Izvestiya of Saratov University.
ISSN 1816-9775 (Print)
ISSN 2541-8971 (Online)


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

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.

Состояние высшей водной растительности и фотосинтетических пигментов тростника южного (Phragmites australis) водоема-охладителя Балаковской АЭС

Высшая водная растительность водоема-охладителя Балаковской АЭС в основном представлена одноярусными монодоминантными (Phragmites australis) фитоценозами. Продукционные характеристики фитоценозов тростника южного и состояние его фотосинтетических пигментов свидетельствуют об эффективной адаптации к существованию в антропогенно трансформированной экосистеме водоема-охладителя Балаковской АЭС.

Current State of the Higher Aquatic Vegetation of the Balakovo NPS Cooling Reservoir under the Influence of Herbivorous Fishes

The article presents data on the assessment of the state of higher aquatic plants cooling reservoir Balakovo NPS under the influence of biomeliorative fishes. It was revealed that the species diversity of higher aquatic vegetation for the period of study has sharply decreased from 34 (2009) to 12 species (2015). The dominant species, which defines the image of plant communities, is common reed (Phragmites australis (Cav.) Trin. Ex Steud). Reed communities are rated as very highly productive in terms of net primary production.