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[the therapy of swimbladder inflammation (renicola sphaerosporosis) of carp].in pond experiments the efficiency of different chemotherapy variants against swimbladder inflammation (sbi) was proved. only by feeding of fumagillin, specifically affecting myxosporidians, the infection of kidney with sphaerospora renicola as well as the force of sbi could be reduced. the chemotherapy with metronidazole remained inefficacious, whereas the permanent feeding with methylene blue prevented only the infection with bothriocephalus acheilognathi and probably lowered insignificantly t ...19921610018
[seasonal dynamics of the population count of bothriocephalus opsariichthydis (cestoda, pseudophyllidea) and the differential infestation of carp yearlings of various genotypes]. 19892717201
new host records for the asian fish tapeworm, bothriocephalus acheilognathi, in endangered fish species from the virgin river, utah, nevada, and arizona. 19873572656
a note on the synonomy of bothriocephalus acheilognathi yamaguti, 1934, b. aegyptiacus rysavý and moravec, 1975 and b. kivuensis baer and fain, 1958.examination of stained and mounted syntype and topotype specimens of bothriocephalus aegyptiacus rysavý and moravec 1974, syntype specimens of b. kivuensis baer and fain 1958, and paratype specimens of b. acheilognathi yamaguti 1934 showed there to be no characters which could be used to differentiate the three species. a scanning electron microscope study of the scolices of paratype specimens of b. aegyptiacus, syntype specimens of b. kivuensis and specimens of b. acheilognathi also revealed no ...19873575288
the suprapopulation dynamics of bothriocephalus acheilognathi in a north carolina reservoir: abundance, dispersion, and prevalence.a 2 1/2-year study (september 1980-march 1983) of abundance, dispersion, and prevalence of the pseudophyllidean cestode, bothriocephalus acheilognathi, in 3 species of fish (gambusia affinis, notropis lutrensis, and pimephales promelas) was conducted in 3 ecologically distinct areas of a north carolina cooling pond. mean infrapopulation density and prevalence differed by site, season, and species and size of hosts. degree of aggregation and abundance and prevalence of gravid worms differed by sp ...19873656009
the growth, biomass, and fecundity of bothriocephalus acheilognathi in a north carolina cooling reservoir.an investigation of differences in growth, maturation, biomass, and fecundity of bothriocephalus acheilognathi in 3 host species was conducted on metapopulations from 3 distinct communities in belews lake, north carolina. the results indicated that host-specific differences in growth and biomass were additive among metapopulations from different localities. however, species-specific differences in maturation and fecundity exhibited differential variation between the sites. these site x host inte ...19873656010
the effect of praziquantel on the pseudophyllidean cestode bothriocephalus acheilognathi in vitro.adult bothriocephalus acheilognathi were incubated in solutions containing 0 (control), 0.1, 1.0, 10.0 and 100 micrograms praziquantel per ml (0, 10(2), 10(3), 10(4) and 10(5) micrograms l-1) of 0.9% saline for 5, 15 and 60 min at a temperature of 18 degrees c. the worms contracted immediately upon being placed in the drug. scanning and transmission electron microscopy revealed considerable tegumental damage particularly in the neck region. vacuolization and 'bubbling' of the tegument occurred i ...19854050031
[massive occurrence of bothriocephalus acheilognathi in pond carps]. 19725067289
bothriocephalosis in the common carp in the eastern transvaal.the first outbreak of bothriocephalosis in common carp in south africa is recorded. this condition was caused by bothriocephalus acheilognathi, a pseudophyllid tapeworm not previously identified in this country. methods to limit its spread are suggested.19807241498
[evaluation of 4 vermifuges against bothriocephalus acheilognathi in carp].with the aim to evaluate the efficacy of four vermicides, praziquantel, mebendazole, nitroscanate and triclorfon in the control of bothriocephalus acheilognathi in carps, one hundred and sixty, two year-old carps (ctenopharyngodon idellus) with an average weight of 120 g and a mean parasitic burden of 115.5 parasites/fish were used. five groups of 30 fish each were randomly formed. each group was then subdivided in three groups, each of 10 individuals/pond. the three subgroups of group a receive ...19947709095
