Aquatic Ecology最新文献

{"title":"Plastics in mangrove ecosystems: a systematic review of distribution patterns and ecological implications, with focus on Ghana","authors":"Isaac Aninakwah,&nbsp;Simon Boateng,&nbsp;Enock Aninakwah,&nbsp;Kofi Adu-Boahen,&nbsp;Cynthia Anim,&nbsp;Ethel Gyimah,&nbsp;Evans Asamoah,&nbsp;Bakira Tahiru","doi":"10.1007/s10452-026-10318-x","DOIUrl":"10.1007/s10452-026-10318-x","url":null,"abstract":"<div><p>Plastic pollution has become a significant stressor in mangrove ecosystems, where complex root structures improve the trapping and retention of debris. Despite rising global attention, understanding of how plastics accumulate and affect mangrove systems remains geographically uneven. This study uses a systematic review guided by PRISMA 2020 to compile global evidence on plastic distribution patterns and ecological consequences, with a particular focus on Ghana and the West African region. A total of 2142 records were screened, of which 65 studies met the inclusion and quality criteria. Findings indicate that mangrove ecosystems consistently exhibit higher plastic loads than nearby coastal environments, with global macroplastic densities ranging from 0.15 to 1.05 items/m², while significantly higher localised densities of approximately 79 items/m² have been recorded in Ghana. Polyethylene and polypropylene were identified as the dominant polymers across regions, accounting for over 70% of the total plastic composition in most studies. Ecological impacts include disruption of seedling recruitment, alteration of sediment redox conditions, and ingestion by mangrove-associated fauna. Most studies remain concentrated in Asia and Latin America, while West Africa is significantly underrepresented and mainly characterised by cross-sectional research. Furthermore, management responses are implemented inconsistently and rarely evaluated quantitatively. This review emphasises the urgent need for standardised monitoring frameworks, longitudinal studies in African mangroves, and the integration of plastic mitigation strategies into mangrove conservation policies.</p></div>","PeriodicalId":8262,"journal":{"name":"Aquatic Ecology","volume":"60 3","pages":""},"PeriodicalIF":2.2,"publicationDate":"2026-06-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148281868","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Anthropogenic and seasonal signatures of microfibre contamination in fish from two Ghanaian coastal lagoons","authors":"Emmanuel Yeboah Okyere,&nbsp;Jones Abrefa Danquah,&nbsp;John Abraham,&nbsp;Enock Aninakwah","doi":"10.1007/s10452-026-10319-w","DOIUrl":"10.1007/s10452-026-10319-w","url":null,"abstract":"<div><p>Microfibre pollution is an emerging concern in aquatic ecosystems, yet its ecological dynamics and biological uptake in open and closed tropical lagoons remain poorly characterised. Coastal lagoons are particularly vulnerable due to limited flushing capacity and increasing urbanisation; however, studies in West Africa have largely concentrated on environmental occurrence and distribution in water and sediments, with limited attention to fish bioindicators and seasonal variability. To address this gap, we evaluated the spatio-temporal patterns of microfibre contamination in <i>Sarotherodon melanotheron</i> from two contrasting Ghanaian coastal lagoons, the highly urbanised Korle Lagoon and the urbanised Fosu Lagoon. A total of 120 fish specimens were collected bimonthly over a one-year period across the longitudinal gradients of the lagoons. Gastrointestinal tracts were subjected to alkaline digestion, vacuum filtration, stereomicroscopic identification, and polymer confirmation using FTIR spectroscopy. Statistical comparisons and principal component analysis were applied to assess spatial and seasonal structuring of Microfibres (MFs). Microfibre abundance was significantly higher in the Korle Lagoon (6.58 ± 1.24 MFs per fish) than in the Fosu Lagoon (3.08 ± 1.07 MFs per fish; Welch’s <i>t</i> = 5.23, <i>df</i> = 9.78, <i>p</i> = 0.0004). Fibres &lt; 100 µm and black-coloured particles predominated in both systems. Polyethylene was the dominant polymer, with greater heterogeneity in the urban lagoon. PCA revealed strong spatial differentiation (PC1 = 70.01% of variance) and secondary seasonal structuring (PC2 = 20.11%). Microfibre assemblages were strongly associated with differences in urbanisation intensity and showed secondary seasonal structuring, suggesting that anthropogenic inputs and seasonal hydrological variability may influence microfibre availability and biological uptake in tropical coastal lagoons.