Aquatic Botany最新文献

{"title":"Demographic senescence and lifespan extension by caloric restriction in two duckweed species (Wolffia brasiliensis and Lemna aequinoctialis)","authors":"Athita Senayai ,&nbsp;Suzanne L. Chmilar ,&nbsp;Dilini Abeyrama ,&nbsp;Theresa M. Burg ,&nbsp;Robert A. Laird ,&nbsp;Ekaphan Kraichak","doi":"10.1016/j.aquabot.2026.103991","DOIUrl":"10.1016/j.aquabot.2026.103991","url":null,"abstract":"<div><div>Demographic senescence involves population-level declines in survival and reproduction with increasing age Duckweeds provide excellent models for plant senescence research due to their rapid clonal propagation and short lifespans. While caloric restriction (CR) extends lifespans in heterotrophs, its effect on plants remains poorly understood. We investigated demographic senescence and CR effects by reducing light intensity in two duckweed species: <em>Wolffia brasiliensis</em> Wedd. and <em>Lemna aequinoctialis</em> Welw. Using longitudinal laboratory studies of 336 individual plants per species, we recorded daily reproduction from birth to death under controlled light treatments. Both species exhibited significant demographic senescence, with survival data fitting logistic models for <em>W. brasiliensis</em> across treatments, while <em>L. aequinoctialis</em> fit Weibull (full light) and logistic (dim light) models. Generalized estimating equations revealed significant age-related declines in daily reproduction probability across all treatments (<em>p</em> &lt; 0.001). CR significantly extended mean lifespan in both species: from 26.11 days (full light) to 28.45 days (dim light) in <em>W. brasiliensis</em> (<em>p</em> &lt; 0.001) and from 24.74 days (full light) to 33.67 days (dim light) in <em>L. aequinoctialis</em> (<em>p</em> &lt; 0.001). While total offspring production remained similar between treatments, the intrinsic rate of increase measured at the individual level (<em>r</em>) was significantly higher unde<em>r</em> full light. These findings demonstrate demographic senescence across duckweed genera and suggest that CR can extend lifespan in photoautotrophic organisms. Temporal scaling analysis revealed complete conservation of senescence trajectories in <em>W. brasiliensis</em>, while a marginally non-significant difference was detected in <em>L. aequinoctialis</em> (<em>p</em> = 0.065), suggesting potential s<em>p</em>ecies-specific responses to CR that warrant further investigation.</div></div>","PeriodicalId":8273,"journal":{"name":"Aquatic Botany","volume":"204 ","pages":"Article 103991"},"PeriodicalIF":2.6,"publicationDate":"2026-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145973035","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Combined effects of tidal regimes and polybrominated diphenyl ether BDE-47 (a persistent organic chemical) on growth, enzymatic and non-enzymatic antioxidants in Kandelia obovata","authors":"Ying Wang ,&nbsp;Yi-tong Du ,&nbsp;Nora Fung-Yee Tam","doi":"10.1016/j.aquabot.2025.103983","DOIUrl":"10.1016/j.aquabot.2025.103983","url":null,"abstract":"<div><div>The present study examined the combined effects of polybrominated diphenyl ethers (PBDEs, represented by 2,2’,4,4’-tetrabromodiphenyl ether, BDE-47) and tidal flooding regimes on the growth, antioxidative enzymes (superoxide dismutase, SOD; peroxidase, POD; catalase, CAT) and non-enzymatic antioxidants (total polyphenols and extractable condensed tannins) in <em>Kandelia obovata</em> (Ko) seedlings. Greenhouse experiments were conducted with one-year-old Ko seedlings, which were exposed to three tidal frequencies (no tidal flooding, every two-day tidal flooding and every day tidal flooding) and five BDE-47 levels (0, 0.1, 1, 5, 10 mg kg⁻¹ dry weight). Results showed that Ko tolerated BDE-47 up to 10 mg kg⁻¹ dry weight, with no significant differences in tissue biomass or chlorophyll contents vs. control. Daily tidal flooding (highest frequency) promoted growth (higher biomass and leaf number) and increased the activity of three key antioxidant enzymes (SOD, POD, CAT) in roots and leaves, relative to the less frequent flooding. Notably, 10 mg kg⁻¹ BDE-47 reduced total polyphenols and extractable condensed tannins in roots and leaves, with no significant differences among tidal regimes. In conclusions, our findings confirmed that the tolerance of Ko to combined BDE-47 and tidal flooding stress was mediated by a clear mechanistic link: Enzymatic antioxidants (SOD, POD, CAT) adapt to tidal-induced oxidative stress, while non-enzymatic antioxidants (total polyphenols and extractable condensed tannins) mitigate BDE-47 damage. These findings offer critical insights into mangrove adaptive strategies under co-occurring stresses, informing conservation and restoration of mangrove ecosystems facing tidal dynamics and pollution.