Тип публикации: статья из журнала
Год издания: 2022
Идентификатор DOI: 10.1134/S1995425522010115
Ключевые слова: piscivorous fish, toxic metals, body length, body weight, size effect
Аннотация: The trophic position of fish is one of the most important factors controlling the accumulation of potentially toxic elements and compounds in fish tissues, primarily via the spectrum of fish nutrition. In this study, the content of potentially toxic transition metals (Cu, Zn, Mn, Pb, and Cd) and radiocesium (Cs-137) in the edible tПоказать полностьюissues (muscles and liver) of two representatives of the fish-eating ichthyofauna of the Yenisei River, northern pike (Esox lucius) and burbot (Lota lota), have been comparatively studied relatively to the size of the fish. A significant decrease in the content of radiocesium and zinc in the muscles of pike and zinc in the liver of pike with an increase in body size has been recorded in juvenile pikes with a body weight (W) of less than 0.35 kg. For larger sexually mature pikes, no significant size dependences of the accumulation of metals in tissues are found. A positive correlation is found between the content of Cs-137, Cu, Zn, and Mn in muscles and the size of burbot in the W range from 0.42 to 1.62 kg. The tissues of burbots and pikes of the same size significantly (p
Журнал: CONTEMPORARY PROBLEMS OF ECOLOGY
Выпуск журнала: Vol. 15, Is. 1
Номера страниц: 91-99
ISSN журнала: 19954255
Место издания: NEW YORK
Издатель: MAIK NAUKA/INTERPERIODICA/SPRINGER