The Assessment of the Flood Hazard in 2016-2017 for the Ecological Condition of the Oxbow Ishimchik

About the authors:

Anastasia A. Novik, Undergraduate Student, P. P. Ershov Ishim Pedagogical Institute (branch), University of Tyumen; a.novik27@ya.ru

Olga A. Patsula, Undergraduate Student, P. P. Ershov Ishim Pedagogical Institute (branch), University of Tyumen; pacula141m@mail.ru

Natalya A. Reynlender, Undergraduate Student, P. P. Ershov Ishim Pedagogical Institute (branch), University of Tyumen; reynlender@bk.ru

Alexey A. Shavnin, Senior Lecturer, P. P. Ershov Ishim Pedagogical Institute (branch), University of Tyumen; shal_ishim@mail.ru

Abstract:

This article studies the ecological condition of the oxbow Ishimchik, which is located in the city of Ishim. The oxbow twice suffered from floods in 2016 and 2017. As a result of flood discharge in 2016, the process of anthropogenic eutrophication started, which led to a rapid flowering of water and the appearance of a characteristic putrefactive odor — in other words, to a general deterioration in the quality of water.

The reservoir also experienced a severe oxygen starvation in the winter of 2016-2017. The result was a massive extinction of fish, as shown by the results of the examined specimens of the species Carassius gibelio. In these samples, there were signs of poisoning with nitrogen-containing ions: scaling, flukes, and bleeding.

The key point in this study is the suspension of the anthropogenic eutrophication process, due to the impact of the flood in 2017 on the part of the Ishim river, the cause of which was the mass melting of snow on the territory of the Republic of Kazakhstan. These flood waters contained a small amount of biogenic elements and after mixing with water in the old man Ishimchik noticeably stopped the process of anthropogenic eutrophication.

References:

1. Baranov Ye. Ye. 2014. “Transformatsiya soyedineniy fosfora v vodnykh sistemakh na primere vodoyemov Volzhskogo basseyna” [Transformation of Phosphorus Compounds in Aqueous Systems on the Example of the Ponds of the Volga Basin]. In: Samarskaya Luka: problemy regional’noy i global’noy ekologii. Vol. 23, no 3, pp. 160-166. Tolyatti.
2. Kuznetsova M. A., Subbotina Yu. M. 2010. “Microbiologicheskoe samoocheshchenie vodoemov” [Microbiological Self-Purification]. In: Antropogennoe vozdeystvie na ecosistemy razlichnogo urovnya, pp. 142-150. Moscow: Publishing RGSU. 
3. Moiseenko T. I., Gashkina N. A. 2010. “Formirovanie himicheskogo sostava vod ozer v usloviyah izmeneniya okruzhayushchey sredy” [The Formation of Water Chemistry of the Lakes in a Changing Environment Wednesday]. Moscow: Nauka.
4. Naumenko M. A. 2007. Evtrofirovanie ozor i vodokhranilishch. Uchebnoye posobiye [Eutrophication Lakes and Reservoirs. Student Textbook]. Saint Petersburg: RGGMU.
5. Nikanorov A. M. 2001. Gidrohimiya: Textbook [Hydrochemistry: Student Textbook]. Saint Petersburg: Gidrometeoizdat.
6. Moiseyenko T. I. (ed.). 2012. Research Report no 11.G34.31.0036 of 25 November 2010 “Kachestvo vod v usloviyakh antropogennykh nagruzok i izmeneniya klimata v regionakh Zapadnoy Sibiri” [Water Quality Conditions of Anthropogenic Impact and Climate Change in the Regions of Western Siberia]. Tyumen: University of Tyumen.
7. PND F 14.1:2:4.112-97. 2011. Kolichestvennyj himicheskiy analiz vod. Metodika izmereniy massovoy kontsentratsii phosphat -ionov v pit`evyh, poverhnostnyh i stochnyh vodah fotometricheskim metodom s molibdatom ammonia [Quantitative Chemical Analysis of Waters. Measuring Technique of Mass Concentration of Phosphate Ions in Drinking Water, Surface Water, and Wastewater with Ammonium Molybdate Photometric Method]. Moscow. 
8. SanPin 2.1.4.1074-01. 2002. Pit’yevaya voda. Gigiyenicheski trebovaniya k kachestvu vody tsentralizovannykh sistem pit’yevogo vodosnabzheniya. Kontrol’ kachestva. Gigiyenicheskiye trebovaniya k obespecheniyu bezopasnosti sistem goryachego vodosnabzheniya [Drinking Water. Hygienic Requirements for Water Quality Drinking Water Supply Systems. Quality Control. Hygienic Requirements to Ensure the Safety of Hot Water Systems]. Moscow.
9. Henderson-Sellers B., Markland H. R. 1990. Umirayushchiye ozora. Prichiny i kontrol‘ antropogennogo evtrofirovaniya [Decaying Lakes. The Origins and Control of Cultural Eutrophication]. Saint Petersburg: Gidrometeoizdat.
10. Shavnin A. A., Panichev S. A. 2016. Teoreticheskie osnovy raspredeleniya microelementov v sistemakh “Voda-donnye otlozheniya” fonovykh ozer Zapadnoy Sibiri: monogr. [Theoretical Basis for the Distribution of Microelements in the Systems “Water-Bottom Sediments” of the Background Lakes of Western Siberia]. Ishim: P. P. Ershov Ishim Pedagogical Institute (branch), University of Tyumen.