Eugeniusz Pronin

University of Gdansk | UG · Department of Plant Ecology

Rośliny wodne charakteryzują się dużym przedziałem wartości sygnatury izotopowej węgla (δ13C) oraz azotu (δ15N), który w przypadku węgla (δ13C) może wynosić od -50,0 do +0,4‰, natomiast w przypadku azotu (δ15N) od -15,0 do +20,0‰. Informacje, które niesie z sobą zapis δ13C w materii organicznej roślin może świadczyć m.in. o źródle węgla wykorzystyw...

Sygnatury izotopowe węgla i azotu makrofitów dostarczają informacji na temat pochodzenia tych pierwiastków w roślinie. Niektóre gatunki roślin wodnych, w tym rdestnic występują w zróżnicowanym środowisku m.in. w rzekach i jeziorach. Ekosystemy rzeczne i jeziorne charakteryzują się odmiennymi warunkami siedliskowymi, dlatego zdecydowano się na porów...

The composition of stable carbon and nitrogen isotopes ( δ ¹³ C and δ ¹⁵ N) is widely used for tracking the origin of organic matter (OM) present in lacustrine sediments. These isotopes also define the evolution of OM in food web loops. Charophyte species Nitella flexilis C. Agardh, 1824 can be found in different aquatic environments where it contr...

Przemiany roślinności jezior lobeliowych zależą w znacznym stopniu od procesu ich alkalizacji i eutrofizacji przy udziale człowieka. Z analizy obszernej bazy danych zgromadzonej w latach 1999-2022 przez pracowników Katedry Ekologii Roślin Uniwersytetu Gdańskiego, dotyczącej makrofitów zanurzonych jezior lobeliowych w północnej Polsce wynika, że jez...

In wet peatlands, plant growth conditions are largely determined by local soil conditions, leading to locally adapted vegetation. Despite that Carex species are often the prevailing vascular plant species in fen peatlands of the temperate zone, information about how these species adapt to local environmental conditions is scarce. This holds true es...

W celu poszerzenia słabo rozpoznanej wiedzy na temat składu stabilnych izotopów węgla i azotu (δ 13 C i δ 15 N) roślin jezior lobeliowych przeprowadzono eksperyment laboratoryjny w fitotronie (Binder KBWF 720, Niemcy). Do badań wybrano gatunek Littorella uniflora L. Materiał, w liczbie 200 osobników, pobrano pod koniec października 2020 r. z Jezior...

The variation in stable isotopes composition of aquatic vegetation is related to 1) pH of water for carbon (δ13C) (HCO3-enriched by 7-12‰ compared to CO2); 2) a source of origin for nitrogen (δ15N) (organic nitrogen from wastewater enriched ~5-15‰ compared to inorganic nitrogen). Aquatic vegetation has developed different uptake ways of carbon and...

The soft-water lake vegetation is sensitive to changes in water quality, especially pH and nutrient concentration. Furthermore, little is known about the biogeochemistry of those types of water bodies. Therefore, to recognize the relationship between the aquatic plants and the co-created sediments, we applied in our study the analysis of stable car...

Background This study aims to compare variation in a range of aquatic macrophyte species leaf traits into three carbon acquisition groups: HCO 3 ⁻ , free CO 2 and atmospheric CO 2 . Methods The leaf functional traits were measured for 30 species from 30 softwater lakes. Macrophyte species were classified into (1) free CO 2 , (2) atmospheric CO 2 a...

Jednolite części wód powierzchniowych (JCWP), prowadzące wody przez obszary użytkowane rolniczo, podlegają szczególnej uwadze w związku implementacją Dyrektywy Azotanowej, która obliguje wskazanie obszarów wrażliwych na zanieczyszczenie związkami azotu ze źródeł rolniczych oraz obszarów szczególnie narażonych (OSN). Wyniki uzyskane w obrębie Państw...

Ground- and surface-water-fed peatlands (i.e., fens) of temperate Europe face high anthropogenic nutrient loads from atmospheric deposition, agricultural catchment areas, and from peat decomposition, if drained. As a result, nitrogen loads may exceed a fen's natural nutrient removal capacity, leading to increased eutrophication of adjacent water bo...

The safety of beachgoers and swimmers is determined by the presence or absence of microbial contaminants and cyanobacterial toxins in the water. This study compared the assessment of bathing waters according to the Bathing Water Directive, which is based on the concentration of fecal contaminants, with some modifications, and a new method based on...

