HOME
Full Articles List
Search by Author
Title: VANADIUM EFFECT ON PHYTOPLANKTON, BOD5 AND ALKALINE PHOSPHATASE ACTIVITY IN LABORATORY EXPERIMENT
BibTex 
Open this article in the author's DB |
|
VANADIUM EFFECT ON PHYTOPLANKTON, BOD5 AND ALKALINE PHOSPHATASE ACTIVITY IN LABORATORY EXPERIMENT
|
|
|
|
|
|
|
|
||
|
|
|
|
|
|
1314-2704
|
|
|
|
||
|
|
English
|
|
|
|
21
|
|
|
|
7.1
|
|
|
|
• Prof. DSc. Oleksandr Trofymchuk, UKRAINE
• Prof. Dr. hab. oec. Baiba Rivza, LATVIA |
|
|
|
||
|
|
Here, we report a laboratory experiment performed with the water from the Don river. Our aim was to examine the effect of NH4VO3 in concentrations of 0.5, 5, 25, and 100 ?g/L of Vanadium (V) on the phytoplankton growth indicators in the absence of their growth limitation by Nitrogen (N) and Phosphorus (P), as well as on the metabolism intensity indicators of plankton communities: biochemical oxygen demand (BOD5) and alkaline phosphatase activity (APA). The stimulating effect on the phytoplankton abundance and biomass for each of the used V concentration was recorded. The greatest phytoplankton abundance and biomass increase (26% and 42%, respectively) was noted at V concentrations of 5 ?g/L. The stimulating effect on the phytoplankton growth indicators decreased with an increase of V concentration to 25 and 100 ?g/L. With an increase in concentration to 25 and 100 ?g/L the stimulating effect of V on the phytoplankton growth indicators decreased. The greatest stimulating effect was noted for green algae, the abundance and biomass of which increased by 79-114% and 75-87%, respectively, after the addition of V. An increase in the rate of consumption of N and P mineral forms with an increase in the concentration of V was noted, which serves as an indirect confirmation of V stimulating effect on phytoplankton. A small stimulating effect of V (15-30%) was also noted in certain observation periods for BOD5. In contrast to phytoplankton abundance and biomass and BOD5, APA decreased by 20-40% after the increase of V concentration and the exposure time.
|
|
|
|
conference
|
|
|
|
||
|
|
||
|
|
21st International Multidisciplinary Scientific GeoConference SGEM 2021
|
|
|
|
21st International Multidisciplinary Scientific GeoConference SGEM 2021, 16 - 22 August, 2021
|
|
|
|
Proceedings Paper
|
|
|
|
STEF92 Technology
|
|
|
|
SGEM International Multidisciplinary Scientific GeoConference
|
|
|
|
SWS Scholarly Society; Acad Sci Czech Republ; Latvian Acad Sci; Polish Acad Sci; Serbian Acad Sci & Arts; Natl Acad Sci Ukraine; Natl Acad Sci Armenia; Sci Council Japan; European Acad Sci, Arts & Letters; Acad Fine Arts Zagreb Croatia; Croatian Acad Sci
|
|
|
|
393-400
|
|
|
|
16 - 22 August, 2021
|
|
|
|
website
|
|
|
|
cdrom
|
|
|
|
7997
|
|
|
|
vanadium; phytoplankton; alkaline phosphatase; BOD5
|
|
Download PDF