BIOLOGIYA MORYA, 2015, Vol. 41, No. 2, pp. 116-121

The rate of infection of the Pacific herring Clupea pallasii Valenciennes, 1847 (Clupeiformes: Clupeidae) with larval Anisakis simplex (Rudolphi, 1809) (Nematoda: Ascaridata)

© 2015 I. G. Rybnikova¹, G. M. Pushnikova²

¹Far Eastern State Technical Fisheries University, Vladivostok 690087;
²Sakhalin Research Institute of Fisheries and Oceanography, Yuzhno-Sakhalinsk 693023

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Data of interannual and seasonal variations in the rate of infection of Pacific herring with larval nematodes Anisakis simplex in some areas of the Far Eastern seas are considered. A total of 5076 fish have been examined. An analysis of dynamics in the infection rate has shown its reduction from spawning to feeding seasons. The relative abundance of infected fish that remained after spawning is estimated for various areas. The ways by which parasites are removed from fish and also the level of threat that this infection poses to human are discussed.

Key words: herring, nematodes, Anisakis simplex, intensity of invasion, extensiveness of invasion.