Revealing Population Connectivity of the Estuarine Tapertail Anchovy <i>Coilia nasus</i> in the Changjiang River Estuary and Its Adjacent Waters Using Otolith Microchemistry
The estuarine tapertail anchovy, <i>Coilia nasus,</i> is a migratory fish with high economic value in China. We collected fish from the Changjiang River (the Yangtze River) estuary, the Qiantang River estuary, and the southern Yellow Sea, and studied their relationships using otolith ele...
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MDPI AG
2022-06-01
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| Series: | Fishes |
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| Online Access: | https://www.mdpi.com/2410-3888/7/4/147 |
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| author | Tao Jiang Hongbo Liu Yuhai Hu Xiubao Chen Jian Yang |
| author_facet | Tao Jiang Hongbo Liu Yuhai Hu Xiubao Chen Jian Yang |
| author_sort | Tao Jiang |
| collection | DOAJ |
| description | The estuarine tapertail anchovy, <i>Coilia nasus,</i> is a migratory fish with high economic value in China. We collected fish from the Changjiang River (the Yangtze River) estuary, the Qiantang River estuary, and the southern Yellow Sea, and studied their relationships using otolith elemental and stable isotopic microchemistry signatures to assess the population connectivity of <i>C. nasus</i>. Results show that, in addition to Ca, other elements were present in the otolith core. The δ<sup>18</sup>O, Na/Ca, Fe/Ca, and Cu/Ca values of the Qiantang population were significantly higher than those of the others, whereas its δ<sup>13</sup>C and Ba/Ca values were found to be significantly lower. Otolith multi-element composition and stable isotope ratios differed significantly between the Qiantang and Changjiang estuary groups (<i>p</i> < 0.05); however, no difference was observed between the latter and the Yellow Sea group. Cluster analysis, linear discriminant analysis, and a self-organizing map strongly suggest possible connectivity between the fish populations of the Changjiang estuary and Yellow Sea, while the population of the Qiantang River estuary appears to be independent. Notably, results suggest a much closer connectivity between the fish populations of the Changjiang River and the Yellow Sea. |
| first_indexed | 2024-03-09T04:29:21Z |
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| institution | Directory Open Access Journal |
| issn | 2410-3888 |
| language | English |
| last_indexed | 2024-03-09T04:29:21Z |
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| spelling | doaj.art-fe183a715ec048cc991c7b36b88a993a2023-12-03T13:38:31ZengMDPI AGFishes2410-38882022-06-017414710.3390/fishes7040147Revealing Population Connectivity of the Estuarine Tapertail Anchovy <i>Coilia nasus</i> in the Changjiang River Estuary and Its Adjacent Waters Using Otolith MicrochemistryTao Jiang0Hongbo Liu1Yuhai Hu2Xiubao Chen3Jian Yang4Laboratory of Fishery Microchemistry, Freshwater Fisheries Research Center, Chinese Academy of Fishery Sciences, Wuxi 214081, ChinaLaboratory of Fishery Microchemistry, Freshwater Fisheries Research Center, Chinese Academy of Fishery Sciences, Wuxi 214081, ChinaWuxi Fisheries College, Nanjing Agricultural University, Wuxi 214081, ChinaLaboratory of Fishery Microchemistry, Freshwater Fisheries Research Center, Chinese Academy of Fishery Sciences, Wuxi 214081, ChinaLaboratory of Fishery Microchemistry, Freshwater Fisheries Research Center, Chinese Academy of Fishery Sciences, Wuxi 214081, ChinaThe estuarine tapertail anchovy, <i>Coilia nasus,</i> is a migratory fish with high economic value in China. We collected fish from the Changjiang River (the Yangtze River) estuary, the Qiantang River estuary, and the southern Yellow Sea, and studied their relationships using otolith elemental and stable isotopic microchemistry signatures to assess the population connectivity of <i>C. nasus</i>. Results show that, in addition to Ca, other elements were present in the otolith core. The δ<sup>18</sup>O, Na/Ca, Fe/Ca, and Cu/Ca values of the Qiantang population were significantly higher than those of the others, whereas its δ<sup>13</sup>C and Ba/Ca values were found to be significantly lower. Otolith multi-element composition and stable isotope ratios differed significantly between the Qiantang and Changjiang estuary groups (<i>p</i> < 0.05); however, no difference was observed between the latter and the Yellow Sea group. Cluster analysis, linear discriminant analysis, and a self-organizing map strongly suggest possible connectivity between the fish populations of the Changjiang estuary and Yellow Sea, while the population of the Qiantang River estuary appears to be independent. Notably, results suggest a much closer connectivity between the fish populations of the Changjiang River and the Yellow Sea.https://www.mdpi.com/2410-3888/7/4/147<i>Coilia nasus</i>otolithriver estuaryYellow Seaelemental signaturestable isotopic signature |
| spellingShingle | Tao Jiang Hongbo Liu Yuhai Hu Xiubao Chen Jian Yang Revealing Population Connectivity of the Estuarine Tapertail Anchovy <i>Coilia nasus</i> in the Changjiang River Estuary and Its Adjacent Waters Using Otolith Microchemistry Fishes <i>Coilia nasus</i> otolith river estuary Yellow Sea elemental signature stable isotopic signature |
| title | Revealing Population Connectivity of the Estuarine Tapertail Anchovy <i>Coilia nasus</i> in the Changjiang River Estuary and Its Adjacent Waters Using Otolith Microchemistry |
| title_full | Revealing Population Connectivity of the Estuarine Tapertail Anchovy <i>Coilia nasus</i> in the Changjiang River Estuary and Its Adjacent Waters Using Otolith Microchemistry |
| title_fullStr | Revealing Population Connectivity of the Estuarine Tapertail Anchovy <i>Coilia nasus</i> in the Changjiang River Estuary and Its Adjacent Waters Using Otolith Microchemistry |
| title_full_unstemmed | Revealing Population Connectivity of the Estuarine Tapertail Anchovy <i>Coilia nasus</i> in the Changjiang River Estuary and Its Adjacent Waters Using Otolith Microchemistry |
| title_short | Revealing Population Connectivity of the Estuarine Tapertail Anchovy <i>Coilia nasus</i> in the Changjiang River Estuary and Its Adjacent Waters Using Otolith Microchemistry |
| title_sort | revealing population connectivity of the estuarine tapertail anchovy i coilia nasus i in the changjiang river estuary and its adjacent waters using otolith microchemistry |
| topic | <i>Coilia nasus</i> otolith river estuary Yellow Sea elemental signature stable isotopic signature |
| url | https://www.mdpi.com/2410-3888/7/4/147 |
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