scholarly journals Characteristics of Selected Lakes with Aeolian and Karst Genesis in the Holy Cross Region

2020 ◽  
Vol 20 (2) ◽  
pp. 59-64
Author(s):  
Adam Choiński ◽  
Artur Zieliński
Keyword(s):  
Surface Waters ◽  
Catchment Area ◽  
High Variability ◽  
Morphometric Parameters ◽  
Small Surface ◽  
Study Results ◽  
Karst Genesis ◽  
Small Surface Area ◽  
Physical And Chemical ◽  
Chemical Water

AbstractIn the belt of the Polish Uplands, including the Holy Cross Region, lakes occur sporadically. In some places, however, they are somewhat more abundant. They are usually objects with a small surface area. The majority of them have not been subject to thorough investigation. Therefore, the objective of the paper is the expansion of knowledge regarding these lakes. The paper among others presents the characteristics of several lakes with aeolian genesis located on the Przedbórz Upland in the catchment area of the Wierna River and in the Nida Basin near the towns of Busko-Zdrój and Pińczów. The study results determine the morphometric parameters of the lakes, also pointing to an exceptionally high variability of physical and chemical water properties, as well as the possibility of periodical disappearance of the lakes. Moreover, the study results provide a necessary and solid basis for further investigation of the lakes, which in the context of the observed increasingly serious water deficit and decrease in the level of surface waters and groundwaters is undoubtedly of high importance.

Water quality in two catchment areas: a case study of Crocodile (West) and Berg Catchment areas

2014 ◽  
Vol 9 (4) ◽  
pp. 526-533
Author(s):  
S. A. Akinseye ◽  
J. T. Harmse
Keyword(s):  
Water Quality ◽  
Catchment Area ◽  
Pearson Correlation ◽  
Quality Parameters ◽  
Water Quality Parameters ◽  
Western Cape ◽  
Catchment Areas ◽  
Domestic Use ◽  
Physical And Chemical ◽  
Chemical Water

This study focuses on the different physical and chemical water quality parameters of two catchment areas centring on the extent of water pollution in the two basins. Data containing physical and chemical water quality parameters for the Crocodile (West) Catchment area (Gauteng) and the Berg Catchment area (Western Cape) at reconnaissance level of detail were collected from the Department of Water Affairs (DWA) over a period of 5 years, 2007–2011. The relevant data were screened and sorted using the SPSS Software Version 2.0. The data were subjected to ANOVA statistics to search for significant variations in the water quality parameters of concern across the study period in each of the catchment area. The physical and chemical analyses were carried out to determine whether the water quality falls within the total water quality range as prescribed by DWA and WHO for domestic use. Pearson correlation analyses were used to determine the relationship between physical and chemical water quality parameters and the rainfall data over the study period.

scholarly journals Quality of surface waters in the Ohře River catchment area in the years 1963 - 1996

Geografie ◽  
1997 ◽  
Vol 102 (4) ◽  
pp. 270-278
Author(s):  
Julius Česák
Keyword(s):  
Total Phosphorus ◽  
Surface Waters ◽  
Catchment Area ◽  
River Catchment ◽  
Sources Of Pollution ◽  
Oxygen Regime ◽  
Quality Of Water ◽  
Local Sources ◽  
Physical And Chemical

The evaluation concerns selected indices of oxygen regime and of basic physical and chemical indices: BSK5, N-NO3-, N-NH4+, P-PO43-, the total phosphorus and dissolved matters. A particular attention is paid to a comparison of average levels for the whole observed period and for the last five years. The indices of quality are selected to register mainly local sources of pollution which most influence the quality of water in the Ohře river and in its affluents.

scholarly journals Physical and Chemical Properties of Surface Waters in the Różany Strumień Catchment in The Years 1988–2012

2017 ◽  
Vol 36 (1) ◽  
pp. 33-49
Author(s):  
Monika Okońska ◽  
Katarzyna Pietrewicz
Keyword(s):  
Surface Waters ◽  
Catchment Area ◽  
Anthropogenic Impacts ◽  
Chemical Properties ◽  
Oxygen Demand ◽  
Ammonia Nitrogen ◽  
Physical And Chemical Properties ◽  
Hydrogen Carbonate ◽  
Physical And Chemical ◽  
And Chemical Properties

