You are here

The infl uence of the biotic and abiotic factors on the state of the parasitic fauna of the hydrobionts in natural waters of the Southern Ukraine

The article observes the results of the scientifi c researches conducted in 2018–2019. 198 samples of the Gobiidae fi shes (Neogobius fl uviatialis Pallas, 1814, Mesogobius batrachocephalus Pallas, 1814, Neogobius melanostomum Pallas, 1814,), as well as 78 samples of other predatory fi shes (Perca fl uviatilis Linnaeus, 1758, Sander lucioperca Linnaeus, 1758, Esox lucius Linnaeus) were subjected to the ihtyopathological analysis with such an aim. The samples were caught in the waters of the Dnipro-Buh estuary near the Dniprovske village and near the Agigol Cape in the Mykolayiv Region. The average index of the invasion extensiveness among the Gobiidae fi shes of the Dnipro-Buh estuary in June counted 26.6%, and the highest level of the invasion intensiveness counted – 94 – 157 metacecaria – the cryptocotyle agents. Following the fi sh-kill in July 2018 it was possible to notice the 114.2 % – decrease of the Gobiidae fi shes population.  The level; of the cryptocotyle invasion of these fi shes reached its peak in August, counting 60.3%, and the amplitude of the invasion intensiveness waved between 102 and 211 samples. In June the level of invasion of the predatory fi shes (perch, pike, sander) with eustrongylides counted 63.8%, and the invasion intensiveness reached the highest point among Esox lucius Linnaeus – from 1 to 8 nematoda larvae. The 47.8 % – decrease of the amount of the predatory fi shes caught in the waters of the DniproBuh estuary was noticed after the fi sh-kill. In August the eustrongylide invasion extensiveness counted 84.3%, and the index of the invasion intensiveness was 2–12 parasites. The impact of the fi sh-eating birds on forming the natural focuses of the cryptocotyle and eustrongylide invasions among the main commercial fi shes of the Dnipro-Buh estuary was determined. Hydrochemical analysis of the waters of the Dnipro-Buh estuary was held separately to determine the reason of the mass fi sh-kill in July 2018. The hydrochemical analysis of the waters of the DniproBuh estuary in July showed contradictions of such points as pH, oxygen, free ammonia, and total hardness to the actual normative legal documents. The inappropriate hydrochemical condition was the reason of the fi sh-kill in the aquatic biological recourses. The infl uence of biotic and abiotic factors on the condition of the parasitic fauna in the researched fi shes of the natural waters of the Southern Ukraine was determined.

Key words: gobiidae fi shes, predatory fi shes, abiotioc and biotic factors, cryptocotilosis, eustrongylidosis. 

1. Byhovskaja-Pavlovskaja I. E. (1985) Parazity ryb. Rukovodstvo po izucheniju [Fish parasites. Study guide]. Leningrad: Nauka, 121 p.

2. Vlasov B.P., Samojlenko V.M., Grishhenkova N.D. Antropogennye izmenenija jekosistemy ozera Bolojso i puti ego vosstanovlenija [Anthropogenic changes in the ecosystem of Lake Boloyso and ways of its restoration]. Zhurnal Belorusskogo gosudarstvennogo universiteta. Geografi ja. Geologija [Journal of Belarusian State University. Geography. Geology]. 2016.  pp. 14–25.

3. GOST 23268.12-78 Vody mineral'nye pit'evye lechebnye, lechebno-stolovye i prirodnye stolovye. Metod opredelenija permanganatnoj okisljaemosti. [State Standart 23268.12-78 Mineral drinking water, medicinal, medicinal and natural table. Method for determination of permanganate oxidizability]. SSSR, 1980, 13 p.

4. Glushankova M.A., Pashkova I.M. (1991) Accumulation of heavy metals by fi sh tissues of lakes of Pskovo-Chudsky and Vyrtsyavr. Akkumuljacija tjazhelyh metallov tkanjami ryb ozer Pskovo-Chudskogo i Vyrtsjavr.  Materialy 2-j Vsesojuz. konf. po rybhozjajstvennoj toksikologii [Materials of the 2nd All-Union. conf. on fi sheries toxicology]. Sankt-Peterburg, T.1.  pp.116–117. (in Russian).