helminth parasites of native hawaiian freshwater fishes: an example of extreme ecological isolation.the hawaiian islands harbor a depauperate native freshwater fish fauna comprised of 4 endemic gobies (gobiidae) and 1 endemic sleeper (eleotridae). we hypothesized that the natural helminth parasite community of these stream fishes would be depauperate because of colonizing constraints. in the absence of exotic fishes, native fishes in streams of hanakapi'ai and nu'alolo valleys harbored no adult helminth parasites. in hakalau stream on hawai'i and wainiha river on kaua'i, we found introduced sw ...19947931902
[the protein level in bothriocephalus acheilognathi cestodes and their hosts, carp fingerlings, in experimental feeding and starving of the fish]. 19938152846
[localization and activity of several enzymes in tissues of bothriocephalus acheilognathi and khawia sinensis tapeworms parasitizing carp].in this study, an attempt has been made to compare the most common species of tapeworms in carp: non-segmentary khawia sinensis and segmentary bothriocephalus acheilognathi on the basis of histoenzymatic examination of 8 enzymes, i.e. alkaline phosphatase, acid phosphatase, adenosine triphosphatase, nonspecific esterase alfa, succinic dehydrogenase, lactate dehydrogenase, leucine aminopeptidase and gamma-glutamylo transferase.19938237009
parasites in paradise: patterns of helminth distribution in hawaiian stream fishesof the 13 species of helminths that parasitize stream fishes in hawai'i, seven species are considered to be native to the archipelago and the remaining six species to be introduced by man. sources of colonization for native species are piscivorous birds for three species, and marine fishes for four species. non-native helminths have been brought to hawai'i in association with the importation of parasitized exotic species of poeciliids introduced into streams for mosquito control and as aquarium ...19989858626
parasites in cultured and feral fish.parasites, causing little apparent damage in feral fish populations, may become causative agents of diseases of great importance in farmed fish, leading to pathological changes, decrease of fitness or reduction of the market value of fish. despite considerable progress in fish parasitology in the last decades, major gaps still exist in the knowledge of taxonomy, biology, epizootiology and control of fish parasites, including such 'evergreens' as the ciliate ichthyophthirius multifiliis, a causat ...199910456421
the distribution of the introduced tapeworm bothriocephalus acheilognathi in australian freshwater fishes.native and exotic fishes were collected from 29 sites across coastal and inland new south wales, queensland and victoria, using a range of techniques, to infer the distribution of bothriocephalus acheilognathi (cestoda: pseudophyllidea) and the host species in which it occurs. the distribution of b. acheilognathi was determined by that of its principal host, carp, cyprinus carpio; it did not occur at sites where carp were not present. the parasite was recorded from all native fish species where ...200010881282
host specificity and population structure of two exotic helminths, camallanus cotti (nematoda) and bothriocephalus acheilognathi (cestoda), parasitizing exotic fishes in waianu stream, o'ahu, hawai'i.introduction of exotic fishes into hawai'ian streams has resulted in the simultaneous introduction of exotic parasites. camallanus corti (nematoda) and bothricephalus acheilognathi (cestoda) are the most prevalent and abundant fish helminths in hawai'ian streams. the population structure and host specificity of c. cotti and b. acheilognathi in exotic poeciliids were examined during may and june 1995 in waianu stream, o'ahu, hawai'i. prevalence and mean abundance of c. cotti were significantly di ...200312880255
seasonal and yearly population dynamics of two exotic helminths, camallanus coti (nematoda) and bothriocephalus acheilognathi (cestoda), parasitizing exotic fishes in waianu stream, o'ahu, hawaii.exotic poeciliid fishes introduced into hawaiian freshwaters are responsible for the introduction of several exotic parasites, of which the most important are camallanus cotti and bothriocephalus acheilognathi in terms of potential disease threat to native stream fishes. this roundworm and tapeworm are the most prevalent and abundant freshwater fish helminths in hawaiian streams. this study examined the seasonal and yearly population structure of c. cotti and b. acheilognathi to determine if the ...200314533687