Abstract The Różany Strumień catchment located in the north of Poznań is an example of a small anthropogenically-induced catchment. The main aim of this study is to analyse the variability of selected physical and chemical properties of surface waters in the catchment area in the years 1988-2012. It was found that surface waters in the catchment can be classified as hard and very hard, with slightly basic pH. The deterioration of Różany Strumień water quality concerns chemical oxygen demand, conductivity, chlorides, sodium, ammonia nitrogen and nitrite nitrogen concentrations. The authors of the study have noticed a decrease in the amount of phosphates and sulphates in the water. As observed, the hydrogeochemical type of water changed from calcium-hydrogen carbonate-sulphate into calcium-sodium-hydrogen carbonate-sulphate-chloride. Changes in water chemistry are probably a result of anthropogenic impacts, and they can be associated with the transformation of land use in the catchment area, i.e. the ongoing urbanization of the area.

scholarly journals Microhabitat selection and distribution of functional feeding groups of mayfly larvae (Ephemeroptera) in lotic karst habitats

2018 ◽  
pp. 17 ◽  
Author(s):  
Marina Vilenica ◽  
Andreja Brigić ◽  
Michel Sartori ◽  
Zlatko Mihaljević
Keyword(s):  
Water Current ◽  
Functional Feeding Groups ◽  
Feeding Strategies ◽  
Microhabitat Selection ◽  
Dinaric Karst ◽  
Feeding Groups ◽  
Microhabitat Preferences ◽  
One Year ◽  
Physical And Chemical ◽  
Chemical Water

Research examining mayfly ecology in karst streams and rivers has increased in recent years, though microhabitat preferences remain poorly characterized. We examined mayfly assemblage taxonomy, functional feeding groups and microhabitat preferences in two contrasting lotic Dinaric karst catchments, one pristine and one anthropogenically impacted. At monthly intervals over a one-year period, all major microhabitats (i.e. dominated by boulders, cobbles, sand, silt, mosses, or angiosperms) were sampled at sites spanning springs, upper, middle and lower river reaches, and tufa barriers. In both catchments, mayfly species richness was comparable among microhabitats, while mayfly abundance was highest on mosses and lowest on silt. NMDS ordination did not group assemblages according to microhabitat type, which may reflect the greater influence of physical and chemical water properties. In both catchments and all microhabitats, mayfly assemblages were dominated by grazers/scrapers at upstream sites and by detritivores at downstream sites. Active filter feeders were more abundant in microhabitats with silt substrates and lower current velocities. This study demonstrated that certain mayfly species strongly preferred a specific microhabitat type, reflecting their water current preferences and feeding strategies, while other species shifted between microhabitats, likely in search of food resources and shelter. The results emphasize the importance of habitat heterogeneity in supporting diverse communities in karst rivers.

CHANGES IN THE MORPHOMETRIC PARAMETERS OF THE BASILAR ARTERY WALL WHEN ITS COURSE IS GEOMETRICALLY ABNORMAL (KINKING AND COILING OF THE BASILAR ARTERY)

2020 ◽  
pp. 48-52
Author(s):  
Наталия Тимофеевна Алексеева ◽  
Светлана Валерьевна Клочкова ◽  
Дмитрий Борисович Никитюк ◽  
Арина Михайловна Карандеева ◽  
Анна Гуладиевна Кварацхелия
Keyword(s):  
Elastic Properties ◽  
Basilar Artery ◽  
Vascular Wall ◽  
Acute Angle ◽  
Morphometric Parameters ◽  
Geometric Configuration ◽  
Outer Diameter ◽  
Significant Excess ◽  
Study Results ◽  
Basilar Arteries

