Freshwater Biology最新文献

{"title":"Under Pressure: Macroinvertebrate Community Responses to Agriculture in Temporary Streams","authors":"Kieran J. Gething,&nbsp;Romain Sarremejane,&nbsp;Andy House,&nbsp;Judy England,&nbsp;Tim Sykes,&nbsp;Rachel Stubbington","doi":"10.1111/fwb.70049","DOIUrl":"https://doi.org/10.1111/fwb.70049","url":null,"abstract":"<p>\u0000 \u0000 </p>","PeriodicalId":12365,"journal":{"name":"Freshwater Biology","volume":"70 5","pages":""},"PeriodicalIF":2.8,"publicationDate":"2025-05-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/fwb.70049","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144140371","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":"Facilitation of Lake Eutrophication by Altered Feedback Loops Between Submerged Macrophyte Vegetation and Phosphorus Retention","authors":"Sabine Hilt,&nbsp;Klaus van de Weyer,&nbsp;Sebastian Meis,&nbsp;Jens Päzolt,&nbsp;Mark O. Gessner,&nbsp;Thomas Gonsiorczyk,&nbsp;Marta Maria Alirangues-Nuñez,&nbsp;Michael Hupfer","doi":"10.1111/fwb.70051","DOIUrl":"https://doi.org/10.1111/fwb.70051","url":null,"abstract":"<p>\u0000 \u0000 </p>","PeriodicalId":12365,"journal":{"name":"Freshwater Biology","volume":"70 5","pages":""},"PeriodicalIF":2.8,"publicationDate":"2025-05-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/fwb.70051","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144140370","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":"Benefits of Aquatic Vegetation for Fish in an Ecosystem Dominated by an Invasive Piscivore","authors":"Miles I. Peterson,&nbsp;Yoichi Kondo,&nbsp;Naoya Wada,&nbsp;Yoshiaki Tsuda,&nbsp;Satoshi Kitano","doi":"10.1111/fwb.70045","DOIUrl":"https://doi.org/10.1111/fwb.70045","url":null,"abstract":"<p>\u0000 \u0000 </p>","PeriodicalId":12365,"journal":{"name":"Freshwater Biology","volume":"70 5","pages":""},"PeriodicalIF":2.8,"publicationDate":"2025-05-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/fwb.70045","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144108957","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":"Analysis of Macrozoobenthic Species Associations in the Eastern European Plain Under Changing Climatic Zone Conditions","authors":"Larisa V. Golovatyuk,&nbsp;Dmitry G. Seleznev,&nbsp;Ekaterina M. Kurina","doi":"10.1111/fwb.70044","DOIUrl":"https://doi.org/10.1111/fwb.70044","url":null,"abstract":"<div>\u0000 \u0000 <p>\u0000 \u0000 </p><ol>\u0000 \u0000 \u0000 <li>The assessment of the geographical distribution of species under the influence of environmental factors at different scales is important in ecological studies. This study aimed to investigate macrozoobenthos species associations and determine the factors influencing their co-occurrence, based on data from various climatic zones of the Eastern European Plain.</li>\u0000 \u0000 \u0000 <li>We analysed a large dataset from 11 mid-sized and 81 small rivers in the Lower Volga Basin. Using a discrete binomial distribution, we identified pairs of associated species, grouped them and analysed their dependence on various abiotic factors.</li>\u0000 \u0000 \u0000 <li>Four clusters of macrozoobenthic species were identified, gradually replacing each other from the forest-steppe to the semi-desert climatic zone. From high to low latitudes, in these clusters the number of rheophilic and freshwater species decreased, while the number of limnophilic, euryhaline and halophilic species increased.</li>\u0000 \u0000 \u0000 <li>Species associations with habitat are determined by morphological and physiological adaptations to the complex of abiotic factors within local biotopes, trophic specialisation and facilitative interactions. The abiotic characteristics of the biotopes, in turn, were influenced by the following climatic and landscape factors: Average annual air temperature, precipitation volume influences salinity in the watercourses, and finally, the altitude and ruggedness of the terrain influenced water velocity. These factors constrained the spatial distribution of identified species assemblages to varying degrees.</li>\u0000 \u0000 \u0000 <li>The results obtained contribute significantly to our understanding of the geographical distribution of macrozoobenthic assemblages. The methodical approach employed in this study has the potential to facilitate the distribution analysis of other groups of living organisms across diverse spatial scales.