aspects of the ecology of the asian tapeworm, bothriocephalus acheilognathi yamaguti, 1934 in yellowfish in the vaal dam, south africa.seasonal surveys were conducted at the vaal dam between april 2000 and january 2001. twenty smallmouth yellowfish (labeobarbus aeneus) and 20 largemouth yellowfish (labeobarbus kimberleyensis) were collected with the aid of gill nets. surface water quality variables were included. the cestodes were identified as either bothriocephalus acheilognathi yamaguti, 1934 or "other cestode spp.". the majority (99.8%) of the cestodes found in both yellowfish species were identified as b. acheilognathi (as ...200516300189
[an investigation of helminth fauna of the bleak (alburnus alburnus l.) from the mustafakemalpasa stream, bursa, turkey].the purpose of the present study was to determine the helminth fauna of the bleak (alburnus alburnus l.). according to the results obtained, a total of 6 species of helminth parasites were encountered on the bleak. these parasites include dactylogyrus alatus, d. fraternus and diplozoon homoion (monogenea) on the gills; bothriocephalus acheilognathi (cestoda) and rhapdochona denudata (nematoda) in the intestine; and diplostomum sp. (digenea) in the eyes, on the surface of body and on the fins.200617106861
[metazoan parasites of carp (cyprinus carpio linnaeus, 1758) and vimba (vimba vimba linnaeus, 1758) in the sapanca lake].in this study metazoan parasites of carp (cyprinus carpio linnaeus, 1758) and vimba (vimba vimba linnaeus, 1758) in the lake sapanca were investigated from january 2004 to december 2004. a total of 31 fish were investigated. out of the 16 c. carpio, 13 were infected by parasites and of the 15 v. vimba, 11. the parasites found in c. carpio were: dactylogyrus phoxini (malevitskaya, 1949), dactylogyrus extensus (müller, van cleave, 1932), gyrodactylus sp. monogenoidea, caryophyllaeus laticeps (pall ...200617124667
evidence of experimental postcyclic transmission of bothriocephalus acheilognathi in bonytail chub (gila elegans).we examined the role that predation of infected conspecific fish and postcyclic transmission might play in the life cycle of the asian fish tapeworm, bothriocephalus acheilognathi (cestoda: pseudophyllidea) yamaguti, 1934. young-of-the-year (yoy) bonytail chub (gila elegans) were exposed to copepods infected with b. acheilognathi and subsequently fed to subadult bonytail chub. within 1 wk after consumption of the yoy chub, subadults were necropsied and found infected with gravid and nongravid ta ...200717436966
estimation of the endohelminth parasite species richness in freshwater fishes from la mintzita reservoir, michoacán, mexico.in total, 9 endohelminth species were found to parasitize 7 fish species (2 cyprinids, 4 goodeids, and 1 poeciilid) from la mintzita reservoir, michoacán, in central mexico; 5 were larvae, including 3 allogenic species (clinostomum complanatum, tylodelphys sp., posthodiplostomum minimum) and 2 autogenic species (serpinema trispinosum, spiroxys sp.). four were enteric autogenic adults, i.e., margotrema bravoae, bothriocephalus acheilognathi, proteocephalus longicollis, and rhabdochona lichtenfels ...200818372653
[a study on the helminth fauna linked to seasonal changes and size of the fish host, leuciscus cephalus l., from lake dam orenler, afyonkarahisar].in this study, the presence of helminths on 103 leuciscus cephalus from the orenler dam lake, turkey was investigated from july 2007 to may 2008. five parasite species were found in the host fish: of these species dactylogyrus vistuale was found in the gills (42.7%, 10.6+/-14.8 parasite/fish), diplostomum sp. in the lens of eyes (12.6%, 4.1+/-4.0), bothriocephalus acheilognathi in the intestine (23.3%, 4.8+/-10.4), ligula intestinalis in the body cavity (12.6%, 2.1+/-1.2), and pomphorhynchus lae ...200919851976
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 ...19921339972
bothriocephalus acheilognathi (cestoda: pseudophyllidea) parasite of freshwater fish in italy.a redescription of bothriocephalus acheilognathi a pseudophyllidean cestode parasitizing cyprinid fish is given. the authors outline the hazard of dissemination of this parasite in other italian fish-producing areas.19921339970
asian fish tapeworm bothriocephalus acheilognathi in the desert southwestern united states.the asian fish tapeworm bothriocephalus acheilognathi (cestoda: bothriocephalidea) is an introduced fish parasite in the southwestern united states and is often considered a serious threat to native desert fishes. determining the geographic distribution of nonnative fish parasites is important for recovery efforts of native fishes. we examined 1,140 individuals belonging to nine fish species from southwestern u.s. streams and springs between january 2005 and april 2007. the asian fish tapeworm w ...201021413512