</p></div>","PeriodicalId":8262,"journal":{"name":"Aquatic Ecology","volume":"60 3","pages":""},"PeriodicalIF":2.2,"publicationDate":"2026-06-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148261762","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Shellfish hydrotherapy: plant-derived extracts enhance stress resilience in juvenile mussels (Perna canaliculus)","authors":"Natalí J. Delorme,&nbsp;Cora Hertzer,&nbsp;Paula Casanovas,&nbsp;Jordan E. Elvy,&nbsp;Johan Svenson,&nbsp;Norman L. C. Ragg,&nbsp;Leonardo N. Zamora","doi":"10.1007/s10452-026-10317-y","DOIUrl":"10.1007/s10452-026-10317-y","url":null,"abstract":"<div><p>Currently the aquaculture industry is facing many challenges, such as more frequent and severe marine heatwaves and disease outbreaks. Prophylactic treatments can help mitigate specific issues within the aquaculture industry. In this study, we assessed the concept of “shellfish hydrotherapy” for juvenile green-lipped mussels, <i>Perna canaliculus</i> (1–2 mm), by exposing them to plant-derived extracts as antistress prophylactics to improve heat tolerance. Two experiments were performed using extracts derived from prickly pear (<i>Opuntia ficus-indica</i>) and beetroot (<i>Beta vulgaris rubra</i>), which contain similar bioactive compounds, including betalains and phenolics. In the first experiment, 41 treatments, including controls and extracts at different concentrations (1–6000 µg/ml), were scoped to identify beneficial extracts. A second experiment evaluated eight treatments, focussing on beetroot extracts at different concentrations (0.005–600 µg/ml) and controls, to validate improvements in heat tolerance. Testing involved bathing the mussels in the extract solutions for 2 h before they were exposed to a heat challenge, evaluating survival at 48 h after the stress. Results showed that survival to heat is significantly improved when mussels are treated with extracts derived from <i>Opuntia</i> (~ 2% increase) and beetroot (~ 7% increase), compared to untreated mussels. The mechanism of action of these treatments remains to be investigated, but it is likely that prophylactic treatments could have broader benefits beyond thermal tolerance. Hence, the use of plant-derived extracts as stress prophylactic treatments in aquaculture could have multiple advantages, also having the potential to be applied to different phases of production to increase general resilience of a target species at their most vulnerable stages.</p></div>","PeriodicalId":8262,"journal":{"name":"Aquatic Ecology","volume":"60 2","pages":""},"PeriodicalIF":1.8,"publicationDate":"2026-06-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148236998","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Rare beaching event of the neustonic blue dragon (Glaucus atlanticus) and blue button jellyfish (Porpita porpita) along the Odisha coast, India","authors":"Panda Narayan,&nbsp;K. U. Abdul Jaleel,&nbsp;V. B. Adarsh,&nbsp;R. Jyothibabu","doi":"10.1007/s10452-026-10306-1","DOIUrl":"10.1007/s10452-026-10306-1","url":null,"abstract":"<div><p>The current study reports an unusual beaching event of the neustonic blue dragon sea slug (<i>Glaucus atlanticus</i>) along the coast of Gopalpur, Odisha, India (19° 15′ 05″ N 84° 54′ 08″ E). More than 100 individuals of the sea slug, an oceanic species, along with blue button jellies (<i>Porpita porpita</i>), were washed ashore on the beach in the late afternoon of April 14, 2024. They were found trapped in the intertidal pools during the ebb tide. Images and videos of the organisms were captured, and morphometric measurements of <i>G. atlanticus</i> and <i>P. porpita</i> were taken randomly. To identify the potential drivers of this beaching event, satellite-derived sea surface temperature (SST), sea surface wind, tide and ocean currents were analysed. It was found that the observed rare beaching event was caused by the combined effect of the strong wind and tide, and also the proximity of the strong warm East India Coastal Current. Even though records are available on the presence of <i>G. atlanticus</i> in Indian waters, this forms the first report ever made on their unusual beaching along the Indian coast. The study also showed the preferred distribution of the species in warm surface currents across the globe.</p></div>","PeriodicalId":8262,"journal":{"name":"Aquatic Ecology","volume":"60 2","pages":""},"PeriodicalIF":1.8,"publicationDate":"2026-06-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148172181","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Regulation of photosystem II and key stress-response genes in Raphidiopsis raciborskii under combined chill/light stress","authors":"Nada Tokodi,&nbsp;Adam Antosiak,&nbsp;Damjana Drobac Backović,&nbsp;Dariusz Dziga","doi":"10.1007/s10452-026-10316-z","DOIUrl":"10.1007/s10452-026-10316-z","url":null,"abstract":"<div><p>Previous findings revealed strain-specific differences in pigment composition, photoprotective capacity, and photosynthetic efficiency among <i>Raphidiopsis raciborskii</i> strains. To complement these results, the present study examined four strains, three non-cylindrospermopsin-producing isolates from temperate regions in Poland and one strain from tropical Australia that produces this cyanotoxin, in order to elucidate acclimation