</li>\u0000 </ol>\u0000 \u0000 </div>","PeriodicalId":12365,"journal":{"name":"Freshwater Biology","volume":"70 5","pages":""},"PeriodicalIF":2.8,"publicationDate":"2025-05-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144100623","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":"Species Richness and Abundance of Benthic Invertebrates Are Multiplied by Beaver (Castor sp.) Activities in Small Floodplains","authors":"Sara Schloemer,&nbsp;Willem Kaijser,&nbsp;Thomas Hörren,&nbsp;Felix von Schledorn,&nbsp;Armin Lorenz,&nbsp;Paul Mausbach,&nbsp;Katharina Hund,&nbsp;Daniel Hering","doi":"10.1111/fwb.70046","DOIUrl":"https://doi.org/10.1111/fwb.70046","url":null,"abstract":"<p>\u0000 \u0000 </p>","PeriodicalId":12365,"journal":{"name":"Freshwater Biology","volume":"70 5","pages":""},"PeriodicalIF":2.8,"publicationDate":"2025-05-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/fwb.70046","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144091762","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":"Stygobitic Candonidae (Crustacea, Ostracoda) Are Potential Environmental Indicators of Groundwater Quality in Tropical West Africa","authors":"Sourou Joseph Hotèkpo,&nbsp;Tadeusz Namiotko,&nbsp;Moïssou Lagnika,&nbsp;Moudachirou Ibikounlé,&nbsp;Patrick Martin,&nbsp;Isa Schön,&nbsp;Koen Martens","doi":"10.1111/fwb.70043","DOIUrl":"https://doi.org/10.1111/fwb.70043","url":null,"abstract":"<div>\u0000 \u0000 <p>\u0000 \u0000 </p><ol>\u0000 \u0000 \u0000 <li>Ostracods are important components of groundwater communities that are influenced by abiotic environmental conditions and biotic interactions. We aimed to identify the factors associated with ostracod assemblages inhabiting groundwaters accessed through dug wells in several regions of Benin in West Africa, exposed to chronic influences of anthropogenic disturbances such as nutrient enrichment from infiltration of sewage or fertilisers from the surface.</li>\u0000 \u0000 \u0000 <li>Ostracods were collected from 219 wells in seven catchment areas using two complementary methods: active sampling with a phreatobiological net and passive trapping with a baited trap. Associations with 31 statistical predictor variables (a range of abiotic descriptors of water, hydrology, protection, usage and the type of well) and ostracod occurrence was evaluated using distance-based linear models and redundancy analysis.</li>\u0000 \u0000 \u0000 <li>We identified 60 ostracod species representing two ecological groups: 36 species of stygobites of the family Candonidae, an endemic species flock of a vast evolutionary radiation, and 24 species of non-stygobites, mostly of the family Cyprididae. This is the first large groundwater ostracod species flock reported from the entire African continent.</li>\u0000 \u0000 \u0000 <li>A number of variables associated with the structure of ostracod assemblages were identified. Except for the descriptors of wells, these included well-known chemical and physical properties (electrical conductivity, pH, temperature or bicarbonate concentration), but also the concentration of NO₂⁻. Although NO₂⁻ has not yet been demonstrated to be important for ostracod assemblages, stygobites occurred significantly less frequently in higher concentrations of NO₂⁻ than most non-stygobites.</li>\u0000 \u0000 \u0000 <li>We determined that stygobitic (candonid) ostracod species and genera may be a good potential environmental indicator of groundwater quality especially nitrite pollution of groundwater in tropical West Africa.</li>\u0000 \u0000 \u0000 <li>In tropical West Africa, many human populations rely on groundwater for domestic use and agricultural irrigation, while these aquatic resources are also often affected by anthropogenic disturbances. The use of stygobitic ostracods as potential indicators of groundwater quality offers a valuable tool for environmental monitoring and protection in tropical regions in West Africa, and may be also globally.</li>\u0000 </ol>\u0000 \u0000 </div>","PeriodicalId":12365,"journal":{"name":"Freshwater Biology","volume":"70 5","pages":""},"PeriodicalIF":2.8,"publicationDate":"2025-05-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144085499","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":"Identifying River Corridors for the Implementation of the Network of Green Infrastructure in Spain","authors":"V. Hermoso,&nbsp;J. Salgado-Rojas,&nbsp;M. Lanzas,&nbsp;F. Morcillo,&nbsp;F. Casals,&nbsp;M. Oñorbe,&nbsp;R. Hidalgo,&nbsp;G. Magdaleno,&nbsp;J. R. Sánchez-González","doi":"10.1111/fwb.70048","DOIUrl":"https://doi.org/10.1111/fwb.70048","url":null,"abstract":"&lt;p&gt;1. Spatial–temporal connectivity plays a key role in freshwater ecosystems by maintaining processes such as the transfer of materials and energy, gene exchange, and migratory movements necessary for the maintenance of functional ecosystems. However, connectivity in these systems has undergone severe modifications over the last century, threatening the persistence of biodiversity and the ecosystem services they provide. The European Union (EU) acknowledges the value of freshwater ecosystems as important connectivity elements of the landscape and the need to recover their functionality, not only for freshwater biodiversity, in policy instruments such as the European Biodiversity Strategy for 2030 or the Green Infrastructure Strategy. Priority areas need to be designated and managed as corridors. However, given the widespread impacts to connectivity, balancing the functionality of corridors and socio-economic constraints will be key.