Fish Diversity Monitored by Environmental DNA in the Yangtze River Mainstream
Surveys and assessments based on environmental DNA are not only efficient and time-saving, but also cause less harm to monitoring targets. Environmental DNA has become a common tool for the assessment and monitoring of aquatic organisms. In this study, we investigated fish resources in the Yangtze R...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
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MDPI AG
2021-12-01
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| Series: | Fishes |
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| Online Access: | https://www.mdpi.com/2410-3888/7/1/1 |
| _version_ | 1798000562756648960 |
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| author | Hui Jia Hui Zhang Weiwei Xian |
| author_facet | Hui Jia Hui Zhang Weiwei Xian |
| author_sort | Hui Jia |
| collection | DOAJ |
| description | Surveys and assessments based on environmental DNA are not only efficient and time-saving, but also cause less harm to monitoring targets. Environmental DNA has become a common tool for the assessment and monitoring of aquatic organisms. In this study, we investigated fish resources in the Yangtze River mainstream using environmental DNA, and the variations in fish during two seasons (spring and autumn) were compared. The results showed that 13 species were identified in spring, and nine species of fish were identified in autumn. The fish with higher eDNA detection were <i>Sinibotia superciliaris</i>, <i>Tachysurus fulvidraco</i>, <i>Cyprinus carpio</i>, <i>Ctenopharyngodon Idella</i>, <i>Monopterus albus</i>, <i>Acanthogobius hasta</i>, <i>Saurogobio dabryi</i>, <i>Oncorhynchus mykiss</i>, <i>Mugil cephalus</i>, <i>Odontamblyopus rubicundus</i>. Seasonal variation between spring and autumn was not significant, and the environmental factors had different effects on fish assemblages during the two seasons. Our study used the eDNA technique to monitor the composition of fish in the spring and autumn in the Yangtze River mainstream, providing a new technology for the long-term management and protection of fishery resources in the region. Of course, problems such as pollution and insufficient databases are the current shortcomings of environmental DNA, which will be the focus of our future research and study. |
| first_indexed | 2024-04-11T11:23:22Z |
| format | Article |
| id | doaj.art-0c507d0a52244901abd73129c6a46357 |
| institution | Directory Open Access Journal |
| issn | 2410-3888 |
| language | English |
| last_indexed | 2024-04-11T11:23:22Z |
| publishDate | 2021-12-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Fishes |
| spelling | doaj.art-0c507d0a52244901abd73129c6a463572022-12-22T04:26:31ZengMDPI AGFishes2410-38882021-12-0171110.3390/fishes7010001Fish Diversity Monitored by Environmental DNA in the Yangtze River MainstreamHui Jia0Hui Zhang1Weiwei Xian2CAS Key Laboratory of Marine Ecology and Environmental Sciences, Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, ChinaCAS Key Laboratory of Marine Ecology and Environmental Sciences, Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, ChinaCAS Key Laboratory of Marine Ecology and Environmental Sciences, Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, ChinaSurveys and assessments based on environmental DNA are not only efficient and time-saving, but also cause less harm to monitoring targets. Environmental DNA has become a common tool for the assessment and monitoring of aquatic organisms. In this study, we investigated fish resources in the Yangtze River mainstream using environmental DNA, and the variations in fish during two seasons (spring and autumn) were compared. The results showed that 13 species were identified in spring, and nine species of fish were identified in autumn. The fish with higher eDNA detection were <i>Sinibotia superciliaris</i>, <i>Tachysurus fulvidraco</i>, <i>Cyprinus carpio</i>, <i>Ctenopharyngodon Idella</i>, <i>Monopterus albus</i>, <i>Acanthogobius hasta</i>, <i>Saurogobio dabryi</i>, <i>Oncorhynchus mykiss</i>, <i>Mugil cephalus</i>, <i>Odontamblyopus rubicundus</i>. Seasonal variation between spring and autumn was not significant, and the environmental factors had different effects on fish assemblages during the two seasons. Our study used the eDNA technique to monitor the composition of fish in the spring and autumn in the Yangtze River mainstream, providing a new technology for the long-term management and protection of fishery resources in the region. Of course, problems such as pollution and insufficient databases are the current shortcomings of environmental DNA, which will be the focus of our future research and study.https://www.mdpi.com/2410-3888/7/1/1environmental DNAfishseasonal comparisonYangtze Riverenvironmental factors |
| spellingShingle | Hui Jia Hui Zhang Weiwei Xian Fish Diversity Monitored by Environmental DNA in the Yangtze River Mainstream Fishes environmental DNA fish seasonal comparison Yangtze River environmental factors |
| title | Fish Diversity Monitored by Environmental DNA in the Yangtze River Mainstream |
| title_full | Fish Diversity Monitored by Environmental DNA in the Yangtze River Mainstream |
| title_fullStr | Fish Diversity Monitored by Environmental DNA in the Yangtze River Mainstream |
| title_full_unstemmed | Fish Diversity Monitored by Environmental DNA in the Yangtze River Mainstream |
| title_short | Fish Diversity Monitored by Environmental DNA in the Yangtze River Mainstream |
| title_sort | fish diversity monitored by environmental dna in the yangtze river mainstream |
| topic | environmental DNA fish seasonal comparison Yangtze River environmental factors |
| url | https://www.mdpi.com/2410-3888/7/1/1 |
| work_keys_str_mv | AT huijia fishdiversitymonitoredbyenvironmentaldnaintheyangtzerivermainstream AT huizhang fishdiversitymonitoredbyenvironmentaldnaintheyangtzerivermainstream AT weiweixian fishdiversitymonitoredbyenvironmentaldnaintheyangtzerivermainstream |