Wild and Cultured Fish Parasites in Türkiye: An Updated List of Species, Hosts, Microhabitat and Zoogeographical Distribution since 2020
2025
Ahmet ÖZER
A total of 624 nominal species-level and genus-level identified species of parasites were reported from 287 different nominal fish species from both wild and cultured marine and freshwater as well as aquarium habitats by 2020. This checklist provides the current state of the knowledge of fish parasites allocated in 10 phyla: Ciliophora, Platyhelminthes (Monogenea, Trematoda, and Cestoda), Cnidaria (Myxozoa), Nematoda, Arthropoda (Copepoda, Isopoda), Annelida, Euglenozoa, Myzozoa, Metamonada, Mollusca and one parasite group Acanthocephala in different water sources, and lists the reported 85 species-level, and 17 genus-level identified parasites in wild marine, 58 species-level and 19 genus-level identified parasites in wild freshwater, 7 species-level identified parasites in cultured marine, 4 species-level and 8 genus-level identified parasites in cultured freshwater, and 7 species-level and 14 genus-level identified parasites in aquarium environments since 2020. In addition, 46 parasite species have been added to the already-known fish parasite fauna, and previously not reported 59 fish species have also been reported to be the new hosts, mostly endemic freshwater species, investigated for parasites. The most specious taxons were Trematoda in marine, Monogenea in freshwater, and Ciliophora in aquarium hosts. This up-to-date checklist compiled from different sources for the last 5 years suggests more efforts to define the accurate diversity of fishes in Türkiye.
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