Keresés
1 találatból megjelenítve: 1-19
Cím: Rapid Expansion of an Aquatic Invasive Species (Ais) in Central-European Surface Waters: A Case Study of Achnanthidium Delmontii
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Dátum: 2022
Feltöltve: 2022-04-13
(Elsevier B.V., 2022)
In this work the rapid expansion of a small-celled (<15 µm) monoraphid aquatic invasive species (AIS) along the Central European lotic systems is reported, using the integrated dataset of two large-scale monitoring programs, ...
Cím: Sorption of selected pharmaceuticals on river benthic biofilms formed on artificial substrata
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Dátum: 2022
Feltöltve: 2023-02-14
(2022)
The dissolved organic and inorganic contaminants in rivers, lakes and seas are distributed among the aquatic phase, biota, sediments and biofilms formed on different artificial and natural substrata. Since the biofilms ...
Cím: Climate and Land-Use as the Main Drivers of Recent Environmental Change in a Mid-Altitude Mountain Lake, Romanian Carpathians
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Dátum: 2020
Feltöltve: 2023-02-15
(2020)
"Recent decades have been marked by unprecendented environmental changes which threaten the integrity of freshwater systems and their ecological value. Although most of these changes can be attributed to human activities, ...
Cím: In situ modelling of biofilm formation in a hydrothermal spring cave
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Dátum: 2020
Feltöltve: 2023-02-15
(2020)
Attachment of microorganisms to natural or artificial surfaces and the development of biofilms are complex processes which can be influenced by several factors. Nevertheless, our knowledge on biofilm formation in karstic ...
Cím: Cultivation and Molecular Studies to Reveal the Microbial Communities of Groundwaters Discharge Located in Hungary
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Dátum: 2021
Feltöltve: 2023-02-15
(2021)
"In the present study 12 water samples of five sampling sites (Tatabánya, Dandár, Szentendre,Szent Flórián and Ciprián groundwaters) known as nutrient-depleted aquatic environments werestudied using amplicon sequencing ...
Cím: Cell Size Decrease and Altered Size Structure of Phytoplankton Constrain Ecosystem Functioning in the Middle Danube River Over Multiple Decades
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Dátum: 2020
Feltöltve: 2023-02-15
(2020)
Reduced body size is among the universal ecological responses to global warming. Our knowledge on how altered body size affects ecosystem functioning in ectothermic aquatic organisms is still limited. We analysed trends ...
Cím: Changes in Algal Plankton Composition and Physico-Chemical Variables in a Shallow Oxbow Lake
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Dátum: 2021
Feltöltve: 2023-02-15
(2021)
In our work, we sought to answer whether we find differences among the various zones of an oxbow lake with different land uses based on physico-chemical variables and dominant algal plankton species. The two ends of the ...
Cím: Metabarcoding as an effective complement of microscopic studies in revealing the composition of the diatom community – a case study of an oxbow lake of Tisza River (Hungary) with the description of a new Mayamaea species
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Dátum: 2022
Feltöltve: 2023-03-24
(Pensoft, 2022)
Diatoms are valuable bioindicators and their traditional classification and identification are mainly based on the morphological characteristics of their frustules. However, in recent years, DNA-based methods have been ...
Cím: Use of Diatoms in Monitoring the Sakarya River Basin, Turkey
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Dátum: 2020
Feltöltve: 2023-02-15
(2020)
The Sakarya River basin is one of the largest basins in Turkey, and encompasses the Kocaeli, Duzce, Sakarya, Bursa, Bilecik, Bolu, Kutahya, Eskisehir, Ankara, Afyon, and Konya provinces. In this study, the water quality ...
Cím: Heterogeneity and Anthropogenic Impacts on a Small Lowland Stream
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Dátum: 2019
Feltöltve: 2023-02-17
(2019)
During our work, we investigated the physical and chemical variables of a small surface watercourse to investigate how different anthropogenic effects affect its water quality. Along this small watercourse, there are ...
Cím: Trait-based community assembly of epiphytic diatoms in saline astatic ponds: a test of the stress-dominance hypothesis
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Dátum: 2019
Feltöltve: 2023-02-17
(2019)
The stress dominance hypothesis (SDH) postulates that strong environmental gradients drive trait convergence in communities over limiting similarity. Previous studies, conducted mostly with terrestrial plant communities, ...
Cím: Quantitative Morphometric Analysis of Morphologically Similar Species of Fragilaria (Fragilariaceae, Bacillariophyta) Allows Detection of Non-Indigenous Taxa: A Case Study from Lake Ladoga (North of European Russia)
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Dátum: 2023
Feltöltve: 2023-12-05
(2023)
In Lake Ladoga (northwestern Russia), we found a diatom, putatively Fragilaria sublanceolata-baikali, an endemic species from Lake Baikal (southeastern Siberia, Russia). To determine whether this population matches a ...
Cím: Halamphora taxa in Hungarian soda pans and shallow soda lakes detected via metabarcoding and microscopic analyses
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Dátum: 2023
Feltöltve: 2024-01-17
(2023)
The research presented investigates whether DNA-based metabarcoding can replace the morphology-based identification of diatom taxa in the ecological status assessments of aquatic habitats. When comparing data obtained with ...
Cím: Rarity of microalgae in macro, meso, and microhabitats
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Dátum: 2023
Feltöltve: 2024-02-12
(2023)
Climate change and human-induced habitat degradations result in loss of species diversity in natural ecosystems. While the extinction of macroscopic organisms has been well documented in both the scientific literature and ...
Cím: Alkalmas-e a kavitációs vízkezelés az algavirágzások csúcsainak letörésére?
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Dátum: 2023
Feltöltve: 2024-01-16
(2023)
Egy kísérleti kavitációs berendezés tervezésével, létrehozásával és kisüzemi alkalmazásával a szennyezett vizek egyik lehetséges tisztítási módját vizsgáltuk. A kísérleti berendezés mobil kivitelű, és alkalmas különböző ...
Cím: Functional properties of planktic microalgae determine their habitat selection
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Dátum: 2024
Feltöltve: 2024-01-25
(2024)
"In this study, we aim to investigate how the functional properties of microalgae help to delineate the major groups of aquatic habitats. Using functional trait-based and Reynolds’ functional group-based approaches ...
Cím: Képes útmutató Magyarország leggyakoribb bevonatlakó kovaalgáihoz (Bacillariophyceae)
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Dátum: 2023
Feltöltve: 2024-03-07
(Ludovika Egyetemi Kiadó, 2023)
A könyv, amelyet az Olvasó a kezében tart, Magyarország leggyakoribb bevonatlakó kovaalgáit bemutató határozási segédlet. Elkészítését az a 2019-ben és 2020-ban zajló országos felmérés tette lehetővé. Ennek során többek ...
Cím: The first sign of Surirella tientsinensis (Surirellaceae, Bacillariophyceae) spreading in the Carpathian region
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Dátum: 2023
Feltöltve: 2024-04-15
(2023)
A characteristic, panduriform, large (ca 80 μm in length) diatom was sporadically detected in the Hungarian rivers in 2021 and 2022. Surirella tientsinensis Skvortzov emend. Liu was regarded as an Asian endemic species ...
Cím: Diatom metacommunity structuring in a large lake: geomorphic, water chemistry and dispersal effects on diatom guilds in Lake Ladoga (north-western Russia)
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Dátum: 2024
Feltöltve: 2024-03-14
(2024)
The relative importance of environmental filtering and dispersal in structuring metacommunities of littoral periphytic diatoms was assessed within a large lake (Lake Ladoga, north-western Russia). We hypothesized that ...