</div></div>","PeriodicalId":8273,"journal":{"name":"Aquatic Botany","volume":"204 ","pages":"Article 103983"},"PeriodicalIF":2.6,"publicationDate":"2026-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145747820","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Exploring calcium oxalate crystals as a functional trait for salt tolerance in mangrove Rhizophoraceae","authors":"Sukanta Ankure ,&nbsp;Subrata Mondal ,&nbsp;Saikat Naskar","doi":"10.1016/j.aquabot.2025.103985","DOIUrl":"10.1016/j.aquabot.2025.103985","url":null,"abstract":"<div><div>Druse-type Calcium oxalate (CaOx) crystals are commonly found in mangroves, yet their functional role remains unclear. To explore their significance, seedlings of <em>Bruguiera gymnorhiza</em> were grown under varying dilutions of brackish water. Growth responses were maximised. at moderate salinity, but the abundance of CaOx crystals continued to rise with increasing substrate salinity, whereas soluble salt concentrations remained constant. Measurements of salinity along with Na⁺, K⁺, and Ca²⁺ from fresh leaf extracts (soluble salts) and acid-digested leaf extracts (total salts) showed that a substantial fraction of salts was immobilised through CaOx crystal formation, primarily involving Ca²⁺, followed by Na⁺ and K⁺. In naturally growing <em>Bruguiera gymnorhiza</em>, <em>Ceriops decandra</em>, and <em>Rhizophora mucronata</em>, total salt content increased gradually from top to basal leaves, while soluble salt remained relatively constant. Leaf thickness, an approximate proxy for succulence within a species, increased toward basal nodes and correlated positively with the number of CaOx crystals. The Ca–Na ratio derived from CaOx crystals and total salts showed significant variation, though with an uncertain effect size. A moderate negative relationship was detected between Specific Leaf Area (SLA) with both total salt content and CaOx crystal abundance. Collectively, these findings suggest that CaOx formation in mangrove leaves acts as a functional trait that maintains cellular homeostasis, thereby enhancing fitness under salinity stress.</div></div>","PeriodicalId":8273,"journal":{"name":"Aquatic Botany","volume":"204 ","pages":"Article 103985"},"PeriodicalIF":2.6,"publicationDate":"2026-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145797578","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Seaweed strandings as a nitrogen source for benthic algae: Evidence from in situ and in vitro experiments in the English Channel","authors":"Stéphanie Lemesle ,&nbsp;Anne-Marie Rusig ,&nbsp;Pascal Claquin ,&nbsp;Isabelle Mussio","doi":"10.1016/j.aquabot.2025.103986","DOIUrl":"10.1016/j.aquabot.2025.103986","url":null,"abstract":"<div><div>Seaweed strandings are recurrent in the eastern Seine Bay (English Channel) and may strongly affect nutrient dynamics at the sediment–water interface. This study investigated whether nitrogen released from decaying stranded seaweeds contributes to nitrogen availability for benthic <em>Ulva</em> during summer, using a combined approach of 19 months of <em>in situ</em> monitoring and an <em>in vitro</em> experiment. Variation in δ¹⁵N in <em>Ulva</em> (δ¹⁵N_{<em>Ulva</em>}) was observed, with lower values (&lt;7 ‰) in spring and higher values (&gt;9 ‰) in summer. In spring, low δ¹⁵N_{<em>Ulva</em>} values and the positive correlation between concentrations of dissolved inorganic nitrogen (DIN) in intertidal seawater and the River Orne’s flow indicate a terrigenous nitrogen origin, mainly from agricultural fertilizers. In summer, concentrations of dissolved organic nitrogen (DON) and ammonium increased in both intertidal and interstitial waters. Significant positive correlations were found between δ¹⁵N_{<em>Ulva</em>}, the extent of algal wracks, and DON concentrations, the latter also increasing with the extent of wracks. These relationships suggest that, in summer, when riverine nitrogen inputs are minimal, decaying stranded seaweeds constitute an endogenous nitrogen source for benthic seaweeds. This hypothesis was supported by a controlled experiment showing an increase in δ¹⁵N in <em>Ulva</em> thalli after 9 days of culture in seawater enriched with algal leachate. Such endogenous nitrogen recycling supports the growth of opportunistic <em>Ulva</em>, which dominate summer strandings and negatively affect coastal water quality assessments under the European Water Framework Directive. These findings highlight the importance of accounting for seaweed strandings in strategies and management actions aimed at improving coastal water quality.