TY - CONF AU - Takács, Péter AU - Zrínyi, Zita AU - Bánó, Bálint AU - Szivák, Ildikó AU - Melegh, Szilvia AU - Maász, Gábor ED - Pap, Péter László ED - László, Zoltán TI - Mennyire tükrözi a tokfélék (Acipenseridae) kültakarójának nyálkaösszetétele a faji, nemi és fiziológiai különbségeket? T2 - 24. Kolozsvári Biológus Napok PY - 2024 SP - 62 UR - https://m2.mtmt.hu/api/publication/34814127 ID - 34814127 LA - English DB - MTMT ER - TY - CONF AU - Bánó, Bálint AU - Bolotovskiy, Aleksey AU - Levin, Boris AU - Mattox, George M.T. AU - Cetra, Mauricio AU - Czeglédi, István AU - Takács, Péter ED - Pap, Péter László ED - László, Zoltán TI - Mit tudhatunk meg az édesvízi halak pikkely alakjából és relatív méretéből? T2 - 24. Kolozsvári Biológus Napok PY - 2024 SP - 17 UR - https://m2.mtmt.hu/api/publication/34814111 ID - 34814111 LA - English DB - MTMT ER - TY - JOUR AU - Hoitsy, Márton György AU - Hoitsy, György AU - Gál, János AU - Ziszisz, Árisz AU - Tóth, Tamás AU - Sós, Endre AU - Sós‐Koroknai, Viktória AU - Jakab, Csaba AU - Petneházy, Örs AU - Donkó, Tamás AU - Molnár, Tamás Gergely AU - Marosán, Miklós TI - Rainbow trout ( Oncorhynchus mykiss , Walbaum 1792) adenocarcinoma investigation with various diagnostic imaging techniques JF - JOURNAL OF FISH DISEASES J2 - J FISH DIS PY - 2024 PG - 8 SN - 0140-7775 DO - 10.1111/jfd.13951 UR - https://m2.mtmt.hu/api/publication/34777486 ID - 34777486 AB - Diagnostic imaging techniques provide a new aspect of the ante‐mortem and post‐mortem diagnostics in fish medicine. Ultrasonography, computed tomography (CT) and magnetic resonance imaging (MRI) can provide more information about the internal organs and pathognomic lesions. The authors used diagnostic imaging techniques to evaluate and describe the neoplastic malformation in a 3‐year‐old female rainbow trout ( Oncorhynchus mykiss ). The fish was examined with Siemens Somatom Definition AS + CT scanner and Siemens Biograph mMR scanner. The animal was lethargic and showed anorectic signs and muscular dystrophy. During the post‐mortem investigation, histopathology and immunohistochemistry were also performed allowing us to identify the neoplasms. The results showed a large soft tissue mass in the first mid‐intestine segment, which proved to be an adenocarcinoma. This subsequently led to digestion problems and absorption disorders. Immunohistochemically, neoplastic cells of carcinoma revealed E‐cadherin and pancytokeratin positivity. This is the first study to report the use of MRI and CT for studying gastrointestinal adenocarcinoma in rainbow trout. LA - English DB - MTMT ER - TY - JOUR AU - Kucska, Balázs AU - Quyen, Nguyen Ngoc AU - Ivánovics , Bence AU - Staszny, Ádám AU - Havasi, Máté AU - Vranovics, Károly AU - Griffitts, Jeffrey AU - Varga, Ádám AU - Urbányi, Béla AU - Müller, Tamás TI - Removal of dead fish eggs by Asellus aquaticus as a potential biological control in aquaculture JF - SCIENTIFIC REPORTS J2 - SCI REP VL - 14 PY - 2024 IS - 1 SN - 2045-2322 DO - 10.1038/s41598-024-57903-4 UR - https://m2.mtmt.hu/api/publication/34762533 ID - 34762533 AB - The objective of the present experimental study was to gain a better understanding of the foraging activity of Asellus aquaticus during fish egg incubation. A. aquaticus were introduced into experimental setups of dead eggs, viable eggs and hatched larvae of zebrafish ( Danio rerio ), a commonly used model organism. The amount of A. aquaticus and the duration of their exposure to the eggs significantly affected the proportion of consumed dead eggs in each experimental cycle. A. aquaticus belongs to the group of aquatic detritivores, and no predatory behavior was observed during the experiments. These crustaceans could distinguish between the dead eggs and those containing living embryos. Furthermore, zebrafish larvae remained unharmed by A. aquaticus , even in the absence of alternative food source. These findings underscore the potential sanitary role of these crustaceans in natural waters and offer new perspectives on their possible use as biological control organisms in aquaculture hatcheries. Additionally, our results suggest a potential application of A. aquaticus in combating pathogens by reducing the growth substrates for bacteria and fungi. LA - English DB - MTMT ER - TY - JOUR AU - Bánó, Bálint AU - Bolotovskiy, Aleksey AU - Levin, Boris AU - Mattox, George M. T. AU - Cetra, Mauricio AU - Czeglédi, István AU - Takács, Péter TI - Scale morphology is a promising, additional tool for exploring the taxonomy and ecology of freshwater fishes JF - FISH AND FISHERIES J2 - FISH FISH VL - 00 PY - 2024 SP - 1 EP - 20 PG - 20 SN - 1467-2960 DO - 10.1111/faf.12826 UR - https://m2.mtmt.hu/api/publication/34760913 ID - 34760913 AB - It has long been recognized that presence–absence, localisation, size, number and shape of fish scales can be important taxonomic features. Although there are some notes on the relationship between scale morphology and ecological needs, in the absence of a sufficiently large and detailed database, the morphological variability of fish scales and the factors responsible for this variability have not yet been explored in detail. For this reason, a database—which contains the shape and relative size data of 193 freshwater fish taxa of 14 orders, originated from five biogeographic realms—has been built. Database analyses showed that both the scale shape and relative size are proper