Ecological and geographic diversity of phytomicrobenthos in water bodies and streams within the Danube river Kiliya delta

Authors

  • E. Sh. Koziychuk Institute of Hydrobiology, National Academy of Sciences of Ukraine , Інститут гідробіології НАН України

DOI:

https://doi.org/10.31548/dopovidi2019.02.002

Keywords:

phytomicrobenthos, the Kiliya Delta of the Danube River, aquatic ecosystems, environmental conditions, indicator species

Abstract

Phytomicrobenthos is an integral part of aquatic ecosystems biota. It occupies one of key places in the autotrophic link functioning. Water bodies and streams within the Danube River Kiliya Delta are marked by various specific habitats giving rise to high biological diversity of plant communities, including benthic algae, which are important indicators of environmental conditions. The aim of this research was to reveal the specifics of ecological and geographic diversity of phytomicrobenthos in the Danube River Kiliya Delta water bodies and streams. Phytomicrobenthos studies were carried out in 2010–2013, during spring, summer and autumn in different water ecosystems within the Danube River Kilia Delta: streams (the delta branches downstream of Vylkove City: the Vostochnyi Branch, the Bystryi Branch, the Ochakovskiy Branch, the Belgorodskiy Branch, the Otnozhnyi Old Branch, and in freshwater (oligohaline) bays – Potapov Kut Bay, Bystryi Kut Bay, the isolated Anankin Kut Lake and brackish bays, which are open from the seaside – Solenyi Kut Bay, Badyka Kut Bay and Shabosh Kut Bay.

According to their ecological and geographic characteristics, the majority of benthic algae species from the Danube River Kiliya Delta water ecosystems are cosmopolite species; according to habitat association – benthic and planktonic-benthic; in relation to water mineralization – indifferent, halophilous and mesohalobic species; in relation to pH – alkaliphilous and indifferent species.  Species associated with slow-flowing waters and species indifferent to temperature conditions are very widespread as well. Most of the species were β-mesosaprobic according to organic pollution tolerance. The obtained data can be used for monitoring of the Danube River Kiliya Delta aquatic ecosystems, predicting possible changes and water quality assessment.

References

Barinova S. S., Medvedeva L. A., Anisimova O. V. Bioraznoobraziye vodorosley – indikatorov okruzhayushchey sredy. Tel’-Aviv: 2006. 498 s.

Vladimirova K. S. Fitomikrobentos Dnepra, ego vodokhranilishch i Dneprovsko-Bugskogo limana. Kiyev: Naukova dumka, 1978. 230 p.

Diatomovyy analiz / Pod red. A.N. Krishtofovicha. Leningrad: Gos. izd-vo geol. lit-ry, 1949. 240 p.

Dunay i pridunayskiye vodoyemy v predelakh SSSR / Pod red. YA. V. Rolla. Tr. In-ta gidrobiologii AN USSR, 1961. № 36. 311 p.

Metodi gіdroyekologіchnikh doslіdzhen’ poverkhnevikh vod / Za red. V. D. Romanenka. Kiїv: LOGOS, 2006. 408 p.

Oksiyuk O. P., Davydov O. A., Karpezo YU. I. Otsenka ekologicheskogo sostoyaniya vodnykh ob”yektov po fitoplanktonu i fitobentosu (na primere ukrainskogo uchastka Dunaya). Gidrobiologicheskiy zhurnal. 2009. 45. №2. P. 3–12. https://doi.org/10.1615/HydrobJ.v45.i2.20

Raznoobraziye vodorosley Ukrainy / Pod red. S. P. Vassera, P. M. TSarenko. Al’gologiya. 2000. T. 10. № 4. 309 p.

Afanasiev O., Sandu K., Zorina-Sakharova K. Ye., Manturova O. V., Huleikova L. V., Diachenko T. M., Savytskyi O. L., Makovskyi V. V., Abramiuk I. I., Dumitrache A., Ionika D. / Za zah. red. k. b. n., st. n. s. A. V. Liashenka. Kyiv: Kafedra, 2018. 312 p.

Phytomicrobenthos dynamics in water bodies of various types in the Kiliya delta of the Danube river depending on some ecological factors / Hydrobiological Journal. 2016. Vol. Unifitsirovannyye metody issledovaniya kachestva vody. Atlas saprobnykh organizmov. Moskva. Izd-vo S•EV, 1977. 227 p.

Hydrobiocenoses of the transboundary sections of the Ukrainian and Romanian parts of the Danube delta: Hidrobiotsenozy transkordonnykh dilianok ukrainskoi ta rumunskoi delty Dunaiu: monohrafiia. A. V. Liashenko, S52. № 3. P. 3-14.

Published

2019-04-26

Issue

Section

Biology, biotechnology, ecology