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description Publicationkeyboard_double_arrow_right Article , Journal , Other literature type 2018Publisher:Wiley Funded by:EC | MARS, EC | AQUACROSSEC| MARS ,EC| AQUACROSST. Hein;
A. Funk;
F. Pletterbauer;W. Graf;
I. Zsuffa;G. Haidvogl;
G. Haidvogl
G. Haidvogl in OpenAIRER. Schinegger;
R. Schinegger
R. Schinegger in OpenAIREG. Weigelhofer;
G. Weigelhofer
G. Weigelhofer in OpenAIREdoi: 10.1002/rra.3243
AbstractFor centuries, rivers have experienced massive changes of their hydromorphic structures due to human activities. The Danube River, the second largest river in Europe, is a case in point for long‐term societal imprint. Resulting human‐induced pressures are a key issue for river management, aiming to improve the ecological conditions and guarantee the provision of ecosystem services. As the most international river basin in the world, the management of the Danube is particularly challenging and needs a well‐organized cooperation of 19 nations. The recent river basin management plan has identified pollution and hydromorphological alterations as most pressing problems, but it has also acknowledged newly emerging issues. In this article, we present 3 specific examples of highly relevant issues for the future river basin management of the Danube: (a) long‐term impacts in the catchment such as changes in flood patterns and potential ecological consequences; (b) complex feedback loops linking the spread of neozoa with intertwined stressor responses due to river engineering for different purposes; and (c) linkages between different assessment approaches based on European legal frameworks to analyse the specific pressures at different spatial scales. These examples highlight the need for a more integrated approach in future Danube River Basin management schemes. Furthermore, large‐scale effects such as climate change and interactions of multiple pressures need to be addressed in future management to increase resilience of the river system and to allow a sustainable ecosystem‐based management of rivers.
River Research and A... arrow_drop_down River Research and ApplicationsArticle . 2018 . Peer-reviewedData sources: European Union Open Data Portalhttp://dx.doi.org/https://doi....Other literature typeData sources: European Union Open Data Portaladd ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://beta.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.1002/rra.3243&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.euAccess RoutesGreen hybrid 44 citations 44 popularity Top 10% influence Top 10% impulse Top 10% Powered by BIP!
visibility 3visibility views 3 download downloads 3 Powered bymore_vert River Research and A... arrow_drop_down River Research and ApplicationsArticle . 2018 . Peer-reviewedData sources: European Union Open Data Portalhttp://dx.doi.org/https://doi....Other literature typeData sources: European Union Open Data Portaladd ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://beta.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.1002/rra.3243&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.eudescription Publicationkeyboard_double_arrow_right Article , Journal , Other literature type 2016Publisher:Elsevier BV Funded by:EC | MARSEC| MARSAuthors:Elisabeth Bondar-Kunze;
Stefanie Maier; Doris Schönauer; Nicolas Bahl; +1 AuthorsElisabeth Bondar-Kunze
Elisabeth Bondar-Kunze in OpenAIREElisabeth Bondar-Kunze;
Stefanie Maier; Doris Schönauer; Nicolas Bahl;Elisabeth Bondar-Kunze
Elisabeth Bondar-Kunze in OpenAIREThomas Hein;
Thomas Hein
Thomas Hein in OpenAIREpmid: 27585428
Aquatic ecosystems are generally affected by multiple stressors, and therefore, analysing single stressor responses is not appropriate to evaluate the whole range of effects on these ecosystems. We assessed the interaction effects of two strong stressors (higher flow velocity due to e.g. daily hydropeaking) and nutrient enrichment for an oligotrophic stream periphyton community. As periphyton has a rapid reproduction rate and very short life cycles, it can therefore be expected to reflect short-term impacts and sudden changes/disturbances in the environment. We measured biomass development, algal group distribution and photosynthesis efficiency during a time period of 33days in an experimental flume setting in Lunz am See (Austria). We conducted the experiment with two treatments (no hydropeaking and hydropeaking) and three nutrient enrichments (nitrate, phosphate and nitrate+phosphate enrichment) and control (no nutrient addition). The results showed a significant lower biomass development in the hydropeaking treatment (HP), compared to the no-hydropeaking treatment (NHP) in a later successional stage (day 33). Nutrient subsidy effects were not observed, because the biomass development (chlorophyll-a) of periphyton was highly diminished through the pulsed flow velocity increase. Also a negative synergistic interaction (more negative than predicted additively) was observed. Our study confirmed for periphyton communities that for different algal groups and functional guilds the same multiple stressor combination can be detrimental for one species group (e.g. chlorophyta) while beneficial for another (e.g. diatoms). We conclude for multiple stressor studies to consider the successional stage and community composition, when estimating the interaction effects of these stressors.
