CONTRACAECUM SP PDF


10 out. PDF | This work describes the presence of Contracaecum sp. larvae (Nematoda: Anisakidae) found in food fish of economic importance. Contracaecum genus (Ascaridida: Anisakidae) is a nematode parasite of the fish- eating birds throughout the world. A heavy infection of Contracaecum sp. was. Birds are frequently mentioned as hosts of Contracaecum sp. One cormorant species, Phalacrocorax brasilianus (syn olivaceus) Gmelin, (TORRES, ;.

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Their development and transmission.

Contracaecum pelagicum and C. Penguins as marine sentinels. Cabi Publishing, New York. Mortality in little penguins Eudyptula minor along the coast of Victoria, Australia.

The body showed a thick cuticle bearing transverse striations Fig. Spheniscidae has a pelagic and predatory habit, migrating from its reproductive contracaefum, through ocean currents, to the Brazilian continental shore to eat. The presence of parasites only in the esophagus was observed in only one animal 9. However, these findings are unspecific and thus impossible to be related to gastrointestinal clntracaecum.

Determination of the number of parasites has not been carried out.

Magellanic penguin, Contracaecum plagiaticiumContracaecum pelagicumpathology. However, the intensity of parasitic infection was macroscopically rated as low. Several factors play a role in the weakening and high mortality rates of Magellanic penguins contracacum the northward migration. From July to Septembereleven young specimens of Magellanic penguins were investigated, regardless of sex, for helminthes in the digestive tract.

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Gastric ulcers associated with Contracaecum spp. Anisakidae infection in Magellanic penguins Sphenisciformes: Contracaecum pelagicum was described infecting penguins from the species S.

Spheniscidae on the coast of Rio de Janeiro State. Received on December 2, Five-micrometer sections were stained with hematoxylin and eosin HE.

Histopathological findings demonstrated esophagitis with helminthes segments inserted in the epithelium, showing discrete mixed inflammatory infiltrate of heterophils and mononuclear cells. One of these animals 9. In the cases of parasitism by C.

However, these birds become debilitated and malnourished, and often have infectious or non-infectious contfacaecum, which interfere in the rehabilitation process Serafini et al.

How to cite this article. The digestive tract was opened and placed in Petri dishes containing a 0. In male worms, the elongated spicules were equal and the conical tail curved ventrally Fig. All the contents of this journal, except where otherwise noted, is licensed under a Creative Commons Attribution License. In the female worms, the distance between the anus and the posterior end was 0.

In Brazil, recent reports of parasitism by C.

Contracaecum sp | Parasites World

Among the three animals infected by C. Ascaroidea in a steller sea lion and a white pelican. One bird was parasitized by C. Nematode parasites of vertebrates: In that case, the parasite observed was Contracaecum spiculigerum. For a correct classification of the species, at least ten male and ten contracaecmu parasites were observed and measured.

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Gross lesions in animals infected by Contracaecum spp.

Iowa State University Press, Ames. Penguins are considered sentinels of the oceans, thus studies of these birds provide knowledge of the source and intensity of human impacts over marine habitats in the southern hemisphere Boersma Resurrection and pathogenic effects of a common parasite from the proventriculus of Anous minutus from the Great Barrier Reef, with a note on C.

The anterior end of adult worms consisted of three round lips Fig. For Contracaecum pelagicumin the present study, the mean body length was Although the penguins of this study did not have ulcers, a hemorrhagic area was observed in the stomach of one animal. Further study of Contracaecum pelagicum Nematoda: The ulcers were dark gray with their surfaces coated with mucus and their bases with a layer of necrotic tissue in which the heads of the parasites were buried.

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InTimi et al. The average size of the lips was 0. On histopathological examination, hyperemia of lungs, contradaecum and spleen were found in all birds.

In female, the uterus was sinuous with subglobular thick-shelled eggs. Other macroscopic lesions found were pulmonary congestion, hepato- and splenomegaly.