基础研究规划项目(2011CB40980;2006CB400604);中国科学院知识创新方向项目(KZCXZ-YW-213)。

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出版历程
- 收稿日期: 2009-11-01

Distribution of planktonic ciliates in autumn and winter in the shelf areas of the East China Sea

1.
Key Laboratory of Marine Ecology and Environmental Sciences, Institute of Oceanology, Chinese Academy of Sciences, Qingdao, 266071, China;Graduate University of Chinese Academy of Sciences, Beijing, 100049, China
2.
Key Laboratory of Marine Ecology and Environmental Sciences, Institute of Oceanology, Chinese Academy of Sciences, Qingdao, 266071, China

摘要

摘要: 于2006年11月19日至12月23日(秋季)和2007年2月22日至3月11日(冬季)在东海陆架区(25°-33°N,120°-127°30'E)的6个断面(E1-E6)调查分析了浮游生活的寡毛目纤毛虫的生态分布特点。结果表明:秋季纤毛虫丰度为0~1 795个/dm³,生物量(C)为0~2.36 μg/dm³;冬季纤毛虫丰度为0~22 695个/dm³,生物量(C)为0~10.87 μg/dm³。秋季在外陆架区和中陆架区纤毛虫丰度与生物量高于内陆架区,冬季中陆架区纤毛虫丰度和生物量高于外陆架区和内陆架区。纤毛虫水柱丰度和水柱生物量高值秋季时出现在靠近外陆架北部的E2断面和南部E5断面,冬季出现在北部断面陆架中心位置。秋季和冬季纤毛虫主要分布在水体中上层。丰度上,两个季节都是无壳纤毛虫占优势;生物量上,秋季砂壳纤毛虫对生物量的贡献大于无壳纤毛虫。ESD(Equivalent Spherical Diameter)为10~20 μm的小型纤毛虫分别占秋季和冬季纤毛虫丰度的63%和82%。与已有的资料对比发现,东海陆架区浮游纤毛虫的生态分布没有发生明显变化。
- 纤毛虫 /
- 浮游生物 /
- 丰度 /
- 生物量 /
- 生态分布 /
- 东海陆架
Abstract: Abundance, biomass and size structure of planktonic oligotrich ciliate were investigated in the shelf areas of East China Sea (25°~33°N, 120°~127°30'E) at six transects (E1-E6) during two cruises in autumn (11.19-12.23) 2006 and winter (2.22-3.11) 2007. Ciliate abundance and biomass ranged from 0 to 1795 ind./L and from 0 to 2.36 μg C/L, respectively, in autumn. Ciliate abundance and biomass were in the range of 0 to 22 695 ind./L and 0 to 10.87 μg C/L, respectively, in winter. In autumn, ciliate abundance and biomass in outer and middle shelf was greater than inner shelf water. However, in winter the middle shelf had more ciliates than outer and inner shelf. High water column integrated ciliate abundance distributed in the northern transect E2 and southern transect E5 near the outer shelf in autumn and in center area of northern transects in winter. Vertically, ciliates mainly occurred in the upper and middle layers in autumn and winter. Aloricate ciliates were dominant in the abundance in autumn and winter, but contribution of tintinnid to total biomass was higher than aloricate ciliate in autumn. Small ciliates (ESD 10~20 μm) accounted for 63% and 82% in abundance in autumn and winter, respectively. Through comparison with previous ciliate reports in East China Sea, ecological distribution of planktonic ciliates was found no distinct variation.
- ciliate /
- plankton /
- abundance /
- biomass /
- ecological distribution /
- shelf areas of the East China Sea

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参考文献(41)

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