{"title":"Issue Information - Cover and Ed Board","authors":"","doi":"10.1111/fwb.14270","DOIUrl":"https://doi.org/10.1111/fwb.14270","url":null,"abstract":"","PeriodicalId":12365,"journal":{"name":"Freshwater Biology","volume":"70 4","pages":""},"PeriodicalIF":2.8,"publicationDate":"2025-03-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/fwb.14270","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143741457","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Morwenna McKenzie, Adrian L. Collins, Noah G. Davis, Roger Hodson, J. Iwan Jones, Christoph D. Matthaei, John F. Murphy, Annika Wagenhoff, Kate L. Mathers
{"title":"Stream Invertebrate Responses to Fine Sediment Depend on the Organic and Inorganic Components","authors":"Morwenna McKenzie, Adrian L. Collins, Noah G. Davis, Roger Hodson, J. Iwan Jones, Christoph D. Matthaei, John F. Murphy, Annika Wagenhoff, Kate L. Mathers","doi":"10.1111/fwb.70022","DOIUrl":"https://doi.org/10.1111/fwb.70022","url":null,"abstract":"<p>\u0000 \u0000 </p>","PeriodicalId":12365,"journal":{"name":"Freshwater Biology","volume":"70 3","pages":""},"PeriodicalIF":2.8,"publicationDate":"2025-03-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/fwb.70022","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143707671","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Krzysztof Podwysocki, Eliza Szczerkowska-Majchrzak, Łukasz Jermacz, Jarosław Kobak, Karolina Bącela-Spychalska, Tomasz Rewicz, Andrea Desiderato
{"title":"Predation or Omnivory—Two Different Feeding Patterns Displayed by Two Intraspecific Groups of the Invasive Ponto–Caspian Amphipod—Dikerogammarus villosus","authors":"Krzysztof Podwysocki, Eliza Szczerkowska-Majchrzak, Łukasz Jermacz, Jarosław Kobak, Karolina Bącela-Spychalska, Tomasz Rewicz, Andrea Desiderato","doi":"10.1111/fwb.70021","DOIUrl":"https://doi.org/10.1111/fwb.70021","url":null,"abstract":"<p>\u0000 \u0000 </p>","PeriodicalId":12365,"journal":{"name":"Freshwater Biology","volume":"70 3","pages":""},"PeriodicalIF":2.8,"publicationDate":"2025-03-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/fwb.70021","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143707670","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Advancing Marker-Gene-Based Methods for Prokaryote-Mediated Multifunctional Redundancy: Exploring Random and Non-Random Extinctions in a Catchment","authors":"Wan-Hsuan Cheng, Takeshi Miki, Motohiro Ido, Kinuyo Yoneya, Kazuaki Matsui, Taichi Yokokawa, Hiroki Yamanaka, Shin-ichi Nakano","doi":"10.1111/fwb.70020","DOIUrl":"https://doi.org/10.1111/fwb.70020","url":null,"abstract":"<div>\u0000 \u0000 <p>\u0000 \u0000 </p><ol>\u0000 \u0000 \u0000 <li>Multifunctional redundancy, which measures the extent of loss in multiple ecosystem functions with decreasing biodiversity, stands as a crucial index for evaluating ecosystem resilience to environmental changes. Previous studies have assessed functional redundancy by evaluating the overlap in multiple traits or functions among taxonomic units, but quantifying these experimentally for each taxonomic unit is challenging and resource-intensive, especially for microorganisms. In this study, we aimed to refine the estimation of multifunctional redundancy in prokaryotic communities using a marker-gene-based methodology.</li>\u0000 \u0000 \u0000 <li>We used the bioinformatic tool, PICRUSt2, to predict KEGG ortholog (KO) composition for each Amplicon Sequence Variant (ASV) of the 16S rRNA gene and assessed community-wide KO richness as a metric of genomic multifunctionality. Additionally, we introduced a refined regression on KO richness vs. ASV richness curves, providing a reliable estimate of the power-law exponent within computational time constraints, serving as the multifunctional redundancy index. To quantify variations between different species extinction scenarios, we incorporated various non-random extinction scenarios alongside a random one. Finally, to elucidate potential mechanisms contributing to the variations in multifunctional redundancy, we applied our refined methodology to the prokaryote community in Lake Biwa and four of its inlet rivers.</li>\u0000 \u0000 \u0000 <li>Our refined marker-gene-based methodology for quantifying multifunctional redundancy was effectively validated using experimentally quantified phenotypic multifunctionality. Our application to the Lake Biwa catchment revealed spatio-temporal variations in multifunctional redundancy.</li>\u0000 \u0000 \u0000 <li>Our analysis demonstrated lower redundancy in Lake Biwa compared to its inlet rivers, aiding in prioritising conservation targets and inferring distinct community assembly processes.</li>\u0000 \u0000 \u0000 <li>Future directions include a deeper exploration of KO composition information for detailed multifunctionality quantification and the refinement of extinction scenarios. This study demonstrates the promising integration of bioinformatic functional prediction and modelling biodiversity loss, offering a valuable tool for effective ecosystem management.</li>\u0000 </ol>\u0000 \u0000 </div>","PeriodicalId":12365,"journal":{"name":"Freshwater Biology","volume":"70 3","pages":""},"PeriodicalIF":2.8,"publicationDate":"2025-03-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143632862","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Sofia Nogueira, Manuel Curto, Diogo Dias, Maria Judite Alves, Susana Dias Amaral, Maria Filomena Magalhães, Carlos Carrapato, Ana Veríssimo, Filipe Ribeiro
