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

Vertical Fine-Scale Distribution of Calanus sinicus in the Yellow Sea Cold Water Mass During the Over-Summering Process

文献类型： 外文期刊

作者： Pan, Jun 1 ; Cheng, Fangping 4 ; Yu, Fei 1 ; Shi, Yongqiang 9 ; Sun, Fan 1 ; Si, Guangcheng 1 ; Wei, Chuanjie 1 ; Diao, X 1 ;

作者机构： 1.Chinese Acad Sci, Inst Oceanol, Qingdao, Peoples R China

2.Univ Chinese Acad Sci, Beijing, Peoples R China

3.Chinese Acad Sci, Ctr Ocean Megasci, Qingdao, Peoples R China

4.Chinese Acad Sci, Inst Oceanol, CAS Key Lab Marine Ecol & Environm Sci, Qingdao, Peoples R China

5.Minist Nat Resources, Key Lab Marine Ecosyst Dynam, Hangzhou, Peoples R China

6.Minist Nat Resources, Inst Oceanog 2, Hangzhou, Peoples R China

7.Chinese Acad Sci, CAS Key Lab Ocean Circulat & Waves, Qingdao, Peoples R China

8.Pilot Natl Lab Marine Sci & Technol Qingdao, Marine Dynam Proc & Climate Funct Lab, Qingdao, Peoples R China

9.Chinese Acad Fishery Sci, Yellow Sea Fisheries Res Inst, Qingdao, Peoples R China

10.Chinese Acad Sci, Jiaozhou Bay Marine Ecosyst Res Stn, Qingdao, Peoples R China

关键词： copepod; Calanus sinicus; Yellow Sea Cold Water Mass; diel vertical migration; subsurface chlorophyll a maximum layer

期刊名称：FRONTIERS IN MARINE SCIENCE （ 影响因子：4.912； 五年影响因子：5.125 ）

ISSN：

年卷期： 2021 年 8 卷

页码：

收录情况： SCI

摘要： Calanus sinicus, a temperate copepod with a lethal temperature >27 degrees C, is one of the key species in Chinese coastal marine ecosystems. The C. sinicus population increases in spring and declines in early summer annually due to increasing water temperature. Numerous C. sinicus individuals then congregate in the Yellow Sea Cold Water Mass (YSCWM) and remain under the thermocline from early summer to early autumn. Development and reproduction is halted in this cold and foodless bottom water and they avoid ascending to the hot surface water, which is regarded as an over-summering strategy. Based on discrete water sampling approaches, previous studies demonstrated that higher chlorophyll a (Chl a) levels appeared in the mixed hot surface water layer; however, the subsurface chlorophyll a maximum layer (SCML) has seldom been described. In the present study, various probes and a visual plankton recorder (VPR) were used to determine the fine vertical distributions of environmental factors and C. sinicus. VPR observations showed the ecological responses in fine scale and indicated that few C. sinicus individuals ascend at night, the main population preferred to remain below the SCML all day long. The results demonstrated that a constant thin SCML existed in the YSCWM area, and that the SCML location coincided with or was beneath the thermocline and halocline layers, where the temperature was suitable for C. sinicus. The relationship between abundance and Chl a, showed the diel vertical migration trend of C. sinicus to feed at night in the YSCWM area. In addition to temperature as a main influencing factor, dissolved oxygen concentrations and column depth were also influencing factors. Therefore, in addition to avoiding high surface temperature, energy supplement may be an important driving force confining the diel vertical migration of C. sinicus in the Yellow Sea in summer.

  • 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