| [fatty acid makeup of the cestodes, eubothrium crassum and diphyllobothrium dendriticum]. | the fat-acidic composition of e. crassum and d. dendriticum was investigated. lipids of e. crassum differ in greater unsaturation as compared to these of d. dendriticum as well as in greater amount of acids of type omega 3, whereas acids of type omega 6 and stearic acid were found in extracts of e. crassum in less quantity than in d. dendriticum. this phenomenon is characteristic of organisms living under conditions of low temperatures. | 1979 | 492772 |
| skin the tapeworms before you stain their nervous system! a new method for whole-mount immunocytochemistry. | a new method for making whole-mount immunocytochemical preparations of thick-skinned tapeworms is described. the tough tegument of the worms, which is impermeable to primary and secondary antisera, is removed by placing live worms in distilled water for 5-8 h, during which period the tegument is shed. the worms are thereafter fixed and stained as whole specimens using fluorescence immunocytochemical techniques. both the main nervous structures and the finest neuronal details are revealed by this ... | 1991 | 1924258 |
| occurrence of eubothrium crassum (bloch, 1779) (cestoda: pseudophyllidea in brown trout salmotrutta l., and rainbow trout s. gairdneri richardson, 1836, from hanningfield reservoir, essex. | | 1972 | 4641402 |
| [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 |
| [the effect of host temperature on the fatty acid composition of the total and membrane lipids in the cestodes eubothrium crassum and diphyllobothrium dendriticum]. | a comparative qualitative and quantitative analysis of the fatty acid composition of total and lysosome membrane lipids of two cestode species eubothrium crassum (from cold-blooded host) and diphyllobothrium dendriticum (from warm-blooded host) has been carried out. it is shown that quantitative ratio of the fatty acids in the total and membranous lipids of the helminth of cold-blooded host was very similar whereas for the helminth of warm-blooded host fatty acid composition of membranous lipids ... | 1995 | 7483920 |
| 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 |
| [the development of the cestode fauna in rainbow trout (oncorhynchus mykiss) in a newly formed surface mine residual water]. | helminthofaunistical studies on rainbow trout, wild fish and zooplankton organisms of a recently emerged rest waters from an open-cast mine have been made continuously in the period from 1980 till 1990. three years after the beginning of the trout production larval triaenophorosis appeared as the first cestodosis. in the subsequent time changes of the cestode fauna of rainbow trout kept in net-cages could already be observed within a few years. possible causes for the replacement of eubothrium c ... | 1993 | 8508218 |
| establishment, survival and site selection of the cestode eubothrium crassum in brown trout, salmo trutta. | population dynamics, site selection, growth and maturation of the cestode eubothrium crassum in a natural population of salmo trutta in a small lake were studied over a period of 1 year, the life-span of a cohort in fish. infection of fish commenced in spring but peaked in july. small, plerocerciform parasites initially located in the intestine, but then some moved into the pyloric caecae whilst others, the majority in heavy infections, were lost from the fish causing a fall in abundance from 46 ... | 1996 | 8728999 |
| the ecology of endoparasitic helminth infections of brown trout (salmo trutta) and rainbow trout (oncorhynchus mykiss) in scotland. | two hundred and forty brown trout (salmo trutta) and 49 rainbow trout (oncorhynchus mykiss), obtained from 21 locations in central scotland between october 1990 and august 1993, were examined for endoparasitic helminth infections. crepidostomum farionis (digenea) was the most widely distributed helminth species, followed by eubothrium crassum (cestoda), diphyllobothrium dendriticum and d. ditremum (cestoda), neoechinorhynchus rutili (acanthocephala), echinorhynchus truttae (acanthocephala), eust ... | 1995 | 9599425 |
| helminths in an intensively stocked population of lake trout, salvelinus namaycush, from lake huron. | eighty stocked lake trout salvelinus namaycush (salmonidae), collected from 2 locations in lake huron in may 1995, were examined for parasites. the parasite fauna of this top predator in lake huron was characterized by only 6 helminth species. echinorhynchus salmonis infected all lake trout with a mean intensity of 163.9. the intensity of this acanthocephalan species significantly increased with host length and weight. eubothrium salvelini infected 78 lake trout with a maximum number of 81 scole ... | 2000 | 10864274 |