mechanisms under combined chill/light stress using functional and molecular approaches. The investigation focused on photosystem II (PSII) performance and the expression of genes involved in transcriptional and translational regulation (<i>rbp1, nusG</i>), membrane remodelling (<i>desA</i>), photosynthetic function (<i>ccr2</i>), PSII repair (<i>ftsH, fabZ</i>), and compatible solute synthesis (<i>asd</i>). By combining JIP test analysis with gene expression profiling, the study integrates functional and transcriptional perspectives to better understand how <i>R. raciborskii</i> adjusts its photosynthetic machinery to environmental stress. JIP test analysis revealed distinct photosynthetic responses among strains under combined chill/light stress. Temperate strains exhibited increased energy dissipation (DI₀/RC) and activation of cyclic electron flow, enhancing photoprotection and PSII stability. The strain UAM/DH-MRr showed simultaneous enhancement of linear and cyclic electron transport, indicating flexible energy redistribution. Gene expression profiling demonstrated ecotype-specific acclimation strategies. Early activation of transcriptional regulators (<i>nusG, rpb1</i>) was followed by the induction of membrane remodelling (<i>desA</i>), PSII repair (<i>ftsH, fabZ</i>), and compatible solute synthesis (<i>asd</i>). The tropical strain CS-506 displayed the most extensive and sustained transcriptional response, while temperate strains showed rapid or delayed activation. The weakest response in UAM/DH-MRr suggested tolerance or pre-adaptation. Overall, these results highlight flexible, strain-dependent acclimation mechanisms that underpin the ecological success and climatic adaptability of <i>R. raciborskii.</i></p></div>","PeriodicalId":8262,"journal":{"name":"Aquatic Ecology","volume":"60 2","pages":""},"PeriodicalIF":1.8,"publicationDate":"2026-06-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s10452-026-10316-z.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148172148","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"A harmonised dataset of field observations on zoosporic parasites infecting aquatic primary producers","authors":"Serena Rasconi,&nbsp;Albert Reñé,&nbsp;Alena S. Gsell,&nbsp;Alexandra Kraberg,&nbsp;Katelyn McKindles,&nbsp;Silke Van den Wyngaert,&nbsp;Ilaria Rosati,&nbsp;Andrea Tarallo","doi":"10.1007/s10452-026-10314-1","DOIUrl":"10.1007/s10452-026-10314-1","url":null,"abstract":"<div><p>Zoosporic parasites are a polyphyletic group of microorganisms characterised by a motile spore stage, which play a crucial ecological role in aquatic environments. They are known to influence population dynamics of aquatic primary producers, nutrient cycling, and energy transfer within microbial food webs. Despite their importance, data on their diversity, distribution, and interactions with their hosts remain sparse and fragmented. Here, we present a harmonised dataset of field observations on zoosporic parasites infecting aquatic primary producers. The dataset integrates both published and previously unpublished records, encompassing more than 4427 observations collected between 2007 and 2021 across 28 sites in Europe and North America. It includes data for 91 unique parasite taxa, along with confirmed and putative parasite–host associations derived from direct microscopic or molecular evidence. All records were standardised using the Darwin Core schema to ensure interoperability and long-term usability. This open-access resource provides a foundation for comparative and meta-analytical studies on parasite–host ecology, biodiversity assessments, and industrial applications related to algal production systems.</p></div>","PeriodicalId":8262,"journal":{"name":"Aquatic Ecology","volume":"60 2","pages":""},"PeriodicalIF":1.8,"publicationDate":"2026-06-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s10452-026-10314-1.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148172363","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"The Threespine stickleback a diverse key species for the Lake Mývatn ecosystem","authors":"Bjarni K. Kristjánsson,&nbsp;Árni Einarsson,&nbsp;Ásgrímur Guðmundsson,&nbsp;Joseph Phillips,&nbsp;Kasha Strickland,&nbsp;Alessandra Schnider,&nbsp;Ragna Guðrún Snorradóttir,&nbsp;Skúli Skúlason,&nbsp;Blake Matthews,&nbsp;Zophonías O. Jónsson,&nbsp;Anthony R. Ives,&nbsp;Anssi Karvonen,&nbsp;Katja Räsänen","doi":"10.1007/s10452-026-10307-0","DOIUrl":"10.1007/s10452-026-10307-0","url":null,"abstract":"<div><p>Biological diversity across hierarchical levels (e.g. genes and populations to communities and ecosystems) is the result of dynamic interactions between ecological, developmental and evolutionary processes. Detailed long-term studies of ecosystems in the wild are important for a holistic understanding of how biological diversity and ecosystem function are affected by natural and anthropogenic changes, Lake Mývatn, Northeast Iceland, is an exceptionally