antibody response of carp, cyprinus carpio to the cestode, bothriocephalus acheilognathi.the humoral antibody response and the number of pronephric antibody-secreting cells were examined in naturally bothriocephalus acheilognathi-infected carp. cyprinus carpio, and in those injected intraperitoneally with an extract of the cestode. in the extract-injected fish, specific antibody was detected 3 weeks after a second injection given 2 weeks after the primary injection, and antibody levels persisted for more than 200 days. a third injection also enhanced the antibody level in the extrac ...199910406042
[morphohistochemical studies of the carp intestines in bothriocephaliasis].morphohistochemical study of host-parasite relationships after the infection of carp with bothriocephalus opsariichthydis was conducted. it has been found out that the whole parasite's strobile comes into close contact with tissues of the mucous membrane of the carp's gut. the destruction of the gut's wall results from its digestion or lysis that is confirmed by high activity of acid phosphatase. together with epithelium of the mucous membrane of the gut exodermis of the helminth takes an active ...19836877860
bothriocephalus acheilognathi (cestoda) in the endangered fish profundulus hildebrandi (cyprinodontiformes), mexico.the asian fish tapeworm, bothriocephalus acheilognathi, has been considered one of the most dangerous parasites for cultured carp and a risk for native freshwater fish populations worldwide. this cestode is highly pathogenic for fishes especially fry. in this paper we record b. acheilognathi parasitizing the endangered and endemic freshwater fish profundulus hildebrandi from the endorheic basin of san crist6bal de las casas, chiapas, mexico. b. acheilognathi was recorded from 10 of the 11 sample ...201122017116
cooling water of power plant creates "hot spots" for tropical fishes and parasites.thermally altered water bodies can function as "hot spots" where non-native species are establishing self-sustaining populations beyond their tropical and subtropical native regions. whereas many tropical fish species have been found in these habitats, the introduction of non-native parasites often remains undetected. here, n = 77 convict cichlids (amatitlania nigrofasciata) were sampled by electro-fishing at two sites from a thermally altered stream in germany and examined for parasite fauna an ...201626374537
spatial and temporal distribution of the asian fish tapeworm bothriocephalus acheilognathi (cestoda: bothriocephalidea) in the rio grande (río bravo del norte).recent collections of the asian fish tapeworm bothriocephalus acheilognathi in the rio grande have raised concern about the potential impacts on rio grande endemic and imperiled fishes. the objectives of this study were to determine distribution and definitive hosts of the asian fish tapeworm within the rio grande drainage and to quantify occurrences and abundances. in total, 1,992 fish spanning 11 families were collected and examined for asian fish tapeworms in the rio grande and the pecos and ...201021192548
bothriocephalus acheilognathi and other intestinal helminths of cyprinella lutrensis in deep creek, kansas.we investigated the intestinal parasites of a wild fish population in a kansas stream to determine the prevalence and abundance of potentially harmful parasites. in total, 180 red shiners (cyprinella lutrensis) were collected from 6 sites in october-november 2007. fifteen asian tapeworms (bothriocephalus acheilognathi) were recovered from 13 fish (prevalence of 7.2%). prevalence did not differ among sites; however, b. acheilognathi abundance was greatest at the site of a public fishing area. a t ...200919366281
x-ray microanalysis (edxma) of cadmium-exposed eggs of bothriocephalus acheilognathi (cestoda: bothriocephalidea) and the influence of this heavy metal on coracidial hatching and activity.over recent years it has been established that pollutants can have a significant impact on host-parasite systems in the aquatic environment, so much so that it has been proposed that parasite fauna may be a useful parameter to monitor water quality. surprisingly, with perhaps the exception of trematodes and bioaccumulation in adult acanthocephalans, detailed observations on the interaction between helminths, particularly cestodes, and pollutants such as heavy metals, are lacking. in this study, ...200919341741