&lt;/p&gt;&lt;p&gt;2. We demonstrate how to design a network of river corridors in Spain to connect populations of freshwater fish species, while minimising the impact of barriers that compromise the functionality of the corridor or make its restoration expensive. We integrated information on the spatial distribution of 40 fish species and more than 30.000 barriers along 80.000 km of rivers and streams to identify priority corridors that connect at least 50% of the populations for all species. We ran three different scenarios that depict alternative planning interests and constraints: (i) an unconstrained scenario, where all river reaches were equally available to be part of the corridor; (ii) a Natura 2000 scenario (N2K), where corridors connected protected areas; and (iii) a no dam allowed scenario (NDA), where we avoided selecting reaches with dams as part of the network of corridors. We measured four different indicators to compare scenarios: number of planning units selected, the number of dams included, the length of continuous units selected and the length of continuous units selected for each species individually.&lt;/p&gt;&lt;p&gt;3. We found that the optimal network of corridors always contained reaches with barriers. However, the network was more spatially continuous (22% and 26% more continuity) and was always less impacted by barriers (6.9 and 2.6 fewer barriers) under the unconstrained scenario than under the N2K and NDA scenarios. The network of corridors was free from dams only under the NDA scenario, although the average connectivity across all species was always lower than under the other two scenarios.&lt;/p&gt;&lt;p&gt;4. Our results demonstrate that the design and management of a coherent network of freshwater corridors in Spain will need to integrate reaches impacted by barriers. Securing the functionality of such a network by restoring the lost connectivity will pose a socio-economic challenge. Spatial planning can help address this challenge by identifying priority corridors that minimise restoration efforts.&lt;/p&gt;&lt;p&gt;5. The approac","PeriodicalId":12365,"journal":{"name":"Freshwater Biology","volume":"70 5","pages":""},"PeriodicalIF":2.8,"publicationDate":"2025-05-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/fwb.70048","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144085268","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":"Effects of Riparian Forest Thinning on Resident Salmonid Fishes in Coastal Northern California Catchments","authors":"David A. Roon,&nbsp;Jason B. Dunham,&nbsp;Joseph R. Benjamin,&nbsp;Bret C. Harvey,&nbsp;J. Ryan Bellmore","doi":"10.1111/fwb.70040","DOIUrl":"https://doi.org/10.1111/fwb.70040","url":null,"abstract":"<p>\u0000 \u0000 </p>","PeriodicalId":12365,"journal":{"name":"Freshwater Biology","volume":"70 5","pages":""},"PeriodicalIF":2.8,"publicationDate":"2025-05-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/fwb.70040","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144085500","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":"How Do Environmental and Spatial Factors Influence Beta Diversity and Composition of Abundant and Rare Bacterioplankton Communities in Lakes From the Patagonian Plateaus?","authors":"Sol Porcel,&nbsp;Carmen Alejandra Sabio y García,&nbsp;María Romina Schiaffino,&nbsp;Griselda Chaparro,&nbsp;María del Carmen Diéguez,&nbsp;Julio Lancelotti,&nbsp;Ignacio Roesler,&nbsp;Irina Izaguirre","doi":"10.1111/fwb.70047","DOIUrl":"https://doi.org/10.1111/fwb.70047","url":null,"abstract":"<div>\u0000 \u0000 <p>\u0000 \u0000 </p><ol>\u0000 \u0000 \u0000 <li>Lakes in the same geographic region often exhibit outstanding differences in environmental features, as is the case in the high-altitude lakes from the basaltic plateaus of Patagonia (Argentina).</li>\u0000 \u0000 \u0000 <li>We analysed bacterial community composition (BCC) at local and regional scales in 37 shallow lakes on two Patagonian plateaus and evaluated the influence of environmental variables and geographic position on community structure.</li>\u0000 \u0000 \u0000 <li>β diversity within each plateau was the key component of regional bacterioplankton diversity. The sum of amplicon sequence variants (ASV) exclusive to each plateau was greater than 50%. Most of the exclusive ASVs corresponded to rare ones from each plateau, whereas abundant ASVs were mostly shared by both plateaus (81%), which indicates a more restricted distribution of rare and higher dispersal of abundant ASVs.