Tatyana Konchina, Viola Sidorskaya, Svetlana Oparina, Alexander Rostunov, Elena Baronova, Elena Zhestkova

Last modified: 05.06.2017


The ecological state of small rivers that define the water regime of the territory, as well as the water supply of larger rivers, the quality of their waters is a matter of a serious concern. The ecosystems of watercourses in urban areas exposed to pollution by industrial and domestic wastes are under the maximum anthropogenic load. Bioindicative methods, which let to assess directly the status of aquatic ecosystems and their individual components, occupy an important place in the system of ecological monitoring of water bodies. Plants respond to toxicants in an aquatic habitat by the abnormality of biosynthesis of chlorophyll, carotenoids and other pigments, change of mineral balance, phytohormones, which leads to a change in their reproductive differentiation.

In this regard, water quality assessment was carried out on the basis of chemical analysis and bioindication concerning Sagittaria sagittifolia populations in the upper and middle stream ways of the river Tyosha flowing through the Nizhny Novgorod region.

The article presents the results of some organoleptic and chemical parameters such as pH level of overall hardness, concentration of nitrates and nitrites, ions of ammonium, phosphates, mercury, concentration of oxygen and carbon dioxide in the water. It was detected that there were exceeding quantities of ammonium ions, nitrite ions, phosphates in the water of all ranges of the river Tyosha, and also high content of iron in the downstreams of the river. The findings suggest that the reproductive structure of arrowhead inflorescences can serve as a bio-indicator of the degree of water pollution. The harder the environmental conditions of the plant habitat in the water body, the more intensive is a shift in the ratio of flowers to the feminine side. It has been shown that due to the deterioration of environmental conditions, the number of compound inflorescences of the arrowhead and the numbers of whorls in them decrease and, on the other hand, there is an increase in the percentage of plants with simple typical inflorescences. A credible shift in the reproductive ratio of arrowhead inflorescences to the female side is spotted on the downstream river station near Lukoyanov and industrial community Shatky, where the complex of environmental factors for its growth is the least favorable. It was established that anthropogenic pollution of the river has a negative effect on the reproductive sphere of Sagittaria sagittifolia, causing a reduction in pollen fertility, which is confirmed by the chemical analysis of water.

On the basis of the studies the assessment of the ecological status of the water in the Tyosha river was given.



anthropogenic load; bio-indication; bio-indicator; pollen fertility; sex differentiation; reproductive structure


[1] Alekseyev S.V. Ecological practice. / S.V. Alekseyev, N.V. Gruzdev, А.G. Muravyova, E.V. Grushina – Moscow: JC MDS, 1996, – 192 p.

[2] Bessonova V.P. Influence of environmental pollution on male fertility of decorative flower plants / V.P. Bessonova, L.M. Fendyur, T.N. Peresypkina // Bot. journal. – 1997. – V. 82. – № 5. pp. 38 – 45.

[3] Vavilov YU.L. Populational criteria of water quality assessment of small rivers of urban territories with the help of biological test-objects // Populations in space and time: Mat. VIII AllRus. Population seminar – N. Novgorod: NSU named after N.I. Lobachevsky, 2005, pp. 41 – 42.

[4] Geodakyan V.A. Genetic chromosomes: what are they for? (A new concept) // Rep. Academy of Sciencies. 1996. v. 346, №4. pp. 565 – 569.

[5] Zhatkov A.I. Influence of pre-sowing irradiation of corn on the ratio of male and female flowers and productivity of cucumbers and hemp. / A.I. ZHatkov, G.A. Zhatkov // Col. scient. th. Kharkov. SHI, 1984, V. 310. pp. 64 – 68.

[6] Ilyin M.YU. The results of bioindicative studies of small rivers GPBZ «Kerzhenskij» of Nizhny Novgorod region. M.YU. Ilyin, I.A. Kudrin, G.V. SHurganova, T.V. Kuklina // Works of the third international scientific- practical conference of young scientists «Indication of environment status: theory, practice, education», 17 – 19 april 2014, pp. 97 – 100.

[7] Konchina T.A. Combined influence of pre-sowing γ – radiation and the conditions of cultivation on the genetic structure and some biological features of spinach // Dep. In VINITI 07.01., № 1728 – 2001.

[8] Konchina T.A. Opportunities of using the pollen quality of plants in bioindication of water bodies / Actual problems of humanitarian research and science. № 06(65) June 2014. part. 1. pp. 67 – 69.

[9] Pausheva Z.P. Practical work on  plant cytology. Moscow: Agropromizdat, 1988. p. 148.

[10] List of standards of water quality of water bodies of fish industry, including MAC of harmful substances in waters of water bodies of fish industries / Printed order of Rusfishing 18 Jan. 2010 . №30 «About the standards of water quality of water bodies of fish industry, including MAC of harmful substances in waters of water bodies.

[11] Polosina T.P. Influence of genetic structure of Old-World arrowhead inflorescence on the viability of pollen // Ecological research and problems of education in European regions of Russia / Mat. AllRus. Scientif. – practic. conf. Arzamas, 5 – 7 Oct. 2000с, 2000. pp. 29 – 31.

[12] Sadchikov A.P. Ecology of coastal aquatic vegetation / AP Sadchikov, MA Kudryashov. NIA-Nature, REFIA, 2004. pp. 27 – 30.

[13] Sidorsky A.G.Evolution of genetic organization in flowering plants - Nizhny Novgorod: Volga-Vyatka Book. Publishing House, 1991, 210 p.

[14] Sidorsky A.G. The use of bio-indicators to assess the ecological status of rivers Nizhny Novgorod region // Ecological-geographical problems of the Volga-Vyatka region – N. Novgorod, 1994, pp.111 – 121.

[15] Tkachev B.P. Small rivers: the current state and environmental problems. Analytical Review. / B.P. Tkachev, V.I. Bulatov - Novosibirsk, 2002, 113 p.

[16] Fedorov A.I. Workshop on ecology and environmental protection. / A.I. Fedorov, A.N. Nicholas – Moscow, humanity ed. VLADOS Centre, 2001, 288 p.

[17] G.V. Shurganova. Water quality assessment of small and medium rivers of the Volga on the basis of the analysis of indicator species of zooplankton / G.V. Shurganova, M.L. Tarbeev, A.V. Golubev, A.A. Tarasova // Water: chemistry and ecology – 2011, №10. pp. 87 – 92.

[18] Cox R. M. Sensitivity of forest plant reproduction to longrange transported air pollutants: the effects of wet deposited acidity and copper on reproduction of Populus tremunloides // New. Phytol. – 1988. – V. 110. – №1. – pp. 33 – 38.

[19] Zhestkova E.Specifics of educational activity antimotivation in future teachers subject to the training period /  Assel Bakirovna Akpayeva, Natalia Valentinovna Ivanova, Tatiana Ivanovna Luchina, Elena Viktorovna Minaeva, Elena Alexandrovna Zhestkova // International Review of Management and Marketing. – 2016. - №3. – p.265-259.