scholarly journals Terrestrial and Riparian Organisms, Lakes and Streams (TROLS)

2016 ◽  
Vol 92 (01) ◽  
pp. 50-52
Author(s):  
Sheena A. Spencer ◽  
Kevin Devito ◽  
Ellen Macdonald
Keyword(s):  
Water Quality ◽  
Aquatic Ecosystem ◽  
Aquatic Ecosystems ◽  
Riparian Buffers ◽  
Forest Harvest ◽  
Landscape Water ◽  
Buffer Width ◽  
Forest Managers ◽  
Buffer Effects

The Terrestrial and Riparian Organisms, Lakes and Streams Project studied the impacts of forest harvest and riparian buffers on terrestrial and aquatic ecosystems in twelve fish-bearing lakes in the boreal mixed-wood forests of Alberta. Major results are outlined based on forest harvest and buffer effects on the landscape, water quality, and the aquatic ecosystem. Results from this project suggest that forest managers should be flexible in buffer width recommendations and should consider the entire watershed when determining the effects of disturbance due to complexities in the landscape.

scholarly journals DIGITAL TECHNIQUES FOR WATER POLLUTION CONTROL

2021 ◽  
Vol XXVIII (2) ◽  
pp. 138-148
Author(s):  
Nina Sava ◽  
◽  
Galina Marusic ◽  
Keyword(s):  
Water Pollution ◽  
Water Quality ◽  
Aquatic Ecosystem ◽  
Aquatic Ecosystems ◽  
Accurate Estimate ◽  
Quality Parameters ◽  
Simulation Software ◽  
Water Quality Control ◽  
Software Products ◽  
Advantages And Disadvantages

This paper is a detailed description and analysis of the most popular techniques digital for water quality control nowadays. It is illustrated how these techniques can be applied to solve problems that have arisen as a result of water pollution of aquatic ecosystems in different countries of the world. The advantages and disadvantages of using dynamic simulation software tools are presented and are based on an analysis of their operation. For each software product are highlighted the water quality parameters that can be simulated. It also presents the analysis of software products regarding the type of simulated aquatic ecosystem, as well as spatiotemporal modelling. The realization of these techniques is based on mathematical models. The development of digital techniques at the regional level may take into account certain characteristics specific to a particular aquatic ecosystem. The models can only cover a limited number of pollutants. In the process of selecting the parameters for the model, pollutants must be chosen which are a concern in themselves and which would also represent a wider set of substances that cannot be modelled in detail. Although the digital techniques examined to provide a particularly accurate estimate of water quality, the behaviour of pollutants in aquatic ecosystems remains an area of active and current research.

The Impacts of Water Quality Changes on Aquatic Ecosystems: A Case Study of Clariano River, Spain

2020 ◽  
Author(s):  
Hamed Vagheei ◽  
Paolo Vezza ◽  
Guillermo Palau-Salvador ◽  
Fulvio Boano
Keyword(s):  
Water Quality ◽  
Aquatic Ecosystem ◽  
Aquatic Ecosystems ◽  
Assessment Tool ◽  
Stream Water ◽  
Anthropogenic Activities ◽  
Swat Model ◽  
Associate Professor ◽  
Quality Changes

<p><strong>The Impacts of Water Quality Changes on Aquatic Ecosystems: A Case Study of Clariano River, Spain </strong></p><p>Hamed Vagheei<sup>1</sup>, Paolo Vezza<sup>2</sup>, Guillermo Palau-Salvador<sup>3</sup>, Fulvio Boano<sup>4</sup></p><ol><li>PhD Student, the Polytechnic University of Turin, [email protected]</li> <li>Assistant professor, the Polytechnic University of Turin, [email protected]</li> <li>Associate Professor, the Polytechnic University of Valencia, [email protected]</li> <li>Associate Professor, the Polytechnic University of Turin, [email protected]</li> </ol><p><strong>Abstract</strong></p><p>Water quality degradation resulting from different anthropogenic activities such as agriculture, deforestation and urbanization is a serious worldwide challenge which have negative impacts on aquatic ecology. Unfortunately, it is still difficult to quantitatively determine the impacts of water quality changes on aquatic communities. The objective of the present research activity is to investigate aquatic ecosystem responses to water quality deterioration using a case study of Clariano River, Spain. The Clariano River faces low water quality and the loss of biodiversity in some parts as a result of agricultural, industrial and livestock activities as well as wastewater treatment plants (WWTP) effluents entering the river. The Soil and Water Assessment Tool (SWAT), an eco-hydrological model, is used in the present study for the modelling of discharge, sediment and nutrients. SWAT-CUP is also used to calibrate and validate the SWAT model. We are currently employing the results from the calibrated model to obtain a better understanding of possible relations between water quality and biodiversity. In fact, the present study will focus on macroinvertebrates as biological indicators of stream health, and the model predictions will be coupled with empirical correlations between stream water quality and macroinvertebrates presence in order to assess the impacts of water quality changes on aquatic ecosystem. In addition, different model scenarios will be compared to explore the potential impacts of changes in land use, climate and WWTPs operation on the aquatic ecosystem.</p><p><strong>Keywords:</strong> aquatic ecosystem, Clariano River, eco-hydrological modelling, water quality, water resources management</p>

