Aquatic Sciences最新文献

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Changes in basal resources mediate the effects of Eucalyptus spp. afforestation on macroinvertebrate functional diversity in subtropical lowland streams 桉树造林对亚热带低地溪流中大型无脊椎动物功能多样性影响的基底资源变化中介作用
IF 2 3区 环境科学与生态学
Aquatic Sciences Pub Date : 2024-11-18 DOI: 10.1007/s00027-024-01141-3
G. Margenny Barrios, Blanca Ríos-Touma, Dieison A. Moi, Maite Burwood, Jimena Alonso, Franco Teixeira de Mello
{"title":"Changes in basal resources mediate the effects of Eucalyptus spp. afforestation on macroinvertebrate functional diversity in subtropical lowland streams","authors":"G. Margenny Barrios,&nbsp;Blanca Ríos-Touma,&nbsp;Dieison A. Moi,&nbsp;Maite Burwood,&nbsp;Jimena Alonso,&nbsp;Franco Teixeira de Mello","doi":"10.1007/s00027-024-01141-3","DOIUrl":"10.1007/s00027-024-01141-3","url":null,"abstract":"<div><p><i>Eucalyptus</i> afforestation negatively affects the ecological condition of streams by impacting macroinvertebrates, whose responses to habitat deterioration and changes in basal resources are not well understood. This study examines the effects of <i>Eucalyptus</i> afforestation on macroinvertebrate functional diversity and trait structure, driven by variations in local habitat and basal resources. The study was conducted once in summer and winter across 27 subtropical lowland streams along an <i>Eucalyptus</i> spp. afforestation gradient. We measured physicochemical water parameters, habitat variables (substrates, depth and current velocity) and biomass of basal resources (macrophytes, periphyton and detritus) simultaneously with macroinvertebrate sampling. We used co-inertia multivariate RLQ and four-corner analyses to explore relationships between physicochemical water parameters, local habitat and basal resources, with trait structure. Structural equation modelling-SEM was used to understand the direct and indirect effects of <i>Eucalyptus</i> afforestation on macroinvertebrate functional diversity. SEM revealed that <i>Eucalyptus</i> afforestation indirectly reduced macroinvertebrate functional diversity by reducing macrophyte biomass in both seasons. The RQL analysis revealed a positive correlation among the biomass of macrophytes, density of predators and number of small- and medium-sized animals. This suggests that the decrease in macrophyte biomass may affect the available refuges and biological interactions by affecting predators and small and medium body sizes. These findings emphasise the importance of macrophytes in sustaining a unique functional trait composition of macroinvertebrates in stream ecosystems. Although afforestation did not influence substrate types, they positively affect functional diversity. Macroinvertebrate functional traits are effective indicators of ecological degradation in streams affected by <i>Eucalyptus</i> afforestation.</p><h3>Graphical abstract</h3><div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":55489,"journal":{"name":"Aquatic Sciences","volume":"87 1","pages":""},"PeriodicalIF":2.0,"publicationDate":"2024-11-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142664426","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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}
引用次数: 0
Diurnal variations in greenhouse gas diffusive emissions from a river covered with submerged macrophytes: environmental and biotic driving factors 被水下大型植物覆盖的河流中温室气体扩散排放的昼夜变化:环境和生物驱动因素
IF 2 3区 环境科学与生态学
Aquatic Sciences Pub Date : 2024-11-14 DOI: 10.1007/s00027-024-01131-5
Haoyu Wang, Rong Wu, Deshou Cun, Yi Zhang, Yukun Hou, Junjun Chang
{"title":"Diurnal variations in greenhouse gas diffusive emissions from a river covered with submerged macrophytes: environmental and biotic driving factors","authors":"Haoyu Wang,&nbsp;Rong Wu,&nbsp;Deshou Cun,&nbsp;Yi Zhang,&nbsp;Yukun Hou,&nbsp;Junjun Chang","doi":"10.1007/s00027-024-01131-5","DOIUrl":"10.1007/s00027-024-01131-5","url":null,"abstract":"<div><p>Rivers are globally important sources of carbon emissions, but the diurnal pattern of greenhouse gas (GHG) emissions from rivers colonized with submerged macrophytes has rarely been explored. We determined the dissolved concentrations and diffusive fluxes of CO<sub>2</sub>, CH<sub>4</sub>, and N<sub>2</sub>O from a river covered with submerged macrophytes under different meteorological conditions (i.e., nighttime, cloudy, and sunny daytime) over a