Biological Indicators to Assess the Ecological Status of River-Dominated Estuaries: The Case of Benthic Indicators in the Ebro River Estuary

2015 ◽  
pp. 149-170 ◽  
Author(s):  
Carles Ibáñez ◽  
Nuno Caiola ◽  
Rosa Trobajo ◽  
Alfonso Nebra ◽  
Laia Rovira
Keyword(s):  
Ecological Status ◽  
River Estuary ◽  
Biological Indicators ◽  
Ebro River ◽  
Benthic Indicators

scholarly journals Microbiological assessment of ecological status in the Pearl River Estuary, China

2021 ◽  
Vol 130 ◽  
pp. 108084
Author(s):  
Fangzhou Chen ◽  
Xiu Pei Koh ◽  
Mandy Lok Yi Tang ◽  
Jianping Gan ◽  
Stanley C.K. Lau
Keyword(s):  
Ecological Status ◽  
River Estuary ◽  
Pearl River Estuary ◽  
Pearl River ◽  
The Pearl River Estuary ◽  
The Pearl River

scholarly journals Study of Water Quality Indicators of Mountain Rivers Used as Source of Drinking Water Supply of the Targu-Jiu Municipality

2020 ◽  
Vol 71 (1) ◽  
pp. 384-389
Author(s):  
Delia Nica-Badea ◽  
Simona Brandibur
Keyword(s):  
Water Quality ◽  
Drinking Water ◽  
Natural Waters ◽  
Ecological Status ◽  
Quality Criteria ◽  
Quality Standards ◽  
Biological Indicators ◽  
Mountainous Area ◽  
Water Quality Criteria ◽  
National Quality

Water quality criteria are all physicochemical and biological indicators that characterize a body of water. The current study aims at investigating the quality of two natural waters in the Gorj County sub-mountainous area (�u�i�a, Vaidei and Runc, capture Runc) used as drinking water sources of Targu-Jiu. Sampling and determinations use spectrophotometric, gravimetric, volumetric or electrometric techniques in accordance with standard methods (SR ISO and / or SR EN) for a series of physicochemical indicators analyzed between January - December 2017: thermal and acidification, oxygen regime, nutrients, salinity, relevant pollutants. Experimental values, annual averages related to the quality standards for potable water, ecological status and classification of water bodies, place the water of the two rivers in the drinking water category A1 and the first class of ecological quality. The Water Quality Index (WQI) for 9 selected parameters highlighted a sensitively close overall level of the water of the two rivers Susita (88) and Runc (85.2), the good quality category (7o-9o), reported to national quality standards for surface water which can be used for delivery as drinking water.The study of indicators of the two rivers in relation to national rules aligned with the European water requirements and research shows a high qualitative status corresponding to community uses.

Development of tools for ecological quality assessment in polish marine areas according to the Water Framework Directive. Part II — Chlorophyll-a

2009 ◽  
Vol 38 (3) ◽  
Author(s):  
Elżbieta Łysiak-Pastuszak ◽  
Włodzimierz Krzymiński ◽  
Łukasz Lewandowski
Keyword(s):  
Quality Assessment ◽  
Water Framework Directive ◽  
Reference Conditions ◽  
Ecological Status ◽  
Biological Indicators ◽  
Ecological Quality ◽  
Response Curves ◽  
Environmental Pressures ◽  
Marine Areas ◽  
The Baltic

Development of tools for ecological quality assessment in polish marine areas according to the Water Framework Directive. Part II — Chlorophyll-To implement the EU Water Framework Directive (WFD) it is necessary to establish tools enabling ecological status quantification on the basis of biological indicators, and to assess reference conditions and relevant environmental pressures for the construction of response curves. This study focuses on the Polish sector of the Baltic Sea. A number of statistically significant linear correlations, linking chlorophyll-

scholarly journals Characteristics of water level fluctuations in Polish lakes – a review of the literature / Charakterystyka wahań poziomu wody w jeziorach polskich – przegląd piśmiennictwa

2014 ◽  
Vol 25 (3) ◽  
pp. 27-34 ◽  
Author(s):  
Sebastian Kutyła
Keyword(s):  
Water Level ◽  
Ecological Status ◽  
Hydrological Regime ◽  
Biological Indicators ◽  
Water Level Fluctuations ◽  
Review Of Literature ◽  
Economic Activities ◽  
Natural Feature ◽  
Good Ecological Status ◽  
The Impact

