INVESTIGADORES
CRESPO Enrique Alberto
artículos
Título:
Uncinaria hamitltoni (Nematoda, Ancylostomatidae) in South American Sea Lions, Otaria flavescens, from Patagonia.
Autor/es:
BERON VERA, B.; CRESPO, E. A.; RAGA, J. A.; PEDRAZA, S. N.
Revista:
JOURNAL OF PARASITOLOGY
Editorial:
Allen Press
Referencias:
Lugar: Kansas; Año: 2004 vol. 90 p. 860 - 863
ISSN:
0022-3395
Resumen:
Thirty one South American sea lion pups (Otaria
flavescens) found dead in Punta León, Argentina, during summer 2002 were
examined for the first time for hookworms (Uncinaria sp.). Traditional breeding areas and new breeding
areas (with younger animals and a lax social structure) can be found there. Prevalence of hookworms was 50%;
no difference was observed in prevalence between pup sexes (p>0.05).
Hookworms were aggregated in the small intestine. Transmammary transmission is
assumed as only adult hookworms were found. Mean intensity of hookworms per
pups was 135; mean intensity in females (230.25) was significantly different (p<0.05)
from males (92.78). No difference (p>0.05) in prevalence and
intensity was found between the two breeding areas. No apparent trend between
body condition and intensity of hookworms was observed. Uncinariosis may be
considered as a potential mortality factor in South American sea lions in
northern Patagonia.