first record of bothriocephalus acheilognathi in the rio grande with comparative analysis of its2 and v4-18s rrna gene sequences.bothriocephalus acheilognathi is an introduced tapeworm in north america often reported as a serious ecological threat to native fishes. in this paper, we report the first record of b. acheilognathi in the big bend region of the rio grande in texas (known as the río bravo del norte in mexico). identification of b. acheilognathi was confirmed by morphologic and genetic techniques (sequences of its2 and v4-18s rrna genes). its prevalence was 27% and its intensity ranged from 1 to 5 individuals in ...200718201046
helminth infections in common carp, cyprinus carpio l., 1758 (cyprinidae) from kovada lake (turkey).the aim of this study which was carried out from march 2003-february 2004 was to determine the parasites of carp (cyprinus carpio l., 1758) inhabiting the kovada lake. during the study, a total of 63 common carps were caught in different regions of kovada lake each month and investigated parasitologically. in carps, the ectoparasite, dactylogyrus minutus of monogenea, was found and endoparasites; bothriocephalus acheilognathi and caryophyllaeus laticeps of cestoda were found. the most common par ...200717918067
[parasites taxonomic diversity of agnathans and fishes of volga river basin. iv. amphilinida and cestoda].the checklist of amphilinida and cestoda of fish in the volga basin is presented with indication of host and distribution in different areas of the basin. the data on cestodes of 51 fish species are given. the checklist includes 40 species of cestodes and 1 species of amphilins. the families caryophyllaeidae (8 species) and proteocephalidae (10 species) are the most numerous. cestodes bothriocephalus acheilognathi and khawia sinensis have been introduced into the volga basin occasionally during ...200717578242
[an investigation of parasites of tench (tinca tinca l., 1758) in beyşehir lake].the aim of this study that was carried out from march 15, 2003 to february15, 2005 was to determine the parasites of tench (tinca tinca l., 1758) inhabiting the beyşehir lake. during the study, a total of 334 tenches (t. tinca ) were caught in different regions of beyşehir lake monthly and investigated parasitologically. endoparasites in tenches were found to be plerocercoids of ligula intestinalis, caryophyllaeus laticeps, bothriocephalus acheilognathi and proteocephalus torulosus from cestoda, ...200617309041
[an investigation of metazoan parasites of common carp (cyprinus carpio l.) in lake eber, afyon, turkey.].in this study, metazoan parasites of the following fish species were investigated in lake eber (afyon) from july 2002-2003. at the end of this research, 2 species of monogenea (gyrodactylus elegans, dactylogyrus extensus) were found on the gills and fins of the fishes; 1 species of digenea (posthodiplostomum cuticola), on skin and fins; 1 species of cestoda (bothriocephalus acheilognathi) in the intestines; and 1 species of arthropoda (argulus foliaceus), the skin, gills and fins of fish. the di ...200517160824
clestobothrium gibsoni n. sp. (cestoda: bothriocephalidae) from the bullseye grenadier bathygadus macrops goode & bean (macrouridae) in the gulf of mexico.clestobothrium gibsoni n. sp. is described from the intestine of the bullseye grenadier bathygadus macrops (macrouridae) collected in the northeastern gulf of mexico. the new species can be distinguished from both c. crassiceps (rudolphi, 1819), the type-species of the genus, and c. neglectum (lönnberg, 1893), the second species in the genus, by its unique ovary, which is transversely elongate and tapered on both ends rather than being u-or h-shaped, and by having more testes (60-65 vs 40-50 and ...200515791401
parasites of native and nonnative fishes of the little colorado river, grand canyon, arizona.a 2-yr, seasonal, parasitological study of 1,435 fish, belonging to 4 species of native fishes and 7 species of nonnative fishes from the lower little colorado river (lcr) and tributary creeks, grand canyon, arizona, yielded 17 species of parasites. these comprised 1 myxozoan (henneguya exilis), 2 copepods (ergasilus arthrosis and lernaea cyprinacea), 1 acarine (oribatida gen. sp.), 1 piscicolid leech (myzobdella lugubris), 4 monogeneans (gyrodactylus hoffmani, gyrodactylus sp., dactylogyrus ext ...200415562604