5. Dogel' V.A. (1962) Obshhaja parazitologija [Global parasitology]. Leningrad: I-vo: Leningradskogo universiteta. 463 p.

6. DSTU 4077-2011 Jakіst' vodi. Viznachennja pH [DSTU 4077-2011 Water quality. Determination of pH]. Vidannja ofіcіjne. Kiiv. 2003. 16 p.

7. Zubareva I.M., Vasilevich F.I., Donchenko A.S. (2016) Aspekty obshhej jepizootologii invazionnyh boleznej: ucheb. Posobie [Aspects of the general epizootology of invasive diseases: textbook. allowance]. Novosib. gos. agrar. un-t, MGAVMiB im. K.I. Skrjabina. Novosibirsk: IC NGAU «Zolotoj kolos». 275 p.

8. Karmanova E.M. (1968) Dioktifi midei zhivotnyh i cheloveka i vyzyvaemye imi zabolevanija [Dioctifi midea of animals and humans and diseases caused by them]. Moscow: Nauka. 261 p.

9. Kolesnikov V.A. (2009) Vozdejstvie tjazhjolyh metallov na biohimicheskie reakcii [The impact of heavy metals on biochemical reactions]. Vestnik KrasGAU [Bulletin of KrasGAU]. № 5. pp. 106–111.

10. Kumari Je.V. (2012) Migracija ptic kak zoogeografi cheskaja problema [Bird Migration as a Zoogeographic Problem]. Russkij ornitologicheskij zhurnal  [Russian ornithological journal]. Tom 21. Jekspress-vypusk. 758. pp. 1131–1140.

11. Metodiki gidrohimicheskih issledovanij prob iz rybohozjajstvennyh vodoemov [Methods of hydrochemical research of samples from fi shery reservoirs] Moscow: Izd-vo MSH SSSR № 115-6a ot. 20.10.1983, 1983. 37 p.

12. Novak A.I. (2011) Fiziologicheskie adaptacii parazitov ryb k jekologicheskim osobennostjam sredy obitanija [Physiological adaptation of fi sh parasites to environmental features of the environment]. Vestnik RGAU im. P. A. Kostycheva [Bulletin of RSAU them. P.A. Kostychev]. Nauchno-proizvodstvennyj zhurnal. № 3 (11).  P. 44–49.

13. Naumova A.M., Naumova A.Ju. (2016) Parazitologicheskij kontrol' obektov sel'skohozjajstvennogo rybovodstva [Parasitological control of agricultural fi sh farming facilities]. Rossijskij parazitologicheskij zhurnal [Russian parasitological journal]. Moscow, T. 35.  Vyp. 1. pp. 54–57. DOI: 10.12737/18361

14. Trusheva S.S. (2005) Gіdrobіologіja. Іnteraktivnij kompleks navchal'no-metodichnogo zabezpechennja disciplіn [Hydrobiology. An interactive set of educational and methodological support of disciplines]. Rіvne: Nacіonal'nij unіversitet vodnogo gospodarstva ta prirodokoristuvannja. 70 p.

15. Hovanskij I.E., Mlynar E.V., Kavtaradze T.M., Koshkin M.A. (2014) Fundamental'nye issledovanija [Basic research]. № 9. pp. 345–348.

16. Goncharov S.,  Soroka N., Pryima O., Dubovyi A.  (2017) Distribution of trematodes Cryptocotyle Lühe, 1899 (Trematoda: Heterophyidae) in fi sh of the family Gobiidae in estuary waters and the Black Sea in Southern Ukraine. Vestnik zoologii. Vol. 51 (5). pp. 393–400.

17. Lichtenfels, J. R., Stroup, C. F. (1985) Eustrongylides sp. (Nematoda: Dioctophymatoidea): First Report of an Invertebrate Host (Oligochaeta: Tubifi cidae) in North America. Proc. Helminthol. Soc. Wash. Vol. 52 (2). pp. 320–323.

AttachmentSize
PDF icon goncharov_2_2019.pdf (231)5.06 MB