• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Continental Shelf Research: A Companion Journal to Deep-Sea Research and Progress in Oceanography >Seasonal variations in the effect of microzooplankton grazing on phytoplankton in the East China Sea
【24h】

Seasonal variations in the effect of microzooplankton grazing on phytoplankton in the East China Sea

机译：东海微浮游植物放牧对浮游植物影响的季节变化

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

The effect of microzooplankton grazing on phytoplankton in the East China Sea (ECS) was investigated in summer 2009 and winter 2009/2010 using the dilution technique. There were no significant differences in phytoplankton growth rates and microzooplankton grazing rates between coastal (influenced by the Changjiang River plume) and offshore (influenced by the Kuroshio) waters in either season. The mean rates of phytoplankton growth (0.77 +/- 0.53 d(-1)) and microzooplankton grazing (0.69 +/- 0.42 d(-1)) in summer (n=26) were significantly higher than those in winter (0.39 +/- 0.18 d(-1) and 0.21 +/- 0.08 d(-1) for mean rates of growth and grazing, respectively) (n=24). In both seasons, phytoplankton growth and microzooplankton grazing rates were significantly higher at the surface than at the depth of 5% surface irradiance. Aloricate ciliates were abundant and dominated microzooplankton in the ECS. There were no significant differences in microzooplankton abundance and biomass between seasons or depths. The grazing per microzooplankton was higher in summer than in winter. Phytoplankton growth rates were positively correlated with temperature in the surface waters in summer. Microzooplankton grazing balanced the primary production in summer, while the grazing was low in winter. In winter, the low picophytoplankton and temperature may have been responsible for the low microzooplankton grazing in the ECS. (C) 2015 Elsevier Ltd. All rights reserved.
机译：2009年夏季和2009/2010年冬季，采用稀释技术研究了微浮游植物对东海浮游植物的影响。在两个季节的沿海（受长江羽流影响）和近海（受黑潮影响）水域中，浮游植物的增长率和微浮游植物的放牧率均无显着差异。夏季（n = 26）的浮游植物平均增长率（0.77 +/- 0.53 d（-1））和微浮游动物放牧（0.69 +/- 0.42 d（-1））明显高于冬季（0.39 +分别为0.18 d（-1）和0.21 +/- 0.08 d（-1）分别表示平均生长率和放牧率（n = 24）。在这两个季节中，浮游植物的生长和微浮游植物的放牧率在地表均高于5％辐照深度处。藻类纤毛虫丰富且在ECS中占主导地位。不同季节或深度之间的微浮游动物的丰度和生物量没有显着差异。夏季每微浮游动物的放牧量要高于冬季。夏季浮游植物的生长速度与地表水温呈正相关。小型浮游动物的放牧在夏季平衡了初级生产，而冬季的放牧水平较低。在冬季，浮游植物和温度低可能是导致ECS放牧低微浮游动物的原因。 （C）2015 Elsevier Ltd.保留所有权利。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号