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Diseases of Aquatic Organisms

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DAO 128:225-233 (2018)  -  DOI: https://doi.org/10.3354/dao03227

Two novel myxosporean parasites in Black Sea fishes: Kudoa niluferi sp. nov. and Kudoa anatolica sp. nov. (Cnidaria: Myxosporea)

A. Özer1,*, S. Okkay1,2, C. T. Gürkanlı3, Y. Çiftçi3, V. Yurakhno4

1Sinop University, Faculty of Fisheries and Aquatic Sciences, 57000, Sinop, Turkey
2Kocaeli University, Graduate School of Natural and Applied Sciences, Kocaeli, Turkey
3Ordu University, Faculty of Marine Sciences, Fatsa, 52400 Ordu, Turkey
4A.O. Kovalevsky Institute of Marine Biological Research of RAS, 2 Nakhimov av., 299011 Sevastopol, Crimea
*Corresponding author:

ABSTRACT: Members of the genus Kudoa are typically histozoic and only a few are coelozoic parasites, mainly in marine fishes. In the present study, 2 novel Kudoa species were recovered and described as Kudoa niluferi sp. nov. in the musculature of Neogobius melanostomus and Kudoa anatolica sp. nov. in the musculature, urinary bladder and kidney of Atherina hepsetus collected from the coast of Sinop on the Black Sea. Means ± SD (ranges) of mature spores of K. niluferi sp. nov. were 5.9 ± 0.1 (5.7-6.1) µm in length, 9.2 ± 0.2 (8.8-9.5) µm in width and 7.5 ± 0.3 (7.0-8.1) µm in thickness, while those of K. anatolica sp. nov. were 4.1 ± 0.3 (3.5-4.1) µm in length, 7.1 ± 0.2 (6.7-7.2) µm in width and 5.7 ± 0.2 (5.3-6.0) µm in thickness. In both parasite species, length and width of the 4 polar capsules were not equal and formed 3 distinct size classes, largest (1), intermediate (2) and smallest (1) in size. The prevalence and intensity of infection by K. niluferi sp. nov. were 12.8% and 20-29 parasites (per field-of-view, at 200× magnification), respectively, in the musculature of N. melanostomus. These values for K. anatolica sp. nov. were 32.1% and 10-19 parasites in the musculature as well as 2.9% and 20-29 parasites jointly in the kidney and urinary bladder of A. hepsetus. Phylogenetic analysis based on nuclear small subunit rDNA also suggested K. niluferi and K. anatolica as 2 novel species. These species appeared in the same lineage with K. nova and formed a Black Sea lineage.


KEY WORDS: Kudoa · Myxozoa · Black Sea · Turkey


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Cite this article as: Özer A, Okkay S, Gürkanlı CT, Çiftçi Y, Yurakhno V (2018) Two novel myxosporean parasites in Black Sea fishes: Kudoa niluferi sp. nov. and Kudoa anatolica sp. nov. (Cnidaria: Myxosporea). Dis Aquat Org 128:225-233. https://doi.org/10.3354/dao03227

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