ОСОБЕННОСТИ РАЗВИТИЯ МИКРОБНЫХ СООБЩЕСТВ В НИЖНЕМ ТЕЧЕНИИ Р. КАЗАНКИ (Г. КАЗАНЬ) ПОД ВЛИЯНИЕМ ГИДРОХИМИЧЕСКИХ УСЛОВИЙ
DOI:
https://doi.org/10.24852/2411-7374.2024.2.42.49Ключевые слова:
бактериопланктон, бактериобентос, гидрохимические показатели, денитрифицирующие бактерии, нитрифицирующие бактерии, река КазанкаАннотация
Изменения численности микробных сообществ в нижнем течении р. Казанки в зависимости от гидрохимических факторов среды исследовались летом 2022 г. Установлено, что качество воды по микробиологическим показателям оценивается как «слабозагрязненная» (II класс). Экологическое состояние донных отложений на основе показателей бактериобентоса оценивается как «норма» ‒ «состояние риска». Наибольшее влияние на развитие бактериопланктона оказывают концентрации азотных соединений, что указывает на вовлеченность водных микроорганизмов в круговорот азота в речной экосистеме. Изменения жесткости воды, концентрации гидрокарбонатов, кальция и магния также отражаются на структуре микробных сообществ.
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