Mode of attachment and pathology caused by Parorchites Zederi in three species of penguins: Pygoscelis Papua, Pygoscelis Adeliae, and Pygoscelis Antarctica in Antarctica
- Martín, María A.
- Ortiz, Juana M.
- Seva, Juan
- Vidal, Virginia
- Valera, Francisco
- Benzal, Jesús
- Cuervo, José J.
- de la Cruz, Carlos
- Belliure, Josabel
- Martínez, Ana M.
- Diaz, Julia Inés
- Motas, Miguel
- Jerez, Silvia
- D'amico, Veronica Laura
- Barbosa, Osvaldo Andres
DOIAbstract
We identified and compared gross and microscopic lesions associated with the cestode, Parorchites zederi, in the digestive tracts of three species of penguins (Spheniscidae): the Chinstrap (Pygoscelis antarctica), Gentoo (Pygoscelis papua), and Adélie penguins (Pygoscelis adeliae). The gastrointestinal tracts of 79 recently dead individuals (71 chicks and eight adults) were collected in locations throughout the Antarctic Peninsula during summer field trips in 2006–09. Parorchites zederi was found in the small intestine of 37 animals (47%), and 23 (62%) of these had parasite-associated lesions. The cestodes were either free in the intestinal lumen, clustered within mucosal ulcers, or deeply embedded in the intestinal wall. Histopathologic ch...
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