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Kashinskaya EN, Vlasenko PG, Kolmogorova TV, Izotova GV, Shokurova AV, Romanenko GA, Markevich GN, Andree KB, Solovyev MM. Metapopulation Structure of Two Species of Pikeworm ( Triaenophorus, Cestoda) Parasitizing the Postglacial Fish Community in an Oligotrophic Lake. Animals (Basel) 2023; 13:3122. [PMID: 37835728 PMCID: PMC10571662 DOI: 10.3390/ani13193122] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2023] [Revised: 08/18/2023] [Accepted: 08/19/2023] [Indexed: 10/15/2023] Open
Abstract
In the present study, we estimated the levels of infestation of the main fish species that are hosts for two Triaenophorus species: T. crassus and T. nodulosus. The prevalence of T. crassus and T. nodulosus infestations in the intestine of their definitive host-pike Esox lucius was similar (71.0% and 77.4%, respectively). At the same time, the prevalence of T. crassus infestation in muscle tissue was significantly different between the second intermediate hosts, Coregonus lavaretus pidschian (31.4%) and Cor. l. pravdinellus (91.2%), due to considerable differences in their diets. For T. nodulosus, we found significant variations in the levels of prevalence among the second intermediate hosts-100% for Lota lota, 81.8% for Cottus sibiricus 31.9% for Thymallus arcticus, and 24.5% for Perca fluviatilis-that we also explained using different diets. Moreover, analysis of the symmetry of parasite infestations did not reveal any asymmetry between the number of cysts in the left and right body surfaces of the "planktivorous" form/species of whitefish, whereas in the ''benthivorous", an asymmetry of parasite infestations was found.
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Affiliation(s)
- Elena N. Kashinskaya
- Papanin Institute for Biology of Inland Waters, Russian Academy of Sciences, Borok 152742, Yaroslavl Region, Russia
- Institute of Systematics and Ecology of Animals of Siberian Branch, Russian Academy of Sciences, Novosibirsk 630091, Russia (M.M.S.)
- A.N. Severtsov Institute of Ecology and Evolution, Russian Academy of Sciences, Moscow 119071, Russia
| | - Pavel G. Vlasenko
- Institute of Systematics and Ecology of Animals of Siberian Branch, Russian Academy of Sciences, Novosibirsk 630091, Russia (M.M.S.)
- A.N. Severtsov Institute of Ecology and Evolution, Russian Academy of Sciences, Moscow 119071, Russia
| | - Tatyana V. Kolmogorova
- Institute of Systematics and Ecology of Animals of Siberian Branch, Russian Academy of Sciences, Novosibirsk 630091, Russia (M.M.S.)
| | - Gelena V. Izotova
- Institute of Systematics and Ecology of Animals of Siberian Branch, Russian Academy of Sciences, Novosibirsk 630091, Russia (M.M.S.)
- A.N. Severtsov Institute of Ecology and Evolution, Russian Academy of Sciences, Moscow 119071, Russia
| | - Anastasiya V. Shokurova
- Institute of Systematics and Ecology of Animals of Siberian Branch, Russian Academy of Sciences, Novosibirsk 630091, Russia (M.M.S.)
- A.N. Severtsov Institute of Ecology and Evolution, Russian Academy of Sciences, Moscow 119071, Russia
| | - Georgy A. Romanenko
- Altai Branch of «VNIRO» («AltaiNIRO»), Barnaul 656043, Russia
- FBUZ «Center of Hygiene and Epidemiology in the Altai Territory», Barnaul 656049, Russia
| | - Grigorii N. Markevich
- A.N. Severtsov Institute of Ecology and Evolution, Russian Academy of Sciences, Moscow 119071, Russia
- Kronotsky Nature Reserve, Yelizovo 684000, Kamchatka Region, Russia
| | - Karl B. Andree
- Institut de Recerca i Tecnologìa Agroalimentaries (IRTA), 43540 Sant Carles de la Ràpita, Spain
| | - Mikhail M. Solovyev
- Institute of Systematics and Ecology of Animals of Siberian Branch, Russian Academy of Sciences, Novosibirsk 630091, Russia (M.M.S.)
- A.N. Severtsov Institute of Ecology and Evolution, Russian Academy of Sciences, Moscow 119071, Russia
- Biological Institute, Tomsk State University, Tomsk 634050, Russia
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Duan Y, von Gersdorff Jørgensen L, Kania PW, Karami AM, Al‐Jubury A, Buchmann K. Eye fluke effects on Danish freshwater fish: Field and experimental investigations. JOURNAL OF FISH DISEASES 2021; 44:1785-1798. [PMID: 34289126 PMCID: PMC9292478 DOI: 10.1111/jfd.13496] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/03/2021] [Revised: 07/03/2021] [Accepted: 07/07/2021] [Indexed: 06/13/2023]
Abstract
Eye flukes in fish are common in freshwater lakes. Fish become infected by the penetration of cercariae released from freshwater snails, and high infection pressures may be associated with mortalities in a Danish lake. Examination of two other freshwater lakes, combined with laboratory study, supported the notion. We investigated 77 freshwater fish from two lakes and the infection level suggested the occurrence of a high cercarial infection pressure in the Danish lakes. Dominant genera were Tylodelphys and Diplostomum covering a range of species identified by PCR and sequencing of the 18S (partial)-ITS1-5.8S-ITS2-28S (partial) of the rDNA. Cercariae of the prevalent species Diplostomum pseudospathaceum were used to infect zebrafish Danio rerio for the elucidation of short-term effects on the fish host. Zebrafish did not display abnormal behaviour when exposed to 200-400 cercariae, but a dosage of 600 and 1,000 cercariae/fish proved lethal. When fish were exposed to sublethal dosages, 19 out of 27 immune genes were significantly regulated and three genes encoding cytokine (IL 4/13B, IL-6 and IL-8) were upregulated at 3 hr post-infection (hpi), whereas others were downregulated especially at a later time point. We suggest that direct massive cercarial penetration of fish surfaces may be detrimental and may represent a threat to fish populations.
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Affiliation(s)
- Yajiao Duan
- Laboratory of Aquatic PathobiologyDepartment of Veterinary and Animal SciencesFaculty of Health and Medical SciencesUniversity of CopenhagenFrederiksberg CDenmark
| | - Louise von Gersdorff Jørgensen
- Laboratory of Aquatic PathobiologyDepartment of Veterinary and Animal SciencesFaculty of Health and Medical SciencesUniversity of CopenhagenFrederiksberg CDenmark
| | - Per Walter Kania
- Laboratory of Aquatic PathobiologyDepartment of Veterinary and Animal SciencesFaculty of Health and Medical SciencesUniversity of CopenhagenFrederiksberg CDenmark
| | - Asma M. Karami
- Laboratory of Aquatic PathobiologyDepartment of Veterinary and Animal SciencesFaculty of Health and Medical SciencesUniversity of CopenhagenFrederiksberg CDenmark
| | - Azmi Al‐Jubury
- Laboratory of Aquatic PathobiologyDepartment of Veterinary and Animal SciencesFaculty of Health and Medical SciencesUniversity of CopenhagenFrederiksberg CDenmark
| | - Kurt Buchmann
- Laboratory of Aquatic PathobiologyDepartment of Veterinary and Animal SciencesFaculty of Health and Medical SciencesUniversity of CopenhagenFrederiksberg CDenmark
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