Gill infection of Symphodus tinca by Henneguya sp. (Myxozoa, Myxobolidae) in Kerkennah Islands, Tunisia.

摘要

Morphological and histological characteristics of Henneguya sp. parasitizing the gill arches of Symphodus tinca (Linnaeus, 1758) collected from Kerkennah islands in Tunisia are described. The parasite developed macroscopic whitish plasmodia in the gill arches. The mature spores were rounded oval in front view with a total length 41.8 (38-50) micro m; the spore body was 13.1 (13-14) micro m in length by 9.1 (9-10) micro m in width. The caudal appendages measuring 28.4 (25-32) micro m in length were considerably thin at the end. The prevalence infection by Henneguya sp. was 13%.