The Science of The T... arrow_drop_down The Science of The Total EnvironmentArticle . 2016 . Peer-reviewedLicense: Elsevier TDMData sources: Crossrefhttp://dx.doi.org/10.1016/j.sc...Other literature typeData sources: European Union Open Data Portaladd ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://beta.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.1016/j.scitotenv.2016.08.158&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.eu34 citations 34 popularity Top 10% influence Top 10% impulse Top 10% Powered by BIP!
more_vert The Science of The T... arrow_drop_down The Science of The Total EnvironmentArticle . 2016 . Peer-reviewedLicense: Elsevier TDMData sources: Crossrefhttp://dx.doi.org/10.1016/j.sc...Other literature typeData sources: European Union Open Data Portaladd ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://beta.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.1016/j.scitotenv.2016.08.158&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.eudescription Publicationkeyboard_double_arrow_right Article , Other literature type 2024Embargo end date: 08 Apr 2024 GermanyPublisher:Wiley Funded by:EC | AQUACROSS, DFG | German Centre for Integra..., EC | BIOFRESH +3 projectsEC| AQUACROSS ,DFG| German Centre for Integrative Biodiversity Research - iDiv ,EC| BIOFRESH ,DFG ,EC| DANUBE4all ,EC| SABER CULTURALAuthors:Martin Friedrichs‐Manthey;
Martin Friedrichs‐Manthey
Martin Friedrichs‐Manthey in OpenAIRESimone D. Langhans;
Simone D. Langhans
Simone D. Langhans in OpenAIREFlorian Borgwardt;
Florian Borgwardt
Florian Borgwardt in OpenAIREThomas Hein;
+4 AuthorsThomas Hein
Thomas Hein in OpenAIREMartin Friedrichs‐Manthey;
Martin Friedrichs‐Manthey
Martin Friedrichs‐Manthey in OpenAIRESimone D. Langhans;
Simone D. Langhans
Simone D. Langhans in OpenAIREFlorian Borgwardt;
Florian Borgwardt
Florian Borgwardt in OpenAIREThomas Hein;
Thomas Hein
Thomas Hein in OpenAIREHarald Kling;
Philipp Stanzel;Harald Kling
Harald Kling in OpenAIRESonja C. Jähnig;
Sonja C. Jähnig
Sonja C. Jähnig in OpenAIRESami Domisch;
Sami Domisch
Sami Domisch in OpenAIREAbstractAimRivers belong to the most threatened ecosystems on Earth. Historical anthropogenic alterations have, and future climate change will further affect rivers and the species therein. While many studies have projected climate change effects on species, little is known about the severity of these changes compared to historical alterations. Here, we used a unique 300‐year time series of hydrological and climate data to explore the vulnerability of 48 native fish species in the upper Danube River Basin to past and potential future environmental changes.LocationUpper Danube River Basins (Germany and Austria).MethodsWe applied a climate niche factor analysis and calculated species‐specific vulnerability estimates based on modelled and observed hydrological and climate data from 1800 to 2100. We compared the estimated species vulnerabilities between two historical time intervals (1800–1830 and 1900–1930) and a future time interval (2070–2100, including the two representative concentration pathways 4.5 and 8.5) to an observed reference time interval (1970–2000). In addition, we identified the main environmental drivers of species vulnerability and their change over the past 200 years and for the predicted 100 years in the future.ResultsOur results showed that (i) in the past, species vulnerability was mainly driven by changes in discharge, while (ii) future potential vulnerabilities would be due to temperature. Moreover, we found that (iii) future environmental conditions for riverine fish species driven by temperature would change at a similar magnitude as past hydrological changes, driven by anthropogenic river alterations. Future changes, projected for the RCP 4.5, would result in moderate species vulnerability, whereas for the RCP 8.5, the vulnerability for all species would substantially increase compared to the historical conditions.Main ConclusionAccounting for an extended timeline uncovers the extent of historical pressures and provides unprecedented opportunities to proactively plan conservation strategies that are necessary to address future challenges.
