Transactions of Papanin Institute for Biology of Inland Waters RAS Transactions of Papanin Institute for Biology of Inland Waters RAS Труды Института биологии внутренних вод имени И.Д. Папанина Российской академии наук 0320-3557 2712-8377 93329 10.47021/0320-3557-2025-7-19 Без рубрики Without rubric Без рубрики SPATIAL VARIABILITY OF THE INTENSITY OF MERCURY ACCUMULATION IN THE MUSCLES OF DIFFEREENT-SIZED PERCH FROM THE RYBINSK RESERVOIR ПРОСТРАНСТВЕННАЯ ВАРИАБЕЛЬНОСТЬ ИНТЕНСИВНОСТИ НАКОПЛЕНИЯ РТУТИ В МЫШЦАХ РАЗНОРАЗМЕРНОГО ОКУНЯ РЫБИНСКОГО ВОДОХРАНИЛИЩА Гремячих В. А Gremyachikh V. A Комов Виктор Трофимович Komov Viktor Trofimovich Базаров Михаил Иванович Bazarow Michail Ivanovich bazarov2009@gmail.com Иванова Е. С. Ivanova E. S. Баженова Д. Е. Bazhenova D. E. Федеральное государственное бюджетное учреждение науки Институт биологии внутренних вод им. И.Д. Папанина Российской академии наук Борок Россия Papanin Institute for Biology of Inland Waters Russian Academy of Sciences Borok Russian Federation Институт биологии внутренних вод им. И. Д. Папанина Российской академии наук (поселок Борок, Ярославская область) ru I. D. Papanin Institute of Biology of Inland Waters, Russian Academy of Sciences (Village Borok, the Yaroslavl Region) ru 17 01 2025 17 01 2025 108 7 19 27 09 2024 10 10 2024 https://ibiw.editorum.ru/en/nauka/article/93329/view

Исследована взаимосвязь содержания ртути (Hg) в мышцах окуня Perca flutiatilis L., 1758 (Perciformes, Percidae) с длиной рыб из разных плесов Рыбинского водохранилища и нижнего бьефа ГЭС Угличского водохранилища, различающихся по своим физико-химическим характеристикам. Измерение Hg в образцах проводили атомно-абсорбционным методом на ртутном анализаторе РА-915+ с приставкой ПИРО (Люмэкс) без предварительной подготовки проб, пределы обнаружения Hg в биологических образцах — 0.0005–2.0000 мг/кг. Средние концентрации металла варьировали от 0.004 до 0.87 мг/кг сырой массы при средней длине рыб 2.2–45.0 см и различались по плесам. Влияние длины рыб на содержание металла в мышцах характеризовали коэффициентом наклона линии регрессии (показатель интенсивности накопления Hg) и уровнем пересечения линии с осью Y (показатель базового содержания Hg в организмах начала трофической цепи) по каждой указанной группе. Установлено, что интенсивность накопления Hg окунем длиной до 10 см достоверно снижается при дальнейшем увеличении размеров рыб и зависит от участка вылова в пределах Рыбинского водохранилища.

The study investigates the relationship between the mercury (Hg) content in the muscles of the perch Perca fluviatilis L., 1758 from different areas of the Rybinsk Reservoir including tail-water of the Uglich hydroelectric power plant, which differ in their physico-chemical characteristics, and the length of the fish. The measurement of Hg was carried out using the atomic absorption method on a RA-915+ mercury analyzer with the PYRO prefix (Lumex), without any preliminary sample preparation. The detection limits for Hg concentrations in biological samples on this device range from 0.0005 to 2.0000 mg/kg. Average metal concentrations ranged from 0.04 to 0.87 mg/kg of wet weight for fish with an average length of 2.2–45.0 cm, and differed by reservoir sections. The magnitude of effect of the fish length on the metal content in fish muscles was determined by the slope of the regression line, which indicates the rate of Hg accumulation, and the intercept of the line on the Y-axis representing the baseline level of Hg in organisms at the beginning of the food chain for each specified group. It was found that the maximum intensity of Hg accumulation is attained in the perch of up to 10 cm long and then significantly decreased in larger fishes, variably depending on the sampling area within the Rybinsk Reservoir.

 ртуть Perca fluviatilis Рыбинское водохранилище mercury Perca fluviatilis Rybinsk Reservoir Работа выполнена в рамках государственного задания № 124032500015-7 “Роль абиотических и биотических факторов в формировании физиолого-биохимических и иммунологических показателей гидробионтов”.

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