characterization of development-related genes for the cestode bothriocephalus acheilognathi.differential gene expression of mature and immature bothriocephalus acheilognathi cestodes was analyzed using the suppression subtractive hybridization technique. five mature-associated cdnas were isolated and characterized. virtual northern blot and rt-pcr analyses confirmed that four of the five genes were upregulated in mature parasites. the sequence analysis revealed that one gene encoded the structural protein chorion precursor, and the three encoded functional proteins homologous to yolk f ...200415365820
sinergasilus polycolpus, a new copepod species in the ichthyoparasitofauna of serbia and montenegro.the parasitic copepod sinergasilus polycolpus was identified on the gills of bighead carp aristichthys nobilis from 2 localities (kladovo and slankamen) in the serbian part of the river danube. this parasite is species-specific for 2 chinese carp, the bighead carp and the silver carp hypophthalmichthys molitrix. it was accidentally introduced into serbia and montenegro together with fry of these herbivorous carp intended for aquaculture and control of phytoplankton blooms. there is no record in ...200415109152
clestobothrium neglectum (lönnberg, 1893) n. comb. (cestoda: bothriocephalidae) from the tadpole fish raniceps raninus (l.) (gadidae) from sweden.clestobothrium neglectum (lönnberg, 1893) n. comb. is redescribed from specimens previously deposited in the natural history museum, london, uk by dr david i. gibson obtained from the intestine of the tadpole fish raniceps raninus (gadidae) collected from off the western coast of sweden, near kristineberg. c. neglectum resembles c. crassiceps (rudolphi, 1819), the type- and only species currently recognised in the genus, but differs in having fine spiniform-like structures that are likely microt ...200314707504
genetic differentiation in populations of the cestode bothriocephalus acheilognathi (cestoda, pseudophyllidea) as revealed by eight microsatellite markers.the genetic structure of populations of the fish cestode, bothriocephalus acheilognathi collected from bailianhe reservoir (blh), changshou (csh) and liangzi (lzh) lakes was investigated by using 8 microsatellite loci. a total of 108 adult worms were genotyped at each of the 8 loci. for the 3 populations, the mean number of alleles per locus ranged from 2.38 to 5.5, and the mean expected heterozygosity ranged from 0.432 to 0.559. the average polymorphic information content (pic) was from 0.384 t ...200312793654
molecular variation of bothriocephalus acheilognathi yamaguti, 1934 (cestoda: pseudophyllidea) in different fish host species based on its rdna sequences.the molecular variation in bothriocephalus acheilognathi yamaguti, 1934 from 11 species of freshwater fish collected in australia, china, the czech republic, england and hawaii was investigated by determining the nucleotide sequences of the internal transcribed spacer region. the length of the first and second internal transcribed spacer sequences of multiple individuals ranged from 553 to 571 bp and 553 to 615 bp, and the g + c content from 53.1 to 53.5%. the percentage sequence divergence vari ...200212075148
[effect of the cestoda bothriocephalus acheilognathi on morphology and physiology of carps reared in warm water].influence of the cestode bothriocephalus acheilognathi on morphological and physiological characteristics of carps and protein content in organs and tissues of fishes reared in basins with warm water have been studied. dynamics of weight, length, height and index of nourishment state have been examined in carps noninfected and infected with cestodes.200111558343
effects of bothriocephalus acheilognathi on the polarization response of pronephric leucocytes of carp, cyprinus carpio.an in vitro assay was used to examine the effect of bothriocephalus acheilognathi yamaguti, 1934 (cestoda: pseudophyllidea) on the polarization response of pronephric leucocytes of carp, cyprinus carpio. leucocytes, isolated from naive, naturally-infected fish and carp injected intraperitoneally with cestode extracts, were exposed to parasite extracts (protein concentrations 0-10.0 microg ml-1), for up to 24 h in the presence or absence of carp serum. in general, polarization responses of the pr ...200010953226
occurrence of bothriocephalus acheilognathi in cyprinid fish from three lakes in the flood plain of the yangtze river, china.cyprinid fish, hemiculter leucisculus, cultrichthys erythropterus and culter dabryi, were sampled from liangzi, honghu and tangxun lakes in the flood plain of the yangtze river. the cestode bothriocephalus acheilognathi yamaguti, 1934 was found in the 3 lakes, but c. erythropterus sampled from liangzi lake was found uninfected due probably to the small sample size. findings of the cestode in the 3 lakes represent the first record of the parasite in the flood plain of the yangtze river, indicatin ...200010907142