Diversity and Distri... arrow_drop_down Refubium - Repositorium der Freien Universität BerlinArticle . 2024License: CC BYData sources: Refubium - Repositorium der Freien Universität BerlinPublikationsserver der Humboldt-Universität zu BerlinArticle . 2024 . Peer-reviewedData sources: Publikationsserver der Humboldt-Universität zu Berlinadd ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
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For further information contact us at helpdesk@openaire.euAccess RoutesGreen gold 3 citations 3 popularity Average influence Average impulse Average Powered by BIP!
more_vert Diversity and Distri... arrow_drop_down Refubium - Repositorium der Freien Universität BerlinArticle . 2024License: CC BYData sources: Refubium - Repositorium der Freien Universität BerlinPublikationsserver der Humboldt-Universität zu BerlinArticle . 2024 . Peer-reviewedData sources: Publikationsserver der Humboldt-Universität zu Berlinadd ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
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For further information contact us at helpdesk@openaire.eudescription Publicationkeyboard_double_arrow_right Article 2023 GermanyPublisher:Elsevier BV Funded by:EC | DANUBE4allEC| DANUBE4allAuthors:Tschikof, Martin;
Tschikof, Martin
Tschikof, Martin in OpenAIREStammel, Barbara;
Weigelhofer, Gabriele; Bondar-Kunze, Elisabeth; +7 AuthorsStammel, Barbara
Stammel, Barbara in OpenAIRETschikof, Martin;
Tschikof, Martin
Tschikof, Martin in OpenAIREStammel, Barbara;
Weigelhofer, Gabriele; Bondar-Kunze, Elisabeth; Costea, Gabriela;Stammel, Barbara
Stammel, Barbara in OpenAIREPusch, Martin;
Srdević, Zorica;Pusch, Martin
Pusch, Martin in OpenAIREBenka, Pavel;
Vizi, David Bela; Borgs, Tim;Benka, Pavel
Benka, Pavel in OpenAIREHein, Thomas;
Hein, Thomas
Hein, Thomas in OpenAIREpmid: 38636421
Floodplains provide an extraordinary quantity and quality of ecosystem services (ES) but are among the most threatened ecosystems worldwide. The uses and transformations of floodplains differ widely within and between regions. In recent decades, the diverse pressures and requirements for flood protection, drinking water resource protection, biodiversity, and adaptation to climate change have shown that multi-functional floodplain management is necessary. Such an integrative approach has been hampered by the various interests of different sectors of society, as represented by multiple stakeholders and legal principles. We present an innovative framework for integrated floodplain management building up on ES multi-functionality and stakeholder involvement, forming a scientifically based decision-support to prioritize adaptive management measures responding at the basin and local scales. To demonstrate its potential and limitations, we applied this cross-scaled approach in the world's most international and culturally diverse basin, the Danube River Basin in Europe. We conducted large-scale evaluations of anthropogenic pressures and ES capacities on the one hand and participatory modelling of the local socio-ecohydrological systems on the other hand. Based on our assessments of 14 ES and 8 pressures, we recommend conservation measures along the lower and middle Danube, restoration measures along the upper-middle Danube and Sava, and mitigation measures in wide parts of the Yantra, Tisza and upper Danube rivers. In three case study areas across the basin, stakeholder perceptions were generally in line with the large-scale evaluations on ES and pressures. The positive outcomes of jointly modelled local measures and large-scale synergistic ES relationships suggest that multi-functionality can be enhanced across scales. Trade-offs were mainly present with terrestrial provisioning ES at the basin scale and locally with recreational activities. Utilizing the commonalities between top-down prioritizations and bottom-up participatory approaches and learning from their discrepancies could make ecosystem-based management more effective and inclusive.
