Seasonal Fish Assemblage Structure Using Environmental DNA in the Yangtze Estuary and Its Adjacent Waters
The fisheries resources of the Yangtze Estuary and its adjacent waters have undergone dramatic declines as a consequence of environmental changes and human activities, with traditional ecological investigations demonstrating progressive decreases in species diversity and annual numbers in the fisher...
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| Format: | Article |
| Language: | English |
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Frontiers Media S.A.
2019-09-01
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| Series: | Frontiers in Marine Science |
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| Online Access: | https://www.frontiersin.org/article/10.3389/fmars.2019.00515/full |
| _version_ | 1819210334878040064 |
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| author | Hui Zhang Hui Zhang Hui Zhang Hui Zhang Susumu Yoshizawa Wataru Iwasaki Wataru Iwasaki Weiwei Xian Weiwei Xian Weiwei Xian |
| author_facet | Hui Zhang Hui Zhang Hui Zhang Hui Zhang Susumu Yoshizawa Wataru Iwasaki Wataru Iwasaki Weiwei Xian Weiwei Xian Weiwei Xian |
| author_sort | Hui Zhang |
| collection | DOAJ |
| description | The fisheries resources of the Yangtze Estuary and its adjacent waters have undergone dramatic declines as a consequence of environmental changes and human activities, with traditional ecological investigations demonstrating progressive decreases in species diversity and annual numbers in the fisheries resource. Environmental DNA (eDNA) technology has been demonstrated as an effective tool by many studies for detecting fish species, monitoring fish biodiversity, and indicating the abundance of fish. In the present study, we chose the Yangtze Estuary and its adjacent waters as a primary research area to investigate fish assemblage structure using eDNA technology. A total of 50 eDNA samples were collected in the estuary in 2018. The results showed that 41 operational taxonomic units were identified from three seasons, with 18, 12, and 33 fish species associated specifically with spring, summer and autumn, respectively. The fish assemblage differed significantly among seasons. Canonical correspondence analysis showed that water temperature, salinity, and dissolved oxygen were the main environmental factors affecting structure of the seasonal assemblages. Results of the present study indicate that eDNA technology can be an effective tool not only for fisheries monitoring, but might also importantly assist marine resources conservation, sustainable exploitation of fisheries, the aquatic products processing industry, eco-friendly development, and socioeconomic stability. |
| first_indexed | 2024-12-23T06:09:32Z |
| format | Article |
| id | doaj.art-c014a10690564384a15e60f0b21ab843 |
| institution | Directory Open Access Journal |
| issn | 2296-7745 |
| language | English |
| last_indexed | 2024-12-23T06:09:32Z |
| publishDate | 2019-09-01 |
| publisher | Frontiers Media S.A. |
| record_format | Article |
| series | Frontiers in Marine Science |
| spelling | doaj.art-c014a10690564384a15e60f0b21ab8432022-12-21T17:57:29ZengFrontiers Media S.A.Frontiers in Marine Science2296-77452019-09-01610.3389/fmars.2019.00515474842Seasonal Fish Assemblage Structure Using Environmental DNA in the Yangtze Estuary and Its Adjacent WatersHui Zhang0Hui Zhang1Hui Zhang2Hui Zhang3Susumu Yoshizawa4Wataru Iwasaki5Wataru Iwasaki6Weiwei Xian7Weiwei Xian8Weiwei Xian9CAS Key Laboratory of Marine Ecology and Environmental Sciences, Institute of Oceanology, Chinese Academy of Sciences, Qingdao, ChinaLaboratory for Marine Ecology and Environmental Science, Qingdao National Laboratory for Marine Science and Technology, Qingdao, ChinaCenter for Ocean Mega-Science, Chinese Academy of Sciences, Qingdao, ChinaAtmosphere and Ocean Research Institute, The University of Tokyo, Chiba, JapanAtmosphere and Ocean Research Institute, The University of Tokyo, Chiba, JapanAtmosphere and Ocean Research Institute, The University of Tokyo, Chiba, JapanDepartment of Biological Sciences, Graduate School of Science, The University of Tokyo, Tokyo, JapanCAS Key Laboratory of Marine Ecology and Environmental Sciences, Institute of Oceanology, Chinese Academy of Sciences, Qingdao, ChinaLaboratory for Marine Ecology and Environmental Science, Qingdao National Laboratory for Marine Science and Technology, Qingdao, ChinaCenter for Ocean Mega-Science, Chinese Academy of Sciences, Qingdao, ChinaThe fisheries resources of the Yangtze Estuary and its adjacent waters have undergone dramatic declines as a consequence of environmental changes and human activities, with traditional ecological investigations demonstrating progressive decreases in species diversity and annual numbers in the fisheries resource. Environmental DNA (eDNA) technology has been demonstrated as an effective tool by many studies for detecting fish species, monitoring fish biodiversity, and indicating the abundance of fish. In the present study, we chose the Yangtze Estuary and its adjacent waters as a primary research area to investigate fish assemblage structure using eDNA technology. A total of 50 eDNA samples were collected in the estuary in 2018. The results showed that 41 operational taxonomic units were identified from three seasons, with 18, 12, and 33 fish species associated specifically with spring, summer and autumn, respectively. The fish assemblage differed significantly among seasons. Canonical correspondence analysis showed that water temperature, salinity, and dissolved oxygen were the main environmental factors affecting structure of the seasonal assemblages. Results of the present study indicate that eDNA technology can be an effective tool not only for fisheries monitoring, but might also importantly assist marine resources conservation, sustainable exploitation of fisheries, the aquatic products processing industry, eco-friendly development, and socioeconomic stability.https://www.frontiersin.org/article/10.3389/fmars.2019.00515/fullYangtze Estuarymarine fishassemblage structureenvironmental DNAMiSeqseasonal assemblages |
| spellingShingle | Hui Zhang Hui Zhang Hui Zhang Hui Zhang Susumu Yoshizawa Wataru Iwasaki Wataru Iwasaki Weiwei Xian Weiwei Xian Weiwei Xian Seasonal Fish Assemblage Structure Using Environmental DNA in the Yangtze Estuary and Its Adjacent Waters Frontiers in Marine Science Yangtze Estuary marine fish assemblage structure environmental DNA MiSeq seasonal assemblages |
| title | Seasonal Fish Assemblage Structure Using Environmental DNA in the Yangtze Estuary and Its Adjacent Waters |
| title_full | Seasonal Fish Assemblage Structure Using Environmental DNA in the Yangtze Estuary and Its Adjacent Waters |
| title_fullStr | Seasonal Fish Assemblage Structure Using Environmental DNA in the Yangtze Estuary and Its Adjacent Waters |
| title_full_unstemmed | Seasonal Fish Assemblage Structure Using Environmental DNA in the Yangtze Estuary and Its Adjacent Waters |
| title_short | Seasonal Fish Assemblage Structure Using Environmental DNA in the Yangtze Estuary and Its Adjacent Waters |
| title_sort | seasonal fish assemblage structure using environmental dna in the yangtze estuary and its adjacent waters |
| topic | Yangtze Estuary marine fish assemblage structure environmental DNA MiSeq seasonal assemblages |
| url | https://www.frontiersin.org/article/10.3389/fmars.2019.00515/full |
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