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| The migratory history of anadromous and non-anadromous tapertail anchovy Coilia nasus in the Yangtze River Estuary revealed by the otolith Sr:Ca ratio | |
| Dou, Shuo-Zeng1; Yokouchi, Kazuki2; Yu, Xin1,3; Cao, Liang1; Kuroki, Mari2; Otake, Tsuguo2; Tsukamoto, Katsumi2; Dou, SZ (reprint author), Chinese Acad Sci, Inst Oceanol, Key Lab Marine Ecol & Environm Sci, Qingdao 266071, Peoples R China. | |
| 2012-12-01 | |
| 发表期刊 | ENVIRONMENTAL BIOLOGY OF FISHES
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| ISSN | 0378-1909 |
| 卷号 | 95期号:4页码:481-490 |
| 文章类型 | Article |
| 摘要 | The migratory history of tapertail anchovy Coilia nasus in the Yangtze River Estuary, China was investigated using otolith Sr:Ca ratios and two-dimensional images of the Sr level from an X-ray electron probe microanalyzer (EPMA). The results showed that 17 of the 22 young-of-the-year (YOY) specimens had low Sr:Ca ratios (1.2-2.4 x 10(-3);1.5 +/- 0.3 x 10(-3)) at the central otolith area, indicating their riverine origin and initial freshwater residence. In addition, 11 of the 14 adult specimens had low Sr:Ca ratios (1.3-2.2 x 10(-3); 1.7 +/- 0.4 x 10(-3)) at the central otolith area but showed alternating changes between high (> 4.0 x 10(-3)) and low (< 2.5 x 10(-3)) values outside of this region, reflecting their riverine origin and the migration between freshwater and estuarine habitats. These 28 specimens represented the anadromous population in this region. The other 5 YOY specimens had high Sr:Ca ratios (3.6-5.9 x 10(-3); 4.8 +/- 0.8 x 10(-3)) throughout the life history. Similarly, the other 3 adult specimens had high Sr:Ca ratios (4.0-5.7 x 10(-3); 4.8 +/- 0.7 x 10(-3)) at the central otolith area but showed alternating changes between low and high values outside this region, suggesting that estuarine-origin non-anadromous individuals occurred in this region. The average of the otolith Sr:Ca ratios and Sr level mapping along the life-history transects could be used as a scalar for charting the migratory history of the tapertail anchovy in the Yangtze River Estuary: < 2.0 x 10(-3) for freshwater residence and 3.5-6.0 x 10(-3) for estuarine residence. |
| 关键词 | Otolith Microchemistry Anadromy Estuarine-origin Tapertail Anchovy Habitat Utilization Epma |
| 学科领域 | Ecology ; Marine & Freshwater Biology |
| DOI | 10.1007/s10641-012-0042-1 |
| URL | 查看原文 |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000310425700008 |
| 引用统计 | |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://ir.qdio.ac.cn/handle/337002/12448 |
| 专题 | 海洋生态与环境科学重点实验室 |
| 通讯作者 | Dou, SZ (reprint author), Chinese Acad Sci, Inst Oceanol, Key Lab Marine Ecol & Environm Sci, Qingdao 266071, Peoples R China. |
| 作者单位 | 1.Chinese Acad Sci, Inst Oceanol, Key Lab Marine Ecol & Environm Sci, Qingdao 266071, Peoples R China 2.Univ Tokyo, Atmosphere & Ocean Res Inst, Kashiwa, Chiba 2778564, Japan 3.Chinese Acad Sci, Grad Sch, 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 | Dou, Shuo-Zeng,Yokouchi, Kazuki,Yu, Xin,et al. The migratory history of anadromous and non-anadromous tapertail anchovy Coilia nasus in the Yangtze River Estuary revealed by the otolith Sr:Ca ratio[J]. ENVIRONMENTAL BIOLOGY OF FISHES,2012,95(4):481-490. |
| APA | Dou, Shuo-Zeng.,Yokouchi, Kazuki.,Yu, Xin.,Cao, Liang.,Kuroki, Mari.,...&Dou, SZ .(2012).The migratory history of anadromous and non-anadromous tapertail anchovy Coilia nasus in the Yangtze River Estuary revealed by the otolith Sr:Ca ratio.ENVIRONMENTAL BIOLOGY OF FISHES,95(4),481-490. |
| MLA | Dou, Shuo-Zeng,et al."The migratory history of anadromous and non-anadromous tapertail anchovy Coilia nasus in the Yangtze River Estuary revealed by the otolith Sr:Ca ratio".ENVIRONMENTAL BIOLOGY OF FISHES 95.4(2012):481-490. |
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