KU.edoc - Publikatio... arrow_drop_down KU.edoc - Publikationsserver der Katholischen Universität Eichstätt-IngolstadtArticle . 2024License: CC BYData sources: Bielefeld Academic Search Engine (BASE)Journal of Environmental ManagementArticle . 2024 . Peer-reviewedLicense: CC BYData sources: Crossrefadd ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://beta.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.1016/j.jenvman.2024.120899&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.eu4 citations 4 popularity Average influence Average impulse Average Powered by BIP!
more_vert KU.edoc - Publikatio... arrow_drop_down KU.edoc - Publikationsserver der Katholischen Universität Eichstätt-IngolstadtArticle . 2024License: CC BYData sources: Bielefeld Academic Search Engine (BASE)Journal of Environmental ManagementArticle . 2024 . Peer-reviewedLicense: CC BYData sources: Crossrefadd ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://beta.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.1016/j.jenvman.2024.120899&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.eudescription Publicationkeyboard_double_arrow_right Article , Journal 2016 United KingdomPublisher:Elsevier BV Authors:Hein, Thomas;
Schwarz, Ulrich;Hein, Thomas
Hein, Thomas in OpenAIREHabersack, Helmut;
Nichersu, Iulian; +3 AuthorsHabersack, Helmut
Habersack, Helmut in OpenAIREHein, Thomas;
Schwarz, Ulrich;Hein, Thomas
Hein, Thomas in OpenAIREHabersack, Helmut;
Nichersu, Iulian;Habersack, Helmut
Habersack, Helmut in OpenAIREPreiner, Stefan;
Preiner, Stefan
Preiner, Stefan in OpenAIREWillby, Nigel;
Willby, Nigel
Willby, Nigel in OpenAIREWeigelhofer, Gabriele;
Weigelhofer, Gabriele
Weigelhofer, Gabriele in OpenAIREFloodplains are key ecosystems of riverine landscapes and provide a multitude of ecosystem services. In most of the large river systems worldwide, a tremendous reduction of floodplain area has occurred in the last 100 years and this loss continues due to pressures such as land use change, river regulation, and dam construction. In the Danube River Basin, the extent of floodplains has been reduced by 68% compared to their pre-regulation area, with the highest losses occurring in the Upper Danube and the lowest in the Danube Delta. In this paper, we illustrate the restoration potential of floodplains along the Danube and its major tributaries. Via two case studies in the Upper and Lower Danube, we demonstrate the effects of restoration measures on the river ecosystem, addressing different drivers, pressures, and opportunities in these regions. The potential area for floodplain restoration based on land use and hydromorphological characteristics amounts to 8102 km(2) for the whole Danube River, of which estimated 75% have a high restoration potential. A comparison of floodplain status and options for restoration in the Upper and Lower Danube shows clear differences in drivers and pressures, but certain common options apply in both sections if the local context of stakeholders and societal needs are considered. New approaches to flood protection using natural water retention measures offer increased opportunities for floodplain restoration, but conflicting societal needs and legal frameworks may restrict implementation. Emerging issues such as climate change and invasive non-native species will need careful consideration in future restoration planning to minimize unintended effects and to increase the resilience of floodplains to these and other pressures.
The Science of The T... arrow_drop_down The Science of The Total EnvironmentArticle . 2016 . Peer-reviewedLicense: Elsevier TDMData sources: CrossrefUniversity of Stirling: Stirling Digital Research RepositoryArticle . 2016Data sources: Bielefeld Academic Search Engine (BASE)add ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://beta.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.1016/j.scitotenv.2015.09.073&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.eu122 citations 122 popularity Top 1% influence Top 10% impulse Top 1% Powered by BIP!