</div></div>","PeriodicalId":8273,"journal":{"name":"Aquatic Botany","volume":"204 ","pages":"Article 103986"},"PeriodicalIF":2.6,"publicationDate":"2026-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145880431","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Variations in environmental DNA deteAQBOT 103954ction of aquatic plants across water body types: A case study of the Tokachi River","authors":"Chigaya Enju ,&nbsp;Souta Nakajima ,&nbsp;Kenji Tsuri ,&nbsp;Ryusuke Shinohara ,&nbsp;Kazuki Kanno ,&nbsp;Keiko Muraoka ,&nbsp;Koji Katagiri","doi":"10.1016/j.aquabot.2025.103954","DOIUrl":"10.1016/j.aquabot.2025.103954","url":null,"abstract":"<div><div>The conservation of aquatic plants in freshwater ecosystems is essential for supporting aquatic animal communities. However, conducting field surveys of aquatic plants in riverine environments remains challenging, posing as a barrier to understanding their habitats. In this study, vegetation surveys and environmental DNA (eDNA) metabarcoding were conducted in the main channel, connected ponds, and isolated ponds of the Tokachi River—one of the major rivers in Japan. The aim of this study was to (i) compare species detection between eDNA metabarcoding and field survey results using multiple markers, (ii) determine whether eDNA detection of aquatic plants varies across water body types, and (iii) identify whether detection differences are associated with taxonomic groups or life forms of aquatic plants. A total of 34 species were recorded through field surveys, and 29 species were detected through eDNA analysis. At the species level, 24 species (approximately 80 %) could only be detected using one marker. Isolated ponds yielded the highest number of species in field and eDNA surveys. The families Potamogetonaceae and Poaceae were most frequently detected by eDNA (five species each); notably, both families were also well represented in vegetation surveys across many sites. Overall, submerged plants were detected more frequently by eDNA than emergent plants across all water body type. Additionally, eDNA was able to detect rare species. These findings suggest that eDNA surveys are a valuable tool for detecting submerged and rare aquatic plant species in large river systems, particularly where field-based identification is limited.</div></div>","PeriodicalId":8273,"journal":{"name":"Aquatic Botany","volume":"203 ","pages":"Article 103954"},"PeriodicalIF":2.6,"publicationDate":"2026-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145369775","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Incorporating evolutionary history in the explanation of the variation in leaf mass per area and its components of mangrove species","authors":"Justin Rugema ,&nbsp;Waseem Akram ,&nbsp;Jing Gao ,&nbsp;Zachee Gasana ,&nbsp;Frida Sidik ,&nbsp;Lili Wei","doi":"10.1016/j.aquabot.2025.103969","DOIUrl":"10.1016/j.aquabot.2025.103969","url":null,"abstract":"<div><div>Leaf mass per area (LMA) is closely linked to plant resource investment strategies. In most terrestrial plants, variation in LMA is primarily driven by leaf density. However, mangroves develop succulent leaves with high water content as an adaptation to saline environments. We therefore hypothesized that in mangroves, leaf thickness cannot be overlooked in explaining LMA variation, and that it exhibits greater phylogenetic plasticity than density. To test this, we analyzed the relative contributions of thickness and density to LMA variation and assessed their phylogenetic signals across 30 mangrove species in China. The results show that thickness and density contribute comparably to LMA variation in mangrove species. The covariation between LMA and leaf thickness is largely phylogenetically independent, whereas the relationship between LMA and leaf density is phylogenetically conserved. This decoupling indicates that mangroves regulate LMA through environmentally responsive adjustments in thickness, while leaf density is a more evolutionarily constrained trait. Consequently, these findings call into question the broad applicability of LMA as a direct indicator of plant resource investment strategies in mangroves.