pdf35

Ribogospod. nauka Ukr., 2019; 4(50): 74-86
DOI: https://doi.org/10.15407/fsu2019.04.074 
УДК [639.371.2:639.3.06]:597-14

Some morphological peculiarities of the sterlet (Acipenser ruthenus Linnaеus, 1758) in the conditions of intensive rearing in floating cage systems

A. Tretiak, This email address is being protected from spambots. You need JavaScript enabled to view it. , Institute of Fisheries NAAS, Kyiv
M. Pashko, This email address is being protected from spambots. You need JavaScript enabled to view it. , Institute of Fisheries NAAS, Kyiv
Ye. Kolos, This email address is being protected from spambots. You need JavaScript enabled to view it. , Institute of Fisheries NAAS, Kyiv

Purpose. To study peculiarities of the sterlet in the process of intensive rearing of their replacement and brood groups in floating cages installed in water bodies with natural temperature regime.

Methodology. The material for the study were age-3+ and age-5+-6+ sterlet reared at the industrial type fish farm “Oseter” LLC of Kyiv region located in the forest-steppe physical-geographical zone of Ukraine. The experimental groups of fish were reared in 24 m2 (4x6 m) cage chambers submerged in water by 2.5-3.0 m. Measurements of alive fish were performed in different seasons of 2019 using schemes recommended for measuring sturgeons. Twelve plastic features of the sterlet were studied, weights of individual fish and indexes of body built were determined. Fulton’s conditions indexes were calculated with the use of standard lengths (l) and total lengths (L). Studies of physicochemical parameters of water medium were performed using generally accepted fisheries and hydrochemical methods.

Findings. Individual patterns in exterior features of the sterlet of different ages were detected, where females exceeded males by mean values of absolute and relative fish body depths, thickness and girth. It was found that the mean values of the relative distance from the anal fin to the end of middle rays of the caudal fin were characterized by sufficient stability. It was noted that the gonad maturation stage should be taken into account for a comparative analysis of morphobiological parameters of sterlet females and males when performing studies within one fish generation in the same periods of the year. A complex of methods combined with morphological studies with ultrasonography and other modern techniques is recommended for early vital sex determination in sturgeons.

Originality. Some morphological peculiarities of brood groups of the sterlet, rearing of several generation of which was performed in the conditions of intensive aquaculture in a limited space of cages, were studied.

Practical value. The results of the studies can be interesting for the development of selective breeding work in sturgeon aquaculture and contribute to the development of methods for early vital determination of the sex in sturgeons.

Key words: sterlet, industrial aquaculture, morphometric parameters, selective breeding works.