{"title":"Environmental DNA Template Variation: Its Relevance for Species Detection and Conservation","authors":"Sofia Nogueira, Manuel Curto, Diogo Dias, Maria Judite Alves, Susana Dias Amaral, Maria Filomena Magalhães, Carlos Carrapato, Ana Veríssimo, Filipe Ribeiro","doi":"10.1111/fwb.70019","DOIUrl":"https://doi.org/10.1111/fwb.70019","url":null,"abstract":"<p>\u0000 \u0000 </p>","PeriodicalId":12365,"journal":{"name":"Freshwater Biology","volume":"70 3","pages":""},"PeriodicalIF":2.8,"publicationDate":"2025-03-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/fwb.70019","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143622480","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Daniel Valencia-Rodríguez, Fabricio Villalobos, Pablo A. Tedesco, Norman Mercado-Silva, Miguel Rubio-Godoy, Octavio Rojas-Soto
{"title":"Comparing Methods for Estimating Geographic Ranges in Freshwater Fishes: Several Mirrors of the Same Reality","authors":"Daniel Valencia-Rodríguez, Fabricio Villalobos, Pablo A. Tedesco, Norman Mercado-Silva, Miguel Rubio-Godoy, Octavio Rojas-Soto","doi":"10.1111/fwb.70014","DOIUrl":"https://doi.org/10.1111/fwb.70014","url":null,"abstract":"<div>\u0000 \u0000 <p>\u0000 \u0000 </p><ol>\u0000 \u0000 \u0000 <li>Describing the geographic range of aquatic species is crucial for biodiversity conservation and management. This study comprehensively assesses commonly used methods for constructing geographic ranges and estimating their sizes in freshwater environments, focusing on the Curimatidae family of tropical freshwater fishes distributed in Central and South America. Our main objective was to evaluate different range estimation methods, including convex hull polygons, alpha-shape polygons with a fixed alpha-value, dynamic alpha-shape polygons, expert maps and species distribution models (SDMs).</li>\u0000 \u0000 \u0000 <li>We used georeferenced data from various sources to delineate species' ranges within their hydrographic basins of occurrence. Geographic ranges for each species were reconstructed using the five methods. For the four polygon methods (i.e., excluding SDMs), two ranges were constructed: (i) polygons considering the whole terrestrial surface (unrestricted) and (ii) polygons considering only freshwater bodies (restricted). Specific environmental variables of freshwater systems were employed for the SDMs. Then, we assessed the differences in range sizes among methods and within each method (excluding SDMs) considering unrestricted and restricted polygons.</li>\u0000 \u0000 \u0000 <li>Our results revealed significant variations in range size estimates among the methods. Specifically, the convex hull method produced larger range sizes than the other methods. Additionally, our comparison between range size estimates using unrestricted and water body-restricted polygons revealed a consistent trend: unrestricted polygons estimated ranges that were eight times larger than those restricted to water bodies. Moreover, restricting polygons to water bodies resulted in ranges closely matching those estimated by SDMs, indicating the effectiveness of this adjustment procedure.</li>\u0000 \u0000 \u0000 <li>We highlight the notable variability in range size estimates among different methods, underscoring the need to carefully select the one appropriate for given research goals. For example, expert maps could be helpful for quick assessments of species' distribution and diversity when these are readily available. Convex hulls are suitable for quickly identifying potential conservation areas and assessing the overall species range in biodiversity monitoring. Dynamic alpha is appropriate for species with fragmented distributions, as they can capture discontinuities in range delimitation. Static alpha provides a balanced method for range size estimation when ecological information is limited, offering a practical solution for ecological and conservation assessments. SDMs are ideal for detecting species-environment relationships and identifying unexplored areas where a species might occur. Additionally, adjusti","PeriodicalId":12365,"journal":{"name":"Freshwater Biology","volume":"70 3","pages":""},"PeriodicalIF":2.8,"publicationDate":"2025-03-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143581779","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Zijian Wang, Jiaying Zhou, Ying He, Yangsirui Zhang, Peizhong Liu, Yifei Jia, Cai Lu, Guangchun Lei