Evaluation of Landfill Effects on Aquatic Ecosystems Using Benthic Macro-Invertebrates

1992 ◽  
Vol 26 (9-11) ◽  
pp. 2365-2367
Author(s):  
L. Cingolani ◽  
A. Morosi
Keyword(s):  
Aquatic Ecosystem ◽  
Aquatic Ecosystems ◽  
Drainage Area ◽  
Taxonomic Level ◽  
Significant Difference ◽  
Downstream Communities

The aim of this work was to verify the effectiveness of benthic macro-invertebrate observation in providing information about the effects of a landfill on an aquatic ecosystem. A significant difference between upstream and downstream communities from landfill drainage area was found. The adopted taxonomic level was sufficient to reach our object.

On methodological approaches to the improvement of surface water bodies and target indicators of the natural waters’ quality

2021 ◽  
Vol 27 (1) ◽  
pp. 6-14
Author(s):  
V. Zaslonovsky ◽  
◽  
N. Sharapov ◽  
M. Bosov ◽  
◽  
...  
Keyword(s):  
Water Quality ◽  
Surface Water ◽  
Natural Water ◽  
Aquatic Ecosystems ◽  
Natural Waters ◽  
Water Bodies ◽  
Surface Water Bodies ◽  
Methodological Approaches ◽  
Natural Water Bodies

The paper is devoted to the development of proposals concerning the improvement of surface water bodies and the appointment of target indicators of the natural waters’ quality. The paper considers a variety of problems of preserving, restoring and improving the quality of natural surface waters: from regional features of the formation of natural water composition, to differences in the requirements for the quality of water consumed. The object of the study is the qualitative indicators of the waters of natural water bodies, and the subject of the study is the methodological approaches to the normalization of these indicators. The purpose of the work is to identify the main shortcomings in the domestic system of rationing the quality of natural waters, and to form appropriate proposals. For this purpose, the following tasks were set and solved: to review the methodological approaches to assessing and rationing the quality of natural waters used in some foreign countries and in the Russian Federation, to identify the main causes and shortcomings; to make proposals for improving the current system of water quality rationing. The result of this work is the conclusions about the lack of impact of the strategy operating in Russia in the development of schemes of complex use and protection of water objects, standards of permissible impact on water bodies, the appointment of permissible discharge limits in terms of maintaining and improving the water quality of natural water bodies. The reasons that led to this are indicated. The necessity of taking into account, in addition to the physical and chemical composition, also hydrobiological parameters is shown. It is concluded that instead of fisheries management standards, environmental standards should serve as the basis for target indicators of water quality of natural water bodies, which determine the well-being of humans and the stable functioning of aquatic ecosystems, taking into account regional factors. Proposals were made to adjust the methodological approaches to the implementation of this strategy. According to the authors, these proposals will speed up the solution of the main objectives of the strategy – the ecological improvement of water bodies, the preservation of unique aquatic ecosystems and the environmentally safe development of territories that previously experienced relatively small anthropogenic impacts (Eastern Siberia and the Far East)

Water Quality From Gualaxo Do Norte And Carmo Rivers (Minas Gerais, Brazil) After The Fundão Dam Failure

2021 ◽  
Vol 44 ◽  
Author(s):  
Leonardo Brandão Nogueira ◽  
Sabriny Melo Sousa ◽  
Camila Gonçalves Lobo Santos ◽  
Gustavo Simões Araújo ◽  
Laser Oliveira ◽  
...  
Keyword(s):  
Water Quality ◽  
Trace Elements ◽  
Rainy Season ◽  
Aquatic Ecosystems ◽  
Dam Failure ◽  
Subsistence Farming ◽  
Environmental Disaster ◽  
Uncertain Future ◽  
Toxic Potential

