Helminth Diversity in Teleost Fishes from the South Orkney Islands Region, West Antarctica

  • T. Kuzmina I. I. Schmalhausen Institute of Zoology NAS of Ukraine https://orcid.org/0000-0002-5054-4757
  • O. Salganskiy State Institution National Antarctic Scientific Center, Kyiv, Ukraine
  • K. Vishnyakova State Institution National Antarctic Scientific Center, Kyiv, Ukraine; Scientific Research Institution Ukrainian Scientific Centre of Ecology of the Sea, Ministry of Ecology and Natural Resources of Ukraine, Odesa, Ukraine https://orcid.org/0000-0002-6455-6601
  • J. Ivanchikova Schmalhausen Institute of Zoology, NAS of Ukraine; State Institution National Antarctic Scientific Center, Kyiv, Ukraine; Scientific Research Institution Ukrainian Scientific Centre of Ecology of the Sea, Ministry of Ecology and Natural Resources of Ukraine, Odesa, Ukraine
  • O. Lisitsyna Schmalhausen Institute of Zoology, NAS of Ukraine https://orcid.org/0000-0002-2975-3300
  • E. Korol National Museum of Natural History NAS of Ukraine https://orcid.org/0000-0002-4061-5179
  • Yu. Kuzmin Schmalhausen Institute of Zoology, NAS of Ukraine; African Amphibian Conservation Research Group, Unit for Environmental Sciences and Management, North-West University, South Africa https://orcid.org/0000-0002-1723-1265
Keywords: Helminths, Acanthocephala, Nematoda, Cestoda, Trematoda, teleost fishes, Antarctica

Abstract

Helminths of 12 fish species collected near South Orkney Islands, West Antarctica were studied. In the whole sample of 115 fish specimens, we identified one species of Monogenea, 5 species of Trematoda, 4 species of Cestoda, 5 species of Nematoda, and 7 species of Acanthocephala. All cestode species, 3 species of nematodes, and 5 species of acanthocephalans were represented only by larval stages; fish are definitive hosts for the remaining 10 helminth species. Details of composition and structure of helminth communities were studied in 3 fish species: Chaenocephalus aceratus (Lönnberg, 1906), Champsocephalus gunnari Lönnberg, 1905, and Pseudochaenichthys georgianus Norman, 1937, each represented by more than 20 specimens in a sample. In these hosts, 19, 8, and 16 helminth species were found, correspondingly. In the helminth communities of C. aceratus and P. georgianus, the highest values of the infection prevalence and abundance were recorded for larval cestodes (Diphyllobothrium sp., Tetrabothriidea), nematodes (Pseudoterranova sp., Contracaecum sp.), acanthocephalans (Corynosoma spp.), as well as adults of the trematode Neolebouria georgiensis Gibson, 1976. The same trematode species and larval cestodes predominated in the helminth community of C. gunnari. All recorded species of parasites are generalists, each known from a range of fish hosts in Antarctica.

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https://doi.org/10.1017/S0954102092000105

Published
2022-02-17
How to Cite
Kuzmina, T., Salganskiy, O., Vishnyakova, K., Ivanchikova, J., Lisitsyna, O., Korol, E., & Kuzmin, Y. (2022). Helminth Diversity in Teleost Fishes from the South Orkney Islands Region, West Antarctica. Zoodiversity, 56(2). https://doi.org/10.15407/zoo2022.02.135
Section
Parasitology