CEPAVE   05420
CENTRO DE ESTUDIOS PARASITOLOGICOS Y DE VECTORES
Unidad Ejecutora - UE
artículos
Título:
Further study of Contracaecum pelagicum (Nematoda: Anisakidae) in Spheniscus magellanicus (Aves: Spheniscidae) from Argentinean coasts
Autor/es:
LUCAS E. GARBIN; GRACIELA T. NAVONE; JULIA I. DIAZ; FLORENCIA CREMONTE
Revista:
JOURNAL OF PARASITOLOGY
Editorial:
Allen Press
Referencias:
Lugar: Lawrence, Kansas. EEUU; Año: 2007 vol. 93 p. 143 - 150
ISSN:
0022-3395
Resumen:
The anisakid species Contracaecum pelagicum Johnston and Mawson, 1942 is reported for first time on 2 different sites on the Argentine coast (Península Valdés, 42º04’S, 63º38’W and Mar del Plata, 38º05’S, 57º38’W), parasitizing the Magellanic penguin, Spheniscus magellanicus Foster. Morphometric analysis and further studies in detail on adult specimens of C. pelagicum were done using light and scanning electron microscopes. The presence of bifurcated interlabia differences the present species from the most of the genus, except from Contracaecum travassosi, which possesses higher interlabia and longer spicules, and a blunter constrained tail, from Contracaecum rudolphii which has longer spicules, blunter spicule tips, post paracloacal papillae with oblique disposition, and blunter constrained tail, from Contracaecum eudyptulae, which has a blunter tail and longer spicules, and from Contracaecum variegatum, which posseses smaller diameter, hook-like extensions on auricle lips, less robust interlabium with a more marked furrow. In this paper, we present the first detailed description of C. pelagicum adults from S. magellanicus. Morphometric data between specimens of C. pelagicum from S. magellanicus and the black-browed albatross, Diomedea melanophris Temminck from Argentinean coasts were compared. In addition, fourth-stage larvae of Contracaecum sp. were studied. Ecological parameters for adults and larvae nematodes were calculated.