Name
Besschetnova Larisa Mikhailovna
Scholastic degree
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Academic rank
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Honorary rank
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Organization, job position
Federal State Unitary Enterprise Azov Fisheries Research Institute (FGUP «AzNIIRKH»)
Web site url
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Articles count: 1
The article presents the results on the effects of
Imazethapyr herbicide on aquatic organisms. The
chronic toxic effects have been studied of the
imidazolinone herbicide in a concentration range of
0.4 - 1150 mg/l to the representatives of various
groups of aquatic organisms: zoobenthos – great
ramshorn snail (Planorbarius corneus), zooplankton
- Daphnia (Daphnia magna Straus), phytoplankton -
protococcal alga (Scenedesmus guadrigauda) and
macrophytes - higher aquatic vegetation (Elodea
canadensis Michx). It is shown that the herbicide
does not have a pronounced lethal effect to aquatic
organisms tested. Their respective LC50 values are
> 1000, 680, 510 and 910. Elodea is shown to be
most sensitive to its sublethal effects (decreased
growth of lateral and main sprouts at a concentration
of 10 mg/l and more), reduced fertility was observed
in Daphnia at a concentration of 300 mg/l and
above, and as to the great ramshorn snail no
sublethal effects have been revealed for all the
concentrations studied