Freshwater Biology最新文献

{"title":"Assessing the Effects of Fresh, Air-Drying and Freezing Preservation Methods on Enzymatic Activities From Fluvial Ecosystems","authors":"Rebeca Arias-Real,&nbsp;Manuel Delgado-Baquerizo,&nbsp;Simone Guareschi,&nbsp;Cayetano Gutiérrez-Cánovas","doi":"10.1111/fwb.70095","DOIUrl":"https://doi.org/10.1111/fwb.70095","url":null,"abstract":"<p>\u0000 \u0000 </p>","PeriodicalId":12365,"journal":{"name":"Freshwater Biology","volume":"70 9","pages":""},"PeriodicalIF":2.7,"publicationDate":"2025-09-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/fwb.70095","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145101652","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":"Plankton as the Cornerstone of Arid Freshwater Ecosystem Stability: From Biodiversity to Stability","authors":"Zijie Yang,&nbsp;Baozhu Pan,&nbsp;Zhiyuan Feng,&nbsp;Wenpeng Ma,&nbsp;Gang Li,&nbsp;Siquan Wang","doi":"10.1111/fwb.70097","DOIUrl":"https://doi.org/10.1111/fwb.70097","url":null,"abstract":"<div>\u0000 \u0000 <p>\u0000 \u0000 </p><ol>\u0000 \u0000 \u0000 <li>Plankton (including phytoplankton and zooplankton) play a crucial role in maintaining aquatic ecosystem stability, yet their influence on the stability of fragile freshwater ecosystems in arid regions remains underexplored.</li>\u0000 \u0000 \u0000 <li>This study systematically investigated the biodiversity dynamics, co-occurrence patterns and community stability of plankton in common freshwater bodies (rivers and reservoirs) within the Yanhe River Basin, a representative arid region in northern China. The response thresholds of plankton communities to key influencing factors were determined.</li>\u0000 \u0000 \u0000 <li>The results indicated greater diversity and similarity among riverine plankton communities in the main stream and tributaries, despite lower biomass compared to those in reservoirs. Plankton network robustness and community stability were also higher in rivers than in reservoirs, mainly due to distinct roles of phytoplankton and zooplankton diversity across different types of water bodies. Water nutrients (e.g., nitrogen sources), pH, turbidity and the ratio of zooplankton to phytoplankton biomass (Z/P ratio) emerged as key factors shaping plankton community structure and stability. The threshold ranges of total nitrogen, pH, turbidity and Z/P ratio for plankton community responses were 0.053 to 1.126 mg/L, 8.7 to 9.0, 28.53 to 83.23 NTU, and 0.64% to 16.0%, respectively.</li>\u0000 \u0000 \u0000 <li>This study provides a glimpse into how plankton diversity and community interactions drive freshwater ecosystem stability, and proposes operational guidelines for water resource management and ecological conservation under arid conditions.</li>\u0000 </ol>\u0000 \u0000 </div>","PeriodicalId":12365,"journal":{"name":"Freshwater Biology","volume":"70 9","pages":""},"PeriodicalIF":2.7,"publicationDate":"2025-09-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145101653","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}

{"title":"Testing Environmental Filters Across Basins: Community Assembly of Freshwater Fishes in a Subtropical Montane Riverscape","authors":"Soumyadip Panja,&nbsp;Rubina Mondal,&nbsp;Sumit Homechaudhuri,&nbsp;Anuradha Bhat","doi":"10.1111/fwb.70100","DOIUrl":"https://doi.org/10.1111/fwb.70100","url":null,"abstract":"<div>\u0000 \u0000 <p>\u0000 \u0000 </p><ol>\u0000 \u0000 \u0000 <li>Freshwater fish communities differ widely across spatial scales due to environmental filtering and limited dispersal. However, the relative importance of these mechanisms is poorly understood, especially along subtropical elevational gradients. Species traits may further help to predict species niches and co-occurrences and allow for generalisations across multiple ecosystems. We aimed to model the occurrence of fish species as a function of environmental covariates and distance, testing for the effects of traits and phylogeny on species niches and co-occurrence patterns. We also aimed to test the consistency in these relationships between the river basins.