Abstract Water level fluctuations (WLF) in lakes are a natural feature that can be modified by human activities. The article presents a review of literature on the water level fluctuation in Polish lakes, their amplitude, periodicity and trends. WLF controlled by natural conditions and also those induced by human activity were considered. Although anthropogenic water level fluctuations in most Polish lakes seem to fall within the range of natural fluctuations, in some cases economic activities (e.g. the use of lakes for energy generation purposes) can lead to strong disturbances of the hydrological regime, causing an ecological instability that makes it impossible to maintain/achieve good ecological status. This, in turn, makes it necessary to define good ecological potential, being an environmental objective for such water bodies, which is less rigorous compared with good ecological status. The article indicates the need to expand the methods for the assessment of lakes in the country with new biological indicators to assess, in accordance with the Water Framework Directive requirements, the impact of hydrological alterations on biota

Ecological status and sources of anthropogenic contaminants in mangroves of the Wouri River Estuary (Cameroon)

2016 ◽  
Vol 109 (2) ◽  
pp. 723-733 ◽  
Author(s):  
Marco Fusi ◽  
Gian Maria Beone ◽  
Nicoleta Alina Suciu ◽  
Angela Sacchi ◽  
Marco Trevisan ◽  
...  
Keyword(s):  
Ecological Status ◽  
River Estuary

scholarly journals The structure community of zooplankton and environmental conditions of the Kalimireng River estuary, Gresik, East Java

2022 ◽  
Vol 956 (1) ◽  
pp. 012005
Author(s):  
U Yanuhar ◽  
M Musa ◽  
A Oktaviana ◽  
N S Junirahma ◽  
N R Caesar
Keyword(s):  
Water Quality ◽  
Environmental Conditions ◽  
Water Productivity ◽  
High Tide ◽  
River Estuary ◽  
Biological Indicators ◽  
Water Quality Monitoring ◽  
Dominance Index ◽  
Water Conditions

Abstract Water quality monitoring is a key component in the management of these important water resources and ecosystems. Biological indicators can be monitored continuously and are easy instructions for monitoring the occurrence of pollution. One of the biological parameters that can be used as a marker of environmental conditions is plankton. zooplankton can be used as study material to determine the quality and water productivity. The method used in this research is descriptive to determine the water quality condition in the estuary of the Kalimireng river biologically through the identification and characterization of zooplankton. Observations of plankton identification, plankton abundance, dominance index, and characterization of zooplankton were analyzed by fluorescence microscope observation. Three species of zooplankton were found in the waters of the Kalimireng estuary, Leptodiaptomus sp., Canthocamptus staphylinus, and Diaphanosoma bracyurum. Zooplankton is more abundant in water conditions at high tide compared to water conditions at low tide. At high tide, the highest abundance value was obtained at the station I at week 3, 843 ind/mL. At low tide, the highest abundance value was obtained at the station I at week 2,251 ind/L. The highest Dominance Index (D) at tidal water conditions is shown at station 2. This indicates that there is a community that dominates at that station.

Assessment of ecological status in small urban streams of Prague agglomeration

2004 ◽  
Vol 50 (5) ◽  
pp. 285-291 ◽  
Author(s):  
J. Nábělková ◽  
D. Komínková ◽  
G. Št'astná
Keyword(s):  
Heavy Metals ◽  
Hazard Quotient ◽  
Sediment Toxicity ◽  
Ecological Status ◽  
Pollution Index ◽  
Biological Indicators ◽  
Biological Assessment ◽  
Sources Of Pollution ◽  
Hydraulic Impact ◽  
Different Sources

The purpose of this research was to compare ecological status of a few small urban watersheds in Prague agglomeration (the Botič creek, the Zátišský creek and the Komočanský creek) with different sources of pollution, different sewer systems and with different hydraulic regimes of the recipient. Concentrations of selected heavy metals (Cd, Cu, Ni, Pb, Zn) were measured in water and sediment samples and in different species of benthic organisms. The biological assessment of macrozoobenthos has also been carried out using two biotic indexes: the saprobic index and the ASPT. The assessment of the environmental risk in an aquatic environment has been based on three different coefficients: the Distribution coefficient (Kd), the Hazard Quotient (HQ) and the Metal Pollution Index (MPI). In the Botič creek there was found out chronic load of bottom sediment by heavy metals. There is higher ecological risk of sediment toxicity in this creek. Outlets of combined sewer system in the Botic creek degrade water quality and consequently deteriorate biological indicators. In the Zátišský creek the main problem is connected with storm sewer outlets. The comparison of the Zátišský creek with the reference stream, the Komořanský creek demonstrates strong hydraulic impact, which induces frequent changes of watercourse morphology reflecting on the composition and representation of benthic macroorganisms.

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