Impact of anthropogenic activities on changes of ichthyofauna in the middle and lower Xiang River
With the population increasing, fish communities, as important components in the river system, were inescapably impacted by human activities. To investigate these impacts, we characterized the fish community's composition by environmental DNA metabarcoding in the urban and suburban sites along...
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| Format: | Article |
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KeAi Communications Co., Ltd.
2022-11-01
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| Series: | Aquaculture and Fisheries |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2468550X2100085X |
| _version_ | 1797204454786727936 |
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| author | Cong Zeng Yao Wen Xinhua Liu Jianbo Yu Binsong Jin Deliang Li |
| author_facet | Cong Zeng Yao Wen Xinhua Liu Jianbo Yu Binsong Jin Deliang Li |
| author_sort | Cong Zeng |
| collection | DOAJ |
| description | With the population increasing, fish communities, as important components in the river system, were inescapably impacted by human activities. To investigate these impacts, we characterized the fish community's composition by environmental DNA metabarcoding in the urban and suburban sites along Xiang River in central China. The results showed that 32 species were identified, and most species were from Cypriniform. The analysis indicated no significant differences in fish communities among the three urban areas. However, significant differences were observed between the bank solidified and non-solidified areas, which indicated that the channelization significantly influenced the biodiversity and abundances. An alien species, Clarias gariepinus, was discovered in all examined sites, and it was negatively associated with ten native species. Furthermore, human populations and acidification were also negatively related to diversity. Our findings clearly showed that the consequences of anthropogenic activities shaped ichthyofauna and caused biodiversity loss in the urban river. |
| first_indexed | 2024-04-12T08:44:57Z |
| format | Article |
| id | doaj.art-4c4e2ceea16240f2b652a9cddc04ac7b |
| institution | Directory Open Access Journal |
| issn | 2468-550X |
| language | English |
| last_indexed | 2024-04-24T08:35:29Z |
| publishDate | 2022-11-01 |
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| series | Aquaculture and Fisheries |
| spelling | doaj.art-4c4e2ceea16240f2b652a9cddc04ac7b2024-04-16T16:55:31ZengKeAi Communications Co., Ltd.Aquaculture and Fisheries2468-550X2022-11-0176693702Impact of anthropogenic activities on changes of ichthyofauna in the middle and lower Xiang RiverCong Zeng0Yao Wen1Xinhua Liu2Jianbo Yu3Binsong Jin4Deliang Li5College of Animal Science and Technology, Hunan Agricultural University, Changsha, 410128, China; School of Oceanography, Shanghai Jiao Tong University, Shanghai, 200030, ChinaCollege of Animal Science and Technology, Hunan Agricultural University, Changsha, 410128, ChinaCollege of Animal Science and Technology, Hunan Agricultural University, Changsha, 410128, ChinaCollege of Animal Science and Technology, Hunan Agricultural University, Changsha, 410128, ChinaNational Ecosystem Research Station of Jiangxi Poyang Lake Wetland, Institute of Life Science, Nanchang University, Nanchang, 330031, ChinaCollege of Animal Science and Technology, Hunan Agricultural University, Changsha, 410128, China; Corresponding author. No.1 Nongda Road, College of Animal Science and Technology, Hunan Agricultural University, Changsha, 410128, China.With the population increasing, fish communities, as important components in the river system, were inescapably impacted by human activities. To investigate these impacts, we characterized the fish community's composition by environmental DNA metabarcoding in the urban and suburban sites along Xiang River in central China. The results showed that 32 species were identified, and most species were from Cypriniform. The analysis indicated no significant differences in fish communities among the three urban areas. However, significant differences were observed between the bank solidified and non-solidified areas, which indicated that the channelization significantly influenced the biodiversity and abundances. An alien species, Clarias gariepinus, was discovered in all examined sites, and it was negatively associated with ten native species. Furthermore, human populations and acidification were also negatively related to diversity. Our findings clearly showed that the consequences of anthropogenic activities shaped ichthyofauna and caused biodiversity loss in the urban river.http://www.sciencedirect.com/science/article/pii/S2468550X2100085XEnvironmental DNAHuman disturbancesFish communitiesXiang riverBiodiversityConservation |
| spellingShingle | Cong Zeng Yao Wen Xinhua Liu Jianbo Yu Binsong Jin Deliang Li Impact of anthropogenic activities on changes of ichthyofauna in the middle and lower Xiang River Aquaculture and Fisheries Environmental DNA Human disturbances Fish communities Xiang river Biodiversity Conservation |
| title | Impact of anthropogenic activities on changes of ichthyofauna in the middle and lower Xiang River |
| title_full | Impact of anthropogenic activities on changes of ichthyofauna in the middle and lower Xiang River |
| title_fullStr | Impact of anthropogenic activities on changes of ichthyofauna in the middle and lower Xiang River |
| title_full_unstemmed | Impact of anthropogenic activities on changes of ichthyofauna in the middle and lower Xiang River |
| title_short | Impact of anthropogenic activities on changes of ichthyofauna in the middle and lower Xiang River |
| title_sort | impact of anthropogenic activities on changes of ichthyofauna in the middle and lower xiang river |
| topic | Environmental DNA Human disturbances Fish communities Xiang river Biodiversity Conservation |
| url | http://www.sciencedirect.com/science/article/pii/S2468550X2100085X |
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