Spatial and seasonal variations in the stable C isotope composition of dissolved inorganic carbon and in physico-chemical water parameters in the Plitvice Lakes system

2011 ◽  
Vol 47 (3) ◽  
pp. 316-329 ◽  
Author(s):  
Jadranka Barešić ◽  
Nada Horvatinčić ◽  
Zvjezdana Roller–lutz
Keyword(s):  
Seasonal Variations ◽  
Inorganic Carbon ◽  
Dissolved Inorganic Carbon ◽  
Isotope Composition ◽  
Water Parameters ◽  
Physico Chemical ◽  
Chemical Water ◽  
Plitvice Lakes

scholarly journals Comparison of the 14C activity of groundwater and recent Tufa from Karst areas in Yugoslavia and Czechoslovakia

Radiocarbon ◽  
1989 ◽  
Vol 31 (03) ◽  
pp. 884-892 ◽  
Author(s):  
Nada Horvatinčć ◽  
Dušan Srdoč ◽  
J A N Šilar ◽  
Hana Tvrdíková
Keyword(s):  
Inorganic Carbon ◽  
Dissolved Inorganic Carbon ◽  
Chemical Properties ◽  
Spring Water ◽  
Geologic Structure ◽  
Recharge Area ◽  
Karst Springs ◽  
Physico Chemical ◽  
Karst Areas ◽  
Plitvice Lakes

14C activity of dissolved inorganic carbon (DIC) in water and in recent tufa samples in several karst areas of Yugoslavia and Czechoslovakia was measured. Groundwater from 11 karst springs were measured for their isotopic content (14C, 3H, 13C), chemical composition (HCO3 −, Ca2+, Mg2+) and physico-chemical properties (temperature, pH). Seasonal variations of the 14C activity of DIC in two karst springs in Plitvice Lakes area, Yugoslavia, were measured systematically from 1979 – 1987.14C activity of recent tufa samples from several locations downstream were also measured. The activity of DIC in karst spring water in both countries ranged from 63–87 pMC, which is attributed to differences in geologic structure of the recharge area, topsoil thickness and composition. Grouping of 14C activities of DIC ca (82±4)% is evident. Tritium activity at all the springs indicated short mean residence time (1–10 yr). Concentration of HCO3 −, Ca2+ and Mg2+ in spring water varied with geomorphology. 14C activity of streamwater and recent tufa increased downstream from karst springs due to the exchange between atmospheric CO2 and DIC.

scholarly journals Measurements of the stable carbon isotope composition of dissolved inorganic carbon in the northeastern Atlantic and Nordic Seas during summer 2012

2015 ◽  
Vol 7 (1) ◽  
pp. 127-135 ◽  
Author(s):  
M. P. Humphreys ◽  
E. P. Achterberg ◽  
A. M. Griffiths ◽  
A. McDonald ◽  
A. J. Boyce
Keyword(s):  
Carbon Isotope ◽  
Inorganic Carbon ◽  
Dissolved Inorganic Carbon ◽  
Isotope Composition ◽  
Stable Carbon Isotope ◽  
Carbon Isotope Composition ◽  
Stable Carbon ◽  
Nordic Seas ◽  
Stable Carbon Isotope Composition ◽  
Northeastern Atlantic

Abstract. The stable carbon isotope composition of dissolved inorganic carbon (δ13CDIC) in seawater was measured in a batch process for 552 samples collected during two cruises in the northeastern Atlantic and Nordic Seas from June to August 2012. One cruise was part of the UK Ocean Acidification research programme, and the other was a repeat hydrographic transect of the Extended Ellett Line. In combination with measurements made of other variables on these and other cruises, these data can be used to constrain the anthropogenic component of dissolved inorganic carbon (DIC) in the interior ocean, and to help to determine the influence of biological carbon uptake on surface ocean carbonate chemistry. The measurements have been processed, quality-controlled and submitted to an in-preparation global compilation of seawater δ13CDIC data, and are available from the British Oceanographic Data Centre. The observed δ13CDIC values fall in a range from −0.58 to +2.37 ‰, relative to the Vienna Pee Dee Belemnite standard. The mean of the absolute differences between samples collected in duplicate in the same container type during both cruises and measured consecutively is 0.10 ‰, which corresponds to a 1σ uncertainty of 0.09 ‰, and which is within the range reported by other published studies of this kind. A crossover analysis was performed with nearby historical δ13CDIC data, indicating that any systematic offsets between our measurements and previously published results are negligible. Data doi:10.5285/09760a3a-c2b5-250b-e053-6c86abc037c0 (northeastern Atlantic), doi:10.5285/09511dd0-51db-0e21-e053-6c86abc09b95 (Nordic Seas).

