| [cytochemical characteristics of the labrocyte-like cells in the capsule of the plerocercoids of triaenophorus nodulosus (pallas, 1781) and diphyllobothrium dendriticum (nitzsch, 1824) cestodes]. | out of six fish species examined (esox lucius, paracottus kessleri, perca fluviatilis, leuciscus leuciscus baicalensis, coregonus autumnalis migratorius, thymallus arcticus baicalensis) labrocyte-like cells were detected in esox lucius, leuciscus leuciscus baicalensis, coregonus autumnalis migratotius. the cells contain large metachromatic granules. histochemical methods revealed in them sulfated and carboxylic acid mucopolysacharides. the amount of labrocyte-like cells in the capsules around pl ... | 1977 | 143258 |
| [development of the neural apparatus of triaenophorus nodulosus (cestoidea, pseudophyllidae) during ontogenesis]. | the anatomy of the nervous apparatus of triaenophorus nodulosus at all stages of its life cycle was studied by means of zherebtsov's hystochemical method. judging by the cholinesterase activity the mass of nerve cells is situated in the oncospheres of the coracidium. at the procercoid stage the ortogonal nervous system arises with three pairs of the longitudinal nervous trunk. in plerocercoids the number of longitudinal trunks increases up to 7 pairs, the rough nervous plexus and inner plexus de ... | 1977 | 896268 |
| [changes in the argyrophil stroma of the liver of fishes infested with the pleurocercoids, triaenophorus nodulosus and diphyllobothrium dendriticum (cestoidea, pseudophyllidae)]. | the argentaffine stroma of the liver of some fishes (perca fluviatilis, exos lucius, paracottus kessleri, coregonus autumnalis migratorius, thymallus arcticus) is described. the nature and depth of pathological changes in the argentaffine stroma of the liver at its infection with pleurocercoids of pseudophyllids depend on the infection intensity, host's specificity and on the biocoenotic relationships of hydrobionts in a waterbody. | 1977 | 896280 |
| [study of the cumulation, desorption and mechanism of action of organochlorine pesticides on fish cestodes]. | the distribution of residues of ddt and its metabolites (ddd and dde) in tissues of triaenophorus nodulosus and its host was studied. it has been noted that cestodes can accumulate chlororganic substances in great quantity. the ability of bothriocephalus gowkongensis has been established to dechlorate pp-ddt and to excrete pp-, op- and mp-ddd from the organism. pp-ddt decreases the glycogene content and causes the rise of amylolytic activity in the above cestodes in acute tests. the effect of pp ... | 1976 | 958717 |
| effect of methoxychlor on the embryonic development and respiratory metabolism of fasciola hepatica (trematoda) and triaenophorus nodulosus (cestoda) embryos. | | 1976 | 1016906 |
| [effect of procercoids of triaenophorus nodulosus on the biology of their 1st imtermediate hosts cyclops strenuus]. | the effect of procercoids of t. nodulosus on the periods of metamorphosis, fecundity, survival and the capacity to infect c. strenuus at all copepodid stages (i-v) was studied experimentally. it has been first shown that early copepodid stages (i-iii) can be easily infected and serve as first intermediate hosts of t. nodulosus. under the effect of the parasite the metamorphosis periods of the i and 2-nd copepodid stages increase considerably even at the low infection intensity while at the iv an ... | 1976 | 1026910 |
| the effect of foschlor and mcpa upon the embryo development of fasciola hepatica (trematoda) and triaenophorus nodulosus (cestoda). | | 1975 | 1164689 |
| 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 |
| segregation and co-occurrence of larval cestodes in freshwater fishes in the bothnian bay, finland. | two autogenic (triaenophorus crassus and t. nodulosus) and four allogenic (diphyllobothrium latum, d. dendriticum, d. ditremum and schistocephalus solidus) larval cestode species were found in 13 out of 31 fish species studied from the bothnian bay, ne baltic. gasterosteus aculeatus was the most heavily infected fish with 4 larval cestode species; for two of them (d. ditremum and s. solidus) the three-spined stickleback was found to be the required fish intermediate host. among allogenic cestode ... | 1992 | 1614732 |
