A5075291708- Diatoms and Algae Research
- Aquatic Ecosystems and Phytoplankton Dynamics
- Aquatic Invertebrate Ecology and Behavior
- Marine and environmental studies
- Microbial Community Ecology and Physiology
- Freshwater macroinvertebrate diversity and ecology
- Marine and coastal ecosystems
- Environmental Science and Water Management
- Geology and Paleoclimatology Research
- Protist diversity and phylogeny
- Environmental DNA in Biodiversity Studies
- Botany and Plant Ecology Studies
- Peatlands and Wetlands Ecology
- Ecology and biodiversity studies
- Fish Ecology and Management Studies
- Genomics and Phylogenetic Studies
- Morphological variations and asymmetry
- Analytical chemistry methods development
- Environmental Toxicology and Ecotoxicology
- Wastewater Treatment and Nitrogen Removal
- Integrated Water Resources Management
- Geochemistry and Elemental Analysis
- Geological Formations and Processes Exploration
- Pharmaceutical and Antibiotic Environmental Impacts
- Marine and Coastal Research
Ludovika University of Public Service
2019-2025
Centre for Ecological Research
2017-2022
Hungarian Academy of Sciences
2010-2021
Danube Research Institute
2012-2021
Agricultural Biotechnology Institute
2021
Institute of Ecology and Botany
2007-2012
Observatoire Océanologique de Banyuls-sur-Mer
2010
Eötvös Loránd University
2002-2004
Hungarian Natural History Museum
1993-1994
DNA metabarcoding of benthic diatoms has been successfully applied for biomonitoring at the national scale and can now be considered technically ready routine application. However, protocols methods still vary between within countries, limiting their transferability comparability results. In order to overcome this, use diatom requires knowledge sources variability introduced by different steps procedure. Here, we examine how elements procedures contribute European laboratories. A set four...
Abstract Centric diatoms of 107 different Hungarian running waters were investigated. Among them the largest was River Danube, from which more than one hundred plankton samples analysed by scanning electron microscopy (SEM). Only sample creeks, smallest in this study. There also channels with slow currents flowing out rivers or connecting rivers. In total, 41 centric taxa belonging to 11 genera found during The average number a single watercourse 7, maximum 40 and minimum 1. Cyclotella...
Abstract Long‐term dynamics of phytoplankton have been addressed in marine and lake systems, but rarely rivers. Large rivers, however, are highly human‐impacted, whereas global warming may further affect the functioning at long‐term scale. In middle section large European Danube River, decrease biomass (Chl‐ a ) increase species diversity formerly revealed. The functional community composition that relates to ecosystem directly has not previously. We analyse 34‐year‐long data set from river...
Previous morphological studies showed that the description of Cyclotella genus was too general and according to new criteria genera were established based on both recent fossil taxa ( e.g.Discostella, Handmannia, Puncticulata, Tertiarius).Furthermore, previous molecular biological investigations proved not monophyletic.Integrating above mentioned knowledge former has been split into 4 (Cyclotella s.s., Discostella, Tertiarius Lindavia).Based position rimoportula Lindavia formed for involving...
The Sakarya River basin is one of the largest basins in Turkey, and encompasses Kocaeli, Düzce, Sakarya, Bursa, Bilecik, Bolu, Kütahya, Eskişehir, Ankara, Afyon, Konya provinces. In this study, water quality status was investigated using 18 diatom indices, calculated Omnidia software. For purpose, a total 46 stations were surveyed rivers streams May 2018. As result, 41 195 taxa found to be most frequent (>10% share assemblage). According Detrented Correspondence Analysis (DCA), three...
Diatoms are an important group of aquatic ecosystems. To date, there have been many algological studies in different river basins Turkey. However, the use diatoms biomonitoring (according to diatom indices, Watanabe's or Van Dam's systems) is relatively new In present study, 41 samples epilithic were collected from 5 stations along Felent creek between June 2006 and February 2007 a total 117 taxa identified. The bio-indication (autoecology abundance scores communities) was investigated and,...
Benthic diatom investigations of some Hungarian streams have been carried out in order to find reference sites assistance the ecological quality analysis different river types according typology. On basis coevaluation biological and chemical parameters, among investigated streams, part Kemence stream seems be appropriate site for classification highland, siliceous rivers Hungary. However, further invastigations are needed selection other This is most difficult case lowland rivers, which...
Conventional and landmark-based geometric morphometric approaches were used to clarify the taxonomic identity of a centric diatom morph. This morph, found in cultures isolated from Geeste estuary (northern Germany), showed an intermediate valve morphology between that typical specimens Cyclotella meneghiniana Kützing scaldensis Muylaert & Sabbe. Its internal ultrastructure was compared cells (1) C. same field samples grown conditions, (2) material which isolated, (3) sample type locality...
Reduced body size is among the universal ecological responses to global warming. Our knowledge on how altered affects ecosystem functioning in ectothermic aquatic organisms still limited. We analysed trends cell structure of phytoplankton middle Danube River over a 34-year period at multiple levels: (1) average assemblages (ACS), (2) within centric diatom community and (3) dominant taxon: Stephanodiscus. asked whether warming human impacts affected phytoplankton. Also, chlorophyll-a, as an...
Dissipation of the herbicide active ingredient glyphosate was investigated in natural waters. To assess combined effects, applied its pure form (glyphosate isopropylammonium salt) and preparation Roundup Classic® formulated with polyethoxylated tallowamines (POEA). Standing running surface water samples originated from Lake Balaton River Danube between early May mid-June 2015. The kinetics dissipation glyphosate, measured by high-performance liquid chromatography UV-VIS absorbance detection...
In our former study, we proved that sperm injected into the ovary by catheter through oviduct 10-12 h before hormonally induced ovulation, retains its fertilizing capacity for several hours. Using this method, produced viable larvae via in vitro fertilisation. The aim of study was to investigate time-dependent which were introduced ovary. Sperm samples (2 mL / bodyweight kg) incubated gonad lobes 5, 10, 15, 20, 25, 36 and 48 gamete stripping. Ovulation extracted carp pituitary (CPE) hormonal...