</div></div>","PeriodicalId":8273,"journal":{"name":"Aquatic Botany","volume":"203 ","pages":"Article 103969"},"PeriodicalIF":2.6,"publicationDate":"2026-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145577105","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Effect of exogenous salicylic acid on high temperature resistance of Sargassum muticum under different light conditions","authors":"Fang Lü,&nbsp;Xiaohui Liu,&nbsp;Liuqing Tang,&nbsp;Meili Xin,&nbsp;Wendan Chi,&nbsp;Dongmei Zhan,&nbsp;Haiyi Wu","doi":"10.1016/j.aquabot.2025.103967","DOIUrl":"10.1016/j.aquabot.2025.103967","url":null,"abstract":"<div><div><em>Sargassum muticum</em> is one of the dominant species in the coastal algal communities of China, and investigating its response to high-temperature stress is crucial for algal resource conservation and utilization. This study assessed the effects of exogenous salicylic acid (SA: 10.0 μg·mL⁻¹) on the heat tolerance of <em>S. muticum</em> under high light (160 μmol photons·m⁻²·s⁻¹) and low light (80 μmol photons·m⁻²·s⁻¹) at 15°C and 30°C, respectively. The results indicate that at 15°C, growth rate, activities of the antioxidant enzymes superoxide dismutase (SOD), catalase (CAT) and peroxidase (POD), and the expression of the <em>hsp</em>70 gene in <em>S. muticum</em> were significantly higher under high light than under low light conditions, with non-significant effect of SA. At the elevated temperature of 30°C, <em>S. muticum</em> was able to maintain a daily growth rate exceeding 9 % within 3 days, and the maximum photochemical efficiency (<em>F</em>v/<em>F</em>m) showed no significant changes. However, under low light conditions, the content of photosynthetic pigments and the actual quantum yield of PS II (Y(II)) decreased significantly, while malondialdehyde (MDA) content increased markedly; conversely, little change was observed in the high light group. Additionally, the addition of SA significantly enhanced the growth of <em>S. muticum</em> in both high and low light conditions, regulated photosynthetic characteristics, increased the expression of the <em>rbc</em>L gene, enhanced peroxidase activity, and further promoted the expression of the <em>hsp</em>70 gene induced by high temperature. These findings provide insights for the artificial cultivation of <em>S. muticum</em> under challenging environmental conditions.</div></div>","PeriodicalId":8273,"journal":{"name":"Aquatic Botany","volume":"203 ","pages":"Article 103967"},"PeriodicalIF":2.6,"publicationDate":"2026-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145577114","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Trans-Atlantic drift of the holopelagic Sargassum natans and S. fluitans on the Moroccan Atlantic coast: First report linked to unusual climatic event and ocean currents in the northeastern Atlantic Ocean","authors":"Khansae Kamal ,&nbsp;Khaoula Khaya ,&nbsp;Zahira Belattmania ,&nbsp;Abdellatif Chaouti ,&nbsp;Joao Neiva ,&nbsp;Aschwin Hillebrand Engelen ,&nbsp;Valérie Stiger-Pouvreau ,&nbsp;Ester A. Serrão ,&nbsp;Brahim Sabour","doi":"10.1016/j.aquabot.2025.103966","DOIUrl":"10.1016/j.aquabot.2025.103966","url":null,"abstract":"<div><div>The beaching events of holopelagic (free-floating) <em>Sargassum</em>, marked by the substantial influx of brown seaweed along the Atlantic coastlines, present a considerable challenge to marine ecosystems and coastal economies, as its clonal growth disrupts local biodiversity and affects industries including tourism and fisheries. The <em>Sargassum fluitans</em> and <em>S. natans</em> have been found for the first time along the Atlantic coast of Morocco, North Africa, between late March and early May 2024. The beached biomass consisted of the main morphotypes identified in the tropical Atlantic Ocean: <em>S. fluitans</em> var. <em>fluitans</em> (syn. <em>S. fluitans</em> III) and <em>S. natans</em> var. <em>natans</em> (syn. <em>S. natans</em> I) and <em>S. natans</em> var. <em>wingei</em> (syn. <em>S. natans</em> VIII). The <em>in-situ</em> observation of drifting <em>Sargassum</em> populations revealed a density of 10 ± 3 fronds/m² where <em>S. natans</em> var. <em>wingei</em> was the dominant form (58 %). Leading us think of the origin of their transport and stranding on the Atlantic Moroccan coasts that might have been caused by extreme climatic and hydrodynamic events that occurred after Nelson storm late March 2024. Major environmental drivers, including the Sea surface temperature (SST) variability, North Atlantic Oscillation (NAO) index and prevailing wind patterns were considered. This unusual event should prompt more monitoring and vigilance regarding the circulation of marine currents and species introduced into this region.