A Second Collection of Myxosporeans (Phylum Myxozoa) Parasitic on Some Fishes from Tigris River at Baghdad Province, Iraq

Jawdat Majeed Al-Jawda; Kassim Radhawye Asmar

doi:7040199

A total of 98 fish specimens were collected from three sites at Tigris River (Al-Taji, Al-Shawaka and Al-Zaafaraniya) of Baghdad province during the period from January to December 2011. These fishes belonged to eight species: Alburnus caeruleus, Carasobarbus luteus, Carassius carassius, Chondrostoma regium, Cyprinus carpio, Leuciscus vorax, Liza abu and Silurus triostegus. Result of inspection showed that five fish species were infected with 16 species of myxosporeans. These myxosporeans included one species of Chloromyxum, two species of Myxidium and 13 species of Myxobolus. Among all these parasites, Myxobolus cyprinicola, M. parvus and M. sphaericus infected the highest number of hosts (four host species each), while six parasite species infected only one host each. Among these fishes, C. luteus was infected with the highest number of parasite species (13 species), followed by C. regium and L. abu (eight species each) and S. triostegus (one species) while no infection was detected from three fish species (A. caeruleus, L. vorax and C. carpio). In addition, a total of 12 new host records in Iraq were reported for nine species of these parasites.

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