Abdybekova, A.M., A.A. Abdibayeva, N.N. Popov, A.A. Zhaksylykova, B.I. Barbol, B.Z. Bozhbanov & P.R. Torgerson. (2020). Helminth parasites of fish of the Kazakhstan sector of the Caspian Sea and associated drainage basin. Helminthologia. 57(3): 241-251.

385331

10.2478/helm-2020-0030 [view]

Abdybekova, A.M., A.A. Abdibayeva, N.N. Popov, A.A. Zhaksylykova, B.I. Barbol, B.Z. Bozhbanov & P.R. Torgerson

2020

57(3): 241-251.

Publication

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The northern section of the Caspian Sea is an important fishery for Kazakhstan. In the present study, a total of 606 individuals of 13 fish species were collected. For each of Abramis brama, Alosa saposchnikowii, Atherina boyeri caspia, Carassius auratus, Clupeonella cultriventris, Cyprinus carpio, Liza aurata, Leuciscus aspius, Rutilus rutilus caspius, Sander lucioperca, Sander marinus, and Sander volgensis 50 individuals were examined whilst 6 individuals of Siluris glanis were examined. The nematode parasite Anisakis schupakovi was found in all fish species except Liza aurata, Carassius aurata, Cyprinus carpio and Rutilus rutilus at intensities ranging from 1 to 1197 parasites per infected fish. Trematodes of family Diplostomidae were also isolated from all fish except Alosa saposhnikowii, Clupeonella cultriventris and Sander marinus at intensities ranging from 1 to 242 parasites per infected fish. Other parasites found included the nematodes Porrocaecum reticulatum, Contracecum sp, Camallanus sp and Eustrongylus excisus; the cestodes Neogryporhynchus cheilancristrotus, Bothriocephalus opsariichthydis; the monogenean parasites Mazocraes alosa, Ancyrocephalus paradocus, Gyrodactylus spp, Ligophorus vanbenedenii and Dactylogyrus spp; and the crustacean parasites Ergasilus sp. and Synergasilus sp. In addition one unidentified species of nematode and a bivalve of the genus Unio was recovered from Rutilus rutilus caspius. There was no association between Fulton’s condition index and intensity of parasite infection. Keywords: Caspian Sea; Fish; Parasites; Kazakhstan

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