| a comparison of the internal transcribed spacer of the ribosomal dna for eubothrium crassum and eubothrium salvelini (cestoda: pseudophyllidea), parasites of salmonid fish. | the internal transcribed spacers (its-1 and its-2) and 5.8s subunit of the ribosomal rna gene of eubothrium crassum and eubothrium salvelini, cestode parasites of salmonid fish, were sequenced and compared. the lengths and gc contents of the regions sequenced were 1119 bp and 50.1% for e. crassum, and 1117 bp and 50.5% for e. salvelini, respectively. sequence alignment and comparison of both taxa showed 97.9% similarity. within the its-1 and its-2 of both species, the restriction enzymes mspi an ... | 2001 | 11165277 |
| spermiogenesis in the pseudophyllid cestode eubothrium crassum (bloch, 1779). | spermiogenesis of the pseudophyllidean tapeworm eubothrium crassum has been described by the aid of transmission electron microscopy for the first time. initially, early spermatids form a distal cytoplasmic protrusion, a differentiation zone containing a small electron-dense, apically oriented region. out of this region, two centrioles with rootlets develop. the centrioles become orientated in the same plane with the appearance of an intercentriolar body. now, the long axes of the rootlets are p ... | 2001 | 11510990 |
| ultrastructure of the spermatozoon of the pseudophyllidean cestode eubothrium crassum (bloch, 1779). | the fine structure of the mature spermatozoon of the pseudophyllidean tapeworm eubothrium crassum, a parasite of salmonid fishes, has been studied by transmission electron microscopy for the first time. the mature spermatozoon of e. crassum is filiform and tapered at both extremities. it contains two axonemes of unequal length showing the 9 + "1" pattern of trepaxonemata. the anterior extremity exhibits a crested body 50-100 nm thick. it spirals around the outside of the anterior region of the s ... | 2002 | 11999013 |
| comparison of the macroparasite communities of wild and stocked brown trout (salmo trutta l.) in the west of ireland. | the aim of the present study was to compare the helminth infra and component communities of wild and stocked brown trout in lough feeagh, in the west of ireland, and also to examine the establishment and development of helminth communities in stocked brown trout. fish were sampled in may, august and november 1997 and 1998 and an additional sample of wild brown trout was examined in april 1997. in total 217 wild trout and 122 stocked trout were examined. the acanthocephalans acanthocephalus clavu ... | 2002 | 12003067 |
| a molecular study of eubothrium rugosum (batsch, 1786) (cestoda: pseudophyllidea) using its rdna sequences, with notes on the distribution and intraspecific sequence variation of eubothrium crassum (bloch, 1779). | the internal transcribed spacers (its-1 and its-2) of the ribosomal dna (rdna) of fish cestodes of the genus eubothrium were sequenced. the its sequences of eubothrium rugosum were determined and compared with previously analysed congeneric species, eubothrium crassum and eubothrium salvelini. the its-1 sequences of e. rugosum and e. crassum were 535 bp long, the length of e. salvelini its-1 was 536 bp. the its-2 region was found to be 403 bp in e. rugosum and e. crassum, and 401-402 bp in e. sa ... | 2003 | 12658459 |
| host specificity and geographical distribution of eubothrium in european salmonid fish. | the host specificity and distribution of eubothrium crassum (bloch, 1779) and eubothrium salvelini (schrank, 1790), morphologically fairly similar pseudophyllidean tapeworms parasitizing salmonid fish, were critically assessed on the basis of morphological and genetic evaluation of extensive material collected from different definitive hosts and geographical regions in europe. eubothrium crassum occurs in fish of the genera salmo, i.e. salmon (s. salar - both freshwater and marine), sea trout (s ... | 2003 | 12895285 |
| maturation divisions of the ova in the pseudophyllidean cestode, eubothrium crassum (bloch). | | 1955 | 13244647 |
| the anatomy of eubothrium crassum (bloch) from the pyloric caeca and small intestine of salmo trutta l. | | 1957 | 13475753 |
| observations on the metazoan parasites of the atlantic salmon (salmo salar) after its reintroduction into the elbe river basin in the czech republic. | in the years 1999-2002, first studies were carried out on the metazoan parasites of atlantic salmon (salmo salar l.) recently reintroduced into the elbe river drainage system, after more than 50 years after the complete extinction of the elbe salmon population. a total of six helminth species were recorded from salmon smolts from three streams of the elbe river basin (kamenice river, jestedský and libocanský brooks) in north bohemia, czech republic, where s. salar fingerlings have been released ... | 2003 | 14971599 |