| [the causes of the formation of an intensive focus of triaenophoriasis in the upper tuloma river reservoir]. | observations on the triaenophorus crassus invasion in coregonus lavaretus and esox lucius were carried out in the period of 1984 to 1989 in the upper tuloma river [correction of verkhnetulomsk] water reservoir and pechozero water body (the pecha river) which form a common basin. significant differences were noted in the infection rate of fishes with this parasite in the above water bodies. in pechozero, where there are preserved natural conditions and therefore an ecological equilibrium in the h ... | 1991 | 1839932 |
| the karyotypes of triaenophorus nodulosus and t. crassus (cestoda: pseudophyllidea). | two species of the genus triaenophorus were found to have widely different chromosome sets. the karyotype of t. nodulosus consists of 26 biarmed chromosomes ranging from 1.45 to 6.75 microns long. the diploid set of t. crassus contains 18 chromosomes with a well-distinguished first pair of large metacentric homologues. all the chromosomes with the exception of the last pair of acrocentric elements are biarmed. their absolute length ranges from 1.50 to 8.50 microns. the possible pathways of karyo ... | 1991 | 2040557 |
| triaenophorus nodulosus and t. crassus in fish from northern finland. | 10,288 fish specimens of 34 species from three water bodies in northern finland were studied mainly in 1978-1982 triaenophorus nodulosus and t. crassus parasites. six of the 31 species from the bothnian bay were found to harbour t. nodulosus plerocercoids, four of the 11 from the cold, oligotrophic lake yli-kitka in northeastern finland and only one of the 6 from the small, eutrophic lake kuivasjärvi. the ruff (gymnocephalus cernuus) was most essential intermediate host in the lakes, as supporte ... | 1989 | 2488051 |
| [a population analysis of the variability of the hooklets in the cestode triaenophorus crassus]. | the paper presents data on the variability of attachment organs in the cestode triaenophorus crassus, a parasite of freshwater fishes. the greatest range of variability of all the characters is typical of whitefish, a fish with a long life cycle, while the shortest one is characteristic of vendace and young of trout. it is suggested that the stay of the parasite in fishes, associated with host age, is accompanied by the increase in average sizes of hooks and variability range. such an approach t ... | 1989 | 2530490 |
| helminth position within the intestine of naturally infected pike (esox lucius) relative to host stomach contents. | the positions of 3 cestode species, triaenophorus crassus forel, triaenophorus nodulosus (pallas), and proteocephalus pinguis larue, and a nematode, raphidascaris acus (bloch), within the intestine of naturally infected pike (esox lucius l.) were evaluated with respect to the presence or absence and state of digestion of host stomach contents. the positions of scolices and strobilae of the cestodes did not vary with respect to host stomach contents. by contrast, r. acus was anterior (near the st ... | 1989 | 2614600 |
| [carbohydrate transport in the cestode triaenophorus nodulosus]. | the data demonstrating the presence of the glucose active transport system in the cestode t. nodulosus are obtained. kinetic characteristics of the transport are estimated and their dependence on the incubation temperature are shown. heterogeneity of the worm body in respect to transport processes and their dependence on the physiological state of cestodes are discovered. the absorption of different forms of glucose is studied and the similarity of digestion processes in parasites and their host ... | 1989 | 2771429 |
| [distribution and mechanism of the regulation of the pleurocercoid population count of triaenophorus nodulosus (cestoda, triaenophoridae)]. | the character of the distribution of pleurocercoids of triaenophorus nodulosus depending on the host age is shown. their distribution in perch at the age of 0+-4+ is over dispersed in its character and is described by negative binomial. at the age of 5+ to 8+ the distribution of parasites is of regular character that is apparently due to changes in the mechanism of regulation of the parasites number. the regulation mechanism of the number of pleurocercoids of t. nodulosus is discussed. | 1987 | 2963255 |
| [enzyme serologic studies of the arctic char (salvelinus alpinus l.) of lake königssee affected by triaenophorus nodulosus]. | | 1986 | 3814071 |