well-studied ecosystem with decades long time series data across multiple trophic levels, including threespine stickleback (<i>Gasterosteus aculeatus</i>), a keystone fish species in this ecosystem. Here we synthesise knowledge of ecological importance and evidence for intraspecific diversity of stickleback in Mývatn, and discuss its role as a potential mediator of eco-evolutionary feedbacks. In terms of ecology, the population density of stickleback fluctuates strongly over time and varies across different habitats in the lake. Stickleback have a key role across different trophic levels: they are important prey for birds and fish, hosts for various parasite, as well as effective predators on invertebrates and likely have considerable impact on invertebrate and vertebrate populations of Mývatn. The stickleback of Mývatn is a generalist species, which shows evidence of subtle phenotypic and genetic divergence across habitats (likely due to periodically strong dispersal and subsequent gene flow), but substantial phenotypic and genetic change across years (indicating potential for microevolution in response to strong temporal environmental changes). We discuss different sources of variation in stickleback ecology, as well as the potential for stickleback to mediate feedbacks between ecological and evolutionary processes in this spatio-temporally dynamic lake ecosystem.</p></div>","PeriodicalId":8262,"journal":{"name":"Aquatic Ecology","volume":"60 2","pages":""},"PeriodicalIF":1.8,"publicationDate":"2026-05-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s10452-026-10307-0.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148173657","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Gut microplastics of two non-native freshwater fish species, Geophagus altifrons and Cichla orinocensis, in Singapore reservoirs","authors":"Xue Shen Teo,&nbsp;Kean Sim Lai,&nbsp;Jeffrey T. B. Kwik,&nbsp;Maxine A. D. Mowe,&nbsp;Darren C. J. Yeo","doi":"10.1007/s10452-026-10312-3","DOIUrl":"10.1007/s10452-026-10312-3","url":null,"abstract":"<div><p>Microplastics in freshwater environments have intruded into food webs and can impact fish health negatively. This study quantified the abundance of putative microplastics in the water and sediment of two reservoirs, as well as in the gastrointestinal tracts of two fish species (<i>Geophagus altifrons</i> and <i>Cichla orinocensis</i>) captured along multiple littoral transects parallel to shore in these reservoirs. We found significant differences in microplastic concentrations in the water (8.67 items/m³ vs. 46.7 items/m³) and sediment (313 items/kg vs. 2040 items/kg) between the two reservoirs, and between both fish species. A total of 2394 putative microplastic particles were found from the 165 fish sampled, with a frequency of occurrence of 72%. In Reservoir 1, microplastic concentrations were 4.43 ± 7.02 items/g and 5.52 ± 4.04 items/g in <i>C. orinocensis</i> and <i>G. altifrons</i>, respectively; in Reservoir 2, concentrations were 4.65 ± 6.07 items/g and 12.21 ± 11.96 items/g in <i>C. orinocensis</i> and <i>G. altifrons</i>, respectively. The omnivorous, demersal <i>Geophagus altifrons</i> at Reservoir 2 had the highest microplastic uptake (12.21 ± 11.96 items/g) among the four reservoir-fish species combinations possibly due to environmental microplastic concentrations, its winnowing feeding behaviour, and its benthic feeding zone. Microfibres were the most abundant microplastics (57.9%) in <i>Geophagus altifrons</i> at Reservoir 2 while all other reservoir-fish species combinations had fragments as the most abundant microplastic category. Microplastics present in the fish guts could be associated with their specific feeding behaviours, feeding zones and diets. Our findings suggest that the association between environmental microplastic concentrations and fish gut microplastics may be confounded by the specific mechanisms by which microplastics enter the food web. This could be further modulated by the type and sizes of microplastics; characterizing these interactions are paramount to identifying particularly vulnerable components of freshwater food webs threatened by microplastic pollution. Both fish species are introduced to Singapore, providing insights on how non-native species can also be effective indicators of microplastic pollution in lentic freshwaters.