{"title":"Spatially Diverse Water Levels Enhance Habitat Heterogeneity for Wintering Waterbirds","authors":"Zijian Wang, Jiaying Zhou, Ying He, Yangsirui Zhang, Peizhong Liu, Yifei Jia, Cai Lu, Guangchun Lei","doi":"10.1111/fwb.70016","DOIUrl":"https://doi.org/10.1111/fwb.70016","url":null,"abstract":"<div>\u0000 \u0000 <p>1. Rising global temperatures and the increasing frequency of climate extremes pose significant challenges to waterbird conservation. These effects might be mitigated by managing habitat heterogeneity through diverse water levels in waterbird habitats. East Dongting Lake (EDL), a critical wintering site within the East Asian–Australasian Flyway, has experienced a significant drop in winter water levels due to extreme drought and operation of the Three Gorges Dam. This study aimed to determine optimal water levels for supporting waterbird populations under these changing conditions.</p>\u0000 <p>2. We examined winter waterbird populations at EDL from 2004 to 2021. Species were categorised into five foraging guilds based on established criteria. Environmental variables comprised daily water levels from the Chenglingji hydrological station, meteorological data from ERA5-Land, and the 6-month Standardised Precipitation Evapotranspiration Index (SPEI) for drought severity assessment. We used a generalised additive model (GAM) with a negative binomial distribution to analyse the relationships between waterbird abundance and these factors, applying GAIC-based stepwise selection and varying-coefficient functions to account for guild-specific responses.</p>\u0000 <p>3. In controlled areas of EDL, higher maximum water levels (MaxWL) during the wet season were positively correlated with waterbird abundance, while controlled areas also maintained high waterbird numbers during extreme drought years, providing crucial habitat refuges. In uncontrolled areas, MaxWL and SPEI positively influenced waterbird abundance, while minimum water levels (MinWL) and biological accumulated temperature (BioT) were negatively associated.</p>\u0000 <p>4. In lakes where water levels can be regulated, regulation can be used to maintain habitat heterogeneity and food availability for wintering waterbirds. By adjusting local water management strategies within lake ecosystems, wetland managers can use these findings to support waterbird conservation efforts.</p>\u0000 </div>","PeriodicalId":12365,"journal":{"name":"Freshwater Biology","volume":"70 3","pages":""},"PeriodicalIF":2.8,"publicationDate":"2025-03-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143571400","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Ellinor Jakobsson, Silke Langenheder, Peter Eklöv, Gesa A. Weyhenmeyer
{"title":"Effects of Changing Snow and Ice Cover Conditions on Phytoplankton Chlorophyll-a and Community Composition in a Mesotrophic Lake","authors":"Ellinor Jakobsson, Silke Langenheder, Peter Eklöv, Gesa A. Weyhenmeyer","doi":"10.1111/fwb.70012","DOIUrl":"https://doi.org/10.1111/fwb.70012","url":null,"abstract":"<p>\u0000 \u0000 </p>","PeriodicalId":12365,"journal":{"name":"Freshwater Biology","volume":"70 3","pages":""},"PeriodicalIF":2.8,"publicationDate":"2025-03-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/fwb.70012","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143564823","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Changqun Duan, Ruobing Wang, Wenxiang Fang, Ya Li, Dan Liu, Ao Shen, M. D. K. Lakmali Gunathilaka, Ying Pan
{"title":"Norfloxacin Pollution Reshapes Interspecific Relationships in Zooplankton: Impacts of Reduced Phytoplankton Defence and Altered Zooplankton Motility Across Individual, Population and Community Scales","authors":"Changqun Duan, Ruobing Wang, Wenxiang Fang, Ya Li, Dan Liu, Ao Shen, M. D. K. Lakmali Gunathilaka, Ying Pan","doi":"10.1111/fwb.70018","DOIUrl":"https://doi.org/10.1111/fwb.70018","url":null,"abstract":"<div>\u0000 \u0000 <p>\u0000 \u0000 </p><ol>\u0000 \u0000 \u0000 <li>Recent studies indicate that antibiotics can inhibit the formation of phytoplankton colonies. This may affect zooplankton of varying sizes differently, potentially altering interspecific competition.</li>\u0000 \u0000 \u0000 <li>To investigate these effects, we established resource (predator-free) and apparent competition (with a larval damselfly as predator) systems by co-culturing <i>Daphnia magna</i> and <i>Moina affinis</i> with the algae <i>Scenedesmus quadricauda</i> as food. We examined the effects of norfloxacin (NOR, 0, 31.25, 500 and 8000 μg L<sup>−1</sup>) on the colony formation of <i>S. quadricauda</i> and on both individual- and population-level traits of zooplankton, along with interspecific competitive dynamics.</li>\u0000 \u0000 \u0000 <li>NOR impaired the ability of <i>S. quadricauda</i> to form large colonies, increasing grazing rates and boosting population expansion of both grazer species, particularly enhancing the competitive advantage of the smaller species, <i>M. affinis</i>, in the resource competition system. However, NOR caused oxidative damage and reduced mobility, which impacted <i>M. affinis</i> more severely, increasing its predation risk by damselfly larvae and reducing its dominance in the apparent competition system.</li>\u0000 \u0000 \u0000 <li>Our findings indicate that zooplankton interspecies competition is highly sensitive to antibiotic contamination. Moreover, the combined effects of differences in individual body size and sensitivity determine the potential hazards antibiotics pose to zooplankton communities, highlighting the need for concern.</li>\u0000 </ol>\u0000 \u0000 </div>","PeriodicalId":12365,"journal":{"name":"Freshwater Biology","volume":"70 3","pages":""},"PeriodicalIF":2.8,"publicationDate":"2025-03-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143554512","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}