| [effect of cestodes on the tissue lipid composition of the burbot and stickleback]. | the effect of cestodes of the genus diphyllobothrium on the lipoid contents of tissues of freshwater fishes has been studied. the level of general lipids in the liver of burbot and stickleback infected with plerocercoids of d. latum and d. vogeli, respectively, decreases. it occurs in general on account of decrease in contents of structural lipids, phospholipids, while the contents of triacylglycerines, cholesterol and its ethers change but negligibly. simultaneous parasitism of plerocercoids of ... | 1985 | 4011309 |
| [electron microscopic study of the processes of origination and formation of the integument in cestoda as exemplified by triaenophorus nodulosus]. | | 1973 | 4358837 |
| effect of chronic action of sublethal pesticide concentrations (sodium methyldithiocarbamate--vapam). activity on the metabolic of fasciola hepatica (trematoda) and triaenophorus nodulosus (cestoda) embryos. | | 1974 | 4413030 |
| [origin and formation of microtrichia in cestodes exemplified by electron microscopic data on triaenophorus nodulosus]. | | 1972 | 4642925 |
| [first intermediate hosts of tapeworms of the genus triaenophorus (pseudophyllidea)]. | | 1972 | 4668522 |
| investigations on the oxidation-reduction activity in embryos and coracidia of triaenophorus nodulosus (pall.) by the chemiluminescence method. | | 1969 | 5380518 |
| [electron microscopic data on lipid excretion in triaenophorus nodulosus (pall)]. | | 1967 | 5596096 |
| [an experimental study of the development cycle of triaenophorus nodulosus (pall. 1760) (cestoda, pseudophyllidae)]. | | 1966 | 5967987 |
| [the dependence of parasites on external factors--demonstrated by coregonus infected with triaenophorus crassus (cestoidea, pseudophyllidea)]. | | 1966 | 6010420 |
| experimental infections of rainbow trout, salmo gairdneri richardson, with plerocercoids of triaenophorus crassus forel. | this study concerned the suitability of rainbow trout as an experimental host for plerocercoids of triaenophorus crassus. twenty-five trout were exposed to cyclops bicuspidatus thomasi infected with procercoids of t. crassus. plerocercoids were recovered from 11 of these fish. hemorrhaging in the muscle was the first evidence of infection in live fish between days 22-58 postinfection (pi). migration of worms created extensive lesions in the muscle by day 30 pi followed by formation of granulomas ... | 1984 | 6716558 |
| [temperature dependence of the arginase activity of the plerocercoids of triaenophorus nodulosus and diphyllobothrium latum]. | the effect of temperature on the arginase enzyme activity in triaenophorus nodulosus and diphyllobothrium latum was studied. the temperature optimum of arginase of t. nodulosus (definitive hosts are fishes) is at 27 degrees while in d. latum it is at 57 degrees. it has been inferred that a certain preadaptation of some enzyme properties (temperature optimum, thermostabolity) to a temperature regime of a definitive host takes place. biochemical mechanisms of preadaptation of enzyme systems of hel ... | 1982 | 7155629 |
| [effect of hydraulic structures and water storage basins on the parasitic fauna of the atlantic salmon (salmo salar)]. | 157 specimens of salmo salar l. belonging to different age groups were examined in the region of the lower-tuloma hydropower-station. 13 species of parasites (of them 5 are freshwater) were found in anadromous migrants. the character of the parasite fauna and the structure of fishes' scale have shown that some salmons cannot get the fishrunning over and stay in summer months under the damb where become infected with freshwater parasites. 19 species of parasites (of them 14 are freshwater) were f ... | 1980 | 7375139 |
| [fatty acid composition of the helminths of cold- and warm-blooded vertebrates]. | studies have been made on fatty acid composition of 5 species of parasitic helminthes from fish, birds and mammals. as compared to the lipids from helminthes of endothermic animals (diphylobothrium dendriticum and toxascaris leonina), those from fish parasites (eubothrium crassum, triaenophorus nodulosus and metechynorhynchus salmonis) are less saturated and contain higher amounts of penta- and hexaenic acids, acids of omega 3 type, being less rich in the content of stearic, oleic, dienic and om ... | 1980 | 7468010 |
