Genetic diversity and population structure of the northern snakehead (Channa argus Channidae: Teleostei) in central China: implications for conservation and management
| العنوان: | Genetic diversity and population structure of the northern snakehead (Channa argus Channidae: Teleostei) in central China: implications for conservation and management |
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| المؤلفون: | Wei Ji, Xiang-Zhao Guo, Gui-Wei Zou, Jonathan P. A. Gardner, Gui-Rong Zhang, Kai-Jian Wei, Ruo-Jin Yan, Kun-Ci Chen |
| المصدر: | Conservation Genetics. 19:467-480 |
| بيانات النشر: | Springer Science and Business Media LLC, 2017. |
| سنة النشر: | 2017 |
| مصطلحات موضوعية: | 0106 biological sciences, 0301 basic medicine, education.field_of_study, Channa argus, Genetic diversity, Ecology, Population size, Population, Population genetics, Biology, biology.organism_classification, 010603 evolutionary biology, 01 natural sciences, 03 medical and health sciences, 030104 developmental biology, Population bottleneck, Effective population size, Genetic structure, Genetics, education, human activities, Ecology, Evolution, Behavior and Systematics |
| الوصف: | Major threats to freshwater fish diversity now include loss of native genetic diversity as a consequence of translocations of fishes between sites and from hatcheries to sites, and small effective population sizes resulting from overfishing and/or habitat loss. Ten polymorphic microsatellite markers were employed to evaluate genetic diversity, population genetic structure and gene flow amongst nine populations of the ecologically and economically important fish, the northern snakehead (Channa argus), in three river systems in central China. Multiple analyses revealed evidence of high genetic diversity and pronounced subdivision based on both regional separation and on river systems. A lack of evidence of genetic bottleneck over recent generations was consistent with the long-term stability of population size and contemporary distribution. The effective population sizes for most C. argus populations were small, suggesting the need for future conservation efforts focusing on these populations. Different lines of evidence point to the local enhancement of stocks by both aquaculture-reared fish and the transfer of wild fish. This study illustrates how human activities may affect genetic diversity and population genetic structure of C. argus populations, and highlights the need for new management regimes to protect native freshwater fish genetic diversity. |
| تدمد: | 1572-9737 1566-0621 |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_________::bc6eb047aec40a2d8e41db00d0fe14e8 https://doi.org/10.1007/s10592-017-1023-x |
| حقوق: | CLOSED |
| رقم الأكسشن: | edsair.doi...........bc6eb047aec40a2d8e41db00d0fe14e8 |
| قاعدة البيانات: | OpenAIRE |
Find this article in full text from Springer Verlag. | تدمد: | 15729737 15660621 |
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