Issues:
Sections:
Issue 95
GENERAL BIOLOGY
UDK: 574.583:574.23:574.64
COMPARATIVE ASSESSMENT OF THE EFFECT OF SODIUM SALTS ON AQUATIC ORGANISMS ON THE EXAMPLE OF SOME WATERCOURSES
DROZDENKO Tatyana V.,
MEDYANKINA Mariya V.,
TRIGUB Anatoly G.
A comparative assessment of the effect of anions in the composition of inorganic salts on the biological parameters of hydrobionts in natural waters of various hydrochemical composition has been carried out. A comparative assessment of toxicity of sodium cation to the unicellular algae Scenedesmus quadricauda and the crustaceans Daphnia magna and Hyalella azteca is given when using salts containing different anions. Studied has been the effect of salt ions, introduced into the natural aquatic environment with different hydrochemical compositions, on such indicators in D. magna and H. azteca as fertility, survival in the initial samples and in the three subsequent generations to identify a long-term toxic effect. For the first time, it has been established that the most sensitive indicator, under the action of high concentrations of inorganic salts on the Danio rerio fish, is hatching larvae from egg shells when they are in waters of various composition.
Pages: 32 - 37
Date: 23.12.2024