The rare aquatic plants Luronium natans (L.) Raf is an endangered species endemic to Europe. Many studies have shown high phenotypic plasticity and occurrence under variable environmental conditions. The heterophyllous plant Luronium natans produces two types of leaves. We aimed at determining functional trait differences in floating and submerged...

The water quality of soft-water lobelia lakes and their characteristic vegetations are sensitive to the pH and nutrients concentration changes. In Poland, due to land use policy and climate change, those ecosystems are at a threat of increased eutrophication and systematically decline. This study focused on 14 lakes, in which 11 are included in Nat...

Transformation of organic matter components as a result of decomposition processes during peat formation can be investigated using Fourier transform infrared (FTIR) spectra analysis. This method enables calculation of so-called 'Humification Index' (HI), i.e. the ratio of spectral peak intensity of lignin and phenolic compounds (wavenumbers 1600-16...

Lake Razim, the largest lake in Romania (415 km 2 area), is located south of the Danube Delta, and is a part of the Danube Delta Biosphere Reserve. It is a lagoon lake with slightly brackish water, moderately affected by eutrophication. The shoreline, especially in the eastern and western part of the lake, is covered by rush vegetation dominated by...

Zakres monitoringu jednolitych części wód powierzchniowych jeziornych przeznaczonych do celów kąpieliskowych w ramach Państwowego Monitoringu Środowiska (PMŚ) oraz monitoring tych zbiorników jako cennych siedlisk w ramach sieci Natura 2000 wydaje się być niedostatecznie spójny. Warto zastanowić się, czy powinno się rozszerzyć badania w ramach PMŚ o...

Stable isotopes probing is among the most used methods applied in the studies of paleoenvironment. Isotope signatures of sediments are influenced by different environmental conditions such as climate, salinity, and plant coverage at the time those sediments were deposited, representing an inestimable value for paleoenvironmental reconstruction and...

Is one shell enough? Isotope study of recent mollusc shells and its application in palaeoenvironmental reconstructions Karina Apolinarska1, Mariusz Pełechaty2, Annette Kossler3, Eugeniusz Pronin2, Daria Noskowiak1 1Institute of Geology, Faculty of Geographical and Geological Studies, Adam Mickiewicz University, Krygowskiego 12, 61-680 Poznań, Polan...

Oxygen (δ¹⁸O) and carbon (δ¹³C) stable isotope analyses are among the standard methods applied in the studies of past environment, including climate. In lacustrine sediments, δ¹⁸O and δ¹³C values can be measured in various carbonates including charophyte encrustations. Application of the stable isotope record of lacustrine carbonates requires knowl...

Species diversity and spatial structure of aquatic and rush vegetation components within different types of water bodies frequently undergo dynamic changes referring to composition and abundance, which can have important consequences for the water body functioning and stability. This particularly applies to small water bodies where the spatial stru...

Carbon (δ13C) and oxygen (δ18O) stable isotope analyses are among the standard methods applied in the studies of past environment, including climate. In lacustrine sediments, δ13C and δ18O values can be measured in fine carbonate fraction (carbonate mud), in charophyte encrustations, ostracod carapaces and mollusc shells. Application of the stable...

Two charophyte species (Chara tomentosa Thulli. 1799 and Chara globularis L. 1753) were studied to assess their biomass and CaCO 3 production in seven hard-water lakes in Western Poland. In each lake, samples of ten individuals from three study sites were collected for dry weight (DW) and calcium carbonate content (% CaCO 3 ) analyses. Additionally...

The stable carbon isotope composition of the carbonate encrustations (δ13CCARB), organic matter (δ13CORG) and the dissolved inorganic carbon (δ13CDIC) in the ambient lake waters were analysed for two common but morphologically different and, thus, representing different growth forms Chara species. We hypothesized that the relationships between δ13C...

The aim of this study was to better understand the relations between carbon and oxygen stable isotope values of ambient water, mollusc shells, macrophytes and their carbonate encrustations, commonly used in palaeolimnological studies. Water, molluscs and macrophytes were sampled from the littoral zone in Lake Lednica, NW Poland. The influence of ca...

