Abstract
Gyrodactylus parasite infected juveniles on rainbow trout Oncorhynchus mykiss (Walbaum, 1792) from a fish farm in Lake Ladoga were investigated. The observed cases of infection in fish featured a high prevalence, when almost all of the fish were infected. However, if an outbreak of the monogenean infection is observed in spring, the intensity of the infection may be low, and when the infection occurs in the ice-covered period (late autumn — winter), the number of parasites on the fins of a single fish may exceed 3000 specimens. Molecular identification of the parasite demonstrated that the infecting clone was identical with rainbow trout specific strain of Gyrodactylus salaris RBT widely spread in Northern Europe, but a small proportion of the parasites were the hybrid clone Gyrodactylus pomeraniae x G. lavareti. Morphological variations of hooks and other opisthap-tor parts in the monogenean Gyrodactylus depending on the intensity of infection in rainbow trout were demonstrated.
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Barskaya J., Lebedeva D., Lumme J., Veselov A. 2009. Problems of salmon river: parasitological view. In: Proceedings of the 3rd Symposium of Scandinavian Baltic Society of Parasitology, 16–18 April, 2009, Riga, Latvia, 12
Bakke T.A., MacKenzie K. 1993. Comparative susceptibility of native Scottish and Norwegian stocks of Atlantic salmon, Salmo salar L., to Gyrodactylus salaris Malmberg: laboratory experiments. Fisheries Research, 17, 69–85. DOI: 10.1016/0165-7836(93) 90008-U
Bush A.O., Lafferty K.D., Lotz J.M., Shostak A.W. 1997. Parasitology meets ecology on its own terms: Margolis et al. revisited. Journal of Parasitology, 83, 575–583. DOI: 10.2307/3284227
Evseeva N.V. Cross-border fish transport as a pathway for the dispersal of alien parasites. In: Proceedings of the 3rd Interregional Conference of Parasitologists of Siberia and Far East devoted to the 80th anniversary of Professor K.P. Fyodorov. Novosibirsk, 2009, 87–90
Evseeva N.V. Parasitic monogeneans of genera Gyrodactylus and Discocotyle inducing fish diseases in cage aquaculture in Karelia. In: Proceedings of the 29th International Conference “Biological Resources of the White Sea and Internal Water Bodies of the European North”. Murmansk: PINRO publishers, 2013, 58–65
Evseeva N.V., Barskaya J.J., Lebedeva D.I. 2009. The first case of gyrodactylosis of the rainbow trout in aquaculture of Karelia. In: Proceedings of GosNIORH. 7-11 December, 2009, St. Petersburg, 71–76
Ieshko E.P., Lebedeva D.I., Lumme J. 2015. A new Gyrodactylus strain on brown trout (Salmo trutta) in Jänisjärvi, Russian Karelia, and a literature revision of salmonid parasites of the genus Gyrodactylus in North-Western Russia and adjacent areas. Acta Parasitologica, 60, 75–84
Ieshko E.P., Shulman B.S., Shurov I.L., Barskaya Y.Y. 2008. Longterm changes of epizootic juvenile salmon (Salmo salar L.) in the river Keret (the White Sea basin) caused by Gyro-dactylus salaris Malmberg, 1957. Parasitologiya, 42, 486–496
Johnsen B.O., Jensen A.J. 1986. Infestations of Atlantic salmon (Salmo salar) by Gyrodactylus salaris in Norwegian rivers. Journal of Fish Biology, 29, 233–241. DOI: 10.1111/j.1095-8649.1986.tb04941.x
Johnsen B.O., 1978. The effect of an attack by the parasite Gyrodactylus salaris on the population of salmon parr in the river Lakselva, Misvaer in Northern Norway. Astarte 11, 7–9
Kitaev S.P., Ilmast N.V., Sterligova O.P. 2006. Methods for assessing the nutrient load of trout farms on aquatic ecosystems. Karelian Research Centre, Petrozavodsk, Russia, 39 p.
Koski P., Malmberg G. 1995. Occurrence of Gyrodactylus (Monogenea) on salmon and rainbow trout in fish farms in northern Finland. Bulletin of the Scandinavian Society for Parasitology, 5, 76–88
Kuusela J., Holopainen R., Meinila M., Anttila P., Koski P., Ziętara M.S., Veselov A., Primmer C.R., Lumme J. 2009. Clonal structure of salmon parasite Gyrodactylus salaris on a coevolutionary gradient on Fennoscandian salmon (Salmo salar). Annales Zoologici Fennici, 46, 21–33
Kuusela J., Ziętara M.S., Lumme J. 2007. Hybrid origin of Baltic salmon-specific parasite Gyrodactylus salaris: a model for speciation by host switch for hemiclonal organisms. Molecular Ecology, 16, 5234–5245. DOI: 10.1111/j.1365-294X. 2007.03562.x
Kuusela J., Ziętara M. S., Lumme J. 2008. Description of three new European cryptic species of Gyrodactylus Nordmann, 1832 supported by nuclear and mitochondrial phylogenetic characterization. Acta Parasitologica, 53, 120–126. 10.2478/s11686-008-0015-x
Malmberg G. 1957. On the occurrence of Gyrodactylus on Swedish fishes. Skrifter utgivna av Södra Sveriges Fiskeriförening, Arsskrift 1956, 19–76
Ryzhkov L.P. 2008. Cage aquaculture — programme of action. In: Proceedings of the scientific conference “Cage Aquaculture. Technology of cultivation. Feeding the fish and the preservation of their health”, 13-17 October, 2008, Petrozavodsk, 3–6
State Report on the Environment of Karelia in 2013. 2014. Ministry of Nature Use and the Environment of the Republic of Karelia, Petrozavodsk, 328 pp.
Ziętara M.S., Kuusela J, Lumme J. 2006. Escape from an evolutionary dead-end: a triploid clone of Gyrodactylus salaris is able to revert to sex and switch host (Platyhelminthes, Monogenea, Gyrodactylidae). Hereditas, 143, 86–92. DOI: 10.1111/ j.2006.0018-0661.0195
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Ieshko, E., Barskaya, Y., Parshukov, A. et al. Occurrence and morphogenetic characteristics of Gyrodactylus (Monogenea: Gyrodactylidae) from a rainbow trout farm (Lake Ladoga, Russia). Acta Parasit. 61, 151–157 (2016). https://doi.org/10.1515/ap-2016-0020
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DOI: https://doi.org/10.1515/ap-2016-0020