continuous 36-h period. Overall, the river functioned as a CO<sub>2</sub> sink during the daytime, while it transitioned to a CO<sub>2</sub> source at nighttime, primarily because of diurnal variations in plant metabolisms. No similar diurnal fluctuations in CH<sub>4</sub> or N<sub>2</sub>O emissions were detected, and the highest fluxes of CH<sub>4</sub> or N<sub>2</sub>O were measured during sunny daytime. In total, the river emitted more carbon at nighttime, with CH<sub>4</sub> contributing most to the total emissions on the basis of a CO<sub>2</sub> equivalent. Dissolved organic matter (DOM) in the river, whose properties were potentially modulated by submerged macrophytes, considerably influenced GHG emissions. Distinct dissimilarities were observed in the microbial communities inhabiting the river sediment and biofilms on plant leaves. Microbial communities in the sediment played more important roles in biogeochemical cycles, while the regulatory effects of epiphytic microbiota on GHG emissions should not be ignored. Multiple regression and structural equation modeling analyses revealed that the dissolved oxygen concentration, temperature, humification index (HIX) of DOM, and NH<sub>4</sub><sup>+</sup>–N concentration significantly influenced CO<sub>2</sub> diffusive fluxes, while CH<sub>4</sub> dynamics were predominantly influenced by DOM properties. Salinity, HIX, NH<sub>4</sub><sup>+</sup>-N concentration, and microbial consortia were the predominant factors influencing N<sub>2</sub>O emissions.</p></div>","PeriodicalId":55489,"journal":{"name":"Aquatic Sciences","volume":"87 1","pages":""},"PeriodicalIF":2.0,"publicationDate":"2024-11-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142636660","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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}
引用次数: 0
Tolerance of neonates of freshwater snails to starvation and desiccation and its relationship to invasiveness 淡水蜗牛幼体对饥饿和干燥的耐受性及其与入侵的关系
IF 2 3区 环境科学与生态学
Aquatic Sciences Pub Date : 2024-11-14 DOI: 10.1007/s00027-024-01133-3
Rocío Pilar Amondarain, Nicolás Eduardo Tamburi, Pablo Rafael Martín
{"title":"Tolerance of neonates of freshwater snails to starvation and desiccation and its relationship to invasiveness","authors":"Rocío Pilar Amondarain,&nbsp;Nicolás Eduardo Tamburi,&nbsp;Pablo Rafael Martín","doi":"10.1007/s00027-024-01133-3","DOIUrl":"10.1007/s00027-024-01133-3","url":null,"abstract":"<div><p>Biological invasions threaten biodiversity and cause severe ecological and socioeconomic impacts. Freshwater snails are very diverse and many became invasive or have the potential to do so. Studies on the relationship between bioecological traits and invasiveness are needed to prevent new invasions. The tolerance to environmental stressors of the neonate, one of the most vulnerable ontogenetic phases, may be an important component of invasiveness in freshwater snails. We hypothesize that tolerance of neonates to environmental stressors increases the chances of population establishment and persistence and hence of becoming an invader. We predict that the neonates of invasive freshwater snails will show higher survival under starvation and desiccation than those of non-invasive ones and tested this experimentally for three species of each type. We also estimated neonate volume as a proxy of tolerance. We found that the desiccation stress was more severe than the starvation one. The tolerance to starvation of two of the invasive species (<i>Melanoides tuberculata</i> and <i>Pomacea canaliculata</i>) was much higher than that of remaining species but the pattern was less clear for desiccation, which was more directly related to neonate volume. None of the non-invasive species showed high tolerance to these stressors and the invasive <i>Physella acuta</i> groups with them in this regard. On the whole our prediction about the relationship between neonate tolerance and invasiveness stands for five out of the six species tested, indicating that the tolerance of neonates of freshwater snails merits more research effort on other stressors to gain a sounder comprehension of their invasiveness.</p></div>","PeriodicalId":55489,"journal":{"name":"Aquatic Sciences","volume":"87 1","pages":""},"PeriodicalIF":2.0,"publicationDate":"2024-11-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142636661","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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}
