Inland Waters最新文献

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Nitrogen and phosphorus removal by fishing in a large freshwater lake (Lake Balaton, Hungary) 在一个大型淡水湖(匈牙利巴拉顿湖)捕鱼去除氮和磷
IF 3.1 3区 环境科学与生态学
Inland Waters Pub Date : 2022-01-14 DOI: 10.1080/20442041.2021.1991754
G. Boros
{"title":"Nitrogen and phosphorus removal by fishing in a large freshwater lake (Lake Balaton, Hungary)","authors":"G. Boros","doi":"10.1080/20442041.2021.1991754","DOIUrl":"https://doi.org/10.1080/20442041.2021.1991754","url":null,"abstract":"ABSTRACT Fish biomass can serve as a large temporary sink of limiting nutrients, and thus fishing may represent an important anthropogenic nutrient efflux from aquatic ecosystems. However, the significance of this type of nutrient removal has rarely been evaluated for freshwater lakes. The aim of this study was to reveal how fishing contributed to the nutrient output from Lake Balaton (Hungary), the largest lake in Central Europe. The results show that net fish removal (the difference between the removed and stocked fish biomass) returned to land on average (standard deviation) 3.1 (0.3) tonnes of phosphorus (P) and 10.2 (1.1) tonnes of nitrogen (N) per year from Lake Balaton between 2017 and 2019, which is equivalent to a removal rate of 0.05 (0) kg ha−1 yr−1 P and 0.17 (0.02) kg ha−1 yr−1 N. These rates corresponded to 7.5% (1.5%) of the annual external P and 1.4% (0.6%) of the annual N loads from the inflowing watercourses. These findings suggest that fish harvest was moderately effective at offsetting external loading during the observed period. To mitigate the ongoing within-lake nutrient accumulation, more intensive selective fishing should be promoted in Lake Balaton, along with reconsideration of regulations on fishing practices.","PeriodicalId":49061,"journal":{"name":"Inland Waters","volume":"12 1","pages":"277 - 282"},"PeriodicalIF":3.1,"publicationDate":"2022-01-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48691772","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: 2
Imperfect slope measurements drive overestimation in a geometric cone model of lake and reservoir depth 不完善的坡度测量导致湖泊和水库深度几何锥模型的高估
IF 3.1 3区 环境科学与生态学
Inland Waters Pub Date : 2022-01-14 DOI: 10.1080/20442041.2021.2006553
Jemma Stachelek, Patrick J. Hanly, P. Soranno
{"title":"Imperfect slope measurements drive overestimation in a geometric cone model of lake and reservoir depth","authors":"Jemma Stachelek, Patrick J. Hanly, P. Soranno","doi":"10.1080/20442041.2021.2006553","DOIUrl":"https://doi.org/10.1080/20442041.2021.2006553","url":null,"abstract":"ABSTRACT Lake and reservoir (waterbody) depth is a critical characteristic that influences many important ecological processes. Unfortunately, depth measurements are labor-intensive to gather and are only available for a small fraction of waterbodies globally. Therefore, scientists have tried to predict depth from characteristics easily obtained for all waterbodies, such as surface area or the slope of the surrounding land. One approach for predicting waterbody depth simulates basins using a geometric cone model where the nearshore land slope and distance to the center of the waterbody are assumed to be representative proxies for in-lake slope and distance to the deepest point respectively. We tested these assumptions using bathymetry data from ∼5000 lakes and reservoirs to examine whether differences in waterbody type or shape influenced depth prediction error. We found that nearshore land slope was not representative of in-lake slope, and using it for prediction increases error substantially relative to models using true in-lake slope for all waterbody types and shapes. Predictions were biased toward overprediction in concave waterbodies (i.e., bowl-shaped; up to 18% of the study population) and reservoir waterbodies (up to 30% of the study population). Despite this systematic overprediction, model errors were fewer (in absolute and relative terms, irrespective of any specific slope covariate) for concave than convex waterbodies, suggesting the geometric cone model is an adequate representation of depth for these waterbodies. But because convex waterbodies are far more common (>72% of our study population), minimizing overall depth prediction error remains a challenge.","PeriodicalId":49061,"journal":{"name":"Inland Waters","volume":"12 1","pages":"283 - 293"},"PeriodicalIF":3.1,"publicationDate":"2022-01-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43685529","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: 3