| allozyme analysis of genetic variation and polymorphism in eubothrium salvelini and e. crassum (cestoda: pseudophyllidea) from alpine lakes. | the genetic structure of the most abundant species in the genus eubothrium, e. crassum and e. salvelini, was studied by allozyme analysis in order to provide a consistent diagnosis for these morphologically similar species, as well as to assess their genetic relatedness. the proportion of fixed allelic differences (56.3%, 9 of 16 loci) between the species falls within the range accepted for valid species. a strict host specificity of e. crassum and e. salvelini for their typical host (lake trout ... | 2004 | 15175878 |
| changes in the neuromodulators of the diffuse endocrine system of the alimentary canal of farmed rainbow trout, oncorhynchus mykiss (walbaum), naturally infected with eubothrium crassum (cestoda). | a histopathological and immunohistochemical study on the intestines of 45 specimens of farmed rainbow trout, oncorhynchus mykiss (walbaum), from loch awe, scotland, revealed a number of cellular deviations in individuals naturally infected with the pseudophyllidean cestode eubothrium crassum (bloch, 1779). twenty-five individuals (55.5%) were infected with an average worm burden of 18.84 +/- 4.06 (mean +/- se) cestodes per host (range, 2-80 worms; total 471 worms). the cestodes, measuring an ave ... | 2005 | 16336471 |
| biomagnification and polychlorinated biphenyl congener distribution in an aquatic predator-prey, host-parasite system. | biomagnification and polychlorinated biphenyl (pcb) congener distribution was examined in a predator-prey, host-parasite system, in which atlantic salmon (salmo salar) preyed upon sprat (sprattus sprattus). eubothrium crassum was an intestinal parasite in salmon that also "preyed upon" sprat, because the parasites gained access to foodstuffs via the host (salmon) gut. salmon contained significantly higher concentrations of total pcbs compared to both parasites and prey (sprat), but no difference ... | 2007 | 17521127 |
| 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 |
| redescription of eubothrium fragile (rudolphi, 1802) and e. rugosum (batsch, 1786) (cestoda: pseudophyllidea), parasites of fish in the holarctic region. | two fish cestodes, the little-known eubothrium fragile (rudolphi, 1802) and e. rugosum (batsch, 1786), the type species of the genus eubothrium nybelin, 1922, are redescribed on the basis of new material from twaite shad, alosa fallax (lacépède, 1803), from england and burbot, lota lota (linnaeus, 1758), from russia, respectively. the tapeworms are compared with two other species of the genus, e. crassum (bloch, 1779) and e. salvelini (schrank, 1790), common parasites of salmonid fish in the hol ... | 2005 | 16270806 |
| [electron microscope investigation of bacteria associated with the tegument of the tapeworm species eubothrium rugosum, a parasite of the intestine of burbot]. | bacteria associated with the tegument of the tapeworm species eubothrium rugosum (cestoda, pseudophyllidea) parasitizing the intestine of burbot (lota lota) were studied using transmission and scanning electron microscopy. three morphological types of the bacteria were revealed. bacteria of the first type are localized between microtrichia and fit to them closely. bacteria of the second (gram-positive) and third (gram-negative) types are localized over microtrichia of the tegument and do not att ... | 2005 | 16134784 |
| morphometric analysis of four species of eubothrium (cestoda: pseudophyllidea) parasites of salmonid fish: an interspecific and intraspecific comparison. | four species of the genus eubothrium (e. crassum, e. fragile, e. rugosum and e. salvelini) were subjected to morphometric comparison. discriminant analysis was conducted utilising 17 characters measured on the scolex and strobila of 101 specimens. univariate statistics were first used to detect features that were useful for separating individual eubothrium species and two different host populations of e. salvelini. subsequent multivariate discriminant analysis, combining all the measured variabl ... | 2005 | 15979933 |