引用次数: 0
Fish assemblage structure and functional guild composition of Matla Estuary, Indian Sundarbans 印度孙德尔本斯马特拉河口的鱼群结构和功能区组成
IF 2 3区 环境科学与生态学
Aquatic Sciences Pub Date : 2024-11-12 DOI: 10.1007/s00027-024-01140-4
Rinchen Nopu Bhutia, Dayal Devadas, Kiranya Bella, Giri Bhavan Sreekanth, Asha Taterao Landge, Ashok Kumar Jaiswar, Geetanjali Deshmukhe, Uttam Kumar Mandal, Dhiman Burman
{"title":"Fish assemblage structure and functional guild composition of Matla Estuary, Indian Sundarbans","authors":"Rinchen Nopu Bhutia,&nbsp;Dayal Devadas,&nbsp;Kiranya Bella,&nbsp;Giri Bhavan Sreekanth,&nbsp;Asha Taterao Landge,&nbsp;Ashok Kumar Jaiswar,&nbsp;Geetanjali Deshmukhe,&nbsp;Uttam Kumar Mandal,&nbsp;Dhiman Burman","doi":"10.1007/s00027-024-01140-4","DOIUrl":"10.1007/s00027-024-01140-4","url":null,"abstract":"<div><p>The fish assemblage and functional guild composition of Matla estuary (ME), Indian Sundarbans, was studied across different estuarine reaches and seasons for the first time based on spatial and temporal data. A total of 57 finfish species belonging to 15 orders and 34 families were recorded during the study period from August 2022 to July 2023 along ME. The number of species recorded (<i>n</i>) exhibited a declining trend from the lower to upper reaches and was highest during the monsoon season (<i>n</i> = 53) and lowest during pre-monsoon (<i>n</i> = 40). The classification of fishes into guild resulted in seven estuarine use guilds and six feeding guilds. The composition of fish guilds exhibited variation based on site and season. Among estuarine use guilds, marine migrants (<i>n</i> = 28) and marine stragglers (<i>n</i> = 15) were the most prominent categories throughout the sample sites and seasons, while piscivores (<i>n</i> = 30) were the dominant feeding guild throughout the sites and seasons. This study indicates low record of fish diversity, particularly true estuarine and freshwater species. Assessing patterns in the spatial and temporal distribution of estuarine species, as well as variations in their fish diversity and trophic guilds, improves our understanding of the species’ ecological functioning and contributes to our understanding of the effects of anthropogenic stressors on the species for the conservation and management of fishes of Matla estuary.</p></div>","PeriodicalId":55489,"journal":{"name":"Aquatic Sciences","volume":"87 1","pages":""},"PeriodicalIF":2.0,"publicationDate":"2024-11-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142600724","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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}
引用次数: 0
Influence of water source on alpine stream community structure: linking morphological and metabarcoding approaches 水源对高山溪流群落结构的影响:将形态学方法与代谢编码方法联系起来
IF 2 3区 环境科学与生态学
Aquatic Sciences Pub Date : 2024-11-12 DOI: 10.1007/s00027-024-01134-2
Daniel L. Preston, Scott Hotaling, Isabella M. Errigo, Paul B. Frandsen, Taylor L. Price, Trinity L. Hamilton, Kurt E. Anderson, Samuel E. Yevak, Jennifer F. Morse
{"title":"Influence of water source on alpine stream community structure: linking morphological and metabarcoding approaches","authors":"Daniel L. Preston,&nbsp;Scott Hotaling,&nbsp;Isabella M. Errigo,&nbsp;Paul B. Frandsen,&nbsp;Taylor L. Price,&nbsp;Trinity L. Hamilton,&nbsp;Kurt E. Anderson,&nbsp;Samuel E. Yevak,&nbsp;Jennifer F. Morse","doi":"10.1007/s00027-024-01134-2","DOIUrl":"10.1007/s00027-024-01134-2","url":null,"abstract":"<div><p>Alpine streams support unique biodiversity because of their isolation in the river network and harsh environmental conditions. Variation in water sources to alpine streams are an important driver of benthic community structure; however, studies with long-term data on stream abiotic characteristics and biological communities remain relatively rare. This is especially true for very high elevations where effects of climate change will be most pronounced. We used a combination of morphological and metabarcoding approaches to characterize benthic communities at nine locations within a high elevation catchment (~ 3200 to 3700 m) in the Southern Rocky Mountains, USA. Survey sites included ephemeral and permanent streams dominated by glacier meltwater, snowmelt, lake outflows, and mixed-source waters. Discharge, water temperature, conductivity, pH, total dissolved nitrogen, and total