| Environmental significance of morphological variations in the foraminifer Ammonia aomoriensis (Asano, 1951) and its molecular identification: A study from the Yellow Sea and East China Sea, PR China | |
Lei, Yanli1,6 ; Li, Tiegang2,5,6; Nigam, Rajiv4; Holzmann, Maria3; Lyu, Man1,6
| |
| 2017-10-01 | |
| 发表期刊 | PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY
 |
| 卷号 | 483页码:49-57 |
| 文章类型 | Article |
| 摘要 | Ammonia aomoriensis (Asano 1951) was isolated from 78 samples collected from the Yellow Sea and East China Sea during 2010 to 2014. The species exhibits dimorphism (microspheric and megalospheric forms) and different coiling directions (dextral and sinistral). A fragment of SSU rDNA was sequenced for four specimens of A. aomoriensis exhibiting different morphologies (dextral vs. sinistral, microspheric vs. megalospheric). Our results show that A. aomoriensis from our study sites branch within previously obtained sequences of the same species. In order to test whether morphological differences are environmentally controlled we investigated 667 specimens from Qingdao and Jiaozhou Bay among which 290 were right coiled (dextral) and 377 were left coiled (sinistral). Similarly, 525 were microspheric and 142 were megalospheric. A correlation coefficient was computed to evaluate the relationship between foraminiferal morphology (dimorphism and coiling direction) and environmental parameters (temperature and salinity). A significant positive correlation was detected between the ratio of microspheric/megalospheric forms and salinity (r = 0.719, p < 0.001). No correlation was detected between morphological variations and temperature. Our findings suggest that the ratio of microspheric/megalospheric forms in A. aomoriensis can be used to infer past salinity conditions (and thus fresh water influx) in study areas off China. (C) 2016 The Authors. Published by Elsevier B.V. |
| 关键词 | Paleoclimate Paleoenvironment Reconstruction Salinity Temperature The Yellow Sea |
| DOI | 10.1016/j.palaeo.2016.05.010 |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000411547300005 |
| 引用统计 | |
| 文献类型 | 期刊论文 |
| 版本 | 出版稿 |
| 条目标识符 | http://ir.qdio.ac.cn/handle/337002/135988 |
| 专题 | 海洋生物分类与系统演化实验室 海洋生物标本馆 |
| 作者单位 | 1.Chinese Acad Sci, Inst Oceanol, Qingdao 266071, Peoples R China 2.SOA, Inst Oceanog 1, Key Lab Marine Sedimentol & Environm Geol, Qingdao 266061, Peoples R China 3.Univ Geneva, Dept Genet & Evolut, Geneva, Switzerland 4.Natl Inst Oceanog, Panaji 403004, Goa, India 5.Qingdao Natl Lab Marine Sci & Technol, Lab Marine Geol, Qingdao 266061, Peoples R China 6.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 | Lei, Yanli,Li, Tiegang,Nigam, Rajiv,et al. Environmental significance of morphological variations in the foraminifer Ammonia aomoriensis (Asano, 1951) and its molecular identification: A study from the Yellow Sea and East China Sea, PR China[J]. PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY,2017,483:49-57. |
| APA | Lei, Yanli,Li, Tiegang,Nigam, Rajiv,Holzmann, Maria,&Lyu, Man.(2017).Environmental significance of morphological variations in the foraminifer Ammonia aomoriensis (Asano, 1951) and its molecular identification: A study from the Yellow Sea and East China Sea, PR China.PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY,483,49-57. |
| MLA | Lei, Yanli,et al."Environmental significance of morphological variations in the foraminifer Ammonia aomoriensis (Asano, 1951) and its molecular identification: A study from the Yellow Sea and East China Sea, PR China".PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY 483(2017):49-57. |
| 条目包含的文件 | ||||||
| 文件名称/大小 | 文献类型 | 版本类型 | 开放类型 | 使用许可 | ||
| Environmental signif（1399KB） | 期刊论文 | 出版稿 | 限制开放 | CC BY-NC-SA | 浏览 | |
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。
修改评论