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Acta Parasitol. 2018 Dec 19;63(4):839-844. doi: 10.1515/ap-2018-0103.

Helminth and respiratory mite lesions in Pinnipeds from Punta San Juan, Peru.

Author information

1
Department of Pathology, College of Veterinary Medicine, University of Georgia, 501 DW Brooks, Athens, GA, 30602, USA.
2
Universidad Tecnológica del Perú.Lima, Peru.
3
Centro para Sostenibilidad Ambiental, Universidad Peruana Cayetano Heredia.Av. Armendáriz 445, Lima 18, Perú.
4
Zoological Pathology Program, College of Veterinary Medicine, University of Illinois at Urbana-Champaign, Brookfield, IL, 60513, USA.
5
Chicago Zoological Society, Brookfield Zoo, Brookfield, IL 60513, USA.
6
Instituto de Patología Animal, Facultad de Ciencias Veterinarias, Universidad Austral de Chile, Isla Teja s/n, 5090000, Valdivia, Chile.

Abstract

The tissues and parasites collected from Peruvian fur seals (Arctocephalus australis) and South American sea lions (Otaria byronia) found dead at Punta San Juan, Peru were examined. The respiratory mite, Orthohalarachne attenuata infected 3 out of 32 examined fur seals and 3 out of 8 examined sea lions, however caused moderate to severe lymphohistiocytic pharyngitis only in fur seals. Hookworms, Uncinaria sp, infected 6 of the 32 examined fur seals causing variable degrees of hemorrhagic and eosinophilic enteritis. This parasite caused the death of 2 of these pups. In fur seals and sea lions, Corynosoma australe and Contracaecum osculatum were not associated with significant tissue alterations in the intestine and stomach respectively. Respiratory mites and hookworms have the potential to cause disease and mortality among fur seals, while parasitic infections do not impact significatively the health of sea lions at Punta San Juan, Peru.

KEYWORDS:

Hookworm, mite; Orthohalarachne spp.; Peruvian fur seal; South American sea lion; Uncinaria sp.

PMID:
30367764
DOI:
10.1515/ap-2018-0103
[Indexed for MEDLINE]

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