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Volume 15
Issue 10
10.3390/d15101036
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Article

Genetic Structure of Juvenile Stages of Phocanema bulbosum (Nematoda, Chromadorea: Anisakidae) Parasitizing Commercial Fish, Atlantic Cod Gadus morhua, and American Plaice Hippoglossoides platessoides in the Barents Sea

by
Ilya I. Gordeev
1,2,*,
Yuri I. Bakay
3,
Marina Yu. Kalashnikova
3,
Andrey D. Logvinenko
2,
Olga R. Emelianova
4,5 and
Sergey G. Sokolov
6
1
Pacific Salmon Department, Russian Federal Research Institute of Fisheries and Oceanography, Okruzhnoy Proyezd 19, 105187 Moscow, Russia
2
Department of Invertebrate Zoology, Faculty of Biology, Lomonosov Moscow State University, Leninskie Gory 1/12, 119234 Moscow, Russia
3
Laboratory of Aquaculture and Hydrobionts Diseases, Polar Branch of the Russian Federal Research Institute of Fisheries and Oceanography, Akademika Knipovicha Srt. 6, 183038 Murmansk, Russia
4
Molecular Genetics Department, Russian Federal Research Institute of Fisheries and Oceanography, Okruzhnoy Proyezd 19, 105187 Moscow, Russia
5
Department of Biological Evolution, Faculty of Biology, Lomonosov Moscow State University, Leninskie Gory 1/12, 119234 Moscow, Russia
6
Center of Parasitology, A.N. Severtsov Institute of Ecology and Evolution, Russian Academy of Sciences, Leninskiy Pros. 33, 119071 Moscow, Russia
*
Author to whom correspondence should be addressed.
Diversity 2023, 15(10), 1036; https://doi.org/10.3390/d15101036
Submission received: 28 July 2023 / Revised: 20 September 2023 / Accepted: 21 September 2023 / Published: 26 September 2023
(This article belongs to the Special Issue Diversity of Macroparasites in Marine Fishes—2nd Edition)
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Abstract

Atlantic cod Gadus morhua and American plaice Hippoglossoides platessoides are two of the most commercially valuable species in the Barents Sea (FAO Area 27). They are considered as an important but neglected source of zoonotic risk associated with nematodes from the genus Phocanema. The abundance of Phocanema spp. in a fish host individual in the Barents Sea may be quite high, which is convenient for studying the genetic structure of its populations. A total of 69 third-stage juveniles of Phocanema spp. were isolated from the liver, the mesentery, and the musculature of G. morhua and H. platessoides and genotyped by the mtDNA Cox2 gene. Almost all these juveniles (68) were molecularly identified as P. bulbosum. The mtDNA Cox2 gene was also used to reveal the haplotype diversity and the genetic structure of P. bulbosum. A comparison of the specimens examined in this study with each other and with the haplotypes previously identified by us in the White Sea showed that there were no significant differences between the groups from different hosts and from different catch areas.
Keywords: nematode; cod; fish infection; helminth; Phocanema nematode; cod; fish infection; helminth; Phocanema

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MDPI and ACS Style

Gordeev, I.I.; Bakay, Y.I.; Kalashnikova, M.Y.; Logvinenko, A.D.; Emelianova, O.R.; Sokolov, S.G. Genetic Structure of Juvenile Stages of Phocanema bulbosum (Nematoda, Chromadorea: Anisakidae) Parasitizing Commercial Fish, Atlantic Cod Gadus morhua, and American Plaice Hippoglossoides platessoides in the Barents Sea. Diversity 2023, 15, 1036. https://doi.org/10.3390/d15101036

AMA Style

Gordeev II, Bakay YI, Kalashnikova MY, Logvinenko AD, Emelianova OR, Sokolov SG. Genetic Structure of Juvenile Stages of Phocanema bulbosum (Nematoda, Chromadorea: Anisakidae) Parasitizing Commercial Fish, Atlantic Cod Gadus morhua, and American Plaice Hippoglossoides platessoides in the Barents Sea. Diversity. 2023; 15(10):1036. https://doi.org/10.3390/d15101036

Chicago/Turabian Style

Gordeev, Ilya I., Yuri I. Bakay, Marina Yu. Kalashnikova, Andrey D. Logvinenko, Olga R. Emelianova, and Sergey G. Sokolov. 2023. "Genetic Structure of Juvenile Stages of Phocanema bulbosum (Nematoda, Chromadorea: Anisakidae) Parasitizing Commercial Fish, Atlantic Cod Gadus morhua, and American Plaice Hippoglossoides platessoides in the Barents Sea" Diversity 15, no. 10: 1036. https://doi.org/10.3390/d15101036

APA Style

Gordeev, I. I., Bakay, Y. I., Kalashnikova, M. Y., Logvinenko, A. D., Emelianova, O. R., & Sokolov, S. G. (2023). Genetic Structure of Juvenile Stages of Phocanema bulbosum (Nematoda, Chromadorea: Anisakidae) Parasitizing Commercial Fish, Atlantic Cod Gadus morhua, and American Plaice Hippoglossoides platessoides in the Barents Sea. Diversity, 15(10), 1036. https://doi.org/10.3390/d15101036

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