Vasylenko O. Central Polissya pond snails feed ecology (Mollusca, Pulmonata, Lymnaeidae)

Українська версія

Thesis for the degree of Candidate of Sciences (CSc)

State registration number

0408U003220

Thesis Registration Form

0408U003220.pdf

Applicant for

Specialization

  • 03.00.16 - Екологія

11-06-2008

Specialized Academic Board

Д 76.051.05

Yuriy Fedkovych Chernivtsi National University

Essay

The dissertation represents heavy metals' ions of water environment and trematodas invasion of mollusks. Moderate invasion is accompanied by the increasing the major trophological indices. Тhe most negative influence on the processes of feeding and digestion of pond snails render the cadmium ions. Less toxic for these animals are chrome ions (III). Zinc ions at concentrations limits of 0.5 - 3 stimulate the pond snails' life activity.

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