László Antal

László Antal
University of Debrecen · Department of Hydrobiology

Biologist, PhD

About

51
Publications
9,154
Reads
How we measure 'reads'
A 'read' is counted each time someone views a publication summary (such as the title, abstract, and list of authors), clicks on a figure, or views or downloads the full-text. Learn more
334
Citations
Citations since 2016
26 Research Items
307 Citations
2016201720182019202020212022020406080
2016201720182019202020212022020406080
2016201720182019202020212022020406080
2016201720182019202020212022020406080
Additional affiliations
June 2010 - present
University of Debrecen
Position
  • Professor (Assistant)

Publications

Publications (51)
Article
Three species of small-sized rheophilic Barbus fishes are endemic to and widely distributed throughout the mountain regions in the Danube River basin. In Hungary, barbels referred to as B. petenyi occur in streams in the foothills of the Carpathians near the borders with Slovakia, Ukraine and Romania. However, up to now, no genetic investigations w...
Article
Full-text available
In recent years and decades, two new fish species, the Caucasian dwarf goby (Knipowitschia caucasica) and the Amur sleeper (Perccottus glenii) have become members of the Hungarian fish fauna. In a 14-month study on the parasite fauna of these species, the authors detected 11 parasite species in the Caucasian dwarf goby and 17 species in the Amur sl...
Article
In the last two decades, the invasion of the Amur sleeper (Perccottus glenii Dybowski, 1877) originating from the Far East can be observed in Eastern and Central Europe. Since the Amur sleeper is a non-game fish species, few detailed studies exist on its feeding ecology both in its native and invaded habitats. We examined the seasonal feeding ecolo...
Article
Morphometric-based condition indices are widely used to assess proximate body composition and, collaterally, feeding and living conditions of fish. However, the exact relationship between condition indices and proximate body composition of fish and its relatedness to life history traits and seasonality has yet to be fully explored. Therefore, the a...
Article
Full-text available
The main objective of this study was to investigate the regeneration potential of the fish fauna of River Szamos/Somes after a massive cyanide and heavy metal pollution in 2000. The investigation of the fish fauna was started in 2004 in the Hungarian part of the river. Fish samples were taken with electrofishing equipment three times a year, from r...
Article
Full-text available
Throughout their history humans “tamed” not only the Danube River basin land, but also the river and its associated wetlands, drastically influencing their characteristic habitats, associations, communities, and species. One of these flagship endemic fish species in this respect is the European mudminnow (Umbra krameri Walbaum, 1792), influenced by...
Article
Full-text available
Chlorpyrifos (CPF) and cypermethrin (CYP) are two insecticides that have a proven negative effect on non-target aquatic organisms when they enter the surface waters. However, literature on the comparative effects of these pesticides on important aquaculture fish species, such as common carp (Cyprinus carpio Linnaeus, 1758) is not yet scientifically...
Article
Full-text available
The mussel-watch concept was firstly proposed in 1975, which was later adopted by several international monitoring programs worldwide. However, for the very first time, a field experiment with caged mussels was performed in three reservoirs in Bulgaria to follow the harmful effects of sub-chronic pollution (30 days) of metals, trace, and macro-elem...
Article
Chlorpyrifos (CPF) and cypermethrin (CYP) are two insecticides that have a proven negative effect on non-target aquatic organisms when they enter the surface waters. However, literature on the comparative and long-term effects of these pesticides on important aquaculture fish species, such as common carp (Cyprinus carpio Linnaeus, 1758) is relative...
Article
Full-text available
Background miRNAs and lncRNAs can regulate cellular biological processes both under physiological and pathological conditions including tumour initiation and progression. Interactions between differentially expressed diverse RNA species, as a part of a complex intracellular regulatory network (ceRNA network), may contribute also to the pathogenesis...
Article
Full-text available
The general aim of this study was to investigate the negative short-term effects of different concentrations of chlorpyrifos (CPF) and cypermethrin (CYP), based on the EU legislation (MACEQS) in common carp (Cyprinus carpio Linnaeus, 1758) under laboratory conditions and to compare their toxicity. The fish were exposed to the pesticides for 96 h an...
Article
Full-text available
Semi-intensive common carp (Cyprinus carpio) farm technology uses several feed types affecting the growth performance; however, we know less about their long-term effects on water quality. Herein, we evaluated the effects of three commonly used feeds—moderate levels of fish meal and fish oil feed (FF), plant meal and plant oil feed (PF), and cereal...
