Attestation committee
Accreditation committee
Expert committee
Dispositions, instructions
Normative acts
MANPOWER TRAINING
Nomenclature
Institutions
Scientific councils
Seminars
Theses		 Scientific advisers
Scientists
Doctoral students
Postdoctoral students
CNAA logo

 română | русский | english


Diversity and role of macrophyte in the ecosystem of Cuciurgan reservoir


Author: Filipenco Elena
Degree:doctor of biology
Speciality: 03.00.18 - Hydrobiology, ichthyology
Year:2017
Scientific adviser: Elena Zubcov
doctor habilitat, professor, Institute of Zoology
Institution: Institute of Zoology

Status

The thesis was presented on the 26 December, 2016
Approved by NCAA on the 16 February, 2017

Abstract

Adobe PDF document – 1.08 Mb / in romanian
Adobe PDF document – 1.13 Mb / in russian

Thesis

CZU 574.5 : 556.551(478) (043.2)

Adobe PDF document 3.57 Mb / in russian
133 pages

Keywords

higher aquatic plants, macrophytes, cooling reservoir, overgrowing with macrophytes, bioindication, metal accumulation and migration.

Summary

Field of study: hydrobiology.

Aim of the thesis:to study the current state of higher aquatic vegetation and to assess its role in the ecosystem of cooling reservoir of the Moldovan Thermal Power Plant.

Objectives: to research the formation processes of the higher aquatic vegetation at different stages of the cooling reservoir exploitation; to study the composition and patterns of spatial distribution of macrophytes on water area of cooling reservoir; to reveal the peculiarities of the seasonal dynamics of the main groups of higher aquatic plants in cooling reservoir; bioindication of the reservoir ecological status based on macrophytes; to determine the regularities of metal accumulation (V, Mo, Ni, Pb, Ti, Al, Cu, Zn, Mn) by aquatic vegetation; to assess the role of the higher aquatic vegetation in the migration and circuit of chemical elements, and the processes of self-cleaning and secondary pollution of the cooling reservoir.

Scientific novelty and originality. A complex research of the higher aquatic vegetation peculiarities of development and distribution in dependence of the TPP operation has been carried out for the first time; the degree of reservoir overgrowing was assessed; the regularities of metal accumulation and circuit and the role of macrophytes in the self-cleaning and secondary pollution of the reservoir were determined; bioindication of the reservoir ecological status with macrophytes was applied; 2 plant species included in the Red Book of the Republic of Moldova were identified and described.

Important scientific problem solved consists in determining the taxonomic structure of the overgrowing the cooling reservoir vegetation, and revealing the regularities of metal accumulation by higher aquatic vegetation, which allowed assessing quantitatively the macrophyte accumulation capacity, determining their tolerance and role in the reservoir selfcleaning and secondary pollution processes, aiming to ground scientifically the carrying out of improvement works of technogenic-modificated aquatic ecosystems and macrophyte usage in bioindication and monitoring.

Theoretical significance. The obtained results complement and extend the knowledge on the diversity of higher aquatic plants, processes and regularities of the metal accumulation and migration in aquatic ecosystems. The results ensure the scientific basis for a more efficient use of aquatic plants in the biological monitoring and phytoremediation of polluted water bodies, including the cooling reservoirs.

Practical value. The results can be used in teaching process, implemented in the system of ecological monitoring of Cuciurgan reservoir, applied in elaboration of measures aimed to reduce the overgrowing with macrophytes and the influence of biological impediments on TPP activity.