Abstract
Data on the initial stage of macrozoobenthos formation in the Taishir and Durgun reservoirs in western Mongolia in 2010–2015 have been generalized. A taxonomic list of macrozoobenthos is presented; 15 species have been recorded in Mongolia for the first time. In the Durgun Reservoir, the formation of bottom sediments and communities of invertebrates in the near-dam part is accelerated due to the water-flow transport of reed beds and invertebrates from Lake Khar-Us. The macrozoobenthos in the Taishir Reservoir is formed first due to consumers of terrigenous organic matter (decaying terrestrial vegetation and soils), and then by inhabitants of sapropelic mud; complexes of filter feeders, Spongilla lacustris (L.), are formed in the profundal zone. The process of macrozoobenthos development in the reservoir is similar to that in lowland reservoirs. After the construction of the reservoir, quantitative characteristics of macrozoobenthos increased downstream of the dam in the Dzabhan River and rheophilic species were replaced by limnophilic ones.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
References
Volga i ee zhizn’ (Volga River and Its Life), Leningrad: Nauka, 1978.
Ivanov, V.K., Trophic structure, food webs of macrozoobenthos of littoral zone of a shallow lake, and their spatiotemporal differences on the scale of two stations, Usp. Sovrem. Biol., 1999, vol. 119, no. 5, pp. 504–510.
Ioffe, Ts.I., The method of studying the drift of benthic organisms by river and its role in populating a reservoir, Izv. Gos. Nauchno-Issled. Inst. Ozern. Rechn. Rybn. Khoz., 1949, vol. 29, pp. 96–105.
Mendsaihan, B., Dulmaa, A., Krylov, A.V., et al., Formation of the lake-type ecosystem in semidesert zone: Tayshir Reservoir in the Zavkhan River (Western Mongolia), Arid Ecosyst., 2016, vol. 6, no. 3, pp. 213–219.
Prokin, A.A., Macrozoobenthos at the beginning of the 21st century, in Limnologiya i paleolimnologiya Mongolii (Limnology and Paleolimnology of Mongolia), Moscow, 2014, vol. 60, pp. 170–185.
Razumovskii, S.M., Zakonomernosti dinamiki biotsenozov (Patterns of Dynamics of Biocenoses), Moscow: Nauka, 1981.
Skal’skaya, I.A., Zooperifiton vodoemov basseina Verkhnei Volgi (Zooperiphyton of Water Bodies of the Upper Volga River Basin), Rybinsk: Dom Pechati, 2002.
Skal’skaya, I.A., Bakanov, A.I., and Flerov, B.A., Features of formation of periphyton and benthic communities in the Volga reservoirs (review), Biol. Vnutr. Vod, 2005, no. 1, pp. 3–10.
In-Depth Review of Energy Efficiency Policies and Programmes: Mongolia, Brussels: Energy Charter Secretariat, 2011.
Author information
Authors and Affiliations
Corresponding author
Additional information
Original Russian Text © A.A. Prokin, 2018, published in Biologiya Vnutrennykh Vod, 2018, No. 2.
Rights and permissions
About this article
Cite this article
Prokin, A.A. Initial Stage of Macrozoobenthos Formation in Reservoirs of Western Mongolia. Inland Water Biol 11, 161–172 (2018). https://doi.org/10.1134/S1995082918020189
Received:
Published:
Issue Date:
DOI: https://doi.org/10.1134/S1995082918020189