Site preference of fish myxosporeans in the gill

Research output: Contribution to journalArticle

98 Citations (Scopus)

Abstract

In addition to the morphological and size characteristics of the spores, indicating the exact location and tissue specificity is also essential for differentiation of the large number of species belonging to the group of gill-parasitic fish, the myxosporeans. According to the observations of the present author, Myxobolus, Henneguya and Thelohanellus species are characterised by strict tissue specificity, and species showing affinity to the epithelium, connective tissue, cartilage or vascular tissue usually occur in a strictly defined location within the gill apparatus. Some of the species typically form plasmodia in the lamellae of the gill and others in the gill filaments. Yet other species develop their plasmodia at the base of the gill filament or in the gill arch. Instead of the generally accepted but misleading terms 'intra-' and 'interlamellar', the present author distinguishes interlamellar-epithelial and intralamellar-vascular types in the case of plasmodia developing in the gill lamellae, and intrafilamental-epithelial, intrafilamental-vascular and intrafilamental-chondroidal types in the case of plasmodia developing in the gill filaments. Regarding site of development within the gill, the location of basifilamental plasmodia and that of plasmodia developing in the cartilaginous matrix, connective tissue or blood vessels of the gill arch are well distinguishable from the above types. The different types and their variations are shown in histological illustrations.

Original languageEnglish
Pages (from-to)197-207
Number of pages11
JournalDiseases of Aquatic Organisms
Volume48
Issue number3
Publication statusPublished - Apr 5 2002

Fingerprint

gills
Plasmodium
fish
arch
blood vessels
connective tissues
spore
vessel
blood
Henneguya
tissue
Myxobolus
matrix
vascular tissues
cartilage
epithelium
spores

Keywords

  • Henneguya
  • Myxobolus
  • Myxosporea
  • Site selection
  • Terminology
  • Thelohanellus

ASJC Scopus subject areas

  • Aquatic Science
  • Ecology

Cite this

Site preference of fish myxosporeans in the gill. / Molnár, K.

In: Diseases of Aquatic Organisms, Vol. 48, No. 3, 05.04.2002, p. 197-207.

Research output: Contribution to journalArticle

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