dissolved phosphorus differed between water source types. Environmental differences between source water types reflected their position in the catchment, the influence of subsurface ice meltwater on nitrogen and ions, and the biological activity and stabilizing effects of lakes. In total, we detected 130 macroinvertebrate taxa (52 via morphology and 99 via metabarcoding). Macroinvertebrate composition was more strongly correlated with stream permanence and conductivity than with water temperature or nutrient availability. Glacial and snowmelt-fed streams were dominated by Chironomidae (especially Diamesinae) and Oligochaeta, with increasing richness of Plecoptera, Ephemeroptera, and Trichoptera at the lake-outlet and mixed-source sites. Lake outlets showed the highest beta diversity, with unique communities dominated by various filter feeders (Simuliidae and Sphaeriidae). Alpha diversity was similar at the glacial, snowmelt, and lake outlet sites, but increased at the downstream mixed-source sites which had proportionally more non-dipteran taxa. Our results support the idea that distinct source waters have unique environmental conditions, leading to variation in their community structure. These results provide motivation for conservation efforts that protect a diversity of alpine stream types within and between catchments.</p></div>","PeriodicalId":55489,"journal":{"name":"Aquatic Sciences","volume":"87 1","pages":""},"PeriodicalIF":2.0,"publicationDate":"2024-11-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142600726","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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}
引用次数: 0
Do diatom and nematode assemblages reflect the same ecological status in a tropical eutrophic reservoir? 硅藻和线虫的组合是否反映了热带富营养化水库的相同生态状况?
IF 2 3区 环境科学与生态学
Aquatic Sciences Pub Date : 2024-11-10 DOI: 10.1007/s00027-024-01137-z
Thanh Luu Pham, Thai Thanh Tran, Thi Hoang Yen Tran, Thi My Yen Nguyen, Xuan Dong Nguyen, Manh Ha Bui, Tan Duc Nguyen, Thanh Son Dao, Vu Thanh Nguyen
{"title":"Do diatom and nematode assemblages reflect the same ecological status in a tropical eutrophic reservoir?","authors":"Thanh Luu Pham,&nbsp;Thai Thanh Tran,&nbsp;Thi Hoang Yen Tran,&nbsp;Thi My Yen Nguyen,&nbsp;Xuan Dong Nguyen,&nbsp;Manh Ha Bui,&nbsp;Tan Duc Nguyen,&nbsp;Thanh Son Dao,&nbsp;Vu Thanh Nguyen","doi":"10.1007/s00027-024-01137-z","DOIUrl":"10.1007/s00027-024-01137-z","url":null,"abstract":"<div><p>It remains uncertain whether diatom and nematode assemblages can reflect the same ecological status in eutrophic reservoirs. To address this uncertainty, we collected diatom and nematode assemblages and measured environmental variables in the tropical eutrophic Tri An Reservoir (TAR) in Vietnam. We assessed the ecological status of each community using various biological metrics, including the Shannon-Weiner diversity index (H′), the Trophic Diatom Index (TDI), and the index of trophic diversity (ITD) of nematodes. Multivariate direct gradient analysis was conducted to determine the environmental variables influencing the dominant diatom and nematode species. We then conducted a nonparametric permutational analysis of variance with two fixed factors to assess differences in all biological variables across communities. The analysis had a cross-sectional design that incorporated “station” and “season” as factors. Our findings indicated that the surface water in the TAR ranges from eutrophic to hypertrophic. Based on these TDI values, we classified the ecological and trophic status of the TAR into two groups: meso-eutrophic and eutrophic. However, the ITD of the nematodes suggested that the ecological status varied from poor to moderate or high. Our findings suggest inconsistency between two bioindicator groups in their ability to reflect surface water quality in the TAR. This study highlights the potential of using the TDI of diatoms and emphasizes the need to revise the H′ and ITD indices of nematodes if they are to be incorporated into lake monitoring programs for assessing ecological status.</p></div>","PeriodicalId":55489,"journal":{"name":"Aquatic Sciences","volume":"87 1","pages":""},"PeriodicalIF":2.0,"publicationDate":"2024-11-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142598980","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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}
引用次数: 0