more_vert The Science of The T... arrow_drop_down The Science of The Total EnvironmentArticle . 2016 . Peer-reviewedLicense: Elsevier TDMData sources: CrossrefUniversity of Stirling: Stirling Digital Research RepositoryArticle . 2016Data sources: Bielefeld Academic Search Engine (BASE)add ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://beta.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.1016/j.scitotenv.2015.09.073&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.eudescription Publicationkeyboard_double_arrow_right Article , Journal 2004Publisher:Elsevier BV Authors: Walter Reckendorfer; Christian Baranyi; Fritz Schiemer;Thomas Hein;
Thomas Hein
Thomas Hein in OpenAIREpmid: 15207585
Results of two monitoring programs obtained in the free-flowing section of the Danube downstream of Vienna were used to evaluate the effects of river restoration designed to increase surface water inputs into side-arms. Functional descriptors like hydrochemical parameters and plankton react immediately to restored hydrological conditions and offer the opportunity to elucidate the hydrological control on organic processing as an important ecosystem function in fluvial landscapes. Two hydraulic parameters were estimated and linked to basic ecological properties. The level of hydrological connectivity was defined as the average annual duration (days per year) of upstream surface connection and can be used as a 'simple to estimate' parameter within the planning phase. Water age, an adapted measure of residence time based on more detailed information, allow description of the temporal development in side-arms. Greater hydrological connectivity leads to lower conductivity levels and increased nutrient concentrations due to the shift of the dominating source to river water. The contribution of river flow is indicated by higher suspended solid concentrations in side-arms than disconnected water bodies. The phytoplankton biomass shows the highest mean values at a duration of integration of 1 month a(-1) and decrease with increasing connectivity. The relationships point to a more 'main channel like' hydrochemical situation in the side-arms, with a medium level of phytoplankton biomass and increased autochthonous carbon export. No evidence of eutrophication was found due to the shift of the side-arm from an organic matter sink to a source. On a more detailed level, water age demonstrates the temporal patterns of riverine input, the development of plankton production and the shift between hydrological and biological control of phytoplankton vs. riverine flow in a side-arm. The hydrologic parameters were useful predictors for evaluating the effects of restoration measures in river floodplain systems.
The Science of The T... arrow_drop_down The Science of The Total EnvironmentArticle . 2004 . Peer-reviewedLicense: Elsevier TDMData sources: Crossrefadd ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://beta.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.1016/j.scitotenv.2004.01.006&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.eu84 citations 84 popularity Top 10% influence Top 10% impulse Top 10% Powered by BIP!
more_vert The Science of The T... arrow_drop_down The Science of The Total EnvironmentArticle . 2004 . Peer-reviewedLicense: Elsevier TDMData sources: Crossrefadd ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://beta.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.1016/j.scitotenv.2004.01.006&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.eudescription Publicationkeyboard_double_arrow_right Article , Other literature type 2022Publisher:MDPI AG Authors:Flipos Engdaw;
Flipos Engdaw
Flipos Engdaw in OpenAIREThomas Hein;
Thomas Hein
Thomas Hein in OpenAIREGetachew Beneberu;
Getachew Beneberu
Getachew Beneberu in OpenAIREdoi: 10.3390/su14052791
Excess heavy metal concentrations caused by severe anthropogenic activities are among the major threats of aquatic pollution in developing countries like Ethiopia. So far, there is limited information regarding concentrations of selected toxic heavy metals in the freshwater bodies of northern Ethiopian highlands. Therefore, this study aimed to assess the current status and spatial distributions of heavy metals in water and sediment samples of the Megech River located in the North Gondar zone of the Amhara region from November 2018 to January 2019. Six different sampling sites (M1–M6) were identified based on the anthropogenic influence. A total of 30 water and 30 sediment samples were collected along the course of the river. Results revealed that concentrations of Cu (0.11 to 0.17 mg L−1), Zn (0.11 to 0.16 mg L−1) and Cr (0.03–0.05 mg L−1) in the water were within international guidelines for domestic use. In the sediment, maximum concentrations of heavy metals detected at site M2 were within the recommended sediment quality guideline for aquatic systems. Generally, higher concentrations of heavy metals were observed at sites with higher anthropogenic activity (M2). Therefore, continuous monitoring and seasonal studies with representative samples including benthic organisms and macrophytes are needed to quantify the impact on downstream sections.
Sustainability arrow_drop_down SustainabilityOther literature type . 2022License: CC BYFull-Text: http://www.mdpi.com/2071-1050/14/5/2791/pdfData sources: Multidisciplinary Digital Publishing Instituteadd ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://beta.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.3390/su14052791&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.euAccess Routesgold 15 citations 15 popularity Top 10% influence Average impulse Top 10% Powered by BIP!
