Myxidium leei (Myxozoa) infections in aquarium-reared Mediterranean fish species

F. Padrós, O. Palenzuela, C. Hispano, O. Tosas, C. Zarza, S. Crespo, P. Alvarez-Pellitero

Research output: Contribution to journalArticleResearchpeer-review

62 Citations (Scopus)


An episode of parasitic enteritis causing trickling mortalities at an exhibition aquarium reproducing Mediterranean ecosystems was found to be caused by the myxozoan parasite Myxidiurn leei Diamant, Lom & Dykova 1994. The myxozoan was recorded in 25 different fish species belonging to 16 Genera, 10 Families and 4 Orders. It was mainly detected in the intestine of affected fish, and was responsible for severe chronic enteritis. The parasite was probably introduced into the facilities with infected wild fish, and transmitted directly from fish to fish by cohabitation, transfer of infected material and necrophagia. Fish belonging to the Families Labridae and Blenniidae appeared as most susceptible, and the incidence of infections in members of the Sparidae was low. This study significantly widens the host spectrum for this virulent parasite and now includes many ubiquitous coastal Mediterranean species. Wild fish may have a significant role in the transmission of myxidiosis of cultured sparid fish.
Original languageEnglish
Pages (from-to)57-62
JournalDiseases of Aquatic Organisms
Issue number1
Publication statusPublished - 29 Oct 2001


  • Aquaria
  • Infection
  • Mediterranean fish
  • Myxidiurn leei

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