Spatial mismatch and congruence in the taxonomic, functional, and phylogenetic diversities of fish assemblages in China’s water diversion lakes

The interplay of evolutionary, ecological, and anthropogenic processes is critical in shaping species distributions and biodiversity patterns. Recent studies highlight the importance of examining functional and phylogenetic traits to gain a more comprehensive understanding of these patterns. However, significant knowledge gaps remain regarding functional and phylogenetic diversity patterns among freshwater fish, particularly in the context of large-scale hydrological alterations such as the South-to-North Water Diversion Project (SNWDP). In this study, we investigated the spatial patterns of fish taxonomic, functional, and phylogenetic diversities and community assemblage, alongside their environmental drivers, within five impounded lakes of SNWDP. Our analysis sought to identify relationships between different aspects of diversity, assessing patterns of mismatch or congruence, and evaluating the efficacy of using one aspect as a proxy for another. Our results revealed that: 1) fish div..., Field surveys of the five impounded lakes were conducted in January and April 2017 to collect fish and environmental data. Within each lake, eight sampling sites were selected based on the morphological, hydrological, and geographical conditions of the lake, as well as the habitat heterogeneity provided by the fisheries management committee for each lake. Altogether, forty sites were sampled across the five impounded lakes.
At each sampling site, a pelagic multi-mesh gillnet, a benthic multi-mesh gillnet, and a ground trap net were deployed together. The multi-mesh gillnet, adapted from standard Swedish methods, featured 12 panels of varying mesh sizes from 5 to 55 mm (specifically, 5, 6.25, 8, 10, 12.5, 15.5, 19.5, 24, 30, 35, 43, and 55 mm). Each gillnet was designed to be 2 m in height and 30 m in length, with different mesh panels assembled in a random order, yet maintaining uniformity across all gillnets in terms of the sequence of mesh sizes. The trap net, with a mesh size of 5 mm..., , # Spatial mismatch and congruence in the taxonomic, functional, and phylogenetic diversities of fish assemblages in China's water diversion lakes

1. Author Information
A. Principal Investigator Contact Information
Name: Zhice Liang
Institution: Institute of Hydrobiology
Address: Wuhan, China
Email: [[e-mail]](mailto:[e-mail])

B. Associate or Co-investigator Contact Information
Name: Chuanbo Guo
Institution: Institute of Hydrobiology
Address: Wuhan, China
Email: [[e-mail]](mailto:[e-mail])
2. Date of data collection (single date, range, approximate date): January and April 2017
3. Geographic location of data collection: Five impounded lakes of China's South-to-North Water Diversion Project
4. Information about funding sources that supported the collection of the data: National Natural Science Foundation of China, Award: 32172980; the earmarked fund for China Agriculture Research System: CARS-45

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