[The Seasonal Distribution and Effect of Tench Fish (Tinca tinca L., 1758) Helminthes Parasites Living in Terkos Lake].Objective: The aim of this study, carried out from August, 2009 to July, 2010, was to determine the seasonal distribution of tench fish (Tinca tinca L. 1758) helminthes inhabiting the Terkos lake. Methods: Living fish gathered from the study area were brought into the laboratory. The species analysis done by ecto and endo parasites of the fish were investigated. Results: During the study, a total of 165 tenches (T. tinca) were investigated. Endoparasites in tenches were f ...201122203507
proliferation of pronephric lymphocytes of carp, cyprinus carpio induced by extracts of bothriocephalus acheilognathi.the interaction between bothriocephalus acheilognathi yamaguti, 1934 (cestoda) and pronephric lymphocytes of carp, cyprinus carpio l. was studied by examining proliferation of lymphocytes isolated from both naïve fish and fish injected intraperitoneally with cestode extract. lymphocytes from naïve hosts were stimulated to proliferate in the presence of the extract depending upon the extract protein concentrations; lower concentrations (0.01-0.05 microgram/ml) induced the greatest response, and i ...19968960208
bothriocephalus pearsei n. sp. (cestoda: pseudophyllidea) from cenote fishes of the yucatan peninsula, mexico.the cestode bothriocephalus pearsei n. sp. is described from the intestine of the cichlid cichlasoma urophthalmus (günther) from cenote (= sinkhole) zaci near valladolid, yucatan, mexico. the pimelodid catfish rhamdia guatemalensis günther, which also harbored conspecific cestodes, seems to represent accidental or postcyclic host of b. pearsei. the new species differs from congeners mainly by the morphology of the scolex, which is clavate, with the maximum width in its middle part, has a distinc ...19968885891
pathological and ecological host consequences of infection by an introduced fish parasite.the infection consequences of the introduced cestode fish parasite bothriocephalus acheilognathi were studied in a cohort of wild, young-of-the-year common carp cyprinus carpio that lacked co-evolution with the parasite. within the cohort, parasite prevalence was 42% and parasite burdens were up to 12% body weight. pathological changes within the intestinal tract of parasitized carp included distension of the gut wall, epithelial compression and degeneration, pressure necrosis and varied inflamm ...201122022606
parasites of fishes in the colorado river and selected tributaries in grand canyon, arizona.abstract as part of the endangered humpback chub (hbc) gila cypha adaptive management program, a parasite survey was conducted from 28 june - 17 july 2006 in 8 tributaries and 7 adjacent sections of the main stem colorado river (cor). in total 717 fish were caught, including 24 hbc, field necropsies yielded 19 parasite species, 5 of which (achtheres sp., kathlaniidae gen. sp., caryophyllaidae gen. sp., myxidium sp., and octomacrum sp.) are new records for the grand canyon. spearman's correlation ...201121793700
infection level of the asian tapeworm (bothriocephalus acheilognathi) in the cyprinid fish, schizothorax niger, from anchar lake, relative to season, sex, length and condition factor.various studies have shown that the asian fish tapeworm, bothriocephalus acheilognathi causes great economic loss in hatcheries, fish farms as well as in lakes. in order to understand the seasonal variation of infection in a nutrient-enriched lake, parasitological investigation was carried out in the indigenous cyprinid fish, schizothorax niger heckel 1838 from september, 2008 to august, 2009. overall, this study revealed definite seasonality of infection (pôçë<ôçë0.05), with greater infection i ...201121739312
the invasive fish tapeworm atractolytocestus huronensis (cestoda), a parasite of carp, colonises africa.biological invasions represent a serious threat for aquaculture because many of introduced parasites may negatively affect the health state of feral and cultured fish. in the present account, the invasive tapeworm atractolytocestus huronensis anthony, 1958 (cestoda: caryophyllidea), which was originally described from north america and has been introduced to europe including the british isles with its specific host, common carp (cyprinus carpio l.), is reported from africa for the first time. it ...201526091762