| parasite infections in danish trout farms. | samples from 5 danish freshwater trout farms rearing rainbow trout (oncorhynchus mykiss) were examined for parasite infections from october 1993 until november 1994 and recorded parasites are listed. in addition, results from an examination of a mariculture net cage system are presented as well. a total of 10 metazoan and 10 protozoan parasites were recorded. the metazoans included gyrodactylus derjavini, gyrodactylus salaris, eubothrium crassum, triaenophorus nodulosus, proteocephalus sp., dipl ... | 1995 | 7502946 |
| [iso-osmotic regulation in cestodes from freshwater fishes]. | the content of sodium, potassium, calcium, and magnesium ions was determined in cestodes ligula intestinalis, eubothrium rugosum, and triaenophorus nodulosus. in freshwater fishes the total concentration of na, k, ca, mg ions in cestode tissue water is practically similar to that of fishes muscles and in serum. it was suggested that examined cestodes have isoosmotic regulation of the water-salt balance. | 1994 | 7816510 |
| [localization and activity of some hydrolases in larvae of tapeworms neogryporhynchus cheilancristrotus and triaenophorus nodulosus parasitizing fish]. | in the study, an attempt was undertaken to compare the most common species of tapeworms' larvae in fish: n. cheilancristrotus and t. nodulosus on the basis of histoenzymatic examination of 3 enzymes: alkaline phosphatase (ap), acid phosphatase (aph) and nonspecific esterase (en-alpha). the high activity of ap and aph in the cuticle and subcuticular cells, and the lack of en-alpha activity in these structures was stated. besides, an intensive ap and en-alpha activity took place in the n. cheilanc ... | 1996 | 9103052 |
| 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 parasitism of fish from lake constance--a comparison of present and earlier data. | commercial fish (perch, roach, bream, dace, and burbot) were caught below langenargen in 1988-1990. their infestation with cestodes and digenean trematodes was studied. the results were compared with earlier data. the infestation of perch with diplostomum spathaceum and ichthyocotylurus variegatus noted in 1988-1990 had increased as compared with that observed in 1974-1976. the infestation of perch with triaenophorus nodulosus seen in 1990 had increased as opposed to that noted in 1988. the infe ... | 1997 | 9342745 |
| ultrastructural investigation of the secondary excretory system in different stages of the procercoid of triaenophorus nodulosus (cestoda, pseudophyllidea, triaenophoridae). | the formation of the definitive procercoid excretory system of the pseudophyllidean cestode triaenophorus nodulosus has been investigated. this process can be divided into 3 main stages. in the first stage, active autophagic processes lead to the formation of intracellular excretory canals. in the second stage, the process of the autolysis is enhanced and the system of intercellular lacunae functioning as an excretory system is formed. a definitive excretory system of the procercoid forms at the ... | 1998 | 9585939 |
| the influence of food competition and host specificity on the transmission of triaenophorus crassus (cestoda) and cystidicola farionis (nematoda) to coregonus lavaretus and coregonus albula (pisces:coregonidae) in finland. | as a superior competitor for planktonic food, vendace (coregonus albula), when abundant, is expected to displace whitefish (coregonus lavaretus) from feeding on plankton and to force it to rely more on benthic food. the predicted result would be a reduced abundance of the copepod-transmitted cestode triaenophorus crassus in whitefish, but an increase in the abundance of the nematode cystidicola farionis transmitted via benthic amphipods. we studied the occurrence of both parasites in whitefish d ... | 1999 | 10616921 |
| factors affecting abundance of triaenophorus infection in cyclops strenuus, and parasite-induced changes in host fitness. | factors affecting the abundance of triaenophorus crassus and triaenophorus nodulosus procercoids in their copepod first intermediate host, cyclops strenuus, and effects of infection on feeding behaviour, reproduction and survival of the host were studied experimentally. when exposed to the same number of coracidia, copepods harboured considerably less procercoids in the trials where ciliates or artemia salina nauplii were given as alternative food items. the prevalence of infection was higher in ... | 1999 | 10616925 |
