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Title: CYANOTOXINS AS A POSSIBLE CAUSE OF FISH AND WATERFOWL DEATH IN THE KAZANKA RIVER (RUSSIA)
CYANOTOXINS AS A POSSIBLE CAUSE OF FISH AND WATERFOWL DEATH IN THE KAZANKA RIVER (RUSSIA)

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N. Stepanova;O. Nikitin;V. Latypova;T. Kondratyeva
10.5593/sgem2018/5.1/S20.030
1314-2704
978-619-7408-46-1
English
18
5.1
Ecology and Environmental Protection
On August 2016 in the Kazanka River (the tributary of the Volga River) was the mass mortality of fish (gibel carp Carassius gibelio) and waterfowl (mallard Anas platyrhynchos). Investigation of the causes of mortality showed that during this period the mass development of phytoplankton was reported (number 43.9-83.1 million cells/L and biomass in the interval 2.20-8.12 mg/L). Biomass of the group of blue-green algae was 0.76-3.25 mg/L. Planktolyngbya limnetica (Lemm) Kom.-Legn. et Cronb (94.6 % of the number) and Aphanizomenon flos-aquae (L.) Ralfs. (70.2 % of the number) were the dominant species on various area of the river. The content of cyanotoxins in water according to the results of ELISA was 1.4-12.1 ?g/L (microcystins) and 0.057-0.294 ?g/L (anatoxin-a). Content of microcystins (1.96-3.16 ?g/kg) and anatoxin-a (1.56-5.21 ?g/kg) in fish and duck muscles were determined. Chemical analysis of the river water showed a high content of dissolved oxygen (10.0-12.1 mg/L); all chemical parameters were below the water quality standards. Thus, the probable cause of the death of fish and ducks in the Kazanka River on August 2016 was cyanotoxins, produced by blue-green algae.
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https://www.sgem.org/index.php/jresearch-article?citekey=Stepanova201820229236
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18th International Multidisciplinary Scientific GeoConference SGEM 2018
18th International Multidisciplinary Scientific GeoConference SGEM 2018, 02-08 July, 2018
Proceedings Paper
STEF92 Technology
International Multidisciplinary Scientific GeoConference-SGEM
Bulgarian Acad Sci; Acad Sci Czech Republ; Latvian Acad Sci; Polish Acad Sci; Russian Acad Sci; Serbian Acad Sci & Arts; Slovak Acad Sci; Natl Acad Sci Ukraine; Natl Acad Sci Armenia; Sci Council Japan; World Acad Sci; European Acad Sci, Arts & Letters; Ac
229-236
02-08 July, 2018
website
cdrom
1321
blue-green algae; cyanotoxins; waterfowl and fish mortality; ELISA.