</li>\u0000 \u0000 \u0000 <li>The lakes of the Strobel and Buenos Aires plateaus spanned a wide range of environmental conditions, which were associated with the BCC of lakes from both plateaus. Macrophyte cover, fish presence, conductivity, dissolved organic carbon, pH, and altitude were associated with BCC in these lakes. Notably, differences at the phylum and class levels were observed in lakes with contrasting limnological features. Fishless lakes had significantly greater relative abundance of <i>Bacteroidia</i> and <i>Gammaproteobacteria</i> than fish-stocked lakes. Lakes without macrophytes showed significantly higher relative abundances of <i>Cyanobacteria</i> and <i>Planctomycetota</i> than vegetated environments, and, conversely, vegetated lakes exhibited the highest relative abundance of <i>Bacteroidota</i>.</li>\u0000 \u0000 \u0000 <li>Our study shows a strong link between BCC and environmental factors, regardless of their regional or local classifications. Rare bacteria were more strongly associated with spatial factors than total or abundant bacteria, suggesting a limited dispersal capacity. Our findings highlight that variability in environmental conditions influences BCC and determines high β diversity and, consequently, high γ diversity.</li>\u0000 </ol>\u0000 \u0000 </div>","PeriodicalId":12365,"journal":{"name":"Freshwater Biology","volume":"70 5","pages":""},"PeriodicalIF":2.8,"publicationDate":"2025-05-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144085497","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":"Competitive Outcomes Between Floating-Leaved and Submerged Plants Under Eutrophication Depend on Growth Form","authors":"Chuanxin Chao,&nbsp;Lei Dong,&nbsp;Weicheng Yu,&nbsp;Ru Huang,&nbsp;Xianyan Qin,&nbsp;Yonghong Xie,&nbsp;Feng Li","doi":"10.1111/fwb.70050","DOIUrl":"https://doi.org/10.1111/fwb.70050","url":null,"abstract":"<div>\u0000 \u0000 <p>\u0000 \u0000 </p><ol>\u0000 \u0000 \u0000 <li>The niches of floating-leaved plants partially overlap with those of submerged plants, leading to widespread competition between the two in freshwater ecosystems. Therefore, one of the biggest challenges for submerged plants is coexisting with floating-leaved plants. However, the mechanisms of coexistence between floating-leaved plants of varying densities and different growth forms of submerged plants under eutrophic conditions remain unclear.</li>\u0000 \u0000 \u0000 <li>Here, we conducted a mesocosm experiment to study the combined effects of different densities and eutrophication levels of a common floating-leaved plant (<i>Nymphoides peltata</i>) on three growth forms of submerged plants (bottom-dwelling <i>Vallisneria natans</i>, erect <i>Myriophyllum aquaticum</i> and canopy-forming <i>Myriophyllum spicatum</i>).</li>\u0000 \u0000 \u0000 <li>We found that intermediate and high densities (9 and 18 plants) of <i>N. peltata</i> significantly reduced the total biomass and leaf chlorophyll content of submerged plants and had a greater impact on the morphological traits of <i>V. natans</i> and <i>M. spicatum</i>. In contrast, its effects on <i>M. aquaticum</i> were relatively minor, causing only slight reductions in ramet number and plant height. Elevated nutrient levels alleviated the competitive pressure of intermediate density <i>N. peltata</i> on submerged plants but were more favourable to <i>M. spicatum</i> and <i>M. aquaticum</i>. Submerged plants of different growth forms exhibited species-specific responses to this. <i>V. natans</i> responded by increasing plant height and allocating more biomass to the roots, while <i>M. spicatum</i> responded by producing more ramets and having a lower root/shoot ratio.</li>\u0000 \u0000 \u0000 <li>The combined effect of density and nutrient level had the greatest impact on the organ nutrient content of the erect <i>M. aquaticum</i>. Furthermore, increased floating-leaved plant density and higher levels of eutrophication were most detrimental to the growth of the bottom-dwelling <i>V. natans</i>.</li>\u0000 \u0000 \u0000 <li>Our study suggests that under eutrophic conditions, the coexistence pattern between floating-leaved and submerged plants will change, strengthening the dominance of floating-leaved plants and presenting greater challenges for submerged plants.</li>\u0000 </ol>\u0000 \u0000 </div>","PeriodicalId":12365,"journal":{"name":"Freshwater Biology","volume":"70 5","pages":""},"PeriodicalIF":2.8,"publicationDate":"2025-05-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144085498","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}