A5012933454- Water Quality and Pollution Assessment
- Soil and Water Nutrient Dynamics
- Hydrology and Watershed Management Studies
- Water Quality Monitoring and Analysis
- Fish Ecology and Management Studies
- Hydrology and Sediment Transport Processes
- Fish biology, ecology, and behavior
- Water Systems and Optimization
- Hydrology and Drought Analysis
- Freshwater macroinvertebrate diversity and ecology
- Wastewater Treatment and Nitrogen Removal
- Geography and Environmental Studies
- Aquatic Ecosystems and Biodiversity
- Ecology and biodiversity studies
- Heavy metals in environment
- Municipal Solid Waste Management
- Biosensors and Analytical Detection
- Water Quality Monitoring Technologies
- Environmental Sustainability and Education
- Aquatic Ecosystems and Phytoplankton Dynamics
- Water resources management and optimization
- Water-Energy-Food Nexus Studies
- Constructed Wetlands for Wastewater Treatment
Umeå University
2023-2024
Universidade de São Paulo
2016-2023
SANE Mental Health Charity
2022
Universidade Federal de São Carlos
2021-2022
Universidade de Caxias do Sul
2015-2016
Next article Open AccessShort-term changes in ecosystem functioning after a wildfire tropical headwater streamNícolas Finkler, Murilo de Souza Ferreira, João Miguel Merces Bega, Wesley Aparecido Saltarelli, Björn Gücker, Walter Keneddy Dodds, Ryan A Sponseller, and Davi Gasparini Fernandes CunhaNícolas CunhaPDFPDF PLUS Add to favoritesDownload CitationTrack CitationsPermissionsReprints Share onFacebookXLinkedInRedditBlueskyEmailPrint SectionsMoreDetailsFiguresReferencesCited by Freshwater...
Abstract Agricultural activities can affect the delivery of nutrients to streams, riparian canopy cover, and capacity aquatic systems process sediments. There are few measures nutrient uptake metabolism from tropical or subtropical streams in general, even fewer regions South America. We examined ammonium (NH 4 + ) soluble reactive phosphorus (SRP) retention Brazil Argentina. selected 12 with relatively little extensive agricultural activity conducted whole‐stream additions measurements...
Os fatores naturais e, em especial os antrópicos, que contribuem para a variação espacial e temporal da qualidade água superficial nas bacias hidrográficas do município de Caxias Sul foram determinados com uso técnicas multivariadas análise dados. Foi utilizada técnica Análise Componente Principal (ACP) como base o estudo. O monitoramento foi realizado 30 pontos no período compreendido entre setembro 2012 janeiro 2014. A amostragem realizada bimestralmente, abrangendo seis hidrográficas,...
Abstract Stream restoration efforts have aimed at increasing hydraulic residence time (HRT) and transient storage (TS) to enhance nutrient uptake, but there been few controlled studies quantifying HRT TS influences on uptake dynamics. We assessed the effects of ammonium (NH 4 + ) phosphate (PO 3− through experiments in an artificial channel draining a pristine tropical stream. experimentally dammed with weirs, progressively increase HRT, performed NH PO additions estimate each weir was...
Pollution abatement through phosphorus and nitrogen retention is a key ecosystem service provided by streams. Human activities have been changing in-stream nutrient concentrations, thereby altering lotic functioning, especially in developing countries. We estimated uptake metrics (ambient length, areal rate, velocity) for nitrate (NO3–N), ammonium (NH4–N), soluble reactive (SRP) four tropical Cerrado headwater streams during 2017, whole-stream addition experiments. According to multiple...
Wastewater treatment plants (WWTPs) have eliminated many problems related to sewage inputs aquatic systems. However, the treated effluents still affect river and stream ecosystems. Yet, very limited information is available about fate of in tropical receiving water bodies. Here, we examined longitudinal changes ammonium (NH4-N), nitrate (NO3-N), soluble reactive phosphorus (SRP) concentrations reaches downstream from chronic WWTP three rivers São Paulo state (Southeastern Brazil). The...
A aplicação de instrumentos econômicos na gestão das águas tem como princípio incentivar a forma racional dos padrões consumo do bem. Nesta linha Política Nacional Recursos Hídricos, busca atribuir um valor econômico à água, introduziu cobrança pelo uso dela nas Bacias Hidrográficas (BCH) no Brasil. Esta revisão metodológica apresenta as metodologias da água atualmente empregadas em domínio União, bem arrecadação gerada e os investimentos realizados respectivas BCH. No Brasil, o instrumento...
Riparian areas are recognized for their buffering capacity regarding phosphorus and nitrogen from agricultural urban runoff. However, role in attenuating nutrient loads of rivers receiving point source inputs (e.g., wastewater treatment plants, WWTPs) is still little understood. Here, we investigated whether ammonium (NH 4 -N), nitrate (NO 3 soluble reactive (SRP) retention were influenced by the riparian land use three Brazilian WWTP effluents. We hypothesized that attenuation would be...
Abstract Rivers and streams provide many ecosystem services, including provision of food, water purification, nutrient abatement. Ecosystem functioning, the set processes that regulate fluxes energy matter, is backbone services. A myriad human impacts affects functioning running waters. To reduce these impacts, strategies for conservation recovery riparian vegetation, as well direct interventions stream restoration, have been carried out. However, actions more limited in sub/tropical than...
In this study it was aimed to provide the foundation studies of water availability in Arroio Belo basin, Caxias do Sul/RS. Therefore, analyze application Weibull, Normal, LogNormal, Gumbel (minimum), LogPearson and Pearson theoretical probability functions data minimum streamflows for seven consecutive days basin. The analysis had two approaches: annual data, then on monthly considering seasonality. To verify adherence estimated probabilities observed frequencies, we applied three tests:...
The natural factors and anthropogenic activities that contribute to spatial temporal variation in superficial waters Caxias do Sul’s urban hydrographic basins were determined applying multivariate analysis of data. techniques used this study Principal Component Analysis Cluster Analysis. monitoring was executed 12 sampling stations, during January, 2009 2010 with monthly periodicity total 13 campaigns. Between chemical, biological physical, 20 parameters analyzed. results state the use ACP,...
Abstract The distance that a nutrient travels as solute before its removal from the stream water column is known uptake length ( S W ), which functional indicator of environmental quality and integrity. Among enrichment methods, instantaneous addition (e.g., slug or pulse) have been proposed an alternative to plateau labeled approaches. Two approaches commonly used estimate associated metrics (i.e., areal rate, U ; velocity, V f ) pulse additions: spiraling approach, based on longitudinal...
One of the main challenges water management in developing countries is to control impact urban environment on natural environment.Identifying sources pollution an watershed a critical first step towards providing more integrated environmental planning, proper wastewater disposal and public supplying.Thus, this study we assessed 5-year quality data from six river basins Southern Brazil.In addition principal component analysis (PCA), three indexes were evaluated individually: Water Quality...
This paper aims to present a review of household waste management in two small municipalities located at Mountain Region (RS – Brazil). As method, it was used data from amounts destined for regular and selective collection, physical characterization gravimetric composition the generated three neighbourhoods different social classes. It observed that largest municipality showed better efficiency higher coverage collection. The per capita index generation similar among municipalities,...