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Description and population dynamics of Dactylogyrus legionensis n.sp. from Barbus barbus bocagei Steind

Published online by Cambridge University Press:  18 November 2009

Ma. C. Gonzalez-Lanza
Affiliation:
cor1corresp
*
Laboratorio de Parasitologia, Facultad de Veterinaria y Estación Agricola Experimental (CSIC), León (Spain)
Ma. P. Alvarez-Pellitero
Affiliation:
cor1corresp
*
Laboratorio de Parasitologia, Facultad de Veterinaria y Estación Agricola Experimental (CSIC), León (Spain)

Abstract

Dactylogyrus legionensis n. sp., a monogenean parasite from the gills of Barbus barbus bocagei from the Esla river (León, NW Spain), is described and its population dynamics discussed. It differs from the closely related species, D. balistae, in the presence of vaginal armour and in the morphology of the copulatory organ. D. legionensis was found on 30·40% of barbel, with a mean intensity of 13·71 and maximum infection levels in autumn-winter. The prevalence and intensity of infection rose significantly with the age and length of the barbel, and were higher in females than in males. D. legionensis showed preference for the second and first gill arches, sector III and the internal zone of each hemibranch.

Type
Research Note
Copyright
Copyright © Cambridge University Press 1982

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