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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
ISSN0378-1909
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
DOI10.1007/s10641-012-0042-1
URL查看原文
收录类别SCI
语种英语
WOS记录号WOS:000310425700008
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被引频次:23[WOS]   [WOS记录]     [WOS相关记录]
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
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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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