Цель - выявить закономерность изменения морфометрических параметров базилярной артерии при изменении геометрической конфигурации ее хода с формированием острого угла, спирали или петли. Материал и методы. Исследовали 16 нефиксированных макропрепаратов головного мозга. Анатомию базилярной артерии изучали методами макро-и микропрепарирования, проводили ангиоморфометрию с последующей обработкой результатов исследования. Результаты. В ходе ангиоморфометрии 16 базилярных артерий в 68,75 % случаев выявлен нормальный линейный ход сосуда. Величина показателя упругих свойств составила 0,33±0,01. В 31,25 % случаев выявлено изменение геометрической конфигурации хода базилярной артерии. В 40 % случаев от общего числа единиц с патологическим ходом сосуда формируется кинкинг базилярной артерии, в 60 % случаев - койлинг. Величина показателя упругих свойств составила 0,34±0,01, что существенно не отличается от средних значений для артерий мышечного типа. Исследование длины, толщины стенки, наружного диаметра и диаметра просвета сосудов показало значительное превышение данных показателей в сравнении с таковыми при нормальным линейном ходе артерий. Выводы. Данные, полученные в ходе исследования, свидетельствуют об увеличении наружного диаметра базилярной артерии, толщины сосудистой стенки и внутреннего просвета в случае образования кинкинга или койлинга. Objective - to reveal the pattern of changes in the morphometric parameters of the basilar artery when the geometric configuration of its course alters with the formation of an acute angle, spiral or loop. Material and methods. We studied 16 non-fixed human brain specimens. Anatomy of the basilar artery was studied by methods of macro- and micro-preparation, angiomorphometry was carried out with subsequent processing of the results of the study. Results. During angiomorphometry of 16 basilar arteries, normal straight course of the vessel was detected in 68,75 % of the cases. The value of the elastic properties index was 0,33±0,01. In 31,25 % of cases, a change in the geometric configuration of the course of the basilar artery was revealed. The basilar artery kinking was formed in 40 % and coiling - in 60 % of the total number of all cases with abnormal vessel course. The value of the elastic properties index was 0,34±0,01, which is not significantly different from the average values for muscle-type arteries. The study of the length, wall thickness, outer diameter and lumen diameter of the vessels showed a significant excess of these parameters in comparison with the vessels with normal linear course. Conclusions. The data obtained during the study indicate an increase in the outer diameter of the basilar artery, as well as an increase in the thickness of the vascular wall and the inner lumen in the case of kinking or coiling.

scholarly journals Laju Pertumbuhan Rumput Laut Gracilaria sp Melalui Budidaya IMTA (Integrated Multi Trophic Aquaculture) di Pantai Geger, Nusa Dua, Kabupaten Badung, Bali

2017 ◽  
Vol 4 (2) ◽  
pp. 191
Author(s):  
Kadek Yudiastuti ◽  
I Gusti Bagus Sila Dharma ◽  
Ni Luh Putu Ria Puspitha
Keyword(s):  
Water Quality ◽  
Design Method ◽  
Salt Water ◽  
Mesh Size ◽  
General Characteristic ◽  
Quality Parameters ◽  
Seaweed Cultivation ◽  
Randomized Design ◽  
Physical And Chemical ◽  
Chemical Water

Gracilaria sp is red alga which belong to class rhodophyceae. It can grow in shallow salt water with a general characteristic is having a cylindrical and branched thallus form. Seaweed cultivation can be performed through IMTA (Integrated Multi Trophic Aquaculture) method. The basic principle of cultivation through the IMTA method is utilizing service of the low thropic level species in marine ecosystems, such as shells and seaweed.  This method is believed to be able to overcome the environmental problems caused by cultivation activities, such as feces and uneaten feed. This research was perfomed 45 days, from February 25 to April 11, 2017. It was held at Geger Beach, Nusa Dua, Badung Regency, Bali, using a complete randomized design method that consist of three treatments and three repetition for each treatment. Treatment control (T1) consisted of 10 bunches of seaweed 100 grams without the abalone, treatement 2 (T2) consisted of 10 bunches of seaweed 100 grams and 20 abalones and treatement 3 (T3) consisted of 10 bunches of seaweed 100 grams and 40 abalones. The result showed that specific growth rate in Gracilaria sp.  was highest in treatment T1, compared to treatment T2 and T3. This was caused by the cage construction of abalone amd the present of small mesh size net to cover the seaweed  planting, which made the growth was not optimal.  However, the use of a nets system in seaweed cultivation could minimize the loss of thallus. It was proved by the survival rate of seaweed in first, second and third, that is averagely high, ranging from 90% to 100%. Physical and chemical water quality parameters are also measured, and It showed that the water quality was suitable for the cultivation of both, seaweed and abalone.

scholarly journals Stream plant chemistry as indicator of acid sulphate soils in Sweden

2008 ◽  
Vol 14 (1) ◽  
pp. 83 ◽  
Author(s):  
K. LAX
Keyword(s):  
Surface Waters ◽  
Stream Water ◽  
Low Ph ◽  
Fontinalis Antipyretica ◽  
Acid Sulphate ◽  
Fine Grained ◽  
Acid Sulphate Soils ◽  
Trace Element Chemistry ◽  
Study Results ◽  
The Impact

