Parasites of the Blue Antimora, Antimora rostrata and Slender Codling, Halargyreus johnsonii (Gadiformes: Moridae), in the Northwestern Atlantic
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The blue antimora, Antimora rostrata and slender codling, Halargyreus johnsonii (Gadoformes: Moridae) are common representatives of deep-water marine demersal fish fauna. This paper focuses on infections in blue antimora caught in the northwestern Atlantic region, but also reports observations on the parasites of slender codling obtained from a limited number of specimens from the same location.
Standard methods of parasitological examination, fixation and staining were used. In addition, a genetic analysis of the found acanthocephalans was performed to clarify their taxonomic affiliation.
Blue antimora is mostly infected by juveniles of Anisakis sp. and trematodes Lepidapedon sp. sensu Campbell & Bray, 1993. The trematode Lepidapedon cf. mariannae and nematodes Spinitectus oviflagellis, Fellicola sp., Hysterothylacium gadi gadi, and Capillaria cf. gracilis have been recorded from blue antimora for the first time. The slender codling has been newly recorded as a host of five parasite species: Steringophorus pritchardae; Plerurinae gen. sp.; Lepidapedon cf. mariannae; Ascarophis sp.; Anisakis sp., and Sphyrion lumpi.
Blue antimora and slender codling are recorded as hosts of 14 and 5 parasite taxa, respectively. The parasite fauna of these two species have similar patterns of infection to other bony fish that exist at a similar depth (800–2000) within the studied region.
KeywordsAntimora rostrata Halargyreus johnsonii Parasites Infection North Atlantic Ocean
The authors would like to thank the crew of RV Lance and FV Nuevo Malaga for their assistance with samplings. Special thanks go to Mrs. Irina Shirvel («RKF, Ltd.», Murmansk, Russia) for her help with the transportation of frozen samples from Vigo to Moscow. The research was supported by the Russian Science Foundation (Grant no. 17-74-10203). Specimens collection and transportation were supported by the Russian Foundation for Basic Research (Grant no. 16–04–00516).
IG—specimens dissection, parasite species identification, genetics, text preparation; SS—species identification, drawings, text preparation, RB—sampling, specimens transportation, XM—sampling, specimens transportation, AO—host species identification, advising, text preparation.
Compliance with Ethical Standards
Conflict of interest
Authors declare no conflict of interests.
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