Two charophyte species (Chara tomentosa Thulli. 1799 and Chara globularis L. 1753) were studied to assess their biomass and CaCO3 production in seven hard-water lakes in Western Poland. In each lake, samples of ten individuals from three study sites were collected for dry weight (DW) and calcium carbonate content (% CaCO3) analyses. Additionally, p...

Abstrakt: W pracy przedstawiono znaczenie roślinności wodnej i szuwarowej jako wskaźnika stanu ekosystemu jeziornego i jego zmian w czasie. Zwrócono, jednakże, uwagę na wielokierunkowe zależności ekologiczne z udziałem roślinności, mające znaczenie dla funkcjonowania ekosystemu i odzwierciedlające się w przezroczystości wody. Zwarte i rozległe zbio...

Abstract Photosynthetic activity of charophytes (Characeae family) leads to precipitation of autochthonous CaCO3 deposited in lacustrine sediments. These macroalgae can be preserved in lacustrine calcareous sediments as remains of thalli encrustations and gyrogonites serving as a potential archive of palaeonvironmental conditions. The study subject...

Abstract The study aimed at the δ13C analysis of carbonate encrustations (δ13CCARB) and organic matter (δ13CORG) in two charophyte species, Chara tomentosa and Chara globularis. These values are compared with the δ13C values of dissolved inorganic carbon (δ13CDIC) of waters above the charophyte stands. We hypothesized that the contrastive morpholog...

Stable isotope composition of carbonate encrustations (δ 13 C CARB) and of organic matter (δ 13 C ORG) were analyzed in two charophyte species: Chara tomentosa and Chara globularis as well as ambient waters (δ 13 C DIC) DIC (Dissolved Inorganic Carbon). These submerged macroalgae can form dense and extensive charophyte meadows in lakes and may sign...

Stable isotope composition of carbonate encrustations (δ 13 C and δ 18 O) and of organic matter (δ 13 C) was analysed in two charophyte species: Chara tomentosa and Chara globularis and ambient waters. These submerged macroalgae can form dense and extensive charophyte meadows in lakes and may significantly contribute to the calcium carbonate precip...

Photosynthetic activity of charophytes (macroscopic green algae, Characeae family) leads to precipitation of CaCO3 onto the surface of their thalli in amounts exceeding 70% of the dry weight (Pełechaty et al. 2013 and references therein). These autochthonous carbonates may substantially contribute to the deposition of lacustrine sediments, where ch...

The hornwort Ceratophyllum demersum is a loosely attached to the bottom or free-floating vascular macrophyte, which builds dense stands in nutrient-rich waters. The hornwort stands are usually monospecific communities with a negligible contribution of other aquatic plants. However, some published literature data and our own observations evidenced t...

Phytocoenotic diversity and spatial structure of aquatic and rush vegetation components of eutrophic, shallow lakes have frequently undergone dynamic changes in composition and abundance with important consequences for lake functioning and stability. Here we present the results of the short-term changes in the aquatic and rush vegetation of a shall...

STABLE ISOTOPE COMPOSITION (δ 13 C AND δ 18 O) OF CARBONATE INCRUSTATION AND OOSPORES OF CHAROPHYTE (CHARACEAE) AS AN INDICATOR OF ENVIRONMENTAL CONDITIONS. Charophytes (Characeae) are a group of aquatic macroscopic green algae to which significant functions in the lake environment are attributed. Among the most important the CaCO3 precipitation is...

Abstract Charophytes (Characeae) are a group of aquatic macroscopic green algae to which significant functions in the lake environment are attributed. Among the most important the CaCO3 precipitation is listed to be a result of the photosynthetic CO2 assimilation from soluble bicarbonates. Carbonate incrustations deposited on the thalli and oospore...

Our paper presents the study results of the first year of restoration of Lake Goreckie in Wielkopolska National Park. The restoration was carried out on several levels which involved: aeration of the hypolimnion using the pulverizing aerator with wind drive, phosphorus inactivation by iron coagulant, and reduction of plankton-eating fish. The compa...

Celem niniejszej pracy była charakterystyka roślinności wodnej i szuwarowej płytkiego, polimiktycznego, poddanego presji antropogenicznej Jeziora Długiego zlokalizowanego w pobliżu Rzepina (Ziemia Lubuska - środkowo-zachodnia Polska). Zostały omówione możliwe kierunki sukcesji na podstawie analizy różnorodności fitocenotycznej makrofitów w latach 2...