Epilithic lichen cover in assessing the quality of the coastal water environment in Karelia
УДК 582.292:581.5(470.22)
DOI:
https://doi.org/10.14258/pbssm.2021082Keywords:
Anthropogenic pollution, coastline, environmental quality, epilithic lichens, fresh waters, indicationAbstract
The paper summarizes the data obtained by analyzing the reaction of the coastal epilithic lichen cover tothe chemical parameters of water in reservoirs of different types and uses. The study was carried out on the shores of freshwater bodies (Lake Onega, Lake Ladoga, Lososinka, Suna rivers) with different anthropogenic pressures in the Republicof Karelia. At each place of study, the lichen cover was described at the survey sites (frame 10 x 20 cm) along the transectand water samples were taken for chemical analysis. The aim of the work is to identify indicators of the coastal epilithic lichen cover to indicate the quality of the aquatic environment and assess the state of coastal ecosystems. The lichen flora ofthe surveyed coasts of fresh water bodies has 53 species, the highest species diversity of lichens is characterized by placeswithout obvious sources of pollution – the Kivach reserve (29 species), the shores of Lake Ladoga (27 species) and the Botanical Garden of PetrSU (16 species), and in urban conditions ( Petrozavodsk), a large settlement (Yanishpole) and nearthe pulp and paper industry (Kondopoga), the number of lichen species is much lower (8, 5 and 4). Regression analysisshowed the dependence of the number of lichen species on the registration site on the concentration of phosphorus compounds in water (p < 0.05). A tendency to a decrease in species diversity and a decrease in the total coverage of lichens withan increase in nitrogenous compounds in water was noted. This made it possible to propose the epilithic lichen cover as anobject-indicator of the state of the coastal water environment under conditions of anthropogenic pollution of water bodies.
Downloads
References
Климат Карелии: изменчивость и влияние на водные объекты и водосборы. Отв. ред. Н. Н. Филатов. – Петрозаводск: изд-во КарНЦ РАН, 2004. – 224 с.
Костицина М. В., ПауковА. Г. Литофильные лишайники на силикатных горных породах в условиях антропогенного загрязнения // Экология в меняющемся мире: Материалы конф. молодых ученых (г. Екатеринбург, 24– 28 апреля 2006 г.). – Екатеринбург: «Академкнига», 2006. – С. 93–96.
Онежское озеро. Экологические проблемы. / Отв. ред. Н. Н. Филатов. – Петрозаводск: изд-во КарНЦ РАН, 1999. – 293 с.
Север. Реалии. URL: https://www.severreal.org/a/30689601.html (дата обращения 10.04.2021)
Сонина А. В., Марковская Е. Ф. Инновационный подход в лихеноиндикации с использованием эпилитных лишайников для оценки состояния прибрежно-водной среды // Инновации и инвестиции, 2013. – № 1. – С. 218–221.
Тарасова В. Н., Андросова В. И., Сонина А. В. Лишайники. Часть II. Физиология, экология, лихеноиндикация. Учебное пособие. – Петрозаводск: изд-во ПетрГУ, 2012. – 268 с.
