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| Annual variation in Calanus sinicus abundance and population structure in the northern boundary area of the Yellow Sea Cold Water Mass | |
Yin Jiehui1,2; Zhang Guangtao1 ; Zhao Zengxia1; Wang Shiwei1; Wan Aiyong1; Zhang, GT
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| 2013-11-01 | |
| 发表期刊 | CHINESE JOURNAL OF OCEANOLOGY AND LIMNOLOGY
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| ISSN | 0254-4059 |
| 卷号 | 31期号:6页码:1284-1294 |
| 文章类型 | Article |
| 摘要 | The Yellow Sea Cold Water Mass (YSCWM) was suggested as an over-summering site of the dominant copepod species Calanus sinicus in coastal Chinese seas. Population abundance and structure were investigated by monthly sampling along three transects across the northern boundary of the YSCWM during 2009-2010. Results show that thermal stratification existed from June to October and that the vertical thermal difference increased with depth. Generally, total abundance was lowest in October and highest in June, and the female/male sex ratio was highest in February and lowest in August. Evident spatial differences in abundance were observed during the existence of the YSCWM. In June, total abundance averaged 158.8 ind/m(3) at well-stratified stations, and 532.1 ind/m(3) at other stations. Similarly, high abundances of 322.0 and 324.4 ind/m(3) were recorded from July to August inside the YSCWM, while the abundance decreased from 50.4 to 1.9 ind/m(3) outside the water mass. C. sinicus distribution tended to even out over the study area in September when the YSCWM disappeared. We believe that the YSCWM may retard population recruitment in spring and preserve abundant cohorts in summer. The summer population was transported to neritic waters in autumn. In addition to low temperatures, stable vertical structure was also an essential condition for preservation of the summer population. C. sinicus can survive the summer in marginal areas in high abundance, but the population structure is completely different in terms of C5 proportion and sex ratio.; The Yellow Sea Cold Water Mass (YSCWM) was suggested as an over-summering site of the dominant copepod species Calanus sinicus in coastal Chinese seas. Population abundance and structure were investigated by monthly sampling along three transects across the northern boundary of the YSCWM during 2009-2010. Results show that thermal stratification existed from June to October and that the vertical thermal difference increased with depth. Generally, total abundance was lowest in October and highest in June, and the female/male sex ratio was highest in February and lowest in August. Evident spatial differences in abundance were observed during the existence of the YSCWM. In June, total abundance averaged 158.8 ind/m(3) at well-stratified stations, and 532.1 ind/m(3) at other stations. Similarly, high abundances of 322.0 and 324.4 ind/m(3) were recorded from July to August inside the YSCWM, while the abundance decreased from 50.4 to 1.9 ind/m(3) outside the water mass. C. sinicus distribution tended to even out over the study area in September when the YSCWM disappeared. We believe that the YSCWM may retard population recruitment in spring and preserve abundant cohorts in summer. The summer population was transported to neritic waters in autumn. In addition to low temperatures, stable vertical structure was also an essential condition for preservation of the summer population. C. sinicus can survive the summer in marginal areas in high abundance, but the population structure is completely different in terms of C5 proportion and sex ratio. |
| 关键词 | Calanus Sinicus Yellow Sea Cold Water Mass (Yscwm) Over-summer Strategy Boundary Area Thermal Stratification |
| 学科领域 | Marine & Freshwater Biology ; Oceanography |
| DOI | 10.1007/s00343-013-3004-3 |
| URL | 查看原文 |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS研究方向 | Marine & Freshwater Biology ; Oceanography |
| WOS类目 | Limnology ; Oceanography |
| WOS记录号 | WOS:000326628800015 |
| WOS关键词 | CONTINENTAL-SHELF ; BOTTOM WATER ; LIFE-CYCLE ; CHINA SEA ; COPEPOD ; REPRODUCTION ; TEMPERATURE ; CALANOIDA ; SUMMER ; RATIOS |
| WOS标题词 | Science & Technology ; Life Sciences & Biomedicine ; Physical Sciences |
| 引用统计 | |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://ir.qdio.ac.cn/handle/337002/16457 |
| 专题 | 海洋生态与环境科学重点实验室 胶州湾海洋生态系统国家野外研究站 |
| 通讯作者 | Zhang, GT |
| 作者单位 | 1.Chinese Acad Sci, Inst Oceanol, Jiaozhou Bay Marine Ecosyst Res Stn, Qingdao 266071, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China |
| 第一作者单位 | 中国科学院海洋研究所 |
| 推荐引用方式 GB/T 7714 | Yin Jiehui,Zhang Guangtao,Zhao Zengxia,et al. Annual variation in Calanus sinicus abundance and population structure in the northern boundary area of the Yellow Sea Cold Water Mass[J]. CHINESE JOURNAL OF OCEANOLOGY AND LIMNOLOGY,2013,31(6):1284-1294. |
| APA | Yin Jiehui,Zhang Guangtao,Zhao Zengxia,Wang Shiwei,Wan Aiyong,&Zhang, GT.(2013).Annual variation in Calanus sinicus abundance and population structure in the northern boundary area of the Yellow Sea Cold Water Mass.CHINESE JOURNAL OF OCEANOLOGY AND LIMNOLOGY,31(6),1284-1294. |
| MLA | Yin Jiehui,et al."Annual variation in Calanus sinicus abundance and population structure in the northern boundary area of the Yellow Sea Cold Water Mass".CHINESE JOURNAL OF OCEANOLOGY AND LIMNOLOGY 31.6(2013):1284-1294. |
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