The quality of sediment in shallow water bodies – Long-term screening of sediment in Czech Republic. A new perspective of nutrients and organic matter recycling in agricultural landscapes

2019 ◽  
Vol 127 ◽  
pp. 151-159 ◽  
Author(s):  
Marek Baxa ◽  
Jana Šulcová ◽  
Lenka Kröpfelová ◽  
Jan Pokorný ◽  
Jan Potužák
Keyword(s):  
Organic Matter ◽  
Czech Republic ◽  
Shallow Water ◽  
Agricultural Landscapes ◽  
Water Bodies ◽  
New Perspective ◽  
Organic Matter Recycling

scholarly journals Organic carbon rich sediments: benthic foraminifera as bio-indicators of depositional environments

2019 ◽  
Author(s):  
Elena Lo Giudice Cappelli ◽  
Jessica L. Clarke ◽  
Craig Smeaton ◽  
Keith Davidson ◽  
William E. N. Austin
Keyword(s):  
Organic Matter ◽  
Carbon Content ◽  
Benthic Foraminifera ◽  
Organic Content ◽  
Depositional Environments ◽  
Carbon Burial ◽  
Actual Change ◽  
Freshwater Inputs

Abstract. Fjords have been described as hotspots for carbon burial, potentially playing a key role within the carbon cycle as climate regulators over multiple timescales. Nevertheless, little is known about the long-term fate of the carbon that may become stored in fjordic sediments. One of the main reasons for this knowledge gap is that carbon arriving on the seafloor is prone to post-depositional degradation, posing a great challenge when trying to discriminate between an actual change in carbon deposition rate and post depositional carbon loss. In this study, we evaluate the use of modern benthic foraminifera as bio-indicators of carbon content in six voes (fjords) on the west coast of Shetland. Benthic foraminifera are sensitive to changes in carbon content in the sediments, and changes in their assemblage composition therefore reflect synchronous variations in the quantity and quality of carbon reaching the seafloor. We identified four environments based on the relationship between benthic foraminiferal assemblages and carbon content in the sediments: 1) Land-locked regions influenced by riverine/freshwater inputs of organic matter, namely the head of fjords with a restricted geomorphology; 2) Stressed environments with a heavily stratified water column and sediments rich in organic matter of low nutritional value; 3) Depositional environments with moderate organic content and mild or episodic current activity; 4) Marginal to coastal settings with low organic content, such as fjords with an unrestricted geomorphology. We conclude that foraminifera potentially provide a tool to disentangle primary carbon signals from post-depositional degradation and loss of carbon because of their environmental sensitivity and high preservation potential in the sedimentary record.

scholarly journals Load of Aeromonas salmonicida in Swamp Water and it's Effect on Tilapia (Oreochromis mossambicus)

1970 ◽  
Vol 15 ◽  
pp. 165-168 ◽  
Author(s):  
Habiba Khatun ◽  
Rowshatul Afza ◽  
M Iqbal Hossain ◽  
M Afzal Hussain ◽  
AR Khan ◽  
...  
Keyword(s):  
Organic Matter ◽  
Shallow Water ◽  
Aquatic Ecosystems ◽  
Oreochromis Mossambicus ◽  
Aeromonas Salmonicida ◽  
Water Bodies ◽  
Fish Culture ◽  
Unemployment Problem ◽  
Lentic Water

Swamps are one of those types of lentic water bodies, which form links between terrestrial and aquatic ecosystems. Dehadrai and Tripathi (1976) have characterized these water bodies as waterlogged, shallow water areas with a loose peaty bottom, rich in decaying organic matter retaining water either periodically or shrinking or drying summer months. There are numerous water bodies, including swamps, present in Bangladesh. But all of these water bodies are not used for scientific fish culture. To meet the increasing protein demand and to solve the unemployment problem in Bangladesh, swamps should be used for fish culture scientifically. This may also be helpful to destroy the habitat of many biological vectors such as mosquitoes. doi: 10.3329/jbs.v15i0.2158 J. bio-sci. 15: 165-168, 2007

Ensuring Integrity of High Energy Piping in the NPP’s of the Czech Republic

2009 ◽  
Author(s):  
Jiri Zdarek ◽  
Jan Dotrel ◽  
Vaclav Jarolimek
Keyword(s):  
Czech Republic ◽  
High Energy ◽  
Basic Principles ◽  
The Czech Republic ◽  
Piping Systems ◽  
Defense In Depth

An approach of ensuring the quality of piping of NPP’s on the Czech Republic is described, with focus on high energy piping systems. Basic principles of this approach are described that are aimed to ensure the safety goals while maintaining the effectiveness of NPP operation during its long-term life. This approach ensures defense in depth of the piping. Its application on the high energy piping on +28.8 m level of WWER 1000 type NPP is demonstrated.

Quality of care in long-term care departments in mental health facilities across the Czech Republic

2018 ◽  
Vol 28 (5) ◽  
pp. 885-890 ◽  
Author(s):  
Lucie Kalisova ◽  
Marek Pav ◽  
Petr Winkler ◽  
Jiri Michalec ◽  
Helen Killaspy
Keyword(s):  
Mental Health ◽  
Czech Republic ◽  
Quality Of Care ◽  
Long Term Care ◽  
Health Facilities ◽  
Term Care ◽  
The Czech Republic ◽  
Mental Health Facilities

scholarly journals The Long-Term Development of Water Bodies in the Context of Land Use: The Case of the Kyjovka and Trkmanka River Basins (Czech Republic)/ Dlouhodobý vývoj vodních ploch v povodí Kyjovky a Trkmanky v kontextu využití krajiny (Česká republika)

2014 ◽  
Vol 22 (4) ◽  
pp. 39-50 ◽  
Author(s):  
Marek Havlíček ◽  
Renata Pavelková ◽  
Jindřich Frajer ◽  
Hana Skokanová
Keyword(s):  
Land Use ◽  
World War Ii ◽  
Czech Republic ◽  
River Basin ◽  
Driving Forces ◽  
Land Use Changes ◽  
River Basins ◽  
Water Bodies ◽  
Land Use Development

Abstract The long-term development of water bodies is investigated in this article using the cases of two river basins with similar natural conditions: the Kyjovka and Trkmanka River Basins in the Czech Republic. Using old topographic maps, land use development was assessed and the analysis of driving forces of land use changes was carried out. The essential land use changes in these areas are connected with the processes of agricultural intensification and urbanisation. The largest area of water bodies was recorded in both river basins in 1763. In the second half of the 19th century, the disappearance of most water bodies in the two basins was significantly affected by the above-mentioned driving forces. After World War II, some of the water bodies in the Kyjovka River Basin were restored and new ponds were established. In contrast, no significant water bodies were restored in the Trkmanka River Basin.

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