Ecosystem services of urban rivers: a systematic review 城市河流的生态系统服务:系统回顾
IF 2 3区 环境科学与生态学
Aquatic Sciences Pub Date : 2024-11-08 DOI: 10.1007/s00027-024-01138-y
Maria Carolina Sousa, Rita Martins, Nuno Eduardo Simões, Maria João Feio
{"title":"Ecosystem services of urban rivers: a systematic review","authors":"Maria Carolina Sousa,&nbsp;Rita Martins,&nbsp;Nuno Eduardo Simões,&nbsp;Maria João Feio","doi":"10.1007/s00027-024-01138-y","DOIUrl":"10.1007/s00027-024-01138-y","url":null,"abstract":"<div><p>The multifaceted threats to global freshwater ecosystems, especially in urban environments, impact hydrological cycles, flora and fauna, habitats and ecosystem processes. While these ecosystems can potentially offer important services to the urban populations by providing natural areas inside cities, the constraints imposed by urbanisation and a high population density may result in the loss of those benefits. Thus, it is important to adopt a quantitative approach to assess the value of urban freshwater ecosystem services in order to enable strategic urban planning that balances urban development with the protection of these ecosystems. We have therefore performed a systematic review of Scopus database publications from 2006 to 2022 that focused on provisioning, regulating and maintenance, as well as cultural services, provided by urban river ecosystems. The screening identified 118 papers, 43% of which focused on urban stream ecosystems (stream and/or riparian area). For provisioning services, indicators were related to water and food supply, while regulation indicators were linked to water quality and flood mitigation; cultural services were mainly related to physical interactions with the ecosystems, education and aesthetic experiences. The economic valuation of urban river ecosystem services is the subject of study in 19% of the identified articles, mainly in relation to potential river restoration. Finally, 18% of articles incorporated public opinions of stakeholders and citizens, underlining the significant role of their input in understanding and managing urban river ecosystems. More studies on urban streams are needed, and standardising indicators and promoting greater citizen involvement in the evaluation of ecosystem services are challenges that remain to be overcome.</p></div>","PeriodicalId":55489,"journal":{"name":"Aquatic Sciences","volume":"87 1","pages":""},"PeriodicalIF":2.0,"publicationDate":"2024-11-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s00027-024-01138-y.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142596055","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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}
引用次数: 0
Ecological quality of snowmaking reservoirs in the Alps and management perspectives 阿尔卑斯山造雪水库的生态质量和管理前景
IF 2 3区 环境科学与生态学
Aquatic Sciences Pub Date : 2024-11-07 DOI: 10.1007/s00027-024-01136-0
Benjamin Gerfand, Florent Arthaud, André Evette, Baptiste Testi, Laurent Peyras, Stéphanie Gaucherand
{"title":"Ecological quality of snowmaking reservoirs in the Alps and management perspectives","authors":"Benjamin Gerfand,&nbsp;Florent Arthaud,&nbsp;André Evette,&nbsp;Baptiste Testi,&nbsp;Laurent Peyras,&nbsp;Stéphanie Gaucherand","doi":"10.1007/s00027-024-01136-0","DOIUrl":"10.1007/s00027-024-01136-0","url":null,"abstract":"<div><p>Alpine freshwater ecosystems are biodiversity hotspots providing key ecosystem services. These ecosystems face threats from climate change and anthropogenic activities. Snowmaking reservoirs have emerged across the globe as a response to snow rarefaction and increasing winter tourism, and despite efforts to assess their environmental impact, our understanding of their ecological quality after being built remains limited. In the present study, we evaluated representative snowmaking reservoirs in French Alpine counties (départements) and their potential to serve as aquatic ecosystems. A comprehensive approach was employed encompassing ski resort surveys and geographical analyses of 136 reservoirs, complemented by investigations into abiotic characteristics and biodiversity surveys in 28 sampled reservoirs. The findings indicated that the multiplication and proximity of these reservoirs to freshwater habitats make them components of the alpine aquatic landscape. Terrestrial vegetation, although sparse, was commonly present on the banks of these reservoirs, but they systematically lacked aquatic