scholarly journals Woodland Ponds as an Important Habitat of Hippeutis Complanatus (Linnaeus 1758) Occurrence - Effect of Environmental Factors and Habitat Preferences

2014 ◽  
Vol 33 (2) ◽  
Author(s):  
Aneta Spyra
Keyword(s):  
Organic Matter ◽  
Environmental Factors ◽  
Bottom Sediments ◽  
Habitat Preferences ◽  
Organic Matter Content ◽  
Matter Content ◽  
Freshwater Snails ◽  
Fallen Leaves ◽  
Woodland Ponds ◽  
Important Habitat

AbstractSpyra A. Woodland ponds as an important habitat of Hippeutis complanatus (Linnaeus 1758) occurrence - effect of environmental factors and habitat preferences. Ekológia (Bratislava), Vol. 33, No. 2, p. 101-115, 2014.In industrial areas, woodland ponds are refuges of biological diversity. The impact of environmental factors such as the physico-chemical properties of water, organic matter content in bottom sediments and various types of substratum on the occurrence of Hippeutis complanatus were assessed. In Poland, it is considered to be a species with an established but unspecified risk, deserving the status of endangered species due to the decline of wetland environments. A Canonical Correspondence Analysis (CCA) revealed associations between the distribution patterns of freshwater snails species and the concentration of nitrates (NO3) and calcium (Ca) as well as pH and the organic matter content in the bottom sediments. Based on statistical relationships, results of study suggest that the kind of substratum (Typha latifolia remains, Phragmites australis remains, fallen leaves of waterside trees) has an impact on the occurrence of freshwater snails including Hippeutis complanatus for which the preferred substratum is the fallen leaves of waterside trees and sites with a high content of organic matter in bottom sediments. The study has shown that isolated water bodies located in forest complexes can be refuges for species that occur in small numbers in other types of aquatic environments.

HEAVY METAL SPECIATION IN BOTTOM SEDIMENTS OF THE VYSHNEVOLOTSKY RESERVOIR

2018 ◽  
pp. 46-54
Author(s):  
O. A. Lipatnikova
Keyword(s):  
Heavy Metal ◽  
Organic Matter ◽  
Bottom Sediments ◽  
Metal Speciation ◽  
Organic Matter Content ◽  
Water Reservoir ◽  
Matter Content ◽  
Heavy Metal Speciation ◽  
Mobile Forms ◽  
Manganese Hydroxides

The study of heavy metal speciation in bottom sediments of the Vyshnevolotsky water reservoir is presented in this paper. Sequential selective procedure was used to determine the heavy metal speciation in bottom sediments and thermodynamic calculation — to determine ones in interstitial water. It has been shown that Mn are mainly presented in exchangeable and carbonate forms; for Fe, Zn, Pb и Co the forms are related to iron and manganese hydroxides is played an important role; and Cu and Ni are mainly associated with organic matter. In interstitial waters the main forms of heavy metal speciation are free ions for Zn, Ni, Co and Cd, carbonate complexes for Pb, fulvate complexes for Cu. Effects of particle size and organic matter content in sediments on distribution of mobile and potentially mobile forms of toxic elements have been revealed.

scholarly journals Total phosphorus and organic matter content in bottom sediments of lake under restoration measures with iron treatment

2010 ◽  
Vol 10 (3-4) ◽  
pp. 139-145 ◽  
Author(s):  
Katarzyna Kowalczewska-Madura ◽  
Renata Dondajewska ◽  
Ryszard Gołdyn
Keyword(s):  
Organic Matter ◽  
Lake Sediments ◽  
Total Phosphorus ◽  
Bottom Sediments ◽  
Organic Matter Content ◽  
Dry Weight ◽  
Matter Content ◽  
Iron Treatment ◽  
Iron Sulphate ◽  
Restoration Measures

Total phosphorus and organic matter content in bottom sediments of lake under restoration measures with iron treatmentRusałka Lake is a shallow, man-made, strongly eutrophicated reservoir, being a place of recreational activities for Poznan citizens. Restoration measures with the use of iron sulphate were conducted in years 2006-2007. Phosphorus and organic matter concentrations in lake sediments were analyzed in years 2005-2007 at two research stations (profundal and littoral) to determine its changes under the influence of restoration. Greater phosphorus concentrations were noted in profundal (max 1.55 mg P g-1dry weight (DW)) than in littoral (max 0.98 mg P g-1DW). An increase of P amount in sediment was observed after iron treatment. Among phosphorus fractions Res-P dominated, i.e. phosphorus biologically unavailable for organisms. Organic matter content reached 23.1% in profundal, while 14.8% in littoral. Its amount decreased in following years.

scholarly journals Analysis of cultivable aerobic bacteria isolated from bottom sediments in the Wijdefjorden region, Spitsbergen

2011 ◽  
Vol 32 (2) ◽  
pp. 181-195 ◽  
Author(s):  
Iwona Konieczna ◽  
Barbara Wojtasik ◽  
Marek Kwinkowski ◽  
Dorota Burska ◽  
Kamil Nowiński ◽  
...  
Keyword(s):  
Organic Matter ◽  
Bottom Sediments ◽  
Dna Analysis ◽  
Organic Matter Content ◽  
Matter Content ◽  
Resistance Testing ◽  
Aerobic Bacteria ◽  
Growth Media ◽  
Sampling Station ◽  
Bacterial Strains