Diurnal variations in carbon isotope composition of dissolved inorganic carbon (DIC) in a freshwater dam reservoir

2006 ◽  
Vol 6 (1-4) ◽  
pp. 53-59 ◽  
Author(s):  
Mariusz Orion-Jędrysek ◽  
Marta Kurasiewicz ◽  
Adriana Trojanowska ◽  
Dominika Lewicka ◽  
Agata Omilanowska ◽  
...  
Keyword(s):  
Carbon Isotope ◽  
Inorganic Carbon ◽  
Dissolved Inorganic Carbon ◽  
Isotope Composition ◽  
Carbon Isotope Composition ◽  
Diurnal Variations ◽  
Dam Reservoir

Occurrence and ecology of Geissleria declivis

Biologia ◽  
2015 ◽  
Vol 70 (1) ◽  
Author(s):  
Barbara Rakowska ◽  
Ewelina Szczepocka
Keyword(s):  
Water Quality ◽  
Geological Structure ◽  
Diatom Species ◽  
Ecological Analysis ◽  
Water Parameters ◽  
Physico Chemical ◽  
The World ◽  
Main Components ◽  
Chemical Water ◽  
Zone Water

AbstractIn the microbenthos of the Czarna Staszowska River (south-eastern Poland), the diatom Geissleria declivis (Hustedt) Lange-Bertalot & Metzeltin, a species rarely noted in Poland, but also in Europe and the world, was recorded. In this study, the taxonomic, morphological and ecological analysis of the diatom species is presented. Also, the specific geological structure of the region of Poland, and physico-chemical water parameters of the river where the species was now observed, are described. The water of that section of the river where G. declivis occurred is included in the oligosaprobic to beta-mesosaprobic zone (Water Quality Class I-II). Limestone and gypsum are the main components of the geological structure of the river valley. Accompanying species of G. declivis were: Achnanthes pusilla (Grun.) De Toni, Amphora copulata (Kütz.) Schoem. & Arch., Fragilaria brevistriata Grun. in Van Heurck, Fragilaria pinnata Ehr., Geissleria decussis (Hust.) Lange-B. & Metz., Hippodonta capitata (Ehr.) Lange-B., Metz. & Witk., Hippodonta costulata (Grun.) Lange-B., Metz. & Witk., Navicula concentrica Carter, Navicula cryptocephala Kütz., Navicula novaesiberica Lange-B., Navicula rostellata Kütz., Nitzschia archibaldii Lange-B., Parlibellus protractoides (Hust.) Witk., Lange-B. & Metz. Taxa that are indicators of very good water quality were: Achnanthes peragalli Brun & Heribaud, Achnanthes subatomoides (Hust.) Lange-B. & Arch., Achnanthidium kranzii (Lange-B.) Round & Bukht., Cymbopleura hybrida (Grun.) Kram., Navicula densilineolata (Lange-B.) Lange-B., Navicula notha Wallace, Nitzschia fibulafissa Lange-B. Taxa preferring waters rich in calcium and chalk were: Aneumastus stroesei (Ostrup) Mann & Stickle, Diploneis parma Cleve, Hippodonta lueneburgensis (Grun.) Lange-B., Metz. & Witk., Navicula gottlandica Grun. in Van Heurck, Navicula jakovljevicii Hust., Navicula moskalii Metz., Witk. & Lange-B., Sellaphora mutatoides Lange-B. & Metz., Sellaphora pseudopupula (Krasske) Lange-B. Navicula oppugnata Hust.

scholarly journals LAKE FITRI IN CHAD: SOCIO-ECONOMIC, ENVIRONMENTAL AND TECHNICAL ASPECTS OF FISHING AND DETERMINATION OF SOME PHYSICO-CHEMICAL WATER PARAMETERS

2020 ◽  
Vol 8 (8) ◽  
pp. 1073-1084
Author(s):  
Djibrine Adoum Oumar ◽  
◽  
Zongo Oumarou ◽  
Zongo Urbain ◽  
Tarnagda Bakary ◽  
...  
Keyword(s):  
Water Parameters ◽  
Technical Aspects ◽  
Physico Chemical ◽  
Chemical Water

scholarly journals Water Quality and Dynamic of Schistosomiasis Intermediate Host Snails in the Lake Areas, District of So-Ava, Southern Benin

