A5028737371- Parasite Biology and Host Interactions
- Genetic diversity and population structure
- Aquaculture Nutrition and Growth
- Aquaculture disease management and microbiota
- Helminth infection and control
- Identification and Quantification in Food
- Reproductive biology and impacts on aquatic species
- Myxozoan Parasites in Aquatic Species
- Physiological and biochemical adaptations
- Plant and animal studies
- Aquatic Invertebrate Ecology and Behavior
- Environmental Toxicology and Ecotoxicology
- Sperm and Testicular Function
- Fish Ecology and Management Studies
- Environmental DNA in Biodiversity Studies
- Marine Biology and Environmental Chemistry
- Parasites and Host Interactions
- Amphibian and Reptile Biology
- Plant and Fungal Species Descriptions
- Mollusks and Parasites Studies
- Plant Parasitism and Resistance
- Ecology and biodiversity studies
- Peroxisome Proliferator-Activated Receptors
- Insect symbiosis and bacterial influences
- Microbial infections and disease research
University of Gdańsk
2011-2024
University of Oulu
2002-2016
KU Leuven
2000-2002
Four hundred Gyrodactylus species have been formally described, but the estimated number of in this fish ectoparasite genus Monogenean Platyhelminthes is more than 20,000. The unusually high richness has lead to hypotheses speciation and adaptive radiation via host switching. These were tested by reconstructing a molecular phylogeny for subgenus G. (Limnonephrotus) which group freshwater parasites, including five infecting wild farmed salmonids. highly variable ITS1 ITS2 segments...
This paper adds new insight to a molecular phylogeny of Gyrodactylus, based on complete sequence the ITS rDNA region 4 subgenera and more detailed analysis. We propose hierarchical approach in elucidating this species-rich genus. A total 37 sequences (915-1239 bp) from 10 representative species out 6 subgenera, as defined by Malmberg (1970), are included Genetic differences observed at 5.8S locus provide objective criteria separate (sub)genera, while deep genetic spacers form sound basis for...
Abstract Three previously undescribed species of wageneri group Gyrodactylus Nordmann, 1832 (subgenus Limnonephrotus, Gyrodactylidae, Monogenoidea) related to G. lavareti Malmberg, 1957 are described here. pomeraniae sp. nov. was found on roach (Rutilus rutilus) in Poland and Belgium, ouluensis Finland salvelini Arctic charr (Salvelinus alpinus) the Lake Inari, Finland. A molecular redescription Coregonus lavaretus is also presented, bliccensis Alburnus alburnus from river Morava, Czech...
The primary structure of the ribosomal DNA internal transcribed spacers (ITS-1 and ITS-2) 5.8S rRNA gene were used to characterize identify 2 monogenean species Gyrodactylus living externally on threespine stickleback (Gasterosteus aculeatus). ITS region was amplified by PCR from freshwater, brackish, marine isolates arcuatus G. branchicus, ends coding regions identified comparative alignment. No intraspecific very low interspecific variation observed in gene; high inter- revealed ITS-1...
Abstract The Gyrodactylus fauna of 274 fish taken from ten salmonid farms in Poland was sampled 2006. Four species were investigated: rainbow trout Oncorhynchus mykiss, brown Salmo trutta (morphs fario, lacustris, and trutta), grayling Thymallus thymallus huchen Hucho hucho. No parasites observed on huchen. indications gyrodactylosis observed, but an unexpected parasite diversity found. A molecular identification by polymerase chain reaction (PCR) restriction fragment length polymorphism...
We investigated the Gyrodactylus ectoparasites on relict fishes in isolated endorheic Central Asian Internal drainage basin Mongolia (The Hollow) and placed them into global phylogenetic framework based internal transcribed spacer regions of nuclear ribosomal DNA (ITS). Much rich Pliocene lacustrine ichthyofauna is extinct. sampled five riverine survivors: Altai osmans Oreoleuciscus humilis O. potanini (Leuciscidae), Mongolian grayling Thymallus brevirostris (Salmonidae), stone loaches...
Host switching explains the high species number of ectoparasitic, viviparous, mainly parthenogenetic but potentially hermaphroditic flatworms genus Gyrodactylus. The starlike mitochondrial phylogeny Gyrodactylus salaris suggested parallel divergence several clades on grayling (also named as thymalli) and an embedded sister clade Baltic salmon. hypothesis that parasite switched from to salmon during glacial diaspora was tested using a 493-bp nuclear DNA marker ADNAM1. parasites in lakes Onega...
We describe an unusually high infection rate of Gyrodactylus salaris Malmberg in juvenile Atlantic salmon Salmo salar L. Baltic Sea origin, which are generally believed to be more resistant G. than East populations. Based on analyses mitochondrial (complete cytochrome oxidase 1 [CO1] gene, 1548 bp) and nuclear (ADNAM1, 435 bp; internal transcribed spacer [ITS] rDNA region, 1232 DNA fragments, the closest relatives characterized Estonian strain were parasites found off Swedish west coast...
Abstract Novel combinations of mitochondrial DNA (CO1) and internal transcribed spacers nuclear ribosomal (ITS) were detected among Gyrodactylus parasites on brown trout (Salmo trutta L.), rainbow (Oncorhynchus mykiss (Walbaum)), Ohrid letnica (Karaman)) from salmonid farms in Poland Macedonia. Some clones differed standard ITS only by ≤ 4 nucleotides, but they belonged to a mtDNA clade that the Northern European lineages G. salaris d MCL = 0.266 ± 0.108 (maximum composite likelihood...
Four hundred Gyrodactylus species have been formally described, but the estimated number of in this fish ectoparasite genus Monogenean Platyhelminthes is more than 20,000. The unusually high richness has lead to hypotheses speciation and adaptive radiation via host switching. These were tested by reconstructing a molecular phylogeny for subgenus G. (Limnonephrotus) which group freshwater parasites, including five infecting wild farmed salmonids. highly variable ITS1 ITS2 segments...
Gyrodactylus chileani n. sp. is the first species reported from Chile. It an ectoparasite living on fins and skin of a small fish, Chilean tidal pond dweller Helcogrammoides chilensis (Cancino) (Perciformes: Tripterygiidae). A phylogenetic analysis based 5.8S+ITS2 rDNA placed new close to marine found in Europe: G. orecchiae Paladini, Cable, Fioravanti, Faria, Cave & Shinn, 2009 gilthead seabream Sparus aurata L. Adriatic Tyrrhenian Sea fish farms Sparidae), undescribed black goby Gobius...
The population structure of the Baltic salmon (Salmo salar) specific clade Gyrodactylus salaris was studied using mitochondrial and nuclear DNA markers across a gradient historical coadaptation. In Onega Ladoga lakes, near to eliminating parasite: just 5 548 inspected juveniles carried small number parasites. northern Tornio River, G. observed as non-pathogenic in 23% 765 fish. naïve anadromous Keret' River (White Sea) had almost perished after parasite imported from Lake 1992. clones...
Two new species of Gyrodactylus Nordmann, 1832 (Gyrodactylidae, Monogenoidea) are described, i.e., coriicepsi n. sp. from gills black rockcod, Notothenia coriiceps Richardson, 1844, and nudifronsi gaudy notothen, Lepidonotothen nudifrons Lönnberg, 1905, collected in waters surrounding the South Shetland Islands, Antarctica. is characterized by a long, narrowing membrane ventral bar marginal hook sickle with beveled heel toe. conspicuous process barely curved Definitive identification...