Article
The reproductive success of uniparental males depends much on their nutritional stage (i.e. body condition). Therefore, secondary sexual traits should convey information not only on fecundity but also on nutritional stage. To test this hypothesis, we evaluate relationships between head crest height (HCH), as a secondary sexual trait, relative teste...
Article
Full-text available
The Carpathian brook lamprey (Eudontomyzon danfordi Regan, 1911) is an endemic protected species of Cephalaspidomorphi in the Carpathian Basin. No parasites have become known from these jawless vertebrates to date. Here, the authors describe an infection from a single specimen manifesting in protuberant skin cysts 7-10 mm in diameter, scattered on...
Article
Full-text available
Due to various anthropological activities e.g. cut off of the migration routes, overfishing, habitat loss the populations of sturgeons (Acipenseridae) decreased significantly during the last centuries. In this paper we collected and analyzed the recent occurrence data and the tendencies of population structures of sturgeons in the Carpathian Basin...
Article
Full-text available
There is not any proper method to examine and evaluate the ecological status of Hungarian standing waters with using fish data. For theoretically purpose we decided to use two methods of sampling and we investigated the fish fauna of Rakamaz oxbow lake in 2019. The first selected method was based on the National Biodiversity-monitoring System. We s...
Article
Full-text available
The excessive use of pesticides at different stages of crop production can pose a great danger to the aquatic environment, and particularly to fish. The purpose of the present work was to assess the negative effects of chlorpyrifos (CPF) on the liver histological architecture and the activities of marker enzymes in common carp (Cyprinus carpio Linn...
Article
Full-text available
The aim of our study was to provide a first overview of the population genetic structure of the invasive Chinese sleeper, Perccottus glenii, (Actinopterygii: Odontobutidae) in European water bodies. This species originates from inland waters of north-eastern China, northern North Korea and the Russian Far East. The 1172 bp long portion of the cytoc...
Article
The European mudminnow (Umbra krameri) is a strictly protected, threatened fish species, endemic to the River Danube and Dniester basins. Population decreases have been observed for several decades, primarily due to habitat loss, but, recently, the adverse impact of invasive species, including the Amur sleeper (Perccottus glenii), has also been imp...
Article
Full-text available
In this study we examined the population dynamics of fish in the thermal water provided boating lake of Hajdúszoboszló. Our investigation was made four times in the spring and autumn in 2017 and 2018. Our study sample consisted of 314 carp (Cyprinus carpio) and 402 Prussian carp (Carassius gibelio) individuals collected by electrofishing. We mea...
Article
Full-text available
Up to now there was no published data about the fish fauna of the Nagykunság Main Channel. Therefore in April 2018 the composition of the fish assemblage of Nagykunság Main Channel at 8 sampling sites was investigated. 3171 specimens representing 22 fish species were identified. Diversity indices and ecological assessment were also calculated based...
Article
Full-text available
The present study aimed to investigate for the first time the health status of the Caucasian dwarf goby Knipowitschia caucasica Berg, 1916 (Teleostei: Gobiidae) from an anthropogenically loaded site in Hungary using histopathological analyses on multiple tissues. For that purpose, fish were collected from the public beach at Tiszafüred near the Riv...
Article
Chub (Squalius cephalus L. 1758) specimens of three age groups with different types of diet were collected in November 2013 in the River Szamos/Someş, Hungary. The Ca, K, Mg, Na, Cd, Cr, Cu, Fe, Mn, Pb, Sr and Zn concentrations were analyzed in the muscle, gills and liver samples of chub by microwave assisted plasma-atomic emission spectrometry (MP...
Article
1. Changes in organismal stoichiometry (OS) may be driven by seasonal changes in lipid reserves (i.e., energy) and gonadal development in fish. Yet, these relationships are understudied. Hence, we investigated how seasonal changes in body lipid content (%L), gonadal development (GSI) can drive the seasonal variability of OS traits at the example of...
Article
Full-text available
First occurrence data of round goby, Neogobius melanostomus (Pallas, 1814) in the water system of Tisza River was described in the Nagykunság Main Channel from the Middle Tisza Region, in the summer of 2017. Our ichthyological survey of Nagykunság Main Channel and the analysis of catch data of anglers revealed that round goby is probably widespread...
Article
Full-text available
Although the Amur sleeper (Perccottus glenii Dybowski, 1877) is one of the most invasive alien freshwater fish species in Eurasia, the ecology of the species is under-represented in the literature. In this study we investigated the growth features of population of Amur sleeper in Rakamazi-Nagy-morotva. Our study sample consisted of 1239 individuals...