| effect of triaenophorus crassus (cestoda) infection on behavior and susceptibility to predation of the first intermediate host cyclops strenuus (copepoda). | some parasites have been shown to manipulate host behavior so that parasite transmission to the next host is enhanced. infection with triaenophorus crassus forel (cestoda) caused alterations in the activity and microhabitat selection of the first intermediate host cyclops strenuus fischer (copepoda) in the laboratory. infected copepods made more starts to swim but spent less time swimming than uninfected copepods. these changes were independent of the intensity of infection. in a water column il ... | 2000 | 10958437 |
| [the parenchymal cellular composition and extracellular matrix in ontogenesis of triaenophorus nodulus (cestoda)]. | the cellular composition of parenchyma was studied in the ontogenesis of triaenophorus nodulosus and it was shown that the specialized parenchymal cells was absent. the extracellular matrix fibrils were synthesized successively by the tegumental cytons and muscle cells. the coracidium basal matrix consisted of electron-light and electron-dense layers, and the reticular layer appeared at the procercoid stage. reserve nutrients were accumulated by the musculocutaneous sac elements at the procercoi ... | 2001 | 11236573 |
| [on a helminthofauna of seabirds of the archangelskaya bay ( northern island of novaya zemlya)]. | in the archangelskaya bay (north island of novaya zemlya), 25 specimens of sea birds have been collected: 5 kittiwakes, 5 murres, 5 little auks, 4 common eiders, 4 purple sandpipers, and 2 glaucous gulls. following numbers of helminth parasite species have been recovered in this material: trematodes--1, cestodes--5, proboscic worms--2, and nematodes--2 species. the description of morphological characters of anomotaenia micracantha micracantha (cestoda: dilepididae) from the kittiwake is given. t ... | 2001 | 11548578 |
| [structure of scolex hooks and genosystematics of triaenophorus nodulosus (cestoda: pseudophyllidea) from the baikal lake]. | data on a hook morphology (in plerocercoid and mature helminths) and gene systematics of triaenophorus nodulosus from the baikal lake are presented for the first time. sequence analysis of rdna fragments (5'-end portion of 18s rdna) yelded 562 nucleotid positions. | 2001 | 11548588 |
| [ultrathin structure of the main lateral nerve cords and accompanying elements of triaenophorus nodulosus (cestoda: pseudophyllidea)]. | the ultrastructure of lateral nerve cords (lnc) of triaenophorus nodulosus has been studied. 4 of the 6 types of neurones earlier reported for cerebral ganglia are present in lnc: multipolars, bipolars, unipolars and "light"; neurosecretory cells of the 7th type lie in transverse commissures. the growth and formation of lnc occur at the expense of undifferentiated cells found on the cord periphery among mature neurones. lnc are surrounded with specialized envelopes made of cell processes of excr ... | 2002 | 12455368 |
| circulation of parasites among fishes from lakes in the caribou mountains, alberta, canada. | circulation of 24 macroparasite species among 12 species of fish was evaluated within samples of hosts collected from 9 lakes on an isolated plateau in northern alberta, canada. twenty-seven parasite taxa (24 species plus the larval stages of triaenophorus crassus, t. stizostedionis, and raphidascaris acus) had the potential to be circulated among hosts. sixteen parasite taxa were recovered from a single host species within a lake. of the 11 remaining nonspecialist taxa, 4 were larval stages tha ... | 2003 | 12760632 |
| [effect of congestion of the culture on the development of eggs of triaenophorus lucii (müll.) (cestoda)]. | | 1956 | 13392824 |
| observations on the occurrence of the plerocercoids of triaenophorus nodulosus (pallas, 1781) (cestoda: pseudophyllidea) in the perch perca fluviatilis l. of llyn tegid (bala lake), merionethshire. | | 1964 | 14204122 |
| [investigations in the occurrence of triaenophorus nodulosus in salvelinus alpinus in the lake of st. bartholomew]. | | 1964 | 14340323 |
