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Diseases of Aquatic Organisms

    DAO prepress abstract   -  DOI:

    Invasive Amirthalingamia macracantha (Cestoda: Cyclophyllidea) larvae infecting tilapia hybrids in Israel: a potential threat for aquaculture

    Tomáš Scholz*, Nadav Davidovich, Ortal Aflalo, Shoshi Hadar, Monica L. Mazuz, Daniel Yasur-Landau

    *Corresponding author:

    ABSTRACT: Larvae (metacestodes) of gryporhynchid tapeworms (Cestoda: Cyclophyllidea) are reported for the first time from the liver of tilapia hybrids (Oreochromis aureus × O. niloticus) reared in earth ponds in the northeastern part of Israel (along the Jordan River). It is the first record of Amirthalingamia macracantha (Joyeux & Baer, 1935), a parasite of cormorants (Phalacrocoracidae), outside Africa and outside the tropics. Larvae found in the liver of tilapias (Cichlidae) were identified to the species level because they possess 20 massive rostellar hooks of three types, with the four largest hooks measuring almost 500 µm. Potential importance of metacestodes infecting tilapias for fish health and the possible route of introduction of this African parasite to Israel are discussed.