Larval spirurids in a supralittoral amphipod in the north-east of Russia and the identification of the intermediate host of Antechiniella septentrionalis (Spirurida: Acuariidae), parasitic in a tundra vole

E S Ivanova; N E Dokuchaev; S E Spiridonov

doi:10.1017/S0022149X19000750

Larval spirurids in a supralittoral amphipod in the north-east of Russia and the identification of the intermediate host of Antechiniella septentrionalis (Spirurida: Acuariidae), parasitic in a tundra vole

J Helminthol. 2019 Sep 13:94:e87. doi: 10.1017/S0022149X19000750.

Authors

E S Ivanova¹, N E Dokuchaev², S E Spiridonov¹

Affiliations

¹ Centre of Parasitology of A.N. Severtsov Institute of Ecology and Evolution RAS, Leninskii prospect 33, 119071 Moscow, Russia.
² Institute of Biological Problems of the North, Far East Branch, Russian Academy of Sciences, 685000 Magadan, Russia.

PMID: 31514757
DOI: 10.1017/S0022149X19000750

Abstract

The supralittoral amphipod Traskorchestia ditmari (Derzhavin, 1923) was identified as the intermediate host for Antechiniella septentrionalis Ivanova, Dokuchaev & Spiridonov, 2019, a parasite of the tundra vole Microtus oeconomus and Skrjabinocerca sp. (both Spirurida: Acuariidae) in Magadan Oblast in north-eastern Russia. Joint infection by both larval spirurids was not observed. The infective stage of A. septentrionalis was the encysted larvae, while larvae of Skrjabinocerca sp. were free in the amphipod's coelom. The identity of A. septentrionalis was confirmed using cox1 mtDNA gene analysis, performed on adult stages from a tundra vole and on larvae from amphipods. Possible transmission routes of A. septentrionalis are discussed.

Keywords: Antechiniella septentrionalis; Skrjabinocerca; Spirurida; Traskorchestia ditmari; coxI mtDNA; morphology; sp.; transmission routes.

MeSH terms

Amphipoda / parasitology*
Animals
Arvicolinae / parasitology*
Female
Larva
Male
Russia
Spirurida / growth & development
Spirurida / physiology*
Spirurida Infections / veterinary*
Tundra