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水生生物学期刊
SJR: 0.217 SNIP: 0.575 CiteScore™: 0.24

ISSN 打印: 0018-8166
ISSN 在线: 1943-5991

水生生物学期刊

DOI: 10.1615/HydrobJ.v55.i1.40
pages 44-49

Empiric Relationship between the Growth of Chironomus riparius Larvae and the Content of the Elements of the Group of Metals in the Composition of Freshwater Bottom Sediments under Laboratory Conditions

M. V. Gapeyeva
Institute of Biology of Inland Waters Russian Academy of Sciences Borok, Russian Federation
L. A. Kuchay
Institute of Biology of Inland Waters Russian Academy of Sciences Borok, Russian Federation
R. A. Lozhkina
Institute of Biology of Inland Waters Russian Academy of Sciences Borok, Russian Federation

ABSTRACT

The group of metals, including Li, Be, Na, Mg, K, Ca, Mn, Co, Cu, Rb, Sr, Cs, Ba, Tl, and Pb, and the sum of light (La, Ce, Pr, Nd, and Sm) and heavy (Eu, Gd, Tb, Dy, Er, Tm, Yb, and Lu) rare-earth elements, the content of which correlates with the growth of Chironomus riparius larvae, was determined in bottom sediments using the method of piecewise regression. The methods of the multidimensional statistical analysis and the appendix of the theory of indistinct sets, in particular, desirability functions were used. It has been shown that the metals of the first two groups of the Mendeleyev Table explain 79.5% of the variations of the change in larvae dimensions. The intervals of the concentrations of the general forms of chemical elements corresponding to the optimal growth of Chironomus riparius larvae were determined on the basis of the Harrington scale and function.


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