| [the morphological variability of a population of proteocephalus percae (cestoda: proteocephalidea) in lake rindozero]. | the morphology of the cestode proteocephalus percae, a typical parasite of perca fluviatilis, from lake rindozero has been studied. the variability of 8 age groupings has been revealed and the connection of their morphological parameters with the specificity of host-parasite relationships at different developmental stages of the population has been shown. | 1992 | 1297967 |
| on some cestodes parasitizing freshwater fish in italy. | the paper presents a systematic survey of some cestodes parasitizing freshwater fish in italy. the following eight species were recorded: monobothrium wageneri, cyathocephalus truncatus, triaenophorus nodulosus (plerocercoids and adults), bothriocephalus acheilognathi, b. claviceps, ligula intestinalis (plerocercoids), schistocephalus sp. (plerocercoids) and proteocephalus percae from perca fluviatilis which is reported from freshwater fish in italy for the first time. all the tapeworms recovere ... | 1992 | 1339972 |
| occurrence of proteocephalus percae and p. cernuae in the perch and ruff in northern finland. | the occurrence of two palearctic proteocephalus species, p. percae and p. cernuae, in the perch and ruff, respectively, was studied in two areas of northern finland in 1977-1983. in the bothnian bay, 243 perch (perca fluviatilis) and 406 ruff (gymnocephalus cernuus) were studied, of which 60% and 40%, respectively, were infected, while in lake yli-kitka the prevalences were 10% in 213 perch and 24% in 307 ruff. higher mean intensities of infection were found in the bothnian bay fish than in thos ... | 1989 | 2767548 |
| studies on the life history and development of proteocephalus percae (müller) (cestoda: proteocephalidea). | | 1974 | 4448890 |
| the helminths in the gut of perch (perca fluviatilis l.) in a small oligotrophic lake in southern norway. | a total of 311 perch were examined for gut parasites during the period from april 1972 to december 1973. four different metazoan parasites were found; proteocephalus percae (müller, 1780), bunodera luciopercae (müller, 1776), acanthocephalus lucii müller, 1776 and camallanus lacustris zoega, 1776. b. luciopercae and p. percae exhibited similar seasonal cycles in appearance and abundance. they were both absent from the fish population during june/july. a. lucii and c. lacustris on the other hand ... | 1978 | 706549 |
| perch and its parasites as heavy metal biomonitors in a freshwater environment: the case study of the ružín water reservoir, slovakia. | heavy metal concentrations were determined in 43 perches (perca fluviatilis) and in two of its most common parasites, the acanthocephalan acanthocephalus lucii and the cestode proteocephalus percae, collected in the period 2009-2010 from ružín, a seriously polluted water reservoir in slovakia. samples of muscle, liver, kidney, brain, male and female reproductive organs and adipose tissue of fish and both parasites were analyzed for as, cd, cr, cu, hg, mn, ni, pb and zn, by icp-ms. mean concentra ... | 2012 | 22736993 |
| [morphological variability of proteocephalus percae (müller 1780) parasitizing coregonid fishes]. | morphological variability of proteocephalus percae from native host--perch perca fluviatilis and two species of coregonids (whitefish coregonus lavaretus and arctic cisco c. autumnalis) from fish farms of karelia were studied. parasite groups from 3 host species differed by morphometric parameters. morphological structure of p. percae from native host included three morphs, those numbers were almost equal. parasite groups of whitefish and arctic cisco differed from that of perch in morphological ... | 2015 | 26373190 |
| host-parasite relationships as determinants of heavy metal concentrations in perch (perca fluviatilis) and its intestinal parasite infection. | the concentrations of as, cd, cr, cu, hg, mn, ni, pb, and zn and their bioconcentration factors (bcfs) were determined in two intestinal parasites, an acanthocephalan, acanthocephalus lucii, a tapeworm, proteocephalus percae, present in the same host, the european perch (perca fluviatilis, l.), in the heavily polluted ružín reservoir in eastern slovakia. the bioaccumulation of heavy metals in the fish organs and parasites was studied for acanthocephalan and tapeworm monoinfections or mixed infec ... | 2015 | 26432028 |
| influence of triaenophorus nodulosus plerocercoids (cestoda: pseudophyllidea) on the occurrence of intestinal helminths in the perch (perca fluviatilis). | concurrent infections of helminths in vertebrates are widespread and may demonstrate synergistic, antagonistic or negligible levels of interactions between species that share a common site. however, indirect interactions between species that occur in different organs of a host are poorly documented, particularly in fish. plerocercoids of triaenophorus nodulosus are common liver infections of european perch (perca fluviatilis). these larval cestodes cause extensive liver damage, resulting in syst ... | 2017 | 28069081 |