Acknowledgements - Volume 12, Issue 1 致谢-第12卷,第1期
IF 3.1 3区 环境科学与生态学
Inland Waters Pub Date : 2022-01-02 DOI: 10.1080/20442041.2022.2050099
{"title":"Acknowledgements - Volume 12, Issue 1","authors":"","doi":"10.1080/20442041.2022.2050099","DOIUrl":"https://doi.org/10.1080/20442041.2022.2050099","url":null,"abstract":"","PeriodicalId":49061,"journal":{"name":"Inland Waters","volume":" ","pages":"ii - ii"},"PeriodicalIF":3.1,"publicationDate":"2022-01-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46090071","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
Mustering the troops toward preventative management in lakes 集结部队进行湖泊的预防性管理
IF 3.1 3区 环境科学与生态学
Inland Waters Pub Date : 2022-01-02 DOI: 10.1080/20442041.2021.2022433
B. Spears, M. Lürling, D. Hamilton
{"title":"Mustering the troops toward preventative management in lakes","authors":"B. Spears, M. Lürling, D. Hamilton","doi":"10.1080/20442041.2021.2022433","DOIUrl":"https://doi.org/10.1080/20442041.2021.2022433","url":null,"abstract":"Mustering the troops toward preventative management in lakes Bryan M. Spears , Miquel Lürling , and David P. Hamilton a,d UK Centre for Ecology & Hydrology, Penicuik, UK; School of GeoSciences, University of Edinburgh, Edinburgh, UK; Aquatic Ecology & Water Quality Management Group, Wageningen University, Wageningen, the Netherlands; Australian Rivers Institute, Griffith University, Nathan, Australia","PeriodicalId":49061,"journal":{"name":"Inland Waters","volume":"12 1","pages":"1 - 7"},"PeriodicalIF":3.1,"publicationDate":"2022-01-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43326292","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: 2
Assessing the long-term efficacy of internal loading management to control eutrophication in Lake Rauwbraken 评估内部负荷管理控制Rauwbraken湖富营养化的长期效果
IF 3.1 3区 环境科学与生态学
Inland Waters Pub Date : 2021-12-13 DOI: 10.1080/20442041.2021.1969189
Frank van Oosterhout, Said Yasseri, N. Noyma, V. Huszar, Marcelo Manzi Marinho, M. Mucci, G. Waajen, M. Lürling
{"title":"Assessing the long-term efficacy of internal loading management to control eutrophication in Lake Rauwbraken","authors":"Frank van Oosterhout, Said Yasseri, N. Noyma, V. Huszar, Marcelo Manzi Marinho, M. Mucci, G. Waajen, M. Lürling","doi":"10.1080/20442041.2021.1969189","DOIUrl":"https://doi.org/10.1080/20442041.2021.1969189","url":null,"abstract":"ABSTRACT Lake Rauwbraken was impacted by eutrophication caused by diffuse external phosphorus (P) loads (total 1.21 mg m−2 d−1, estimated in 2008). Over 40 years, this load built up a legacy pool in the sediments, resulting in 6.82 mg m−2 d−1 PO4-P internal load (estimated in 2008), causing cyanobacterial blooms and swimming bans. To address the internal load in this lake, a low dose treatment of flocculant (polyaluminium chloride) combined with a solid phase phosphate fixative (lanthanum-modified bentonite) was applied in 2008. We examined the chemical and ecological responses to this treatment to demonstrate the efficacy of controlling internal loading without reducing external loading. Based on 2 years pre- and 10 years post-treatment monitoring, the mean Secchi disk depth (3.5–4.0 m) and the hypolimnetic oxygen concentration (0.86–4.55 mg L−1) increased while decreases occurred in turbidity (5.4 to 2.2 NTU), chlorophyll a (16.5 to 5.5 µg L−1), contribution of cyanobacteria (64% to 17% of chlorophyll a), total phosphorus (134 to 14 µg