Mode of attachment and pathology caused by Parorchites zederi in three species of penguins: Pygoscelis papua, Pygoscelis adeliae, and Pygoscelis antarctica in Antarctica
| Autor: | José Javier Cuervo, María A. Martín, Andrés Barbosa, Juana Ortiz, Julia Inés Diaz, Josabel Belliure, Carlos de la Cruz, Miguel Motas, Silvia Jerez, Ana María Soriano Martínez, Francisco Valera, Jesús Benzal, Virginia Vidal, Verónica L. D’Amico, J. Seva |
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| Rok vydání: | 2016 |
| Předmět: |
0106 biological sciences
Pathology medicine.medical_specialty Spheniscidae Otras Ciencias Biológicas Cestoda PARORCHITE ZEDERI Antarctic Regions Histopathology CESTODA Environment 010603 evolutionary biology 01 natural sciences Enteritis Ciencias Biológicas medicine Animals Helminths Parasite effects PARASITE EFFECTS Ecology Evolution Behavior and Systematics Ecology biology Parorchites zederi 010604 marine biology & hydrobiology HISTOPATHOLOGY biology.organism_classification medicine.disease Pygoscelis Gastrointestinal Tract PYGOSCELIS Digestive tract CIENCIAS NATURALES Y EXACTAS Pygoscelis papua |
| Zdroj: | Digital.CSIC. Repositorio Institucional del CSIC instname |
| ISSN: | 0090-3558 |
| Popis: | 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 changes were most severe in adult Gentoo Penguins and included transmural fibrogranulomatous enteritis, hemorrhage, and edema. This report of pathology associated with P. zederi in the digestive tracts of penguins can serve as reference to monitor health in Antarctic birds associated with environmental changes. |
| Databáze: | OpenAIRE |
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