New Host Species and New Distribution Areas of Salmincola lavaretus (Copepoda: Lernaeopodidae) - a Parasite of Coregonid Fishes of Siberia
T. G. BURDUKOVSKAYA, N. M. PRONIN
Institute of General and Experimental Biology, SB RAS, 670047, Ulan-Ude, Sakhyanovоy str., 6
Keywords: паразитические копеподы, Salmincola lavaretus, обонятельные ямки, лососевидные рыбы, зараженность, распространение, parasitic copepods, Salmincola lavaretus, nаsal fossae, salmonid fishes, infestation, distribution
Abstract
Data on the infestation of certain fish species by the parasitic copepod Salmincola lavaretus are presented for the first time. The infested fish species included: Bauntovsky whitefish ( Coregonus baunti ), an endemic species from the Maloye and Bolshoye Kapylyushi Lakes; Siberian whitefish ( C. pidschian) and vendace ( C. sardinella) from the Bolshoye Kapylyushi Lake and the Baunt Lake which belong to the Tsypo-Tsypikan lake system (the Lena River basin, Transbaikalia); Teletsky whitefish ( C. lavaretus natio smitti ) from Teletskoe Lake (the Ob River basin). Previously, S. lavaretus had been described as a parasite of Baikal omul ( C. migratorius ) and Baikal whitefish ( C. baicalensis ) from Lake Baikal. The taxons of S. longimanus complex ( S. longimanus, S. l. sibirica, S. svetlanovi, S. lavaretus ) - parasites of nаsal fossae of grayling and coregonid fishes - were registered in the lakes of the Lake Baikal basin (Lake Baikal and Khovsgol Lake), the Lena River, the Yenisei and the Ob rivers (the largest rivers of the Arctic zoogeographic province) and the Kobdo River (the Western Mongolian province). It was assumed that S. longimanus complex is more widely distributed in the water bodies of the Arctic zoogeographic province of the Palearctic.
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