L−1), and total nitrogen (0.96 to 0.50 mg L−1). The treatment reduced the PO4-P release from sediment under anoxic conditions from 15.1 to 1.7 mg m−2 d−1 post-treatment in 2008, 2.3 mg m−2 d−1 in 2011, and 4.7 mg m−2 d−1 in 2013. Post-treatment, submerged macrophytes reached high coverage in 2008 and 2009. Longer term, post-treatment macrophyte cover was reduced. The lake is returning to a eutrophic state as a result of ongoing external P loads 10 years following the control of internal loading.","PeriodicalId":49061,"journal":{"name":"Inland Waters","volume":"12 1","pages":"61 - 77"},"PeriodicalIF":3.1,"publicationDate":"2021-12-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46081633","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: 9
Controlling water hyacinth (Eichhornia crassipes (Mart.) Solms): a proposed framework for preventative management 防治水葫芦(Eichhornia crassipes, Mart.)(Solms):预防性管理的建议框架
IF 3.1 3区 环境科学与生态学
Inland Waters Pub Date : 2021-12-13 DOI: 10.1080/20442041.2021.1965444
L. May, A. Dobel, C. Ongore
{"title":"Controlling water hyacinth (Eichhornia crassipes (Mart.) Solms): a proposed framework for preventative management","authors":"L. May, A. Dobel, C. Ongore","doi":"10.1080/20442041.2021.1965444","DOIUrl":"https://doi.org/10.1080/20442041.2021.1965444","url":null,"abstract":"ABSTRACT Over the last century, water hyacinth, Eichhornia crassipes (Mart.) Solms, has invaded freshwater systems in more than 50 countries, causing changes in biodiversity and widespread ecological damage. It also disrupts fisheries, navigation routes, power generation, and water supply. Although water hyacinth has invaded all tropical and subtropical countries and some parts of the Mediterranean basin, recent climate change models suggest that its distribution may soon expand into higher latitudes as temperatures rise within Europe, unless effective preventative management measures are put in place. In this paper, we explore the potential ecological and socioeconomic impacts of water hyacinth invasion using well-documented case studies from Lake Victoria. We also consider the relative effectiveness of biological, chemical, and mechanical control measures on established populations. We conclude that water hyacinth is almost impossible to remove once established, and that controlling its spread into new areas is probably the most cost-effective way of reducing its impact. We propose a framework for the preventative management of this weed by combining the use of environmental DNA as an early warning system with heightened biosecurity to prevent accidental introductions and the physical removal of invasive plants before they become established. We also recommend that nutrient concentrations be lowered in waterbodies to reduce their susceptibility to water hyacinth invasion and reduce its growth rate if introduced accidentally.","PeriodicalId":49061,"journal":{"name":"Inland Waters","volume":"12 1","pages":"163 - 172"},"PeriodicalIF":3.1,"publicationDate":"2021-12-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44398824","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: 7
Simulated impacts of climate change on Lake Simcoe water quality 气候变化对辛科湖水质的模拟影响
IF 3.1 3区 环境科学与生态学
Inland Waters Pub Date : 2021-12-08 DOI: 10.1080/20442041.2021.1969190
Hadiseh Bolkhari, L. Boegman, Ralph E. H. Smith
{"title":"Simulated impacts of climate change on Lake Simcoe water quality","authors":"Hadiseh Bolkhari, L. Boegman, Ralph E. H. Smith","doi":"10.1080/20442041.2021.1969190","DOIUrl":"https://doi.org/10.1080/20442041.2021.1969190","url":null,"abstract":"ABSTRACT Lake Simcoe has undergone eutrophication and hypoxia since the 1960s. Climate change, leading to enhanced summer thermal stratification, has been identified as a key stressor. In this study, we modeled the impacts of climate change on hydrodynamics and biogeochemistry in Lake Simcoe by applying a 1-dimensional (vertical) model forced with A2 and B1 scenario outputs from a global