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However, the role of viruses in continental shelf seas, which are usually areas of intense economic development, remain poorly characterized. Here, 62 seawater viromes from the eastern continental shelf seas of China (ECSSC), collected between 2017 and 2022, are systematically analyzed. A total of 310,628 viral operational taxonomic units (vOTUs) are identified, providing the most comprehensive overview of DNA viral communities in the ECSSC. Among them, 136,652 (42.3%) vOTUs could be classified into 89 families, dominated by Kyanoviridae, Autographiviridae and Zobellviridae. Only 31,994 (10.3%) of the vOTUs have predicted putative hosts, of which 91.4% are associated with specific hosts, including 31 bacterial and 10 archaeal phyla. The uniqueness and novelty of viruses from the ECSSC are identified and found to be much greater than those from GOV 2.0 and other environmental viromes. Viral communities undergo significant seasonal changes in different seasons and regions of the ECSSC. Here, 20,146 auxiliary metabolic genes are identified, of which carbohydrate, sulfur, and photosynthetic pathways are significantly enriched in the ECSSC compared to other marine ecosystems. This study establishes a foundational baseline for seawater viruses in the ECSSC, highlighting viral diversity and its potential impact on the biogeochemistry of continental shelf sea ecosystems.  \n1. Introduction  \nContinental shelf seas represent some of the most productive marine ecosystems and play crucial roles in global climate change. They serve as essential ecological ecotones between terrestrial environments and the open ocean. [1] These highly productive regions face intense anthropogenic threats—including coastal urbanization, industrialization, agriculture, and pollution, which drive excessive nutrient loading, organic matter accumulation and cause chemical and biological contamination. These impacts together threaten their ecological sustainability.[2] The current flow of total nitrogen into rivers from human waste and agricultural runoff is likely to double. [3] Continental shelf eutrophication, caused by nitrogen and phosphorus enrichment, promotes phytoplankton blooms, including harmful algal species, with cascading impacts on marine ecosystems.  \nViruses are the most abundant and genetically diverse biological entities in the  \nX. Guo, Y. Liang, C. Gao, H. Yu, M. Wang, H. Shao, Y. Yang, A. McMinn,  \nM. Wang  \nMoE Laboratory of Evolution and Marine Biodiversity College of Marine Life Sciences  \nInstitute of Evolution and Marine Biodiversity  \nFrontiers Science Center for Deep Ocean Multispheres and Earth System Center for Ocean Carbon Neutrality  \nOcean University of China Qingdao 266003, China  \nE-mail: [liangyantao@ouc.edu.cn](liangyantao@ouc.edu.cn); [gaochen@ouc.edu.cn](gaochen@ouc.edu.cn);  \n[mingwang@ouc.edu.cn](mingwang@ouc.edu.cn)  \nX. Guo, C. Gao, Y. Yang, M. Wang Haide College  \nOcean University of China Qingdao 266100, China  \nThe ORCID identification number(s) for the author(s) of this article can be found under [https://doi.org/10.1002/advs.202511707](https://doi.org/10.1002/advs.202511707)  \n[Correction added on 21 November 2025, after first online publication: theaffiliation of last author is updated.]  \n© 2025 The Author(s). Advanced Science published by Wiley-VCH GmbH. This is an open access article under the terms of the Creative Commons Attribution License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited.  \nX. Guo  \nCollege of Marine Resources and Environment Hebei Normal University of Science and Technology Qinhuangdao 066004, ","cbCaihxDl5QZui7a","https://ap.wps.com/l/cbCaihxDl5QZui7a","pdf",7219408,15,"English","# Introduction\n# Study overview and data analysis\n## Viral diversity in ECSSC viromes\n## Host prediction and viral taxonomy\n## Seasonal and regional patterns\n## Auxiliary metabolic genes and ecological implications","[{\"question\":\"What dataset and sampling period does the study use?\",\"answer\":\"The study analyzes 62 seawater viromes collected from the eastern continental shelf seas of China between 2017 and 2022.\"},{\"question\":\"How many viral operational taxonomic units are identified?\",\"answer\":\"A total of 310,628 viral operational taxonomic units (vOTUs) are identified, providing a comprehensive overview of DNA viral communities in the ECSSC.\"},{\"question\":\"What ecological potential is highlighted by auxiliary metabolic genes?\",\"answer\":\"The study identifies 20,146 auxiliary metabolic genes and finds that carbohydrate, sulfur, and photosynthetic pathways are significantly enriched in the ECSSC compared with other marine ecosystems.\"}]","Diversity and Ecological Potentials of Marine Viruses Inhabiting Continental Shelf Seas - Research Article | PDF",1790688567,38]