The responses of benthic fauna to channel modifications mountain rivers by low-head barriers are poorly understood. study aimed (1) estimate the impact two different barrier types: concrete sills and block ramps, on Oligochaeta Trichoptera communities in small Carpathian (Porębianka Mszanka) southern Poland, (2) determine changes these Porębianka River after 50 years comparing current data with historical data. Both types led a transformation from lotic more lentic habitats. research shows...

The effects of the long-term contamination water reservoirs with mine effluents were investigated at an abandoned site in Upper Silesia, southern Poland. studies covered metal content and mobility bottom sediments as well chemistry relation to metals selected macrophytes their physiology composition phyto- zooplankton communities. Although it is 40 years since mining ceased, reservoir are still heavily contaminated cadmium, zinc lead concentrations (mg/kg), which vary roughly between...

This article summarizes the studies concerning impact of pollutants on benthic macroinvertebrate communities in mountain and upland rivers southern Poland. The Carpathian Raba River, which 1960s retained its natural character had good water quality, was considered as a reference terms communities. other two analyzed were polluted to different degrees. Dunajec River contaminated mainly by sewage from small towns treatment plant, while Vistula Upper Silesian Industrial Region saline waters...

The background nickel (Ni) concentrations in the sediments of two sub-mountain reservoirs (Dobczyce and Czorsztyn) situated Carpathian Flysh (southern Poland) were evaluated. Ni (15.6–83.1 µg g−1 dry wt.) both reservoir affected mainly by high content surrounding watershed. Distribution elevated mostly revealed an impact long-range transport influenced flow main tributary. spatial pattern was mineral compounds Fe, Mn, Al, to a lesser degree organic matter silt clay fractions investigated...

The diversity of rotifers was studied in three artificial water bodies (Azure Lake, Yellow and Purple Lake), which were once pyrite mines. physicochemical parameters the zooplankton composition determined. Azure Lake had a pH 3.4–6.9, conductivity values 165–194 µS cm− 1, low concentrations sulphate, calcium, magnesium, copper, iron, while other lakes 2.6–2.9, 1636–3400 high sulphate (up to 2863 mg dm− 3), Cu 2650 µg Fe 178.3 3). rotifer community comprised 27 taxa (15 13 14 Lake). We also...

The authors tested the hypothesis that zooplankton diversity and density are affected by presence of cyanotoxins in water. focused on 4 oxbow lakes Vistula River southern Poland, which subjected to mass cyanobacterial development. In 2 oxbows (Piekary Tyniec), microcystins released into water were found. highest concentration (0.246 μg/L) was observed for LR. Zooplankton showed a weak response Shannon index (H') total decreased Piekary Tyniec during periods when microcystin concentrations...

The aim of this study was to determine the relationships in microbial trophic network underpinning them about communities plankton ciliates shallow oxbow lakes Vistula River southern Poland (Jeziorzany 1, Jeziorzany 2, Piekary, Tyniec). components (phytoplankton, ciliates, zooplankton) were grouped by dietary preference. studied oxbows differed physicochemical parameters and phytoplankton. Cyanobacteria dominated total biomass phytoplankton Tyniec oxbow, big green algae (>30 μm) Piekary...

We studied the physicochemical and biological characteristics of Dombrovska pit lake in Ukraine. The formed an abandoned opencast potassium salt mine is one most saline inland water bodies world. It 85 m deep (November 2015) annual inflow about 2 Mm3 water. has two distinct layers. mesohaline surface (0–5 m) layer well oxygenated slightly alkaline (pH = 7.5–8.8). Its mineralization, expressed as dry mass, was 50–134 g dm− 3, its electrical conductivity (EC) 58–134 mS cm− 1. underlying...

Eutrophication processes occurring in the Carpathian dam reservoirs (southern Poland) have resulted a drastic increase of incidences decrease pH and oxygen content near-bottom water, which may affect metal remobilization from sediment.The study is aimed to determine buffer capacity effects decreasing on heavy metals (Cd, Pb, Cu, Zn, Mn Fe) sediments Dobczycki Reservoir (DR), Czorsztyński (CR), Rożnowski (RR), right side tributary Vistula River.Buffering leaching accompanied with an acidity...

We studied the variability of physico-chemical parameters in water, and heavy metal contents water sediment over time along Carpathian Biała Tarnowska River (southern Poland) related them to catchment geology, human impact effect barriers as a side aspect. The river was well oxygenated, had pH 7.7–9.5 characterised by low average flow. Temperature, dissolved oxygen did not change significantly, while major ions, NO 3 − , NH 4 + Mn Fe increased gradually river. ion were negatively, nitrate,...

Plankton assemblages can be altered to different degrees by mining. Here, we test how diatoms and cladocerans in ponds along a river southern Poland respond the cessation of long-term Pb-Zn There are two groups subsidence valley. One them (DOWN) was contaminated over period mining, which ceased 2009, whereas other (UP) appeared after mining had stopped. We used (complete organisms plankton their remains sediments) reveal influence environmental change on structure density organisms. The...

Mining is recognized to deeply influence invertebrate assemblages in aquatic systems, but different invertebrates respond ways mining cessation. Here, we document the response of cladoceran assemblage Chechło river, S. Poland (southern Poland) cessation Pb-Zn ore mining. The system includes river and associated subsidence ponds valley. Some were contaminated during period mining, which ceased 2009, while one only appeared after had stopped. We used Cladocera reveal how mine water discharge...

Background. Fish are often used as indicators of pollution levels in water environments. The omnivorous chub inhabiting rivers Europe, including their more polluted parts, is a potentially suitable indicator. information published, however, on the metal accumulation tissues living varyingly waters (both and unpolluted environments) scarce. presently reported study was conducted to examine concentrations selected natural submontane river. Materials methods. Sediment samples (0–5 cm...

We studied the effect of heavy metal contaminations on genome instability Chironomus annularius sensu Strenzke from three sampling sites River Chechło valley in southern Poland and a control site Saraya, Bulgaria. The analysis concentrations sediments at river indicated higher than those fossil reference data (Zn 83-160 times, Pb 64-250 Cd 210-793). According to geoaccumulation index (Igeo), all stations were classified as extremely polluted (Igeo class 6) by Cd, Zn while they much less Cu...

Concentrations of iron and manganese were investigated in 26 sediment samples from the Czorsztyn Reservoir (South Poland).Spatial distribution these metals reservoir is generally linked to grain size sediments.The presence sediments mainly related rock weathering soil erosion processes.Furthermore, enrichment waters follows as a result Dunajec River flowing through Orawsko-Nowotarska Valley, where peat bogs are present.However, anthropogenic influence on concentration levels cannot be...