Mining waste is rich in trace elements, which present a high toxic potential and may represent a risk for aquatic ecosystems. The Fundão dam failure, considered the largest environmental disaster in the world, affected 663.2 km of watercourses, including Carmo and Gualaxo do Norte Rivers. The ore tail also affected the riverside communities, destroying villages, killing people and affecting the subsistence farming. To evaluate the influence of the mine tailing wave on the water quality of the Carmo and Gualaxo do Norte Rivers water samples were collected at nine points located in Barra Longa during the rainy season. Physicochemical parameters (conductivity, resistivity, EH, total dissolved solids, pH and temperature) and major, minor and trace elements concentrations (Ba, Co, Cr, Cu, Ni, Sc, Sr, V, Zn, As, Pb, Al, Fe, Mn, Ca, K, Mg and P) were evaluated and compared with previous studies and conformity limits established by a national resolution (CONAMA Resolution N°357/2005). Only conductivity, Fe and Mn presented non-conformity values according to CONAMA Resolution N°357/2005. These results may be related not only to the dam burst but also to the rainy season and non-detectable pollution sources. Furthermore, the decreased levels in the toxic elements in the rivers over time, may be related to its association with sediments in addition to their flux to the Atlantic Ocean. Thus, after nearly six years, the environmental and social impacts are still alive and the minerals dragged to the riverbed could bring cumulative effects for the entire environment what means an uncertain future to the Rio Doce Basin and adjacent coastal zone.

scholarly journals Modeling water quality in the Anthropocene: directions for the next-generation aquatic ecosystem models

2019 ◽  
Vol 36 ◽  
pp. 85-95 ◽  
Author(s):  
Wolf M Mooij ◽  
Dianneke van Wijk ◽  
Arthur HW Beusen ◽  
Robert J Brederveld ◽  
Manqi Chang ◽  
...  
Keyword(s):  
Water Quality ◽  
Aquatic Ecosystem ◽  
Next Generation ◽  
Ecosystem Models

scholarly journals STRUKTUR KOMUNITAS ZOOPLANKTON DI PERAIRAN KABUPATEN LOMBOK UTARA, PROVINSI NUSA TENGGARA BARAT

2018 ◽  
Vol 18 (2) ◽  
Author(s):  
Muhammad Junaidi ◽  
Nurliah Nurliah ◽  
Fariq Azhar
Keyword(s):  
Water Quality ◽  
Community Structure ◽  
Aquatic Ecosystems ◽  
Zooplankton Community ◽  
Geographical Information ◽  
Zooplankton Community Structure ◽  
Ecological Index ◽  
Physical Chemical ◽  
Chemical Conditions

ABSTRAKMengingat peranan zooplankton dalam ekosistem perairan sangat penting, maka dilakukan penelitian dengan tujuan untuk menganalisis struktur komunitas zooplankton yang meliputi jenis, kelimpahan, dan indek ekologi, dan  kaitan  distribusi zooplankton dan kualitas perairan di Perairan Kabupaten Lombok Utara. Pengumpulan data dirancang dengan sistem informasi geografis (SIG) pada 23 stasiun pengamatan yang ditentukan dengan teknik acak sederhana.  Hasil penelitian menunjukkan bahwa jenis dan kelimpahan zooplankton yang ditemukan di Perairan Kabupaten Lombok Utara cukup bervariasi dengan jumlah genus  sebanyak 9 yang terbagi  dari  5 kelas.  Berdasarkan perhitungan indeks ekologi menunjukkan bahwa struktur  komunitas zooplankton dalam kategori perairan yang kurang stabil. Kelimpahan dan indeks ekologi zooplankton  dipengaruhi oleh kondisi lingkungan (fisik-kimia) perairan antara lain  kecerahan, pH dan oksigen terlarut. Kata kunci : zooplankton,  struktur komunitas, kualitas perairan, kelimpahanABSTRACTConsidering that the role of zooplankton in aquatic ecosystems is very  important, research is carried out with the aim of analyzing zooplankton community structure which includes the type, abundance, and ecological index, and the relation of zooplankton distribution and water quality in North Lombok Regency Waters. Data collection was designed with a geographical information system (GIS) on 23 observation stations that were determined by simple random techniques. he results of this study indicate that the type and abundance of zooplankton found in the waters of North Lombok Regency are quite varied with the number of genus as many as 9 which are divided into 5 classes. Based on the calculation of the ecological index shows that the zooplankton community structure is in the category of less stable waters. The abundance and ecological index of zooplankton is influenced by the environmental (physical-chemical) conditions of the waters including brightness, pH and dissolved oxygen. Keywords: zooplankton, community structure, water quality, abundance 

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