REFERENCE

  1. Kol'man, R. (2012). Iskusstvennoe razmnozhenie osetrovykh ryb. Problemy proizvodstva posadochnogo materiala ischezayushchikh populyatsiy osetrovykh ryb. Ol'shtyn: MIR DRUK, 31-43.
  2. Kozlov, V. I., & Kozlov, A. V. (2011). Osetrovodstvo. Moskva: MGUTU.
  3. Konchits, V. V., & Mamedov, R. A. (2011). Sostoyanie i perspektivy vosstanovleniya chislennosti sterlyadi v vodoemakh Belarusi. Zberezhennya genofondu ta vіdnovlennya populyatsіy tsіnnikh vidіv rib: Mіzhnar. nauk. konf.: mater. Kyiv: DІA, 48-58.
  4. Podushka, S. B. (2000). Remontno-matochnye stada v osetrovodstve. Problemy sovremennogo tovarnogo osetrovodstva: Perv. nauch.-prakt. konf.: tez. dokl. Astrakhan', 78-83.
  5. Podushka, S. B., & Chebanov, M. S. (2007). Ikorno-tovarnoe osetrovodstvo v Kitae. Nauchno-tekhnicheskiy byuleten' laboratorii ikhtiologii INENKO, 13, 5-15.
  6. Podushka, S. B., & Armyaninov, I. V. (2008). Opyt formirovaniya i ekspluatatsii ikorno-tovarnogo stada sterlyadi v Karmanovskom rybkhoze. Osetrovoe khazyaystvo, 1, 2-5.
  7. Podushka, S. B. (2009). Dlitel'noe sokhranenie ostatochnoy ovulirovannoy ikry v polosti tela sterlyadi. Rybnoe khozyaystvo, 1, 60-61.
  8. Sherman, I. M., Korniienko, V. O., & Shevchenko, V. Yu. (2006). Aktualnist ta peredumovy domestykatsii predstavnykiv rodyny osetrovykh v umovakh pivdnia Ukrainy. Tavriiskyi naukovyi visnyk, 44, 145-154.
  9. Yazdani, M. A., & Vlasov, V. A. (2006). Rost i morfologicheskaya kharakteristika lenskogo osetra (Acіpenser baerii Brand) v zavisimosti ot massy tela. Izvestiya TSKhA, 4, 94-99.
  10. Konchits, V. V., Mamedov, R. A., & Savonchik, A. L. (2011). Morfometricheskie pokazateli kak kriteriy sortirovki po polu remontno-matochnogo stada lenskogo osetra vnutri odnoy generatsii. Rybohospodars'ka nauka Ukrainy, 4, 80-87.
  11. Tretiak, O. M., et al. (2010). Stan zapasiv osetrovykh ryb ta rozvytok osetrovoi akvakultury v Ukraini. Rybohospodarska nauka Ukrainy, 4, 4-22.
  12. Tretiak, O. M., et al. (2019). Do pytannia rozvytku osetrivnytstva v Ukraini u suchasnykh umovakh. Osnovni zavdannia shchodo naukovo-tekhnichnoho zabezpechennia rozvytku rybnoho hospodarstva Ukrainy: nauk.-prakt. seminar: mater. Kyiv: Politekhnika, 20-31.
  13. Vasil'eva, L. M. (2000). Biologicheskie i tekhnologicheskie osobennosti tovarnoy akvakul'tury osetrovykh v usloviyakh Nizhnego Povolzh'ya. Astrakhan': Bios, 139-148.
  14. Pashko, M. M., Tretiak, O. M., & Kolos, O. M. (2018). Rezultaty eksperymentiv zi shtuchnoho otrymannia ovulovanoi ikry vid plidnykiv sterliadi Acipenser ruthenus Linnaeus u netradytsiini stroky. Rybohospodarska nauka Ukrainy, 2, 81-88. https://doi.org/10.15407/fsu2018.02.081 
  15. Pashko, M. M., & Tretiak, O. M. (2018). Ekonomichna efektyvnist shtuchnoho otrymannia ovulovanoi ikry sterliadi (Acipenser ruthenus Linnaeus, 1758) z kombinovanym vykorystanniam industrialnykh tekhnolohii. Rybohospodarska nauka Ukrainy, 4, 68-78. https://doi.org/10.15407/fsu2018.04.068 
  16. Pashko, M. M., Tretiak, O. M., & Kolos, O. M. (2019). Do pytannia vyroshchuvannia plidnykiv sterliadi (Acipenser ruthenus Linnaeus) u plavuchykh sadkakh za pryrodnoi temperatury vody Lisostepu Ukrainy. Rybohospodarska nauka Ukrainy, 1, 48-59.
  17. Krylova, V. D., & Sokolov, L. I. (1981). Morfologicheskie issledovaniya osetrovykh ryb i ikh gibridov (Metodicheskie rekomendatsii). Moskva: VNIRO.
  18. Pravdin, I. F. (1966). Rukovodstvo po izucheniyu ryb. Moskva: Pishch. promyshlennost'.
  19. Alekin, O. A., Semenov, A. D., & Skopintsev, B. A. (1973). Rukovodstvo po khimicheskomu analizu vod sushi. Leningrad: Gidrometeoizdat.
  20. Voda rybohospodarskykh pidpryiemstv. Zahalni vymohy ta normy. (2006). SOU – 05.01.37-385:2006. Kyiv: Ministerstvo ahrarnoi polityky Ukrainy.
  21. Plokhinskiy, N. A. (1969). Rukovodstvo po biometrii dlya zootekhnikov. Moskva: Kolos.
Home2019№ 4/2019 (50)2019_04-074_086-Tretyak-ukr