</li>\u0000 \u0000 \u0000 <li>We fitted two joint species distribution models (JSDM) to a dataset of fish sampled over multiple years, across the Teesta–Jaldhaka basins of the Eastern Himalayas.</li>\u0000 \u0000 \u0000 <li>The effects of environmental filtering were stronger than those of distance. Elevation, total dissolved solutes, dissolved oxygen and stream width explained much variation in species occurrences, but their relative importance differed among basins. Traits explained relatively less variation in species niches and co-occurrences, and their effects differed among basins. However, the residual phylogenetic signal in niches indicates that unmeasured traits likely play a stronger role.</li>\u0000 \u0000 \u0000 <li>Environmental filtering primarily structures lotic fish communities along subtropical elevational gradients in the two adjacent Eastern Himalayan River basins. However, the relative influence of covariates and the nature of trait–niche relationships differs.</li>\u0000 \u0000 \u0000 <li>This variability makes broad generalisations difficult across freshwater basins while providing an opportunity to test and explore the applicability of ecological filters in other riverine systems.</li>\u0000 </ol>\u0000 \u0000 </div>","PeriodicalId":12365,"journal":{"name":"Freshwater Biology","volume":"70 9","pages":""},"PeriodicalIF":2.7,"publicationDate":"2025-09-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145102062","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}

{"title":"Temperature Variability and Salt Pollution Interact to Alter Subsequent Multi-Parasite Susceptibility in Larval Amphibians","authors":"Paradyse E. Blackwood,&nbsp;Emily L. Martin,&nbsp;Catherine L. Searle","doi":"10.1111/fwb.70080","DOIUrl":"https://doi.org/10.1111/fwb.70080","url":null,"abstract":"<p>\u0000 \u0000 </p>","PeriodicalId":12365,"journal":{"name":"Freshwater Biology","volume":"70 9","pages":""},"PeriodicalIF":2.7,"publicationDate":"2025-09-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/fwb.70080","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144930035","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":"Issue Information - Cover and Ed Board","authors":"","doi":"10.1111/fwb.14280","DOIUrl":"https://doi.org/10.1111/fwb.14280","url":null,"abstract":"","PeriodicalId":12365,"journal":{"name":"Freshwater Biology","volume":"70 9","pages":""},"PeriodicalIF":2.7,"publicationDate":"2025-08-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/fwb.14280","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144915188","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":"Population Ecology of Freshwater Mussels Hyridella narracanensis and H. drapeta in South-Eastern Australia","authors":"Sarah Treby,&nbsp;Tarmo A. Raadik,&nbsp;Caitlyn L. Parsons,&nbsp;Nicholas P. Murphy","doi":"10.1111/fwb.70090","DOIUrl":"https://doi.org/10.1111/fwb.70090","url":null,"abstract":"<p>\u0000 \u0000 </p>","PeriodicalId":12365,"journal":{"name":"Freshwater Biology","volume":"70 8","pages":""},"PeriodicalIF":2.7,"publicationDate":"2025-08-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/fwb.70090","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144905271","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":"Correction: Key Abiotic and Biotic Variables Influencing Lake Plankton Communities Across Canada","authors":"","doi":"10.1111/fwb.70091","DOIUrl":"https://doi.org/10.1111/fwb.70091","url":null,"abstract":"<p>We inadvertently reversed parts B and C of Figure 3. The caption remains the same, but herein is presented the corrected version of Figure 3.