Ecological and Physiological Patterns of Selenium Migration within the Volga River Ecosystem
The article presents the results of selenium migration analysis within river ecosystem. Maximal concentration of selenium was observed near Tomakovsky and Nazarovsky ravines within Saratov territory. The concentration of this microelement at the right river bank was slightly higher than at the left bank. The concentration of selenium in bottom soil ranged from 0.062–0.099 μg/g. Maximal concentration of microelement was found in clasping-leaved pondweed. Selenium concentration in fish bodies depends on their species and nutrition. Maximal concentration of microelement was found in crucian carps, and minimal – in rudds.
 Lu, Y., Zhang, A., Li, C., Zhang, P., Li, T. (2013). The link between selenium binding protein from Sinonovacula constricta and environmental pollutions exposure. Journal Fish & Shellfish Immunology, vol. 35, no. 2, pp. 271–277.
 Pudovkin, N.A., Salautin, V.V., Garipov, T.V., Karimova, R.G., Salautina, S.E. (2018). Seasonal changes of free-radical initiated processes in cyprinids from the middle Volga river basin. Journal Bulgarian Journal of Veterinary Medicine, vol. 21, no. 4, pp. 478–483.
 Rene Buesa, J. (1990). Light assimilation curves of some tropical macroscopic marine plants. Journal Aquatic Botany, vol. 37, no. 4, pp. 315–324.
 Thresher, R.E. (1999). Elemental composition of otoliths as a stock delineator in fishes. Journal Fish & Shellfish Immunology, vol. 43, no. 1--3, pp. 165–204.
 Zheng, L., Feng, L., Jiang, W.D., Wu, P., Liu, Y. (2018). Selenium deficiency impaired immune function of the immune organs in young grass carp (Ctenopharyngodon idella). Journal Fish & Shellfish Immunology, vol. 77, pp. 53–70.
 Zheng, L., Jiang, W.-D., Feng, L., Wu, P., Liu, Y. (2018). Selenium deficiency impaired structural integrity of the head kidney, spleen and skin in young grass carp (Ctenopharyngodon idella). Journal Fish & Shellfish Immunology, vol. 82, pp. 408–420.