more_vert Sustainability arrow_drop_down SustainabilityOther literature type . 2022License: CC BYFull-Text: http://www.mdpi.com/2071-1050/14/5/2791/pdfData sources: Multidisciplinary Digital Publishing Instituteadd ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://beta.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.3390/su14052791&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.eudescription Publicationkeyboard_double_arrow_right Article , Journal 2015Publisher:Informa UK Limited Authors: Najib Lukooya Bateganya;Guenter Langergraber;
Guenter Langergraber
Guenter Langergraber in OpenAIREThomas Hein;
James Okot-Okumu; +1 AuthorsThomas Hein
Thomas Hein in OpenAIRENajib Lukooya Bateganya;Guenter Langergraber;
Guenter Langergraber
Guenter Langergraber in OpenAIREThomas Hein;
James Okot-Okumu; Alex Kazibwe;Thomas Hein
Thomas Hein in OpenAIREpmid: 26387557
Nutrient-rich effluents from municipal wastewater treatment plants (WWTPs) have significantly contributed to eutrophication of surface waters in East Africa. We used vertical (VF, 0.2 m(2)) and horizontal (HF, 0.45 m(2)) subsurface flow (SSF) constructed wetland (CW) configurations to design single-stage mesocosms planted with Cyperus papyrus, and operating under batch hydraulic loading regime (at a mean organic loading rate of 20 g COD m(-2) d(-1) for HF and 77 g COD m(-2) d(-1) for VF beds). The aim of the investigation was to assess the performance of SSF CWs as hotspots of nutrient transformation and removal processes between the WWTP and the receiving natural urban wetland environment in Kampala, Uganda. C. papyrus coupled with batch loading enhanced aerobic conditions and high efficiency regarding the elimination of suspended solids, organic matter, and nutrients with significant performance (P < .05) in VF mesocosms. The mean N and P elimination rates (g m(-2) d(-1)) were 9.16 N and 5.41 P in planted VF, and 1.97 N and 1.02 P in planted HF mesocosms, respectively. The lowest mean nutrient elimination rate (g m(-2) d(-1)) was 1.10 N and 0.62 P found in unplanted HF controls. Nutrient accumulation in plants and sediment retention were found to be essential processes. It can be concluded that whereas the SSF CWs may not function as independent treatment systems, they could be easily adopted as flexible and technologically less intensive options at a local scale, to increase the resilience of receiving environments by buffering peak loads from WWTPs.
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For further information contact us at helpdesk@openaire.eu10 citations 10 popularity Top 10% influence Average impulse Average Powered by BIP!
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For further information contact us at helpdesk@openaire.euResearch data keyboard_double_arrow_right Dataset 2021Publisher:PANGAEA Authors:Friedrichs-Manthey, Martin;
Langhans, Simone D;Friedrichs-Manthey, Martin
Friedrichs-Manthey, Martin in OpenAIREBorgwardt, Florian;
Borgwardt, Florian
Borgwardt, Florian in OpenAIREHein, Thomas;
+4 AuthorsHein, Thomas
Hein, Thomas in OpenAIREFriedrichs-Manthey, Martin;
Langhans, Simone D;Friedrichs-Manthey, Martin
Friedrichs-Manthey, Martin in OpenAIREBorgwardt, Florian;
Borgwardt, Florian
Borgwardt, Florian in OpenAIREHein, Thomas;
Hein, Thomas
Hein, Thomas in OpenAIREKling, Harald;
Stanzel, Philipp; Jähnig, Sonja C;Kling, Harald
Kling, Harald in OpenAIREDomisch, Sami;
Domisch, Sami
Domisch, Sami in OpenAIREThe data contains vulnerability estimates (climate niche factor analysis) for 49 native fish species in the upper Danube River basin. The upper Danube River basin is mainly located in Germany and Austria. The time frame covered is 300 years from 1800 to 2100 including two Representative Concentration Pathways, RCP 4.5 and RCP 8.5. Vulnerability estimates are calculated for three time frames (1800-1830; 1900-1930and 2070-2100 (including two RCPs)) with the time frame 1970-2000 as the baseline. In all files the zone column gives the basin ID for the master basins layer. The mean column gives the mean vulnerability estimate for a sub-basin for a certain species. For the future scenarios the different predictions based on the different GCM-RCM combinations have to be combined using the median and the zone as unique identifier.
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For further information contact us at helpdesk@openaire.eu0 citations 0 popularity Average influence Average impulse Average Powered by BIP!
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