</div></div>","PeriodicalId":8273,"journal":{"name":"Aquatic Botany","volume":"203 ","pages":"Article 103966"},"PeriodicalIF":2.6,"publicationDate":"2026-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145577115","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Effects of increasing temperature on the growth, survival, and non-structural carbohydrate content of the seagrass Halophila beccarii","authors":"Zhixin Zhong ,&nbsp;Liuyuan Zou ,&nbsp;Jie Wang ,&nbsp;Xiaochen Cheng ,&nbsp;Gaoquan He ,&nbsp;Le-Zheng Qin","doi":"10.1016/j.aquabot.2025.103964","DOIUrl":"10.1016/j.aquabot.2025.103964","url":null,"abstract":"<div><div><em>Halophila beccarii</em>, a key habitat-forming seagrass in estuarine and coastal ecosystems, faces increasing threats from rising seawater temperatures. However, its survival strategies and physiological responses to thermal stress remain poorly characterized. This study conducted a field observation investigating the population dynamics of <em>H. beccarii</em> in the Nandu River estuary, China, over two years and a temperature experiment examining its growth, morphological traits, and non-structural carbohydrate (NSC) dynamics under manipulated thermal stress (exposure to 25°C, 30°C, and 35°C for 28 days followed by a 30-day recovery period at 25°C). The results of the field observation showed that extreme temperatures (&gt;40°C) in May 2023 triggered sharp declines in shoot density, biomass, and NSC content, resulting in a near-complete meadow-scale die-off by June 2023. In particular, the enhanced belowground starch reserves coincided with a higher shoot density and biomass, suggesting that meadows with greater biomass and NSC reserves were likely more resilient to thermal stress. Seedling recruitment during October 2023 partially facilitated population recovery. Elevated experimental temperatures (30°C and 35°C) reduced shoot density and inhibited clonal propagation. Leaf width and aboveground soluble sugar content increased at 30°C, suggesting morphological adaptation. During recovery, plant height, rhizome internode length, and belowground NSC content increased, indicating enhanced energy storage and recovery potential. These findings emphasize the lasting effects of thermal stress on <em>H. beccarii</em>, indicating its low resilience to extreme heat stress under future climate change scenarios.</div></div>","PeriodicalId":8273,"journal":{"name":"Aquatic Botany","volume":"203 ","pages":"Article 103964"},"PeriodicalIF":2.6,"publicationDate":"2026-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145475335","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Egeria densa Planch. (Hydrocharitaceae) in Northern Eurasia: genetic similarity and range expansion","authors":"Andrey Efremov ,&nbsp;Elena Antonova ,&nbsp;Vasily Vishnyakov ,&nbsp;Veronika Grishina ,&nbsp;Yuriy Davidyuk ,&nbsp;Anastasia Kuznetsova ,&nbsp;Aidar Zimnurov","doi":"10.1016/j.aquabot.2025.103970","DOIUrl":"10.1016/j.aquabot.2025.103970","url":null,"abstract":"<div><div>This study presents the first integrative assessment of <em>Egeria densa</em> Planch. invasion in Northern Eurasia using molecular phylogenetics and ensemble species distribution modeling based on over 3200 occurrence records. Genetic analyses revealed high similarity among distant populations, indicating few invasion sources and predominance of clonal reproduction. Modeling identified annual mean temperature, mean temperature of the coldest quarter, and annual precipitation as principal climatic determinants. Results improve predictions of range expansion under climate warming and support targeted management of this invasive species.</div></div>","PeriodicalId":8273,"journal":{"name":"Aquatic Botany","volume":"203 ","pages":"Article 103970"},"PeriodicalIF":2.6,"publicationDate":"2026-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145577104","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}