Academic Journal
Towards a comprehensive assessment of ichthyofaunal diversity in the Yangtze River estuary: Leveraging environmental DNA technology and bottom trawl surveys
| Title: | Towards a comprehensive assessment of ichthyofaunal diversity in the Yangtze River estuary: Leveraging environmental DNA technology and bottom trawl surveys |
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| Authors: | Shuo Lyu, Jianfeng Tong, Jianhui Wu, Xuefang Wang, Xiaoyu Geng, Chunxia Gao, Yin Wang |
| Source: | Heliyon, Vol 10, Iss 14, Pp e34761- (2024) |
| Publisher Information: | Elsevier, 2024. |
| Publication Year: | 2024 |
| Collection: | LCC:Science (General) LCC:Social sciences (General) |
| Subject Terms: | Yangtze River estuary, Environmental DNA (eDNA), Bottom trawl, Biodiversity, Science (General), Q1-390, Social sciences (General), H1-99 |
| More Details: | The fishery resources in the Yangtze River Estuary (YRE) have declined drastically because of overfishing and environmental changes, leading to ecosystem degradation of the YRE, and bringing numerous rare fish species to the brink of extinction. As a new technology with great prospects for popularization and application, environmental DNA (eDNA) technology has been utilized and proven by many studies to have high potential in revealing the various species' biodiversity. In this study, we analyzed the species composition and diversity of the Yangtze River Estuary using a combination of eDNA technology and bottom trawling approaches, and later, the comparison of both methods. The results showed that combining eDNA technology and bottom trawling, 30 fish species from 7 orders and 11 families were identified. Among the 30 fish species, a total of six species of fish could be observed in catches from both methods. Perciformes were the most abundant and Coilia mystus was the dominant species. According to diversity indices, the eDNA technology reveals significant differences in fish community richness and diversity in the Yangtze River Estuary compared to the bottom trawl. In summary, the eDNA technology is feasible for monitoring fishery resources in the waters of the Yangtze River Estuary, thereby serving as a valuable supplementary tool for conducting comprehensive surveys in this region. Moreover, it holds significant implications and promising prospects for conserving the diverse ecosystem of the YRE in future conservation efforts. |
| Document Type: | article |
| File Description: | electronic resource |
| Language: | English |
| ISSN: | 2405-8440 |
| Relation: | http://www.sciencedirect.com/science/article/pii/S240584402410792X; https://doaj.org/toc/2405-8440 |
| DOI: | 10.1016/j.heliyon.2024.e34761 |
| Access URL: | https://doaj.org/article/cd2d58d75a6a4376b39f6e02e29a70e6 |
| Accession Number: | edsdoj.2d58d75a6a4376b39f6e02e29a70e6 |
| Database: | Directory of Open Access Journals |
| ISSN: | 24058440 |
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| DOI: | 10.1016/j.heliyon.2024.e34761 |
| Published in: | Heliyon |
| Language: | English |