Helminthofauna of rainbow smelt (Osmerus mordax dentex) at the northern coast of the Okhotsk Sea

Results of parasitological studies of rainbow smelt Osmerus mordax dentex Steindachner et Kner, 1870 at the northern coast of the Okhotsk Sea are presented. Its helminth fauna includes 21 species: Cestoda — 8, Trematoda — 7, Nematoda — 4, and Acanthocephala — 2. Almost all these species (19) were de...

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Bibliographic Details
Published in:Izvestiya TINRO
Main Author: V. V. Pospekhov
Format: Article in Journal/Newspaper
Language:Russian
Published: Transactions of the Pacific Research Institute of Fisheries and Oceanography 2018
Subjects:
osmerus mordax dentex
гельминтофауна
паразитологические исследования
северное побережье охотского моря
инвазия
Aquaculture. Fisheries. Angling
SH1-691
Okhotsk
Kamchatka
okhotsk sea
Sakhalin
Online Access:https://doi.org/10.26428/1606-9919-2018-194-130-138
https://doaj.org/article/e020c2c653554df99bedd421c301018f
Description
Summary:Results of parasitological studies of rainbow smelt Osmerus mordax dentex Steindachner et Kner, 1870 at the northern coast of the Okhotsk Sea are presented. Its helminth fauna includes 21 species: Cestoda — 8, Trematoda — 7, Nematoda — 4, and Acanthocephala — 2. Almost all these species (19) were detected in the Shelikhov Bay, with the highest species diversity among 4 investigated sites in the secondary Perevolochny Bay (14 species). Six species of helminthes from the smelt dwelling in the northern Okhotsk Sea are known as dangerous for human or other mammals: Nybelinia surmenicola, Diphyllobothrium dendriticum, Hysterothy­lacium aduncum, Anisakis simplex, Pseudoterranova decipiens, and Corynosoma strumosum. The species diversity of helminthes at the northern coast is comparable with the number of species at the coasts of Kamchatka (16 species: Cestoda — 4, Trematoda — 5, Nematoda — 4, Acanthocephala — 3) and Sakhalin (19 species: Cestoda — 5, Trematoda — 8, Nematoda — 3, Acanthocephala — 3); totally 33 species of helminthes are detected in these three areas. The cestodes Diplocotile olrikii, Bothriocephalus spp., trematodes Bucephaloides iskaensis, Po­docotyle atomom, and P. reflexa and nematodes Ascorophis pacificus infect rainbow smelt at the northern coast of the Okhotsk Sea only. The most epidemically significant species Anisakis simplex is widely distributed in all three areas.

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