Seasonal Differences in Fish Community Structure in the Upper Yangtze River Based on eDNA Metabarcoding: A Multi-dimensional Analysis

Seasonal Differences in Fish Community Structure in the Upper Yangtze River Based on eDNA Metabarcoding: A Multi-dimensional Analysis | Authorea try { document.documentElement.classList.add('js'); } catch (e) { } var _gaq = _gaq || []; _gaq.push(['_setAccount', 'G-8VDV14Y67G']); _gaq.push(['_trackPageview']); (function() { var ga = document.createElement('script'); ga.type = 'text/javascript'; ga.async = true; ga.src = ('https:' == document.location.protocol ? 'https://ssl' : 'http://www') + '.google-analytics.com/ga.js'; var s = document.getElementsByTagName('script')[0]; s.parentNode.insertBefore(ga, s); })(); Skip to main content Preprints Collections Wiley Open Research IET Open Research Ecological Society of Japan All Collections About About Authorea FAQs Contact Us Quick Search anywhere Search for preprint articles, keywords, etc. Search Search ADVANCED SEARCH SCROLL Ecology and Evolution This is a preprint and has not been peer reviewed. Data may be preliminary. 6 February 2025 V1 Latest version Share on Seasonal Differences in Fish Community Structure in the Upper Yangtze River Based on eDNA Metabarcoding: A Multi-dimensional Analysis Authors : Yixiao Li 0009-0001-4246-6357 , Lei Zhou , Renhui Luo , Zhiling Dong , Hongsen Lv , Jingning Ling , Weizhi Yao , and Wenping He [email protected] Authors Info & Affiliations https://doi.org/10.22541/au.173886126.69495218/v1 Published Ecology and Evolution Version of record Peer review timeline 330 views 195 downloads Contents Abstract Supplementary Material Information & Authors Metrics & Citations View Options References Figures Tables Media Share Abstract This study used environmental DNA(eDNA) metabarcoding to monitor fish communities at 14 sites along the upper Yangtze River across four seasons, aiming to understand seasonal variations in community structure. This study reflects on the current status of fish community structure in the region by leveraging an analytical discussion on the composition of fish species and functional groups, the application of 16 multidimensional diversity indices, and the relationships between fish communities and environmental variables. A total of 120 fish species were detected. The communities predominantly consisted of species that produce sticky eggs, are sedentary, and have omnivorous diets. However, the relative abundance of species producing drifting eggs, migratory, and carnivore fish groups was higher in autumn and winter compared to spring and summer. Except for the functional evenness index(FEve), all other functional diversity indices, as well as α diversity, taxonomic diversity, and phylogenetic diversity indices, were higher in spring and summer compared to autumn and winter. This suggests that fish diversity is greater in spring and summer; however, ecological niche overlap is more pronounced during these seasons. Multiple diversity indices demonstrated a high degree of correlation among them. This study provides practical experience for fish monitoring based on eDNA metabarcoding technology. Supplementary Material File (figure.docx) Download 3.13 MB File (main document.docx) Download 154.93 KB File (table.docx) Download 38.93 KB Information & Authors Information Version history V1 Version 1 06 February 2025 Peer review timeline Published Ecology and Evolution Version of Record 14 Oct 2025 Published Copyright This work is licensed under a Non Exclusive No Reuse License. Collection Ecology and Evolution Keywords description ecosystem ecology freshwater vertebrate Authors Affiliations Yixiao Li 0009-0001-4246-6357 Southwest University View all articles by this author Lei Zhou Southwest University View all articles by this author Renhui Luo Southwest University View all articles by this author Zhiling Dong Ocean University of China View all articles by this author Hongsen Lv Southwest University View all articles by this author Jingning Ling Southwest University View all articles by this author Weizhi Yao Southwest University View all articles by this author Wenping He [email protected] Southwest University View all articles by this author Metrics & Citations Metrics Article Usage 330 views 195 downloads .FvxKWukQNSOunydq8rnd { width: 100px; } Citations Download citation Yixiao Li, Lei Zhou, Renhui Luo, et al. Seasonal Differences in Fish Community Structure in the Upper Yangtze River Based on eDNA Metabarcoding: A Multi-dimensional Analysis. Authorea . 06 February 2025. DOI: https://doi.org/10.22541/au.173886126.69495218/v1 If you have the appropriate software installed, you can download article citation data to the citation manager of your choice. Simply select your manager software from the list below and click Download. For more information or tips please see 'Downloading to a citation manager' in the Help menu . Format Please select one from the list RIS (ProCite, Reference Manager) EndNote BibTex Medlars RefWorks Direct import Tips for downloading citations document.getElementById('citMgrHelpLink').addEventListener('click', function() { popupHelp(this.href); return false; }); $(".js__slcInclude").on("change", function(e){ if ($(this).val() == 'refworks') $('#direct').prop("checked", false); $('#direct').prop("disabled", ($(this).val() == 'refworks')); }); View Options View options PDF View PDF Figures Tables Media Share Share Share article link Copy Link Copied! Copying failed. 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