نتایج جستجو برای: acanthocephala
تعداد نتایج: 497 فیلتر نتایج به سال:
Eight species of gastrointestinal helminths were obtained from the red-billed gull (Larus novaehollandiae scopulinus Forster, 1844) from Otago Peninsula, of which six were new host records. One of these, Maritrema novaezelandensis (Trematoda), was a species new to science which is being described elsewhere; the other five were Curtuteria australis (Trematoda), Echinoparyphium recurvatum (Tremat...
background: the genus pallisentis is an endoparasitic acanthocephalan inhabiting the intestinal walls. hooks and spines of the worm are significant taxonomical and adaptive tools. methods: the parasites were fixed, dehydrated and examined under olympus bx 53 microscope with dic attachment, digital camera and cellsens imaging system [light microscopy (lm)] and fixed in 2% glutaraldehyde in 0.1...
Total, 94 specimens of gudgeon (Gobio ohridanus Karaman, 1924) from the Macedonian part of the Lake Ohrid were examined and 61 fishes (64.89%) were infected with parasites. The presence of 4 parasite species was established: Dactylogyrus cryptomeres f. typica (Monogenea), Cystidicoloides tenuissima and Philometra ovata (Nematoda), and Pomphorhynchus laevis (Acanthocephala). The highest prevalen...
A survey of 17 fishes belonging to 11 species from Grand Cayman, Cayman Islands, West Indies, led to the recovery of 2 species of acanthocephalans and 9 of digeneans. The acanthocephalans found were Acanthogyrus (Acanthosentis) acanthuri and Dollfusentis ctenorhynchus. The digeneans included Monorchimacradena acanthuri in Acanthurus bahianus (new host record), Bucephalus varicus, Hurleytrematoi...
Phylogeny of seven groups of metazoan parasitic groups is reviewed, based on both morphological and molecular data. The Myxozoa (=Malacosporea + Myxosporea) are most probably related to the egg-parasitic cnidarian Polypodium (Hydrozoa?: Polypodiozoa); the other phylogenetic hypotheses are discussed and the possible non-monophyly of the Cnidaria (with the Polypodiozoa-Myxozoa clade closest to th...
Exotic reptiles originating from the wild can be carriers of many different pathogens and some of them can infect humans. Reptiles imported into Slovenia from 2000 to 2005, specimens of native species taken from the wild and captive bred species were investigated. A total of 949 reptiles (55 snakes, 331 lizards and 563 turtles), belonging to 68 different species, were examined for the presence ...
Parasite findings in sambaquis (shell mounds) are scarce. Although the 121 shell mound samples were previously analysed in our laboratory, we only recently obtained the first positive results. In the sambaqui of Guapi, Rio de Janeiro, Brazil, paleoparasitological analysis was performed on sediment samples collected from various archaeological layers, including the superficial layer as a control...
The physiological mechanisms by which parasites with complex life cycles manipulate the behaviour of their intermediate hosts are still poorly understood. In Burgundy, eastern France, the acanthocephalan parasite Pomphorhynchus laevis inverses reaction to light in its amphipod host Gammarus pulex, but not in Gammarus roeseli, a recent invasive species. Here, we show that this difference in mani...
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