the helminth fauna of the common seal (phoca vitulina vitulina, linné, 1758) from the wadden sea in lower saxony. part 1: trematodes, cestodes and acanthocephala.between august 1988 and january 1989 110 common seals found dead along the coast of lower saxony were investigated for the occurrence of trematodes, cestodes and acanthocephala. two fluke species, cryptocotyle lingua creplin, 1825 and phagicola septentrionalis van den broek, 1967, two tapeworm species diphyllobothrium cordatum leuckart, 1863 and diphyllobothrium elegans krabbe, 1865, and the acanthocephala species corynosoma strumosum rudolphi, 1802 were found. phagicola septentrionalis and the ...19911789021
corynosoma strumosum (rud.) and c. semerne (forssell) (acanthocephala) as pathogenic parasites of farmed minks in finland. 19666006987
intestinal helminths of river otters (lutra canadensis) from the pacific northwest.the intestinal helminth fauna of river otters, lutra canadensis, from the pacific northwest was characterized by low species richness and intensity of infection. river otters from the lower columbia river (n = 23) were infected with 9 species of helminths (83% prevalence); those from a relatively undisturbed reference area near the headwaters of the trask and wilson rivers on the oregon coast (n = 6) were infected by 5 species of helminths (100% prevalence). single species of eucestoda (schistoc ...19979057704
acanthocephala of the bald eagle (haliaeetus leucocephalus) in north america.examination of bald eagles (haliaeetus leucocephalus) collected from several locations in north america contributed new information concerning the acanthocephalan fauna of this host. representatives of arythmorhynchus brevis, representing a new host record, were collected from eagles in florida, new hampshire, and wisconsin. plagiorhynchus sp. was collected from an eagle in florida. corynosoma strumosum was collected from an eagle in alaska. andracantha phalacrocoracis, representing a new host r ...19979194845
parasites and related pathological lesions in the gastrointestinal tract of a seal (phoka vitulina linnaeus).an immature seal, about one-year-old, died a natural death. at autopsy, a large number of contracaecum osculatum and pseudoterranova decipiens, as well as some of anisakis simplex were found in the stomach together with numerous corynosoma strumosum in the small intestine and colon. histopathological examination revealed epithelial desquamation, congestion and hemorrhage in the mucosa. there were cellular infiltration and fibroplasia around the nematodes, collapsed nematodes and molted nematode ...19989795905
natural transfer of helminths of marine origin to freshwater fishes with observations on the development of diphyllobothrium alascense.infective stages of helminths of 5 species that occur as adults in marine mammals were found in burbot, lota lota (l.) (gadidae), from the lower kuskokwim river (southwestern alaska): diphyllobothrium alascense rausch et williamson, 1958; pyramicocephalus phocarum (fabricius, 1780); corynosoma strumosum (rudolphi, 1801); corynosoma semerme (forsell, 1904); and pseudoterranova decipiens (krabbe, 1878). some larval stages were obtained also from smelt, osmerus mordax dentex steindachner, an anadro ...200010780552
the occurrence of corynosoma strumosum in the grey seal, halichoerus grypus, caught off the atlantic coast of ireland.the occurrence, location and sex ratio of corynosoma strumosum (acanthoceophala: polymorphidae) from 26 juvenile grey seals, halichoerus grypus, by-caught from around the inishkea islands, co. mayo, from march to june 1997 were recorded. the location of c. strumosum within the seal did not vary, with all worms being found in the small intestine. the prevalence of infection was 100%, with no other acanthocephalan species being recorded. the mean abundance was 416 (range 80-846) c. strumosum per s ...200212363376
structure of capsule surrounding acanthocephalans corynosoma strumosum in paratenic hosts of three species.morphology of capsules surrounding acanthocephalan corynosoma strumosum in paratenic hosts (sea fishes of three species from the northern part of the sea of okhotsk) was studied. a thick layer of glycocalyx is formed on the surface of acanthocephalan's tegument in smelts osmerus mordax dentex and hypomesus olidus; the surrounding capsule is formed by fibroblasts and collagen fibers and do not include inflammatory cells. besides fibroblasts, capsule of the sole limanda aspera consists also of mac ...201020922420
structure of capsule around acanthocephalan corynosoma strumosum from uncommon paratenic hosts-lizards of two species.micromorphology and ultrastructure of capsule forming around acanthocephalan corynosoma strumosum in uncommon paratenic hosts-lizards lacerta agilis and lacerta viridis-have been studied. experimental infestation of the lizards by acanthocephalans obtained from naturally infested sea fishes showed that only small amount of parasites occurred in the intestine of the host was able to migrate into body cavity and to be encapsulated. micromorphology of capsules of different ages from different speci ...201121748352
parasite fauna of the eel, anguilla anguilla (linnaeus, 1758), from the polish part of the vistula lagoon.eel is one of the most valuable commercial fish species of the vistula lagoon. for this reason its infection by non-indigenous species of parasites is the subject of the interest of sciencists.200617120993
corynosoma magdaleni in gray seals from the gulf of bothnia, with emended descriptions of corynosoma strumosum and corynosoma magdaleni.because of the likelihood that corynosoma magdaleni montreuil, 1958. has been confused with c. strumosum (rudolphi, 1802) in reports of parasites from seals and to clarify its distribution in the baltic sea, acanthocephalans from 26 young gray seals from the southwestern finnish archipelago (western baltic sea) were examined. all harbored c. semerme (forssell. 1904). in addition to c. semerme, 12 had both c. strumosum and c. magdaleni, 3 had only c. strumosum, and 9 had only c. magdaleni. most a ...200212537117
acanthocephalans in northern fur seals (callorhinus ursinus) and a harbor seal (phoca vitulina) on st. paul island, alaska: species, prevalence, and biodiversity in four fur seal subpopulations.monitoring studies of acanthocephalans in northern fur seals (callorhinus ursinus linnaeus, 1758) (nfss) and a harbor seal (phoca vitulina linnaeus, 1758) were performed on st. paul island, alaska, in july-august 2011. gastrointestinal tracts of 105 humanely harvested nfs subadult males (sams) (3-4 years old) were collected during the annual aleut subsistence harvest at four haul-out areas (hoas): lukanin (n = 26 nfss), polovina (n = 28), gorbatch (n = 30), and morzhovyi (n = 21). one gastrointe ...201222584377
[dependence of the structure of the capsule surrounding the acanthocephalan corynosoma strumosum on the species of its natural paratenic host].the fine and ultrafine structure of the capsules surrounding the acanthocephalan corynosoma strumosum in natural paratenic hosts of three species--the whitespotted greenling hexagrammos stelleri, steller's sculpin myoxocephalus stelleri, and the saffron cod eleginus gracilis--was studied. the results of this study, together with earlier data, support the hypothesis that the structure of the capsule depends on the paratenic host species. three types of capsules differing in the ratio of fibroblas ...201625518556
hematological parameters associated with parasitism in pike, esox lucius caught from anzali wetland.this study involved 120 pike, esox lucius, captured from anzali wetland. parasite fauna were identified in captured fish. also, changes of haematological parameters were compared both infected and uninfected fish. parasitological inspections revealed the following infestations: skin: lernea cyprinacea, argulus foliaceus (crustacean) and tricodina sp. (ciliatea). gill: dactylogyrus sp. (digenea) and tetraonchus monenteron (monogenea). eye: diplostomum spathaceum (digenea). gut: eustrongylides exi ...201526064009
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