distribution of helminth parasites in intestines and their seasonal rate of infestation in three freshwater fishes of kashmir.the present study was undertaken to determine the incidence of helminth parasites in fishes with special reference to water quality parameters in dal lake and river jhelum and correlate the observations. water, fish, and parasite samples were collected during different seasons from various sites and processed. three fish species, namely, schizothorax niger heckel 1838, schizothorax esocinus heckel 1838, and schizothorax curvifrons heckel 1838, were recovered from these water bodies. the physicoc ...201627738522
endoparasites of some economically important food fishes of river jhelum, kashmir (india).during the present study endo-parasitic fauna of fish at different sites of river jhelum were analysed. four different species of endoparasites were recovered from schizothorax species which include adenoscolex kashmirensis mehra, 1930, bothriocephalus acheilognathi yamaguti, 1934, echinorhynchus sp., pomphorhynchus kashmirensis kaw, 1941, belong to phylum platyhelminths and phylum acanthocephala. prevalence and generation time were inversely proportional to each other. prevalence and mean abund ...201627605799
paralogues of nuclear ribosomal genes conceal phylogenetic signals within the invasive asian fish tapeworm lineage: evidence from next generation sequencing data.complete mitochondrial genomes and nuclear rrna operons of eight geographically distinct isolates of the asian fish tapeworm schyzocotyle acheilognathi (syn. bothriocephalus acheilognathi), representing the parasite's global diversity spanning four continents, were fully characterised using an illumina sequencing platform. this cestode species represents an extreme example of a highly invasive, globally distributed pathogen of veterinary importance with exceptionally low host specificity unseen ...201627155330
temporal changes in growth, condition and trophic niche in juvenile cyprinus carpio infected with a non-native parasite.in host-parasite relationships, parasite prevalence and abundance can vary over time, potentially impacting how hosts are affected by infection. here, the pathology, growth, condition and diet of a juvenile cyprinus carpio cohort infected with the non-native cestode bothriocephalus acheilognathi was measured in october 2012 (end of their first summer of life), april 2013 (end of first winter) and october 2013 (end of second summer). pathology revealed consistent impacts, including severe compres ...201526394706
molecular phylogeny of the bothriocephalidea (cestoda): molecular data challenge morphological classification.in this study, the relationships of the cestode order bothriocephalidea, parasites of marine and freshwater bony fish, were assessed using multi-gene molecular phylogenetic analyses. the dataset included 59 species, covering approximately 70% of currently recognised genera, a sample of bothriocephalidean biodiversity gathered through an intense 15year effort. the order as currently circumscribed, while monophyletic, includes three non-monophyletic and one monophyletic families. bothriocephalidae ...201526183667
first record of the invasive asian fish tapeworm bothriocephalus acheilognathi in honduras, central america.this paper provides the first report of the invasive asian fish tapeworm, bothriocephalus acheilognathi yamaguti, 1934, in honduras. the cestode was found in profundulus portillorum (cyprinodontiformes: profundulidae), which represents a new host record, and which is a member of a genus faced with a variety of conservation challenges, now potentially complicated by the presence of this pathogenic cestode. nearly complete sequence data from the its-1 5.8s and its-2 regions corroborate the determi ...201525654444
first identification of eggs of the asian fish tapeworm bothriocephalus acheilognathi (cestoda: bothriocephalidea) in human stool.we report the first case of egg isolation of the asian fish tapeworm bothriocephalus acheilognathi (bothriocephalidea) from human stool. a male patient from saint laurent du maroni (french guiana) presenting abdominal pain was examined in france for the diagnosis of intestinal parasites. diphyllobothrium-like eggs were observed in his stool. however, molecular phylogenetic analyses based on sequences of rdna and coi genes showed that the eggs observed belong to a bothriocephalidean cestode b. ac ...201323422154
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