| [final stages of carbohydrate metabolism in a cestode eubothrium rugosum (cestoda: pseudophyllidea)]. | characteristics of final stages of carbohydrate metabolism in a cestode eubothrium rugosum from the burbot intestine have been studied. it is found out that in the course of in vitro incubation the worms produce lactic acid to the environment with a concomitant acidification of the medium. the rate of ph changes and lactate production eventually fell during the incubation. the medium ph being the result of helminth's metabolism varies within the normal physiological limits of the host intestine ... | 2003 | 14964850 |
| [proteolytic activity of microflora associated with digestive intestinal surface transportation of burbot lota lota parasitized by eubothrium rugosum]. | | 2003 | 14689729 |
| [morphology of genital system of amphicotyle cestoda eubothrium rugosum (cestoda, pseudophyllidae) dependent on habitat]. | | 2003 | 12973911 |
| comparative karyological studies on the species of eubothrium nybelin, 1922 (cestoda: pseudophyllidea). | karyotypes of eubothrium salvelini, e. crassum and eubothrium sp. were studied using conventional giemsa staining and comparative karyometric analysis. the karyotypes, reported here for the first time, consist of eight chromosome pairs. the two first pairs of homologues are metacentric and markedly larger than the remaining elements. the obvious similarity in karyotype structure does not exclude the possibility of discriminating e. salvelini and e. crassum using karyotypic characters. the best c ... | 2001 | 11586081 |
| [parasites-invaders of the volga river basin: history of invasion, perspective of dispersion, possibility of epizootic]. | the fauna of fish parasites in the volga river increased by 15 species in last time. these parasites have invaded together with introduced hosts or dispersed after destruction of some physical and ecological barriers. the infusoria ambiphrya ameuri, cestode cestobothrium acheilognathi, trematodes amurotrema dombrovskajae and sanguinicola skrabini have been introduced together with their hosts. a creation of water reservoirs destroyed ecological barriers and created favorable conditions for the m ... | 2001 | 11558337 |
| experimental infection of atlantic salmon (salmo salar) with marine eubothrium sp. (cestoda: pseudophyllidea): observations on the life cycle, aspects of development and growth of the parasite. | the life cycle of marine eubothrium sp. (cestoda: pseudophyllidea), from atlantic salmon (salmo salar l.) was experimentally completed in one year and included only one intermediate host (acartia tonsa dana) (copepoda: calanoida). adult cestodes were collected from farmed salmon, and ripe eggs released by the cestodes were fed to acartia tonsa. ingested eggs hatched in the gut and the larvae developed in the haemocoel of the copepod for 15 days at 16 degrees c. a total of 170 seawater-reared sal ... | 2001 | 11437125 |
| on the phylogenetic positions of the caryophyllidea, pseudophyllidea and proteocephalidea (eucestoda) inferred from 18s rrna. | a phylogenetic analysis of tapeworms (eucestoda) based on complete sequences of the 18s rrna genes of 43 taxa (including new sequences of 12 species) was carried out, with the emphasis on the groups parasitising teleost fish and reptiles. spathebothriidea and trypanorhyncha (the latter group being paraphyletic) appeared as basal groups of the eucestoda but their position was not stable. the tetrafossate orders (litobothriidea, lecanicephalidea, tetraphyllidea, proteocephalidea, nippotaeniidea, t ... | 2000 | 10996329 |
| life cycles of species of proteocephalus, parasites of fishes in the palearctic region: a review. | the life cycles of species of proteocephalus weinland, 1858 (cestoda: proteocephalidea) parasitizing fishes in the palearctic region are reviewed on the basis of literary data and personal experimental observations, with special attention being paid to the development within the intermediate and definitive hosts. planktonic crustaceans, diaptomid or cyclopid copepods (copepoda), serve as the only intermediate hosts of all proteocephalus species considered. a metacestode, or procercoid, develops ... | 1999 | 10431368 |
| seasonal patterns in the biology of eubothrium salvelini infecting brook trout in a creek in lower michigan. | a total of 392 brook trout, salvelinus fontinalis, and 211 slimy sculpin, cottus cognatus, was examined for eubothrium salvelini (cestoda) from may 1995 through september 1996 from sweetwater creek, michigan. no seasonal pattern in prevalence, intensity, and abundance of parasites in trout and sculpin was determined. however a seasonal pattern in the length and percent gravid e. salvelini in brook trout suggests that recruitment of this parasite occurs during late summer and early fall. during t ... | 1998 | 9920300 |
