Trawl survey of Pacific salmon on the R/V “Professor Kaganovsky” in the northwestern part of the Pacific Ocean (May-July 2018)

Гордеев, И. И.; Starovoytov, Alexander N.; Ponomarev, S. S.; Shevlyakov, V. A.; Milovankin, P. A.

doi:10.36038/2307-3497-2018-171-208-213

Cited by 4 publications

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“…It can be assumed that this is a consequence of the wavelike change in the number of both parasites and their hosts. In 1958, when Mamaev and his colleagues collected their samples, only 39 tons of pink salmon were caught in the Russian Far East, while in 2018, it was the historical maximum of the pink salmon fishing season, and more than 511 tons were caught (Gordeev et al, 2018). Undoubtedly, the 13-fold difference in the number of hosts that did not form shoals during the feeding migration could affect the dynamics of parasitic cycles.…”

Section: Discussionmentioning

confidence: 99%

“…All specimens were caught between 31 May and 9 July 2018 by the research vessel Professor Kaganovsky during a survey of Pacific salmon (stock assessment), using midwater net trawl RT/TM 80/396, with a 10 mm mesh insert in the In the present paper, we summarise the results of the parasitological examination of 25 species of teleost and cartilaginous, epipelagic and eurybathic fishes in the north-western Pacific Ocean performed aboard the RV Professor Kaganovsky in June-July 2018 (Gordeev et al, 2018).…”

Section: Methodsmentioning

confidence: 99%

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Macroparasites of epipelagic and eurybathic fishes in the north-western Pacific

Гордеев

Соколов

2020

Invertzool

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A total of 25 parasitic species were found to infect 23 species of teleost and two species of cartilaginous fish in the north-western Pacific. Known generalists, anisakid and raphidascaridid juveniles (Nematoda), plerocercoids of Nybelinia surmenicola (Cestoda), and acanthocephalan Echinorhynchus gadi (Acanthocephala) were prevalent; however, plerocercoids of Pelichnibothrium speciosum were the most common parasites of epipelagic and eurybathic fish, infecting 16 out of 23 examined teleost species. Digenean infection of eurybathic species Aptocyclus ventricosus (Cyclopteridae), Zaprora silenus (Zaproridae), Leuroglossus schmidti (Bathylagidae), and Icichthys lockingtoni (Centrolophidae) differ from other teleost fish in their parasite fauna. The present study is the first report of macroparasites from Magnisudis atlantica (Paralepididae) and I. lockingtoni. In addition, this is the first data on the infection of Gasterosteus aculeatus (Gasterosteidae) far into the open ocean. Macroparasite infection of fish in the epipelagic layer of the northwestern Pacific Ocean is characterised by high infection rates and low species diversity of parasites.

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Section: Discussionmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

Macroparasites of epipelagic and eurybathic fishes in the north-western Pacific

Гордеев

Соколов

2020

Invertzool

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Phylogenetic position of the hemiuroid genus Paraccacladium Bray & Gibson, 1977 (Trematoda: Hemiuroidea) and the status of the subfamily Paraccacladiinae Bray & Gibson, 1977

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Atopkin

Гордеев

2021

Marine Biology Research

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The neuromuscular system in flatworms: serotonin and FMRFamide immunoreactivities and musculature in Prodistomum alaskense (Digenea: Lepocreadiidae), an endemic fish parasite of the northwestern Pacific

et al. 2021

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Using the immunocytochemical method and confocal scanning laser microscopy, the pioneering data are obtained on the muscle system organization and presence and localization of biogenic amine serotonin and FMRFamide-related peptides in the nervous system of trematode Prodistomum alaskense (Ward and Fillingham, 1934) Bray and Merrett, 1998 (family Lepocreadiidae). This flatworm is an intestinal parasite of endemic representatives of marine fauna of the north-western Pacific Ocean – the prowfish, Zaprora silenus Jordan, 1896 and the lumpfish, Aptocyclus ventricosus Pallas, 1769. The article provides data of scanning electron microscopy on the tegumental topography of P. alaskense. The body wall musculature of P. alaskense has three layers of muscle fibres – the outer circular, intermediate longitudinal and inner diagonal ones. The muscle system elements are well-developed in the attachment organs, digestive and reproductive systems, in the excretory sphincter. Serotonin- and FMRFamide-immunopositive neurons and neurites are found in the head ganglia, circular commissure, longitudinal nerve cords, and in the transversal connective commissures. The innervation of the oral and ventral suckers, pharynx, and the reproductive system compartments by the serotonergic and FMRFamide-immunopositive neurites is revealed. The results are discussed in connection with the published data on the presence and functional roles of the serotonin and FMRFamide-related peptides in Platyhelminthes.

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Trawl survey of Pacific salmon on the R/V “Professor Kaganovsky” in the northwestern part of the Pacific Ocean (May-July 2018)

Cited by 4 publications

References 0 publications

Macroparasites of epipelagic and eurybathic fishes in the north-western Pacific

Macroparasites of epipelagic and eurybathic fishes in the north-western Pacific

Phylogenetic position of the hemiuroid genus Paraccacladium Bray & Gibson, 1977 (Trematoda: Hemiuroidea) and the status of the subfamily Paraccacladiinae Bray & Gibson, 1977

The neuromuscular system in flatworms: serotonin and FMRFamide immunoreactivities and musculature in Prodistomum alaskense (Digenea: Lepocreadiidae), an endemic fish parasite of the northwestern Pacific

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