Open AccessHydrobiocenoses of lake Tulos, Southwestern Karelia
Author(s) -
Yaroslav Kuchko,
Кучко Ярослав Александрович,
N. V. Ilmast,
Ильмаст Николай Викторович,
Tamara Kuchko,
Кучко Тамара Юрьевна
Publication year - 2019
Publication title -
samarskij naučnyj vestnik
Language(s) - English
Resource type - Journals
eISSN - 2782-3016
pISSN - 2309-4370
DOI - 10.17816/snv201981108
Subject(s) - zooplankton , benthic zone , littoral zone , abundance (ecology) , pelagic zone , environmental science , biomass (ecology) , phytoplankton , ecology , geography , trophic state index , water quality , diversity index , oceanography , fishery , nutrient , geology , species richness , biology
The following paper assesses the current state of the phyto- and zooplankton and benthic communities of Lake Tulos, which geographically is a part of the Green Belt of Fennoscandia. The lake is located on the territory of the planned National Park Tulos. The species diversity, the ratio of major taxonomic groups and the structure, abundance and biomass of predominant aquatic organism species in the littoral and pelagic zones of the lake were studied. According to the obtained results (the level of quantitative development and the ratio of phytoplankton species during the growing season 2018) the waters of Lake Tulos can be assigned to the third quality class, grade 3a (fairly clean), which corresponds to the -mesosaprobic zone by the saprobity scale. According to Pantle-Bukk saprobity index calculated on the basis of zooplankton, the lakes water can be attributed to oligosaprobic the 2nd class of quality, pure natural waters. Indices of abundance of macrozoobenthos correspond to the oligotrophic class, according to the ratio of its main groups, the lake belongs to the chironomid type of lakes. The reservoir has a high recreational potential, according to the ichthyofauna composition it belongs to the water bodies of the first fishery category. Lake Tulos is a reference water body convenient for environmental monitoring in near-border areas.