Results from the biogeochemical mapping (roots of aquatic plants and Fontinalis antipyretica) conducted by the Geological Survey of Sweden (SGU) reflects the metal load of surface waters draining acid sulphate (AS) soils in Sweden. In this study, results from the biogeochemical, soil geochemical and Quaternary mapping programmes at SGU were used to investigate the impact of fine-grained deposits hosting AS soils on stream water trace element chemistry in two separate areas. In the area around Lake Mälaren, postglacial sediments contain the highest levels of most trace elements studied. Owing to the low pH of AS soils and subsequent leaching, levels of nickel (Ni), cobalt (Co), copper (Cu), sulphur (S), yttrium (Y), uranium (U), tungsten (W), and molybdenum (Mo) were significantly elevated in aquatic roots. Levels were lower in the Skellefteå area, which may be explained by lower concentrations in source deposits. Concentrations of arsenic (As) and lead (Pb) were normal or impoverished in biogeochemical samples from postglacial, finegrained sediment areas. Maps based on ratios (Ni:Pb or Y:Pb) in biogeochemical samples can, together with results from Quaternary mapping, be used to predict areas with AS soils in Sweden.;

scholarly journals Physical and Chemical Quality Profile of Lamb Meat Which Was Swamp Buffalo’s Rumen Liquid Based Fodder-Fed

2019 ◽  
Vol 11 (5) ◽  
pp. 547
Author(s):  
Tintin Rostini ◽  
Danang Biyatmoko ◽  
Irwan Zakir ◽  
Arief Hidayatullah
Keyword(s):  
Chemical Quality ◽  
Lamb Meat ◽  
Test Study ◽  
Randomized Design ◽  
Quality Profile ◽  
Study Results ◽  
Swamp Buffalo ◽  
Physical And Chemical Quality ◽  
Physical And Chemical

This study aims to know the effect of swamp buffalo’s rumen liquid based fodder toward physical and chemical quality of lamb meat. This study used 12 male Kacang goats at age of 10-12 months with weight around 12±1.2 kg. Method used in this study was Completely Randomized Design with 4 treatments repeated for 3 times until it reached 12 units of trials. The treatments consist of: (PS), regular fodder given by breeder (PFCK1) 25% rumen liquid based fodder + 75% PS. (PFCK2), 50% rumen liquid based fodder + 50% PS. (PFCK3) 75% rumen liquid based fodder + 25% PS. Data was statistically analyzed by using variance analysis. Difference between treatments was tested by using Duncan’s New Multiple Range Test. Study results showed that the usage of rumen liquid based fodder of 75% increased protein and lamb fat content (P < 0.05), the lamb meat was physically more tender (P < 0.05). The conclusion is swamp buffalo’s rumen liquid could be used to enhance lamb meat quality.

scholarly journals Analisa Kualitas Air Fisika dan Kimia di Danau Pampait (Physical and Chemical Water Quality Analysis in Lake Pampait)

2020 ◽  
Vol 7 (1) ◽  
pp. 75-87
Author(s):  
Ummi Suraya ◽  
Lilia Lilia
Keyword(s):  
Water Quality ◽  
Dissolved Oxygen ◽  
Aquatic Organisms ◽  
Quality Analysis ◽  
Middle Section ◽  
Water Quality Analysis ◽  
Average Temperature ◽  
Physical And Chemical ◽  
Chemical Water ◽  
Quality Measurements

This study aims to determine the water condition of Lake Pampait, KamelohBaru Village, Sebangau District, Palangka Raya City, measured from physical and chemical water quality as a measure of the condition of the water quality in Lake Pampait. The study was conducted for approximately 2 (two) months, namely from June to July 2018. Sampling was carried out in 3 (three) stations, namely inlet (station I), middle section (station II) and outlets (station III). The physical and chemical water quality measurements are carried out directly, namely temperature, brightness, depth, pH (Degrees of Acidity) and DO (Dissolved Oxygen) while indirectly or analyzed in the laboratory are PO4 (Phosphate), NO3 (Nitrate) and NH3 (Nitrate) Ammonia). The results of research on physical and chemical water quality is an average temperature of 23.7 oC. Brightness 28.75 cm, Depth 4.25 m, Degree of Acidity (pH) with an average of 6.03, and Dissolved Oxygen (DO) 2.93 mg/L, Phosphate (PO4), Nitrate (NO3), and Ammonia (NH3) ) 0.932 mg/L, it can be concluded that Lake Pampait can be said to be still not polluted and is still considered good for the life of fish and other aquatic organisms.

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