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Drifting with Flow versus Self-Migrating—How Do Young Anadromous Fish Move to the Sea?

The downriver migration process of young anadromous fish has a far-reaching impact on their survival rate and the efficacy of hatchery-reared fish release, but it is poorly understood. Moreover, the impact of dams on the fish remains unclear. The Chinese sturgeon is an anadromous and dam-affected fi...

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Detalles Bibliográficos
Autor principal: Huang, Zhenli
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Elsevier 2019
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6734002/
https://www.ncbi.nlm.nih.gov/pubmed/31494493
http://dx.doi.org/10.1016/j.isci.2019.08.029
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author Huang, Zhenli
author_facet Huang, Zhenli
author_sort Huang, Zhenli
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description The downriver migration process of young anadromous fish has a far-reaching impact on their survival rate and the efficacy of hatchery-reared fish release, but it is poorly understood. Moreover, the impact of dams on the fish remains unclear. The Chinese sturgeon is an anadromous and dam-affected fish in the Yangtze River. Here, we propose a novel theoretical framework to reveal the migration process of young Chinese sturgeon. We clarify the effects of active swimming of fish and water flow on the downriver migration and the parametric traits of the migrational stages. Then, we show that the young fish migrate downriver along the inshore waters in a gradually transforming manner from passive drift to active swimming. Lastly, we evaluate the impact of the Gezhouba Dam (GD) on the migration of the young fish, as well as demonstrate the life cycles of Chinese sturgeon in the Yangtze River pre- and post-GD.
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spelling pubmed-67340022019-09-12 Drifting with Flow versus Self-Migrating—How Do Young Anadromous Fish Move to the Sea? Huang, Zhenli iScience Article The downriver migration process of young anadromous fish has a far-reaching impact on their survival rate and the efficacy of hatchery-reared fish release, but it is poorly understood. Moreover, the impact of dams on the fish remains unclear. The Chinese sturgeon is an anadromous and dam-affected fish in the Yangtze River. Here, we propose a novel theoretical framework to reveal the migration process of young Chinese sturgeon. We clarify the effects of active swimming of fish and water flow on the downriver migration and the parametric traits of the migrational stages. Then, we show that the young fish migrate downriver along the inshore waters in a gradually transforming manner from passive drift to active swimming. Lastly, we evaluate the impact of the Gezhouba Dam (GD) on the migration of the young fish, as well as demonstrate the life cycles of Chinese sturgeon in the Yangtze River pre- and post-GD. Elsevier 2019-08-22 /pmc/articles/PMC6734002/ /pubmed/31494493 http://dx.doi.org/10.1016/j.isci.2019.08.029 Text en © 2019 The Author(s) http://creativecommons.org/licenses/by-nc-nd/4.0/ This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/).
spellingShingle Article
Huang, Zhenli
Drifting with Flow versus Self-Migrating—How Do Young Anadromous Fish Move to the Sea?
title Drifting with Flow versus Self-Migrating—How Do Young Anadromous Fish Move to the Sea?
title_full Drifting with Flow versus Self-Migrating—How Do Young Anadromous Fish Move to the Sea?
title_fullStr Drifting with Flow versus Self-Migrating—How Do Young Anadromous Fish Move to the Sea?
title_full_unstemmed Drifting with Flow versus Self-Migrating—How Do Young Anadromous Fish Move to the Sea?
title_short Drifting with Flow versus Self-Migrating—How Do Young Anadromous Fish Move to the Sea?
title_sort drifting with flow versus self-migrating—how do young anadromous fish move to the sea?
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6734002/
https://www.ncbi.nlm.nih.gov/pubmed/31494493
http://dx.doi.org/10.1016/j.isci.2019.08.029
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