| [preliminary studies on the transformations of high energy compounds in the coracidian, triaenophorus nodulosus (pall.) (cestoda) and in the first intermediate hosts (copepoda)]. | | 1964 | 14346843 |
| [hydrolytic activities of microflora enzymes in pike intestines and parasite triaenophorus nodulosus (cestoda, pseudophyllidea). ]. | | 2005 | 15909900 |
| [the role of alpha-amylase of symbiotic microflora in digestion by lower cestodes and their fish hosts]. | the symbiotic microflora associated with the digestive-transport surfaces of the pike intestine and the parasitic cestodes triaenophorus nodulosus proved capable of the initial stages of carbohydrate hydrolysis mediated by alpha-amylase. the products of hydrolysis by alpha-amylase can be used by both the host and the parasite, which decreases energy expenditures of the macroorganisms. the levels of the bacterial alpha-amylase activity are comparable to those of the analogous enzyme absorbed on t ... | 2005 | 16004283 |
| [activity of symbiotic microflora carbohydrases and their functions in digestion in fish and their parasitic cestodes (pike and triaenophorus nodulosus)]. | | 2005 | 16124510 |
| spermiogenesis and sperm ultrastructure of the pseudophyllidean cestode triaenophorus nodulosus (pallas, 1781). | spermiogenesis and ultrastructure of the spermatozoon of the pseudophyllidean cestode triaenophorus nodulosus (pallas, 1781), a parasite of pike esox lucius, has been studied by transmission electron microscopy. spermiogenesis involves firstly the formation of a zone of differentiation with two centrioles associated with striated roots, and an intercentriolar body between them, subsequent growth of the two flagella of unequal length, and a formation of a median cytoplasmic process exhibiting pat ... | 2005 | 16240127 |
| [helminths fauna of fishes in the mała panew river drainage basin]. | a parasitological investigation was made at 420 fishes from 10 species: perca fluviatilis l., gymnocephalus cernuus (l.), gobio gobio (l.), tinca tinca (l.), leuciscus idus (l), noemacheilus barbatulus (l.), lota lota (l.), leucaspisus delineatus (heckell 843), blicca biorkna (l.) and rhodeus sericeus amarus (bloch 1782). the fishes were caught over one year period (1995-1996) in the mała panew river drainage basin (south poland). in examined fishes the following parasite species were found: dip ... | 2000 | 16886354 |
| parasite fauna of selected fish species of lake miedwie. | a total of 136 fishes, representing 9 species (perch, perca fluviatilis l.; pike, esox lucius l.; european eel, anguilla anguilla (l.); common bream, abramis brama (l.); roach, rutilus rutilus (l.); tench tinca tinca (l.); european whitefish, coregonus lavaretus (l.); vendace, coregonus albula (l.); and zander, sander lucioperca (l.)), from lake miedwie were studied within 1997-1999. the necropsies yielded 41 parasite species (taxa). the most diversified were parasite faunas of pike (19 parasite ... | 2002 | 16888943 |
| a comparative study on the parasite fauna of perch, perca fluviatilis l., collected from a freshwater coastal lake, brackish-water baltic sea, and the interconnecting canal. | parasitological surveys of freshwater fishes rarely include comparisons between two ecologically different bodies of water. such studies might help to understand processes of establishment of parasite faunas in estuary areas. the results obtained could also provide useful tools for discriminating various fish populations based on the composition of their parasite faunas. the present authors attempted to study such data from resko lake-a freshwater coastal lagoon (6 km2 surface area), and the adj ... | 2005 | 16913502 |
| [indigenous microflora associated with the tegument of triaenophorus nodulosus (cestoda) and the intestine of its pike host]. | investigations of the indigenous microflora associated with the mucous intestines of fish and its cestode parasites have been for the first time carried out using the methods of transmission and scanning electron microscopy. new data on the bacterial biodiversity in the cestode and its fish host are obtained. nanobacteria and spirochaetes are for the first time revealed in a fish host together with the previously known bacteria forming the intestinal microflora of fish. spirochaetes were shown t ... | 2006 | 17285757 |
