Application of environmental DNA technology in marine ranching-case study of Bailong Pearl Bay Demonstration area in Beibu Gulf

Environmental DNA (eDNA) technology has emerged as a widely used method in resource monitoring. The purpose of this study was to assess the effectiveness of the eDNA approach in determining fish composition in the marine ranching of the Bailong Pearl Bay National Marine Ranching Demonstration Zone....

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Main Authors: Hui Jia, Dongping Ji, Libin Zhang, Tao Zhang, Weiwei Xian, Hui Zhang
Format: Article
Language:English
Published: Elsevier 2023-10-01
Series:Ecological Indicators
Subjects:
Online Access:http://www.sciencedirect.com/science/article/pii/S1470160X23010488
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author Hui Jia
Dongping Ji
Libin Zhang
Tao Zhang
Weiwei Xian
Hui Zhang
author_facet Hui Jia
Dongping Ji
Libin Zhang
Tao Zhang
Weiwei Xian
Hui Zhang
author_sort Hui Jia
collection DOAJ
description Environmental DNA (eDNA) technology has emerged as a widely used method in resource monitoring. The purpose of this study was to assess the effectiveness of the eDNA approach in determining fish composition in the marine ranching of the Bailong Pearl Bay National Marine Ranching Demonstration Zone. Samples were collected from 12 sites in four different zones within Bailong Pearl Bay of the Beibu Gulf, and species diversity was analyzed through 12S rRNA gene amplicon sequencing. The results showed the collection of a total of 75 fish species, with Setipinna taty, Hypoatherina valenciennei, Trachurus japonicus, and Scatophagus argus identified as the dominant species based on the eDNA survey. Alpha and beta diversity index analyses revealed significant differences in composition and abundance of the different fish groups in Bailong Pearly Bay in July 2021. Furthermore, it was found that the artificial reef area and the natural sea area outside Bailong Bay harbored a more diverse fish population, which can be attributed to the positive effects of marine ranching construction. Mantel test correlation analysis demonstrated that phycoerythrin, salinity, and dissolved oxygen were the primary environmental factors influencing the structure of fish assemblages in different zones. The results indicated that eDNA can detect a greater number of species and uncover taxa that are rarely observed visually, thereby providing a comprehensive picture of fish diversity in the sample. This survey offers important technical support for the Bailong Pearl Bay National Marine Ranching Demonstration Zone, and the research findings provide valuable data for the development of marine ranching.
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spelling doaj.art-6c5467419f764229bdbec95971e71f592023-09-16T05:30:21ZengElsevierEcological Indicators1470-160X2023-10-01154110906Application of environmental DNA technology in marine ranching-case study of Bailong Pearl Bay Demonstration area in Beibu GulfHui Jia0Dongping Ji1Libin Zhang2Tao Zhang3Weiwei Xian4Hui Zhang5School of Marine Sciences, Ningbo University, Ningbo 315823, China; CAS Key Laboratory of Marine Ecology and Environmental Sciences, Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, ChinaOceanic Administration of Guangxi Zhuang Autonomous Region, Nanning 530022, ChinaCAS Key Laboratory of Marine Ecology and Environmental Sciences, Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, China; University of Chinese Academy of Sciences, Beijing 100049, ChinaCAS Key Laboratory of Marine Ecology and Environmental Sciences, Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, China; University of Chinese Academy of Sciences, Beijing 100049, ChinaCAS Key Laboratory of Marine Ecology and Environmental Sciences, Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, China; University of Chinese Academy of Sciences, Beijing 100049, ChinaCAS Key Laboratory of Marine Ecology and Environmental Sciences, Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, China; University of Chinese Academy of Sciences, Beijing 100049, China; Corresponding author at: CAS Key Laboratory of Marine Ecology and Environmental Sciences, Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, China.Environmental DNA (eDNA) technology has emerged as a widely used method in resource monitoring. The purpose of this study was to assess the effectiveness of the eDNA approach in determining fish composition in the marine ranching of the Bailong Pearl Bay National Marine Ranching Demonstration Zone. Samples were collected from 12 sites in four different zones within Bailong Pearl Bay of the Beibu Gulf, and species diversity was analyzed through 12S rRNA gene amplicon sequencing. The results showed the collection of a total of 75 fish species, with Setipinna taty, Hypoatherina valenciennei, Trachurus japonicus, and Scatophagus argus identified as the dominant species based on the eDNA survey. Alpha and beta diversity index analyses revealed significant differences in composition and abundance of the different fish groups in Bailong Pearly Bay in July 2021. Furthermore, it was found that the artificial reef area and the natural sea area outside Bailong Bay harbored a more diverse fish population, which can be attributed to the positive effects of marine ranching construction. Mantel test correlation analysis demonstrated that phycoerythrin, salinity, and dissolved oxygen were the primary environmental factors influencing the structure of fish assemblages in different zones. The results indicated that eDNA can detect a greater number of species and uncover taxa that are rarely observed visually, thereby providing a comprehensive picture of fish diversity in the sample. This survey offers important technical support for the Bailong Pearl Bay National Marine Ranching Demonstration Zone, and the research findings provide valuable data for the development of marine ranching.http://www.sciencedirect.com/science/article/pii/S1470160X23010488Marine ranchingEnvironmental DNAEnvironmental factorsFish diversityMonitoringBailong Pearly Bay
spellingShingle Hui Jia
Dongping Ji
Libin Zhang
Tao Zhang
Weiwei Xian
Hui Zhang
Application of environmental DNA technology in marine ranching-case study of Bailong Pearl Bay Demonstration area in Beibu Gulf
Ecological Indicators
Marine ranching
Environmental DNA
Environmental factors
Fish diversity
Monitoring
Bailong Pearly Bay
title Application of environmental DNA technology in marine ranching-case study of Bailong Pearl Bay Demonstration area in Beibu Gulf
title_full Application of environmental DNA technology in marine ranching-case study of Bailong Pearl Bay Demonstration area in Beibu Gulf
title_fullStr Application of environmental DNA technology in marine ranching-case study of Bailong Pearl Bay Demonstration area in Beibu Gulf
title_full_unstemmed Application of environmental DNA technology in marine ranching-case study of Bailong Pearl Bay Demonstration area in Beibu Gulf
title_short Application of environmental DNA technology in marine ranching-case study of Bailong Pearl Bay Demonstration area in Beibu Gulf
title_sort application of environmental dna technology in marine ranching case study of bailong pearl bay demonstration area in beibu gulf
topic Marine ranching
Environmental DNA
Environmental factors
Fish diversity
Monitoring
Bailong Pearly Bay
url http://www.sciencedirect.com/science/article/pii/S1470160X23010488
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