Izvestiya of Saratov University.

Chemistry. Biology. Ecology

ISSN 1816-9775 (Print)
ISSN 2541-8971 (Online)

For citation:

Mukhin I. A., Bolotova N. L., Voronin M. Y., Lopicheva O. G., Petukhova M. D. Mozambique Tilapia (Oreochromis mossambicus) bacterial-algae mats in the cooling pool of Novovoronezh NPP nutrition. Izvestiya of Saratov University. Chemistry. Biology. Ecology, 2022, vol. 22, iss. 3, pp. 302-312. DOI: 10.18500/1816-9775-2022-22-3-302-312

This is an open access article distributed under the terms of Creative Commons Attribution 4.0 International License (CC-BY 4.0).
Full text:
(downloads: 167)
Article type: 

Mozambique Tilapia (Oreochromis mossambicus) bacterial-algae mats in the cooling pool of Novovoronezh NPP nutrition

Mukhin Ivan A., Vologda State University
Bolotova Nataliya L., Vologda State University
Voronin Maksim Yu., Saratov State University
Lopicheva Ol’ga G. , Vologda State University
Petukhova Mariya D., Vologda State University

The formation of stable periphyton communities is undesirable for all types of hydrotechnical systems, especially functioning watercooling systems. To combat the development of biological fouling in the cooling ponds of nuclear power plants bioreclamation species are widely used, which include Mozambican tilapia. It was unintentionally brought into the cooling reservoir of the Novovoronezh nuclear power plant; however, it formed a stable and numerous population there. The food base for the fi sh population in the cooling pond is depleted due to diffi cult (sometimes extreme) environmental conditions, which can lead to competition for food items. Under these conditions, tilapia switches to feeding on bacterial-algal mats, which develop abundantly in the warm-water part of the reservoir. In areas eaten by tilapia, the biomass of fouling is reduced by one and a half times and the content of mineral substances decreases. The study of the contents of the intestines of tilapia made it possible to confi rm these observations, since representatives of the phytoperiphyton were found in the food bolus: cyanoprokaryotes, diatoms and green algae, for which even a taxonomic affi liation was established. The results of the research made it possible to clarify the mechanism o f integration of this southern species into the ichthyocenosis of the reservoir and its positive role in reducing biofouling.

  1. Mieszkin S., Martin-Tanchereau P., Callow M., Callow J. Effect of bacterial biofi lms formed on fouling-release coatings from natural seawater and Cobetia marina, on the adhesion of two marine algae // Biofouling. 2012. Vol. 28, № 9. P. 953–968. https://doi.org/10.1080/ 08927014.2012.723696
  2. Rao D., Webb J. S., Kjelleberg S. Microbial colonization and competition on the marine alga Ulva australis // Appl. Environ. Microbiol. 2006 Aug. Vol. 72, № 8. P. 5547–5555. https://doi.org/10.1128/AEM.00449-06
  3. Методические рекомендации по сбору и обработке материала при гидробиологических исследованиях на пресноводных водоемах. Зообентос и его продукция. Л. : ГосНИОРХ, 1983. 51 с.
  4. Определитель зоопланктона и зообентоса пресных вод Европейской России. Т. 1. Зоопланктон / под ред. В. Р. Алексеева, С. Я. Цалолихина. М. : Т-во науч. изд. КМК, 2010. 495 с.
  5. Правдин И. Ф. Руководство по изучению рыб. М. : Пищевая промышленность, 1966. 376 с.
  6. Животова Е. Н. Зоопланктон водных экосистем в зоне влияния Нововоронежской АЭС. Воронеж : Цифровая полиграфия, 2021. 166 с.
  7. Тетдоев В. В. Размножение и выращивание тиляпии в естественных водоёмах и в условиях индустриальных рыбоводных хозяйств. М. : Изд-во РГАЗУ, 2009. 102 с.
  8. Привезенцев Ю. А. Тиляпии (систематика, биология, хозяйственное использование). М. : ООО «Столичная типография». 2008. 80 с.
  9. Lim C., Webster C. D. Tilapia: Biology, Culture, and Nutrition Routledge. USA : CRC Press, 2006. 746 p.
  10. De Silva S. S., Subasinghe R. P., Bartley D. M., Lowther A. Tilapias as alien aquatics in Asia and the Pacifi c: A review // FAO Fisheries Technical Paper. 2004. 74 p. 
  11. Chervinski J. Environmental physiology of tilapias // ICLARM Conf. Manila, Philippines, 1982. Р. 119–128.
  12. Webster C. D., Chhorn L. Tilapia : Biology, Culture, and Nutrition. USA : CRC Press, 2006. 704 p.
  13. Иванчев В. П., Сарычев В. С., Иванчева Е. Ю. Миноги и рыбы бассейна Верхнего Дона // Труды Окского государственного природного биосферного заповедника. Вып. 28. Рязань : НП «Голос губернии», 2013. 275 с.