| parasites of the deepwater sculpin, myoxocephalus thompsoni (cottidae), from lake michigan and lake huron. | a total of 190 deepwater sculpins, myoxocephalus thompsoni, collected in 1995 from michigan waters of lake michigan and lake huron was examined for parasites. five parasite species occurred in sculpins from lake michigan with echinorhynchus salmonis being most common. six parasite species infected sculpins from lake huron, with haplonema sp. the most common. haplonema sp. is the only gravid helminth species reported from deepwater sculpins. pleistophora sp. and trichodina sp. infected sculpins f ... | 1997 | 9057717 |
| [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 |
| the karyotype of eubothrium rugosum (cestoda: pseudophyllidea). | the diploid chromosome set of eubothrium rugosum contains 16 elements. the karyotype consists of three pairs of metacentric, three pairs of acrocentric and two pairs of submeta-metacentric chromosomes. their mean absolute length ranges from 2.20 to 8.80 microns. the first two pairs of large metacentric chromosomes comprise over 45% of the total complement length. | 1991 | 2040562 |
| [the characteristics of protein hydrolysis on the digestive-transport surfaces of the cestode eubothrium rugosum and of the intestines of its host--the burbot]. | the functioning of different proteinases hydrolysing proteins in a wide ph range, most of which display activity in the alkaline zone of ph, on the digestive-absorptive surfaces of the parasite and host has been investigated. the dynamics of desorption of these proteinases from the intestine of fishes and tegument of cestodes has been studied. it has been shown that the worms possess less proteolytic activity and less capacity for adsorption of proteinases as compared to the intestines of their ... | 1991 | 1813843 |
| [anatomy of the neural apparatus of cestodes of the families amphicotylidae and diphyllobothriidae (pseudophyllidea)]. | studies were carried out of the nervous apparatus of eubothrium salvelini, e. rugosum, e. crassum, e. vittevitellatus, diphyllobothrium latum and d. dendriticum (cestoda, pseudophyllidea) at different stages of their life cycle. scolexes of adult cestodes are innervated with 5 pairs of longitudinal nerve trunks, the number of which in the strobile gradually increases up to 17 pairs in species of eubothrium and up to 60 pairs (in the wildest parts of the strobile) in species of diphyllobothrium. ... | 1978 | 673446 |
| 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 |
| functional ultrastructure of the hexacanth larvae in the bothriocephalidean cestode eubothrium salvelini (schrank, 1790) and its phylogenetic implications. | functional ultrastructure and its phylogenic implications in the bothriocephalid cestode eubothrium salvelini (schrank, 1790) are described and discussed. the infective hexacanth shows bilateral symmetry in cellular organization. the mature hexacanth is armed with three pairs of oncospheral hooks of a heterogeneous electron density. it is covered by a thin layer of the oncospheral tegument, possessing characteristic bubble-like processes at the surface. within the infective hexacanth larva five ... | 2010 | 20637299 |
| [trophic relationship in the system host (lota lota) - parasite (eubothrium rugosum): symbiont microflora in hydrolysis of food carbohydrate components]. | | 2006 | 17087012 |
| australicola pectinatus n. gen. and n. sp. (cestoda: pseudophyllidea) from the deep-sea fish beryx splendens from tasmania. | australicola pectinatus n. gen., n. sp. (pseudophyllidea: triaenophoridae) is proposed to accommodate a new cestode from a deep-sea fish, the splendid alfonsino, beryx splendens lowe, 1834 (beryciformes: berycidae), from the pacific coast of tasmania. the new genus is placed in the triaenophoridae, because it possesses a ventral uterine pore, marginal genital pore, and follicular vitellarium. australicola is characterized by possessing a massive strobila with very short and wide, markedly craspe ... | 2006 | 16629325 |
| [a preliminary study of parasite diversity in the anadromous kamchatkan mikizha parasalmo mykiss mykiss (osteichthyes: salmoniformes: salmonidae)]. | the study of parasites associated with the anadromous mikizha from several rivers of the western kamchatka has revealed 44 parasite species. the majority of parasites (59%) belong to marine and estuarine-marine species. lecithophyllum bothryophorum, echinorhynchus leidyi and plerocercoids of the family litobothriidae were found for the first time in anadromous fish entering into asian continental watersheds. it has been revealed that only a few specimens of the anadromous mikizha feed in fresh w ... | 2005 | 15810557 |