Article
Full-text available
Background. The Amur sleeper, Perccottus glenii Dybowski, 1877, is the most invasive alien fish species in the native aquatic communities in central Europe. Although the accelerated invasion of P. glenii has been well documented, there is little information on the ecological and growth parameters of non-native populations in this region. The aim of...
Article
Full-text available
In the last decades numerous riverbed settlement and regulation activities were implemented on the River Öreg‐Túr to improve the riverine conditions and water retention features of the river. As a result, the flow conditions of the river have changed significantly influencing the composition of organism community of the water including the fish fau...
Article
Full-text available
In the second half of the 20th century the River Sajó was one of the most polluted Hungarian rivers because of industrial activity. As a result of the improvement of water quality since 1990, the fish fauna of the river has changed for the better. In our survey we studied the fish fauna of tributaries of the River Sajó. Altogether 2120 individuals...
Article
Full-text available
During our study, the growth features of European perch (Perca fluviatilis) from two habitats were compared in the area of Middle‐Tisza. 226 perches were collected from Tiszavalki‐medence of Lake Tisza (111 pcs) in 27 October 2014 and Rakamazi‐Nagy‐morotva (115 pcs) in 3 November 2014. The relationship between standard length (SL) and total length...
Article
Full-text available
The dual index of the absolute (TA) and relative (TR) conservation values are frequently used for numeric expression of qualification of Hungarian fish fauna. The user‐friendly TAR software was developed to simplify usability of the numerical indexes. The software is free to download from the website of the Hungarian Ichthyological Society and the...
Article
Full-text available
West Nile virus (WNV) is a widely distributed mosquito-borne flavivirus. WNV strains are classified into several genetic lineages on the basis of phylogenetic differences. Whereas lineage 1 viruses are distributed worldwide, lineage 2 WNV was first detected outside of Africa in Hungary in 2004. Since then, WNV associated disease and mortality in an...
Article
Full-text available
The aim of this study was to investigate the growth of the Amur sleeper (Perccottus glenii, Dybowski 1877) in the Rakamaz–Tiszanagyfalui‐Nagy‐morotva. Our study sample consisted of 669 individuals collected three times from the Rakamaz–Tiszanagyfalui‐Nagy‐morotva from 2011 to 2013. The relationship between standard (SL) and total length (TL) was de...
Article
Full-text available
In the 21th century the more and more intense industrial activity of human civilization is based on the utilization of chemicals. A significant part of these chemicals gets into the environment and pollute it. Toxic elements – like heavy metals – from anthropogenic sources take part in biochemical cycles and can accumulate in plants and animals. Th...
Conference Paper
Full-text available
West Nile virus (WNV) is one of the most widely distributed mosquito-borne flaviviruses classified into a number of distinct lineages. Out of the two main lineages, lineage 1 is present in Africa, Australia, India, Eurasia and also in the Americas since 1999, while lineage 2 strains have been known to exist only in sub-Saharan Africa until their fi...
Article
Full-text available
The toxicity of three highly volatile organic solvents – tetrachloroethane (Cl2HC–CHCl2), tetrachloroethylene (Cl2C=CCl2), trichloroethylene (ClHC=CCl2) – was studied on Unio crassus specimens. The tested chlorinated hydrocarbons sink to the bottom of standing water bodies due to their high density; therefore they represent an increased risk for be...
Article
Full-text available
The introduced Amur sleeper (Perccottus glenii Dybowski, 1877) has been widely established along the Tisza River and its tributaries since its first appearance in the Carpathian Basin in 1997. Our study sample consisted of 366 individuals collected from five sampling sites of the Middle Tisza Region from 25 October to 8 November 2011. The relations...
Article
Full-text available
Premier signalement de l'espèce ponto-caspienne Knipowitschia (gobiidae) dans le bassin des carpates, Hongrie. Un spécimen du gobie du caucase Knipowitschia caucasica (Berg, 1916) a été capturé dans la région nord-est de la Hongrie, dans la section épipotamique de la rivière szamos, en 2009. il s'agit du premier signalement du genre Knipowitschia d...
Article
Full-text available
2008. június 23. és augusztus 27. között a Kis-Balaton Vízvédelmi Rendszer továbbfejlesztéséhez kapcsolódó munkálatok részeként a Kis-Balaton térségében összesen 17 helyszínen végeztünk halfaunisztikai felmérést. A nappali mintavételekhez kis teljesítményű akkumulátoros és nagy teljesítményű aggregátoros halászgépeket használtunk. A mintavételek so...

Network

Cited By