</p></div>","PeriodicalId":8262,"journal":{"name":"Aquatic Ecology","volume":"60 2","pages":""},"PeriodicalIF":1.8,"publicationDate":"2026-05-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148010113","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Larvae of Hysterothylacium sp. (Ascaridida: Raphidascarididae) affecting the condition factor of Piabina argentea (Characiformes: Stevardiidae) in the Pardo River Basin, Brazil: an integrative approach","authors":"Beatriz Pátaro Canal,&nbsp;Julio Cesar de Cenci Aguiar,&nbsp;Reinaldo José da Silva","doi":"10.1007/s10452-026-10311-4","DOIUrl":"10.1007/s10452-026-10311-4","url":null,"abstract":"<div><p>This study presents the first helminthological investigation of <i>Piabina argentea</i> from the Pardo River Basin, Brazil, revealing a novel parasite-host system involving <i>Hysterothylacium</i> sp. larvae and a previously uncharacterized South American freshwater raphidascaridid lineage. Molecular phylogenetic analysis based on 18S, ITS1, 5.8S, ITS2, and COXII, demonstrated the non-monophyly of <i>Hysterothylacium</i>, supporting multiple independent marine-to-freshwater incursions. This underscores the genus’ taxonomic complexity, as morphologically similar larvae can be molecularly distinct, highlighting the urgent need to sequence the type species, <i>Hysterothylacium brachyurum</i>, a freshwater lineage for which genetic data are currently unavailable. Although fishes have been collected in two localities, host size and water quality did not explain the exclusive presence of <i>Hysterothylacium</i> sp. in hosts from the Hortelã River. Fish size did not differ significantly, and water quality indices were remarkably similar between the two sampling sites. Instead, distinct landscape features provided critical insights: the Hortelã River site exhibited significantly greater soil cover by native vegetation (37.9%) and less area for agricultural activity (42%) compared to the Pardo River locality (18.7% native, 74% agricultural). The GLMs revealed a nuanced infection pattern: while larger fish generally harbored more larvae, lighter individuals within larger size classes carried higher parasite infection, suggesting impaired host condition. Given the importance of allochthonous food sources for <i>P. argentea</i> and its tendency towards herbivory in larger individuals, we hypothesize that increased allochthonous inputs in vegetated areas benefit microcrustacean intermediate hosts, leading to incidental <i>P. argentea</i> infection through herbivory. This research emphasizes the intricate interplay of host-parasite dynamics and local environmental context.</p></div>","PeriodicalId":8262,"journal":{"name":"Aquatic Ecology","volume":"60 2","pages":""},"PeriodicalIF":1.8,"publicationDate":"2026-05-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s10452-026-10311-4.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148010114","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Combining taxonomic, functional and biomonitoring metrics to evaluate the recovery of alpine stream macroinvertebrate communities after an extreme flood","authors":"Niccolò Talluto,&nbsp;Ilaria Bonalumi,&nbsp;Annalisa Givonetti,&nbsp;Paola Emma Botta,&nbsp;Pancrazio Bertaccini,&nbsp;Giuseppe Roberto Pisaturo,&nbsp;Livia Servanzi,&nbsp;Silvia Quadroni,&nbsp;Alberto Doretto","doi":"10.1007/s10452-026-10309-y","DOIUrl":"10.1007/s10452-026-10309-y","url":null,"abstract":"<div><p>Floods are usually recognized as a natural disturbance of lotic ecosystems shaping riverine communities. Although benthic macroinvertebrates display morphological and behavioural adaptations to cope with flood-related conditions, the diversity and density of these organisms are generally reduced after a flood. Understanding the mechanisms and timing of the post-flood recovery of macroinvertebrate communities assumes a key importance in aquatic ecology, but our current knowledge is limited by the restricted number of studies as well as the metrics used to evaluate the success in recovery. In this study, the temporal recovery of macroinvertebrate communities in the Anza River (northwestern Italy) after an extreme flood was evaluated by analysing a multifaceted set of taxonomic, functional, and biomonitoring metrics. The taxonomic composition of macroinvertebrate communities changed over time along with a significant increment in the percentage of fine sediment in the substrate immediately after the flood. Overall, richness and density metrics significantly declined after the flood but, within 9 months, they approached or even exceeded the before-flood values. Functional richness and functional evenness, instead, decreased over time and, after nine months, did not recover to the before-flood values. Although the considered biomonitoring indices were significantly reduced by the flood, they differed in the post-flood recovery outcome. Since floods are expected to be more frequent in the next future due to climate change, the results of this study provide evidence on which metrics drive the post-flood recovery of macroinvertebrate communities with potential insights for disentangling the impacts of natural and anthropogenic pressures on river ecosystems.</p></div>","PeriodicalId":8262,"journal":{"name":"Aquatic Ecology","volume":"60 2","pages":""},"PeriodicalIF":1.8,"publicationDate":"2026-05-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s10452-026-10309-y.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148009336","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}