[The seasonal distribution and effect of tench fish (Tinca tinca L., 1758) helminthes parasites living in Terkos lake].
OBJECTIVE
The aim of this study, carried out from August, 2009 to July, 2010, was to determine the seasonal distribution of tench fish (Tinca tinca L. 1758) helminthes inhabiting the Terkos lake.


METHODS
Living fish gathered from the study area were brought into the laboratory. The species analysis done by ecto and endo parasites of the fish were investigated.


RESULTS
During the study, a total of 165 tenches (T. tinca) were investigated. Endoparasites in tenches were found to be plerocercoids of Ligula intestinalis plerocercoid (Linnaeus, 1758), Caryophyllaeus laticeps (Pallas, 1781), Bothriocephalus acheilognathi (Yamaguti, 1934) and Proteocephalus torulosus (Bats ch, 1786) from Cestoda, Asymphylodora tincae (Modeer, 1790) from Digenea and ectoparasite in tenches were found to be Piscicola geometra (Linnaeus, 1761) from Hirudinea.


CONCLUSIONS
The study shows that among these parasites those which were widespread were: Asymphylodora tincae spreads more in spring, Ligula intestinalis in autumn, Caryophyllaeus laticeps, Bothriocephalus acheilognathi and Protocephalus torulosus in summer and Piscicola geometra in winter.
Ankara Üniversitesi Fen Bilimleri Enstitüsü, Biyoloji Anabilim Dalı, Ankara, Turkey. murdemirtas@hotmail.com
Murat
M
Demirtaş
D000818:Animals; D003530:Cyprinidae / Q000469:parasitology*; D005393:Fish Diseases / Q000453:epidemiology* / Q000469:parasitology; D006374:Helminthiasis, Animal / Q000453:epidemiology* / Q000469:parasitology; D060106:Lakes; D012621:Seasons; D014421:Turkey / Q000453:epidemiology