| endoparasites of european perch perca fluviatilis fry: role of spatial segregation. | a total of 246 perch perca fluviatilis l. fry, 20 to 106 d old from 3 different reservoir subpopulations (epipelagic perch fry, epf; bathypelagic perch fry, bpf; littoral perch fry, lpf), were examined for parasites. six species of endoparasites were found: the nematode camallanus lacustris was the most common, followed by the cestodes proteocephalus percae, bothriocephalus claviceps, glanitaenia osculata and the acanthocephalan acanthocephalus lucii. all worms were juvenile or immature and were ... | 2009 | 19899354 |
| [phenotypic variability of a perch parasite-cestode proteocephalus percae (müller, 1780) (proteocephalidea) in different parts of the species range]. | discrete variability of four p. percae characters of the main cestode functional complexes was identified. phenotypic diversity of p. percae from different parts of the distribution range was analysed. research revealed low geographic variability and high stability of the dominant variations in combination with morphometric plasticity. the conclusion was made that the patterns of p. percae morphological variability were shaped by the common fate and long-standing co-evolutionary relations betwee ... | 2005 | 16316056 |
| phylogenetic analysis of european species of proteocephalus (cestoda: proteocephalidea): compatibility of molecular and morphological data, and parasite-host coevolution. | the phylogeny of european species of the tapeworm genus proteocephalus was studied, based on partial 18s rdna and morphological data. the group was found to be monophyletic. the analysis showed a low informative value of available morphological characters in comparison with molecular data. the morphological matrix resulted in a poorly resolved tree which is, however, compatible with the topology (proteocephalus osculatus (proteocephalus torulosus (proteocephalus macrocephalus, proteocephalus fil ... | 2001 | 11429177 |
| enteric helminths of perch (perca fluviatilis l.) and yellow perch (perca flavescens mitchill): stochastic or predictable assemblages? | component communities of perch (perca fluviatilis l) in eurasia and the north american yellow perch (perca flavescens mitchill) were examined to determine the nature of their parasite communities. the scale of this investigation is continental and includes data collected across the distribution of each host species. data were compiled from the literature and from 5 sample sites in north america. four parasite species were found to occur frequently in the helminth component communities of p. flav ... | 1999 | 10577711 |
| frequency distributions of fish parasites in the perch perca fluviatilis l. from lake constance. | seventy perch (perca fluviatilis) caught in lake constance at langenargen in may 1990 were examined for parasites. the frequency distributions of the eyefluke diplostomum spathaceum (rudolphi, 1819), and the tapeworms proteocephalus percae (müller, 1780) and triaenophorus nodulosus (pallas, 1781) fitted closely to a negative binomial. only a few fish were highly parasitized. these fishes are devoured by the final hosts: gulls (diplostomum spathaceum) or the pike (triaenophorus nodulosus). the fi ... | 1997 | 9134560 |
| [the variability of the cestode perch parasite proteocephalus percae in its host's geographic range]. | qualitative heterogeneity and its quantitative expression in geographically distant populations of proteocephalus percae were studied. a wide spectrum of the possible values of the characters within which the expression of features is determined by environmental conditions, was detected. | 1995 | 8524612 |
| [the morphological diversity of populations of proteocephalus percae (proteocephalidae) in the reservoirs of karelia]. | morphological parameters of the cestode proteocephalus percae which is common parasite of a perch were studied in four water bodies of karelia. significant morphological variability was observed within populations of the parasite. the phenotypic structure of certain populations of parasite is complicated and differs one population from another. | 1993 | 8321559 |
| parasites of sticklebacks (actinopterygii: gasterosteidae) from south-eastern baltic sea (poland). | a total of 142 individuals of gasterosteus aculeatus l. and 22 individuals of pungitius pungitius (l.) from several areas of the coastal waters of the gdańsk bay both brackish- and freshwater were examined for parasites. the survey was carried out within 1988-1991. six parasite species, namely: gyrodactylus arcuatus, apatemon gracilis, sphaerostomum bramae, phyllodistomumfolium, neoechinorhynchus rutili, and argulus foliaceus were recovered from sticklebacks caught in freshwater habitats; while ... | 2005 | 16838625 |