| invalidity of three palaearctic species of triaenophorus tapeworms (cestoda: pseudophyllidea): evidence from morphometric analysis of scolex hooks. | a comparative study of the scolex hook morphology of five species of tapeworms of the genus triaenophorus rudolphi, 1793 (cestoda: pseudophyllidea), parasites of pikes (esox lucius l. and e. reichertii dybowski) in the palaearctic region, was carried out. measurements of scolex hooks of 81 plerocercoids and 492 adults from different hosts and regions were compared using basic statistics and forward stepwise linear discriminant analysis. the shape of the scolex and that of tridental hooks were fo ... | 2007 | 17441435 |
| reduction of triaenophorus infestation in whitefish by depletion of the cisco population. | | 1948 | 18865551 |
| between-population similarity in intestinal parasite community structure of pike (esox lucius)--effects of distance and historical connections. | the effect of geographical distance on similarity in parasite communities of freshwater fish has received considerable attention in recent years, and it has become evident that these apparently simple relationships are influenced by, among other things, colonization ability of parasites and degree of connectivity between the populations. in the present paper, we explored qualitative and quantitative similarity in the intestinal parasite communities of pike (esox lucius) in a particular system wh ... | 2009 | 18925789 |
| 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 |
| parasitic fauna of the lake brown trout, salmo trutta lacustris (salmonidae), a little known endemic fish from polish waters. | the lake brown trout is a salmonids fish regarded as a stationary form of the migratory trout. within 2003-2004, 31 lake brown trout (salmo trutta lacustris l.) from lake wdzydze (poland), were examined for the presence of parasites following commonly used procedures. the parasites found represented digenea: diplostomum sp., posthodiplostomum cuticola (nordmann, 1832), sphaerostomum globiporum (rudolphi, 1802); cestoda: eubothrium crassum (bloch, 1779), triaenophorus nodulosus (pallas, 1781); ac ... | 2009 | 20209824 |
| an experiment in the control of the cestode, triaenophorus crassus forel. | | 1946 | 20279657 |
| 'global worming': first record of an epidemic of triaenophorus crassus in a population of arctic charr salvelinus umbla. | in may 2005, an epidemic of the cestode triaenophorus crassus occurred in the salvelinus umbla population of lake grundlsee, an oligotrophic austrian alpine lake. based on catches with a standardized multi-mesh gillnet survey 53% of s. umbla were infected with up to 17 cysts of t. crassus per fish. this is the first documented record of an epidemic of this tapeworm in s. umbla. | 2009 | 20735611 |
| studies on cestodes of the genus triaenophorus from fish of lesser slave lake, alberta; description and life history of triaenophorus stizostedionis n. sp. | | 1945 | 21005537 |
| [an example of anthropogeneous succession in the ecosystem of the verkhnetulomsky water reservoir (the tuloma river basin, the kola region)]. | the destruction of initial biocenoses in the ecosystem of the verkhnetulomsky water reservoir caused deep succession processes. as a result of the loss of the amphipod group in the benthos, replacement of the trophic links in fishes took place in the biocenosis of the reservoir. benthos feeders changed over to the feeding on zooplankton and, as a result, became the constituent of the predators'diet. the structure of parasitic systems has changed. the parasites using amphipods as intermediate hos ... | 2010 | 21061595 |
| differential diagnosis of triaenophorus crassus and t. nodulosus experimental infection in cyclops abyssorum praealpinus (copepoda) from the alpine lake grundlsee (austria) using pcr-rflp. | in 2005, an epidemic of the cestode triaenophorus crassus in arctic charr, salvelinus umbla from lake grundlsee (austria) was reported, resulting in the closure of the local fisheries. the parasite uses a copepod and a salmonid fish as intermediate hosts, and the european pike (esox lucius) as definitive host. in lake grundlsee procercoids of t. crassus, t. nodulosus and eubothrium salvelini use the copepod cyclops abyssorum praealpinus as their first intermediate host. we report on the developm ... | 2011 | 21424806 |