vegetation. Faunal diversity appeared to be limited, and consisted of both indigenous and non-native species. Comparisons of snowmaking reservoirs with mountain lakes revealed similarities in water quality, implying the potential for similar oligotrophy and biotic communities. However, differences in conductivity, alkalimetry and pH were observed, possibly linked to distinct differences in water sources or retention times. Snowmaking reservoirs displayed unique habitat features through their structure and functioning. Although these reservoirs are attractive in terms of their biodiversity, there are concerns regarding their capacity to support species due to observations of drowned mammals and stranded amphibians and dragonflies. Our observations reveal potential ecological traps in the design, exploitation and uses of snowmaking reservoirs. Recommendations are made to enhance existing structures and future designs by increasing ecological processes and better protecting biodiversity.</p></div>","PeriodicalId":55489,"journal":{"name":"Aquatic Sciences","volume":"87 1","pages":""},"PeriodicalIF":2.0,"publicationDate":"2024-11-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142595416","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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}
引用次数: 0
Modeling future dissolved oxygen and temperature profiles in small temperate lake trout lakes 温带小湖泊鳟鱼湖未来溶解氧和温度曲线建模
IF 2 3区 环境科学与生态学
Aquatic Sciences Pub Date : 2024-11-06 DOI: 10.1007/s00027-024-01139-x
Aidin Jabbari, Leon Boegman, Lewis A. Molot
{"title":"Modeling future dissolved oxygen and temperature profiles in small temperate lake trout lakes","authors":"Aidin Jabbari,&nbsp;Leon Boegman,&nbsp;Lewis A. Molot","doi":"10.1007/s00027-024-01139-x","DOIUrl":"10.1007/s00027-024-01139-x","url":null,"abstract":"<div><p>Climate warming has been projected to alter the habitat ranges of cold-water fish species. To numerically model these changes, a simple dissolved oxygen (DO) sub-model has been embedded into a one-dimensional thermodynamic lake-tile model that simulates small unresolved lakes within the land surface scheme of a climate model. To account for the lack of monitoring data for most small lakes, the components of the DO budget were parameterized as functions of lake surface area and depth, a light extinction coefficient and meteorological variables prescribed by the climate model. The model predicted the temperature and DO profiles with root-mean-square error &lt; 1.5 °C and &lt; 3 mg l<sup>−1</sup>, respectively, based on 38 years of data from two Canadian Shield lakes. For the smaller lake (~ 71 ha), simulations of future (2071–2100) lake conditions show a warming-induced reduction in the frequency of seasonal lake turnover and consequently prolonged periods of hypolimnetic hypoxia. This will reduce the end-of-summer volume weighted hypolimnetic dissolved oxygen concentration (VWHO) from ~ 6 mg l<sup>−1</sup> (1978–2005) to &lt; 3.6 mg l<sup>−1</sup> (2071–2100), below the 7 mg l<sup>−1</sup> standard for lake trout. As a result, the height of water column with temperatures and DO concentrations suitable for lake trout will decrease from ~ 17 m to &lt; 6 m. For the larger lake (~ 614 ha), VWHO &lt; 5 mg l<sup>−1</sup> is predicted in the future; however, vertical mixing during turnover events and warming-induced shallowing of the thermocline depth will combine to increase the height of the suitable water column from ~ 16 m to &gt; 18 m in the future. Hence, the lake trout populations in smaller temperate lakes may be at greater risk for earlier extirpation than in larger lakes.</p></div>","PeriodicalId":55489,"journal":{"name":"Aquatic Sciences","volume":"87 1","pages":""},"PeriodicalIF":2.0,"publicationDate":"2024-11-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142595485","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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}
引用次数: 0
Migration patterns, habitat use and genetic origins of sea trout (Salmo trutta) in Norfolk chalk streams: implications for management of a mixed stock fishery 诺福克白垩溪流中海鳟鱼(Salmo trutta)的迁移模式、栖息地利用和遗传起源:对混种渔业管理的影响
IF 2 3区 环境科学与生态学
Aquatic Sciences Pub Date : 2024-11-03 DOI: 10.1007/s00027-024-01135-1
Adam T. Piper, Paula J. Rosewarne, Dorte Bekkevold, Jonathan Grey, Abbie Nye, Rosalind M. Wright
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