Analysis of cultivable aerobic bacteria isolated from bottom sediments in the Wijdefjorden region, SpitsbergenThe paper presents the first physicochemical and microbiological studies conducted in the northern area of Svalbard (Spitsbergen). Ten sediment samples were collected from the bottom of the longest fjord in the region, Wijdefjorden. Bottom sediments from ten lakes lo- cated along the shores of Wijdefjorden and Woodfjorden were also sampled. Organic matter content (LOI), water content, temperature, pH, and salinity of the sediments were determined. The quantity of aerobic bacteria cultured on various growth media at 4°C, 14°C, and 37°C ranged from 102to 106cfu/g of wet sediment mass, depending on the type of sampling station (fjord or lake). The number of bacteria did not correlate with organic matter content. Out of the 37 bacterial strains isolated from Wijdefjorden, 48% and 70% revealed ureolytic and proteolytic activity, respectively. The proportion of freshwater strains with ureolytic and proteolytic activitywas 32% and 55%, respectively. Antibiotic resistance testing indicated that bacterial strains from the bottom sediments of the lakes were resistant to 8 antibiotics (out of the 18 investigated). Possible sources of this resistance are discussed. Using 16S DNA analysis, bacterial isolates from the lakes were identified asPseudomonassp., whereas frequently occurring strains in bottom sediment of the fjord werePseudoalteromonassp.

Predicting Scottish topsoil organic matter content from colour and environmental factors

2014 ◽  
Vol 66 (1) ◽  
pp. 112-120 ◽  
Author(s):  
M. J. Aitkenhead ◽  
D. Donnelly ◽  
L. Sutherland ◽  
D. G. Miller ◽  
M. C. Coull ◽  
...  
Keyword(s):  
Organic Matter ◽  
Environmental Factors ◽  
Organic Matter Content ◽  
Matter Content

scholarly journals The muddy bottom sediments of the old river beds of the lower Vistula

2016 ◽  
Vol 16 (3) ◽  
pp. 141-146
Author(s):  
Daria Mimier ◽  
Janusz Żbikowski
Keyword(s):  
Organic Matter ◽  
Water Content ◽  
Bottom Sediments ◽  
Organic Matter Content ◽  
Oxygen Demand ◽  
Dry Weight ◽  
Matter Content ◽  
Sediment Oxygen Demand ◽  
Muddy Bottom ◽  
High Sediment

Abstract The main objective of this study was to characterize the muddy bottom sediments of three hydrologically different old river beds of the lower Vistula, located in the vicinity of Toruń: Port Drzewny, Martwa Wisła and Przybysz. Samples were taken at monthly intervals from April to November 2015 from two (Martwa Wisła and Przybysz) or three sampling sites (Port Drzewny) located in the central parts of the reservoirs. The bottom sediments of these water bodies were characterized by a low water content and organic matter content expressed as a percentage of dry weight, high organic matter content expressed in units of weight, as well as a high sediment oxygen demand. The most distinct reservoir was Martwa Wisła, most likely due to the lack of a connection with the River Vistula.

Macrozoobenthic Community in Different Mangrove Condition: Relation with Chemical-Physical Sediment Characteristics

2018 ◽  
Vol 1 (2) ◽  
Author(s):  
Muhammad Isman ◽  
Supriadi Mashoreng ◽  
Shinta Werorilangi ◽  
Rantih Isyrini ◽  
Rastina Rastina ◽  
...  
Keyword(s):  
Organic Matter ◽  
Organic Matter Content ◽  
Mesh Size ◽  
Matter Content ◽  
Total Organic Matter ◽  
Sediment Characteristics ◽  
Pvc Pipe ◽  
Fallen Leaves ◽  
Sediment Ph ◽  
Macrozoobenthic Community

The existence of mangrove in coast areas have both ecologic and physical important functions.  Mangrove is a high productive ecosystem. Litters from fallen leaves and twigs are organic sources for macrozoobenthic life.  The aim of this research was to determine the response of macrozoobenthics on total organic matter content and other chemical-physico characters of sediments due to differences in mangrove conditions. This research was conducted from May to September 2016 in Sub-district of Ampallas, Distric of Mamuju, Province of West Sulawesi, Indonesia. Sediments in 20 cm2 transects were collected using small shovel to obtain the macrozoobenthic samples. The sediments contained macrozoobenthics were sieved using a 1 mm mesh size sieve net. Four sampling sites were chosen, each to represent areas with no mangroves, low, medium, and high densities.  The total of organic matter samples were collected using 2 inch diameter of PVC pipe cores, which were analyzed further using Loss by Ignition method.  Besides total of organic matter, several parameters (i.e. redox potential, sediment pH, salinity, temperature, and dissolved oxygen) were measured.  The results showed that gastropods dominated the existed macrozoobenthics.  Gastropods and oligochaete lived in greater amounts in high mangrove density site with higher organic matter content and fine substrate.Keywords: mangroves, macrozoobenthics, organic matter, Distric of Mamuju 

scholarly journals Occurance of geophilic of keratinophilic fungi in bottom sediments of lakes of various trophicity

2014 ◽  
Vol 28 (2) ◽  
pp. 171-184 ◽  
Author(s):  
Teresa Korniłłowicz
Keyword(s):  
Organic Matter ◽  
Bottom Sediments ◽  
Pure Water ◽  
Organic Matter Content ◽  
Matter Content ◽  
Keratinophilic Fungi ◽  
Basin Management ◽  
Agricultural Region ◽  
Management Method

The present investigations proved that colonization of bottom sediments with geophilie kerationophilic fungi in lakes of different trophicity was conditioned by the organic matter content. There was a relationship between occurrence of microorganisms and the basin management method. The greatest concentration of keratinophilic fungi where species typical of sewages polluted with them dominated was found in sediments of a basin used for recreation. In sediments of a lake located in the agricultural region there was a domination of species charakteristic of pure water in respect to sanitary regulations.

Sign in / Sign up

Export Citation Format

Share Document