2018 ◽  
Vol 6 (6) ◽  
Author(s):  
Moudachirou Ibikounlé1 ◽  
Ablavi A. Onzo-Aboki ◽  
Elokou Alabi ◽  
Samoussou Dine Mahama ◽  
Samoussou Dine Mahama ◽  
...  
Keyword(s):  
Water Quality ◽  
Intermediate Host ◽  
Oxygen Demand ◽  
Control Programme ◽  
Freshwater Snails ◽  
Intermediate Hosts ◽  
Water Parameters ◽  
Physico Chemical ◽  
Physical And Chemical ◽  
Chemical Water

Objectives: Urinary schistosomiasis is known to be endemic in the lake Nokoué areas of the District of So-Ava. For the past ten years, the National Control Programme for Communicable Diseases of the Ministry of Health has been making efforts to control schistosomiaisis morbidity through mass drug treatment with Praziquantel. This study aimed to assess the diversity and dynamic of potential snails known as schistosomiasis intermediate hosts. Methodology and Results: This study was carried out for 12 months (from July 2015 to June 2016) and consisted in the periodical analysis of the physical and chemical water parameters (temperature, oxygen concentration, pH, nitrite and nitrate rates. Salinity, total dissolved solids (TDS) and, biochemical oxygen demand) in relation with diversity, distribution and relative abundance of freshwater snails (Bulinus forskalii, B. globosus and B. truncatus). To this end, seven harvesting sites on Lake Nokoué were, reasonably selected for monthly hydrobiological and malacological data monitoring. The results showed a variable correlation between the dynamic of schistosomiasis intermediate host snailsm and several physico-chemical water parameters. Bulinus globosus was negatively influenced by salinity and nitrate rates while B. forskalii was negatively influenced by pH, Oxygen, TDS, salinity and nitrate rates. The three species of freshwater snails were strongly influenced by the water temperature. Conclusion: The results suggest a seasonal schistosome transmission induced by the seasonal dynamic of intermediate host snails. Water quality seems appropriate to the development of host snails from December to March and would be the strong period of schistosomiasis transmission. However, furthermore studies will need for well understanding the dynamic transmission necessary for developing adapted strategy control.

Excess of sulfate and dissolved inorganic carbon in groundwaters fueled by pyrite oxidation and organic matter loads – A multi-isotope approach

2021 ◽  
Author(s):  
Christoph Malik ◽  
Anna-K. Jenner ◽  
Iris Schmiedinger ◽  
Michael E. Böttcher
Keyword(s):  
Inorganic Carbon ◽  
Dissolved Inorganic Carbon ◽  
Isotope Composition ◽  
Regional Scale ◽  
Pyrite Oxidation ◽  
Nutrient Concentrations ◽  
Agricultural Activity ◽  
Dissimilatory Sulfate Reduction ◽  
Iron Sulfides ◽  
Porous Aquifer

<p>The biogeochemistry of sulfur and carbon in groundwater of a Quaternary porous aquifer system and associated surface (lake) waters was investigated to identify processes of water mixing and the sources of dissolved sulfate and dissolved inorganic carbon (DIC). The study area is situated in North-Eastern Germany (Mecklenburg-Western Pomerania) close to the Baltic Sea coastline. The area is under impact by agricultural activity on a regional scale. A major goal was to identify the natural and anthropogenic key hydrobiogeochemical processes controlling the coupled element cycles upon groundwater development. Besides major and minor elements, redox-sensitive trace elements, nutrients, and stable mulit-isotope signatures (H, C, O, S) were considered.</p><p>While water isotopes of most groundwaters are positioned on the meteoric water line, surface waters are affected by an evaporation-induced enrichment of heavy isotopes. These shifts allow for a quantification of mixing proportions in influenced groundwater wells between direct precipitation-derived groundwater and  infiltrating lake water born fractions.</p><p>Major element hydrochemical and the carbon isotope composition of DIC indicate soil CO<sub>2</sub> and the subterrestrial dissolution of carbonate minerals within the aquifer matrix as primary sources for DIC. Furthermore, contributions from oxidized dissolved organic carbon (DOC) under water-saturated conditions are found.</p><p>The coupled sulfur and oxygen isotope composition of dissolved sulfate indicates an origin dominatly  from the subterrestrial oxidation of iron sulfides, mainly pyrite. These iron sulfides are found in the sediments making the modern porous aquifer, in the study area with a deduced sulfur isotope composition of about -12 per mil vs. VCDT. These findings coupled to enhanced loads in dissolved iron and manganese, but low nutrient concentrations indicate nitrate as an important driver for lithoautothrophic pyrite oxidation. At several sites, the enhanced sulfate loads led to dissimilatory sulfate reduction and, thereby, to in-situ transformation of DOC (and/or Methane) to DIC. The enhancements of sulfate and DIC seems to be a typical feature in North German younger groundwaters and strongly (in)directly impacted by anthropogenic forces.</p>

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