taxonomic indicators. They can be used to separate higher taxonomic categories (e.g., orders), and by the simultaneous analysis of shape and size scale morphology, we showed increased sensitivity for species‐level detachments. Our results suggest that while both the shape and the size of the fish scales are genetically determined, they are also useful descriptors of the niche segregation (habitat use, flow preference) of close relative species. Scale morphology is a promising additional tool to specify the environmental preferences of lesser known or close relative recent and extinct fish species. And also can be of great help in such cases when only the scales are available for taxonomic identification, for example, in the research field of archaeology and palaeontology. LA - English DB - MTMT ER - TY - JOUR AU - Soh, Melissa AU - Tay, Ywee Chieh AU - Lee, Co Sin AU - Low, Adrian AU - Orbán, László AU - Jaafar, Zeehan AU - Seedorf, Henning TI - The intestinal digesta microbiota of tropical marine fish is largely uncultured and distinct from surrounding water microbiota JF - NPJ BIOFILMS AND MICROBIOMES J2 - NPJ BIOFILMS MICROBI VL - 10 PY - 2024 IS - 1 SN - 2055-5008 DO - 10.1038/s41522-024-00484-x UR - https://m2.mtmt.hu/api/publication/34668780 ID - 34668780 AB - Studying the gut microbes of marine fishes is an important part of conservation as many fish species are increasingly threatened by extinction. The gut microbiota of only a small fraction of the more than 32,000 known fish species has been investigated. In this study we analysed the intestinal digesta microbiota composition of more than 50 different wild fish species from tropical waters. Our results show that the fish harbour intestinal digesta microbiota that are distinct from that of the surrounding water and that location, domestication status, and host intrinsic factors are strongly associated with the microbiota composition. Furthermore, we show that the vast majority (~97%) of the fish-associated microorganisms do not have any cultured representative. Considering the impact of the microbiota on host health and physiology, these findings underpin the call to also preserve the microbiota of host species, especially those that may be exposed to habitat destruction. LA - English DB - MTMT ER - TY - CHAP AU - Hirth, Mirella AU - Pethő, Cintia AU - Szabó, Olivér Máté AU - Orbán, László AU - Szeverényi, Ildikó ED - Hajdú, Péter TI - A hőmérséklet zebradánió (Danio rerio) ivarának kialakulására gyakorolt hatása T2 - II. Magyar Agrártudományi Doktoranduszok Szimpóziuma 2024 PB - Doktoranduszok Országos Szövetsége (DOSZ) CY - Budapest SN - 9786156457431 PY - 2024 SP - 48 PG - 1 UR - https://m2.mtmt.hu/api/publication/34641103 ID - 34641103 LA - Hungarian DB - MTMT ER - TY - JOUR AU - Bánó, Bálint AU - Benedek, Ildikó AU - Zsolnai, Attila AU - Specziár, András AU - Takács, Péter AU - Molnár, Tamás Gergely TI - Population genetic structure of intensively exploited pikeperch (Sander lucioperca) in Lake Balaton (Hungary) JF - HYDROBIOLOGIA J2 - HYDROBIOLOGIA VL - 851 PY - 2024 SP - 559 EP - 571 PG - 13 SN - 0018-8158 DO - 10.1007/s10750-023-05347-8 UR - https://m2.mtmt.hu/api/publication/34119013 ID - 34119013 AB - Pikeperch ( Sander lucioperca Linnaeus, 1758) is a wide-ranged percid predator fish characterised by a great ecological value in the Eurasian freshwater and brackish ecosystems. It is also one of the most famous fish species of Lake Balaton (Hungary), where a unique (genetically separated) pikeperch stock lives. However, until now, no detailed information was available about the pikeperch population genetic structure in Lake Balaton. In the present study, the population genetic structure of the pikeperch assemblages in the lake was revealed by using microsatellite markers. Commercial fishery and angler catch data going back more than 100 years verified that the pikeperch has always been a key element of Lake Balaton’s fish stock utilization. Results of genetic data analyses showed that the pikeperch in the Lake Balaton forms a metapopulation system, in which only the westward stocks show certain separation. Moreover, it seems that the exploitation and mass fish kills that happened in the 1960s and 1970s may have had only a slight impact on the population genetic structure of Balaton pikeperch stocks. The information about genetic features and utilization changes of pikeperch stocks can help to develop area-specific management plans and ensure the long-term survival of this carnivore fish species characteristic of Lake Balaton. LA - English DB - MTMT ER - TY - GEN AU - Erika, Fodor AU - Javan, Okendo AU - Nóra, Szabó AU - Kata, Szabó AU - Dávid, Czimer AU - Anita, Tarján-Rácz AU - Ildikó, Szeverényi AU - Bi, Wei Low AU - Jia, Huan Liew AU - Sergey, Koren AU - Arang, Rhie AU - Orbán, László AU - Ádám, Miklósi AU - Máté, Varga AU - Shawn, M. Burgess TI - The reference genome of paradise fish (Macropodus opercularis) PY - 2023 UR - https://m2.mtmt.hu/api/publication/34668819 ID - 34668819 LA - English DB - MTMT ER - TY - GEN AU - Máté, Olivér Szabó AU - Hirth, Mirella AU - Szabó, Gyula AU - Orbán, László AU - Szeverényi, Ildikó TI - Early selection allows for efficient and rapid introgression of a reporter construct into a partially transparent zebrafish line CY - Budapest, 2023. október 27. PY - 2023 UR - https://m2.mtmt.hu/api/publication/34377482 ID - 34377482 LA - English DB - MTMT ER -