Palíková M., V. Baru‰: Mercury Content in Anguillicola crassus (Nematoda) and its Host Anguilla anguilla. Acta Vet. Brno 2003, 72: 289-294. Mercury content in parasite-host system (Anguillicola crassus and Anguilla anguilla) was studied in the Koryãany Reservoir (Czech Republic). The swimbladder nematode contained the lowest mercury levels (0.050 0.183mg kg-1 wet weight), (p<0.05), compared to ...

Proliferative kidney disease (PKD) caused by the myxozoan parasite Tetracapsuloides bryosalmonae is a severe parasitic disease of salmonid fish. Estimates of genetic variation in parasite populations across Europe are currently lacking. We developed the first polymorphic microsatellite markers for T. bryosalmonae using Illumina MiSeq sequence data derived from genomic DNA. Twelve polymorphic lo...

Ectoparasites can reduce individual fitness by negatively affecting behavioural, morphological and physiological traits. In fishes, there are potential costs if ectoparasites decrease streamlining, thereby directly compromising swimming performance. Few studies have examined the effects of ectoparasites on fish swimming performance and none distinguish between energetic costs imposed by changes...

Parasite-driven population divergence in hosts can be exacerbated by environmental factors affecting host parasitism, as well increasing sexual selection against parasitized hosts. Environmental influence parasitism directly parasite survival, and indirectly condition, which turn shape selection. To disentangle these potential alternative paths, we used a damselfly (host) - water mite (parasite...

Marine fish species such as grey wrasse Symphodus cinereus, common sole Solea solea, knout goby Mesogobius batrachocephalus and rusty blenny Parablennius sanguinolentus were studied for their parasitic isopods on the Sinop coast of Black Sea. Two cymothoid (Nerocila bivittata Nerocila orbignyi) identified. was found body surface fins wrasse, sole, goby, N. orbignyi dorsal fin blenny. The preval...

To examine the behavior of the estrogenic biomarker vitellogenin (VTG) under the combined impact of estrogens and pathogens, parasite-infected or noninfected rainbow trout were exposed to two doses of 17β-estradiol (E2). Infected and E2-exposed fish showed significantly lower hepatic VTG mRNA levels than healthy fish. Transcriptome data suggest that this was due to energetic constraints. Reduce...

Proliferative kidney disease (PKD), caused by the myxozoan parasite Tetracapsuloides bryosalmonae, is well documented as a seasonal disease of rainbow trout Oncorhynchus mykiss. Water temperatures influence the course of the infection both within the fish and the invertebrate host, the recovery of fish from the disease being accelerated with decreasing water temperatures. During this study, gro...

One hundred and thirteen specimens of Franciscodoras marmoratus (Reinhardt, 1874) were collected in the upper São Francisco River (18 degrees 12' 32" S, 45 degrees 15' 41" W, state of Minas Gerais) between September, 1999 and January, 2004 to investigate their parasite fauna. From this total, 45 (39.8%) were afflicted by at least one parasite species. The parasitic richness consisted of six spe...

The aim of this work is to draw attention to the diversity and change of parasite number reported from marine and freshwater fish in Turkey. Comparisons were done among phlums Plathyhelminthes (Monogenea, Digenea, Cestoda), Nemathelminthes, Acanthocephala, Annelida (Hirudinea) according to years. Especially, platyhelminth species number from marine and freshwater fish of Turkey increased seriou...

The rearing of fish fry in illuminated cages is one of the methods used before fish release into water bodies. The aim of the study was to investigate the peculiarities of infestation with Argulus foliaceus L. of the fry of pike Esox lucius (L.), pike-perch Sander lucioperca (L.), bream Abramis brama (L.), vimba Vimba vimba (L.) and peled Coregonus peled (Gmel.) reared in illuminated cages. The...