您好，欢迎访问中国水产科学研究院 机构知识库！
中国水产科学研究院机构知识库

全部

  • 全部
  • 标题
  • 学者
  • 机构
  • 关键词

Changes in size-dependent Chlorophyll a concentration and group-specific picophytoplankton abundance in short-term nutrient-addition experiments in the Equatorial Eastern Indian Ocean

文献类型： 外文期刊

作者： Sun, Ping 1 ; Sun, Kai-Ming 3 ; Zhou, Yuping 2 ; Liu, Lu 4 ; Yuan, Chao 5 ; Xu, Zongjun 1 ; Li, Yan 1 ; Zhang, Xuelei 1 ; Wang, Zongling 1 ;

作者机构： 1.Minist Nat Resources, Inst Oceanog 1, Qingdao, Peoples R China

2.Ocean Univ China, Coll Environm Sci & Engn, Qingdao, Peoples R China

3.Qilu Univ Technol, Inst Oceanog Instrumentat, Shandong Acad Sci, Qingdao, Peoples R China

4.Yellow Sea Fisheries Res Inst, Chinese Acad Fishery Sci, Key Lab Sustainable Dev Polar Fisheries, Minist Agr & Rural Affairs, Qingdao, Peoples R China

5.Minist Nat Resources, North China Sea Marine Forecasting & Hazard Mitiga, Qingdao, Peoples R China

关键词： phytoplankton; chlorophyll a; size-dependent responses; incubation; nutrient; short-term disturbance; Indian ocean

期刊名称：FRONTIERS IN MARINE SCIENCE （ 影响因子：3.7； 五年影响因子：4.7 ）

ISSN：

年卷期： 2024 年 11 卷

页码：

收录情况： SCI

摘要： To clarify the changes in phytoplankton community and influencing factors in short-term nutrient-addition experiments in the Equatorial Eastern Indian Ocean, we conducted three experiments (one in situ-like experiment, one on-deck experiment with deep seawater, and one on-deck experiment with surface seawater). Our findings indicate that when nutrients were added, there was a more significant increase in the chlorophyll a (chl a) concentrations of microphytoplankton (>20 mu m) compared to those of nanophytoplankton (2-20 mu m) and picophytoplankton (<2 mu m). The chl a concentrations for phytoplankton <20 mu m only exhibited significant increases in the on-board incubation of surface seawater collected at 1300 hr when grazing stress have likely been weak. In picophytoplankton, occasional increases in the abundances of Synechococcus were found, while the abundances of Prochlorococcus and eukaryotic picophytoplankton (Peuk) did not increase significantly. It results likely from the preference of grazing effect by herbivores and bottle effects. Additionally, the Prochlorococcus from 75 m was more adapted to weak light, thus its abundance sharply decreased when incubated under high light. We suggest that the nutrient effects have greater influence on microphytoplankton, but other factors, such as grazing and light, might contribute more to <20 mu m phytoplankton. Furthermore, bottle effects should be considered when conducting incubation experiments.

  • 相关文献
作者其他论文 更多>>
置顶
购物车
反馈

© 京ICP备09089781号-29 主办单位：中国水产科学研究院

学术资源： 中国农业科学院 农业专业知识服务系统 农科联盟资源共建共享平台 中国农业科技文献与信息服务平台 中国农业期刊集成服务平台