climate model over 2000–2100. The model was calibrated in 2008 and validated in 2009, with maximum root mean square error (RMSE) of modelled temperature between 1.5 and 3.0 °C and dissolved oxygen RMSE between 0.5 and 2.5 mg L−1. Phytoplankton chlorophyll a was simulated with RMSE between 1.25 µg L−1 (large diatoms) and ∼0.5 µg L−1 (other groups). Interannual variability in spring water temperature and length of stratification were related to changes in the North Atlantic and Artic Oscillation indices, respectively. Under A2 and B1 forcing, the duration of stratification will increase by 45 and 38 days in summer between spring and fall turnover, respectively. The extended stratified period leads to a reduction in hypolimnetic dissolved oxygen from 3–7 to <3 mg L−1, thereby reducing the quality of cold-water fish habitat and increasing internal phosphorus loading from the benthos. These internal loads, combined with increased water temperatures, lead to increased cyanobacteria concentrations, beginning around 2070.","PeriodicalId":49061,"journal":{"name":"Inland Waters","volume":"12 1","pages":"215 - 231"},"PeriodicalIF":3.1,"publicationDate":"2021-12-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49357920","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
High-frequency monitoring enables operational opportunities to reduce the dissolved organic carbon (DOC) load in Germany’s largest drinking water reservoir 高频监测为降低德国最大的饮用水水库的溶解有机碳(DOC)负荷提供了操作机会
IF 3.1 3区 环境科学与生态学
Inland Waters Pub Date : 2021-12-07 DOI: 10.1080/20442041.2021.1987796
Qing Zhan, X. Kong, K. Rinke
{"title":"High-frequency monitoring enables operational opportunities to reduce the dissolved organic carbon (DOC) load in Germany’s largest drinking water reservoir","authors":"Qing Zhan, X. Kong, K. Rinke","doi":"10.1080/20442041.2021.1987796","DOIUrl":"https://doi.org/10.1080/20442041.2021.1987796","url":null,"abstract":"ABSTRACT Rising dissolved organic carbon (DOC) is interfering with drinking water production. While strategies for DOC removal during water treatment have been successfully implemented, the potential for DOC load reduction by optimized reservoir operation is not yet fully explored, mainly constrained by data paucity on real-time DOC dynamics. In this study, we utilized the emerging in situ high-frequency (HF) monitoring technique for DOC and developed a simulation–operation framework that promotes DOC mitigation in Germany’s largest drinking water reservoir. Rappbode Reservoir is embedded in a network of smaller upstream reservoirs from which Königshütte Reservoir delivers the most water but can also be operated as a bypass system. Using high-frequency monitoring of DOC concentrations and discharge at the inflows and outflows, we constructed a mass balance model that simulated the DOC dynamics in the reservoir, allowing us to explore alternative operation regimes that deliver the same amount of water but a lower DOC load. Our results show that, through rapid decision-making that enables bypassing of water with high DOC concentrations around the drinking water reservoir, the optimized operation regime is able to reduce DOC load of the drinking water reservoir by 25 ± 3%. Therefore, our proposed operational strategy to minimize DOC loading to reservoirs is promising.","PeriodicalId":49061,"journal":{"name":"Inland Waters","volume":"12 1","pages":"245 - 260"},"PeriodicalIF":3.1,"publicationDate":"2021-12-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46866405","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: 1
Spatial and seasonal variability of chlorophyll a in different-sized lakes across eastern China 中国东部不同大小湖泊叶绿素a的空间和季节变化
IF 3.1 3区 环境科学与生态学
Inland Waters Pub Date : 2021-11-11 DOI: 10.1080/20442041.2021.1970462
Z. Cao, J. Melack, Miao Liu, H. Duan, R. Ma
