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All Journal Biodiversitas Journal of Biological Diversity
IRINA V. MASHKOVA
Department of Chemistry, South Ural State University. 76 Lenin Prospect, 454080 Chelyabinsk, Russia.
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology

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Phytoplankton biodiversity and its relationship with aquatic environmental factors in Lake Uvildy, South Urals, Russia ANASTASIYA M. KOSTRYUKOVA; IRINA V. MASHKOVA; TATYANA G. KRUPNOVA; NIKITA O. EGOROV
Biodiversitas Journal of Biological Diversity Vol. 19 No. 4 (2018)
Publisher : Society for Indonesian Biodiversity

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13057/biodiv/d190431

Abstract

Kostryukova AM, Mashkova V, Krupnova TG, Egorov NO. 2018. Phytoplankton biodiversity and its relationship with aquatic environmental factors in Lake Uvildy, South Urals, Russia. Biodiversitas 19: 1422-1428. Lake Uvildy is one of the largest and the most unique of the South Ural region lakes. This mountain deep lake, which has the status of a natural monument. The purpose of this paper was to study the phytoplankton community structure and the aquatic environmental factors in Lake Uvildy. The phytoplankton samples were collected from 5 sites of Lake Uvildy, then filtered through the plankton net and were preserved in 5% formalin. Species were identi?ed using the handbooks by Sladecek, Yarushina, and Al-Kandari. Water samples were taken for water quality analysis. The several physicochemical parameters were measured in situ by a Portable Meters (Multitest IPL-513 and Multitest KSL-111, Semico Ltd, Russia, Novosibirsk). The others parameters were measured in the laboratory of the Department of Chemistry of the South Ural State University according to the standard methods. The sampling was made during the vegetation period in June-July 2014. The water quality was evaluated using the Shannon biodiversity index. A total of 38 species (11 phyla, 31 genera), including 9 species of Chlorophyta, 13 species of Bacillariophyta, 9 species of Cyanophyta, 4 species of Euglenophyta, 2 species of Chrysophyta, 1 species of Dinophyta, were identified. The phytoplankton species in the lake were mainly represented by Cyanophyta and Bacillariophyta. There were 5 dominant species: Fragilaria crotonensis, Asterionella formosa, Dolichospermum lemmermannii, Microcystis aeruginosa, and Coenococcus planktonicus. The Shannon index value comprised 1.27-2.21. According to the saprobity index values (1.63-2.35), the water in the late is evaluated as satisfactorily clean. Physico-chemical parameters were factors driving the change in phytoplankton community composition in Lake Uvildy.
Short Communication: Mollusks biodiversity of Lake Sevan, Armenia IRINA V. MASHKOVA; TATYANA G. KRUPNOVA; ANASTASIYA M. KOSTRYUKOVA; LAURA J. HARUTYUNOVA; HOVHANNISYAN S. VARUZHAN; NIKITA E. VLASOV
Biodiversitas Journal of Biological Diversity Vol. 19 No. 4 (2018)
Publisher : Society for Indonesian Biodiversity

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13057/biodiv/d190442

Abstract

Mashkova IV, Krupnova TG, Kostryukova AM, Harutyunova LJ, Varuzhan HS, Egorov NO. 2018. Short Communication: Mollusks biodiversity of Lake Sevan, Armenia. Biodiversitas 19: 1509-1513. The paper considers mollusks biodiversity in the freshwater lakes of Lake Sevan, Armenia. Lake Sevan is the largest water body in Armenia and one of the largest freshwater lakes in Eurasia. Since 1930 it has been actively used for irrigating Ararat plain and in hydropower. So, its water level fell by 20 m, and its volume became 40% less. Since mid-2000 when two tunnels had been built water level started to grow. For the last 6 years, water level was reported to grow. As a result of our study, 11 aquatic mollusks species (10 gastropod and 1 bivalve taxa) were currently found living in the Sevan lake. We found Lymnaea stagnalis (Linnaeus, 1758), Radix auricularia (Linnaeus, 1758), R. tumida (Held, 1836), R. balthica (Linnaeus, 1758), R. lagotis (Schrank, 1803), Galba truncatula (O. F. Müller, 1774), Planorbis planorbis (Linnaeus, 1758), Bathyomphalus contortus (Linnaeus,1758), Gyraulus acronicus (Férussac, 1807), Valvata piscinalis (O. F. Müller, 1774), Euglesa casertana (Poli, 1791). Lymnaeidae represented the largest number of species. The most abundant species was Lymnaea stagnalis (Linnaeus, 1758).
Co-Authors ANASTASIYA M. KOSTRYUKOVA HOVHANNISYAN S. VARUZHAN LAURA J. HARUTYUNOVA NIKITA E. VLASOV NIKITA O. EGOROV TATYANA G. KRUPNOVA