</p>","PeriodicalId":12365,"journal":{"name":"Freshwater Biology","volume":"70 8","pages":""},"PeriodicalIF":2.7,"publicationDate":"2025-08-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/fwb.70091","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144905312","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":"Combined Effects of Fish, Light and Allochthonous Dissolved Organic Carbon on Interactions Between Green and Brown Food Webs: An Aquatic Mesocosm Experiment","authors":"Pierre Quévreux,&nbsp;Kejun Zou,&nbsp;Sébastien Barot,&nbsp;Élisa Thébault,&nbsp;Emma Rochelle-Newall,&nbsp;Ludwig Jardillier,&nbsp;Éric Edeline,&nbsp;Simon Agostini,&nbsp;Jacques Mériguet,&nbsp;Sarah Fiorini,&nbsp;Gérard Lacroix","doi":"10.1111/fwb.70081","DOIUrl":"https://doi.org/10.1111/fwb.70081","url":null,"abstract":"<div>\u0000 \u0000 <p>\u0000 \u0000 </p><ol>\u0000 \u0000 \u0000 <li>The classical concepts of top-down and bottom-up cascading effects in ecosystems are challenged by the interactions between green and brown food webs. The green food web relies on photosynthesis and the brown food web relies on the mineralisation of dead organic matter. Mutualistic interactions between these two food webs are crucial for ecosystem functioning because a major fraction of organic carbon is produced by the green food web, while mineral nutrients are mainly recycled through the brown one. However, green and brown food webs can compete for mineral nutrients if decomposers are nutrient limited. Thus, bottom-up or top-down effects on one food web can have major cascading effects on the other one.</li>\u0000 \u0000 \u0000 <li>In our freshwater mesocosm experiment, we tested cascading bottom-up effects targeting the green food web through sunlight filtering and the brown food web through organic carbon addition; cascading top-down effects mediated by fish presence.</li>\u0000 \u0000 \u0000 <li>Our main finding is a positive effect of fish on phytoplankton density in mesocosms where daylight was reduced. Fish also had a positive effect on the brown food web with increased abundances of heterotrophic prokaryotes and microbial eukaryotes. However, they had no significant effect on zooplankton biomass. We did not observe any cascading effect of light treatment on the brown food web and of organic carbon treatment on the green food web. Our organic carbon treatment had nearly no effect on the brown food web.</li>\u0000 \u0000 \u0000 <li>The most likely explanation for the observed fish × light interaction is a bottom-up effect mediated by nutrient cycling embodied by the increased sediment production and DOC accumulation in the presence of fish. The lack of effect of our organic carbon treatment may be due to the moderate quantity of added carbon and of the low bioavailability of some of the added molecules.</li>\u0000 \u0000 \u0000 <li>Our experiment suggests that fish can strongly stimulate phytoplankton through bottom-up effects due to nutrient cycling, and not only through the classic trophic cascade due to the top-down control on large herbivorous zooplankton.</li>\u0000 </ol>\u0000 \u0000 </div>","PeriodicalId":12365,"journal":{"name":"Freshwater Biology","volume":"70 8","pages":""},"PeriodicalIF":2.7,"publicationDate":"2025-08-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144905311","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}

{"title":"Seasonal Shifts in the Use of Green and Brown Food Resources by a Dominant Stream Grazer","authors":"Walter R. Hill,&nbsp;John G. Smith","doi":"10.1111/fwb.70092","DOIUrl":"https://doi.org/10.1111/fwb.70092","url":null,"abstract":"<p>\u0000 \u0000 </p>","PeriodicalId":12365,"journal":{"name":"Freshwater Biology","volume":"70 8","pages":""},"PeriodicalIF":2.7,"publicationDate":"2025-08-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/fwb.70092","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144888330","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":"Risk-Avoiding Strategies in Rotifer Diapause-Related Traits in Response to Environmental Unpredictability","authors":"Carlota Solano-Udina,&nbsp;Manuel Serra,&nbsp;María José Carmona,&nbsp;Eduardo M. García-Roger","doi":"10.1111/fwb.70093","DOIUrl":"https://doi.org/10.1111/fwb.70093","url":null,"abstract":"<p>\u0000 \u0000 </p>","PeriodicalId":12365,"journal":{"name":"Freshwater Biology","volume":"70 8","pages":""},"PeriodicalIF":2.7,"publicationDate":"2025-08-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/fwb.70093","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144888329","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}