{"title":"Spatial and seasonal variability of chlorophyll a in different-sized lakes across eastern China","authors":"Z. Cao, J. Melack, Miao Liu, H. Duan, R. Ma","doi":"10.1080/20442041.2021.1970462","DOIUrl":"https://doi.org/10.1080/20442041.2021.1970462","url":null,"abstract":"ABSTRACT Chlorophyll a (Chl-a) in lakes is an indicator of phytoplankton biomass and widely employed in lake management. Here, we used Chl-a data from 586 lakes ≥1 km2 in eastern China from 2013 to 2018 derived from the Operational Land Imager (OLI) onboard the Landsat-8 satellite to examine influences of climatic and anthropogenic factors on Chl-a variations among these lakes, partitioned into groups of different sizes. The results indicate that Chl-a values in small lakes (1–50 km2) were higher than those in large lakes (>50 km2), and the mean Chl-a in summer and autumn was higher than in spring and winter. Air temperature was positively correlated with the seasonal mean Chl-a in all sizes of lakes. Small lakes had a larger cropland proportion in their watersheds than large lakes, suggesting that the higher cropland proportion of the land cover contributed to the high Chl-a of these lakes. This research highlights the merit of high spatial resolution remote sensing for monitoring lakes in a regional context and indicates that the management of lakes could benefit from controlling agricultural activities in their watersheds.","PeriodicalId":49061,"journal":{"name":"Inland Waters","volume":"12 1","pages":"205 - 214"},"PeriodicalIF":3.1,"publicationDate":"2021-11-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47352457","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: 4
Serving many masters at once: a framework for assessing ecosystem services delivered by quarry lakes 同时服务多个主人:一个评估采石场湖泊提供的生态系统服务的框架
IF 3.1 3区 环境科学与生态学
Inland Waters Pub Date : 2021-11-08 DOI: 10.1080/20442041.2021.1944765
L. Seelen, S. Teurlincx, Margaret R. Armstrong, M. Lürling, E. van Donk, Lisette N. de Senerpont Domis
{"title":"Serving many masters at once: a framework for assessing ecosystem services delivered by quarry lakes","authors":"L. Seelen, S. Teurlincx, Margaret R. Armstrong, M. Lürling, E. van Donk, Lisette N. de Senerpont Domis","doi":"10.1080/20442041.2021.1944765","DOIUrl":"https://doi.org/10.1080/20442041.2021.1944765","url":null,"abstract":"ABSTRACT Globally the number of relatively deep, isolated lakes is increasing because of sand, gravel, or clay excavation activities. The major excavation areas are located within the delta of rivers, and thus the deep freshwater ecosystems formed upon excavation, called quarry lakes, are unique to the landscape. They are embedded in a landscape comprised of shallow, naturally formed lakes. Given that quarry lakes are by definition novel ecosystems, water managers face difficulties in optimally managing them to deliver ecosystem services using existing frameworks designed for natural ecosystems. All lakes in delta areas are subject to similar pressures such as urbanization and eutrophication, leading to shifts in biodiversity and ecosystem functioning, and ultimately changing the ecosystem services the systems can provide. We propose a framework to enable water managers to assess the provision of ecosystem services by quarry lakes based on their ecological quality. For each ecosystem service we determined threshold values of ecological quality based on available scientific literature, an extensive field survey of 51 quarry lakes in the Netherlands, or expert knowledge. To illustrate the usefulness of our approach, we applied our framework to a lake before and after a rehabilitation focused on improving the nutrient status of the waterbody. Assessing ecosystem services under varying levels of ecological health is important to initiate action from legislators, managers, and communities.","PeriodicalId":49061,"journal":{"name":"Inland Waters","volume":"12 1","pages":"121 - 137"},"PeriodicalIF":3.1,"publicationDate":"2021-11-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42511617","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: 7
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