Phytoplankton communities of reservoirs of river Drava

Plavšić, Kristina (2015) Phytoplankton communities of reservoirs of river Drava. Diploma thesis, Faculty of Science > Department of Biology.

Language: Croatian

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Phytoplankton samples were collected simultaneously with physico–chemical parameters in reservoirs of Drava river in May, June, September and November in 2012 and May, June, August and October in 2013. Samples were collected at eight sampling points. Goal of this study was to establish the composition of the phytoplankton community using functional groups, abundance and biomass of net phytoplankton. Phytoplankton abundance was determined from number of cells in counting chamber and the corresponding volume of the sample. Minimum of 30 cells of each species was measured and from the average size of cells and corresponding geometrical bodies, biovolumes were calculated. Biomass for each species was calculated multiplying number of cells and biovolumes. Primer program was used for multidimensional scaling and CAP analysis which related the biomass and physico–chemical parameters. Two researched years differentiate in community abundance and composition and physico–chemical parameters. Total of 151 species from 88 genuses were found. The majority of the species belong to functional groups of MP, J and D; and taxonomical groups Bacillariophyceae and Chlorophyta. The number of phytoplankton species was higher in 2013. while abundance and biomass were higher in the 2012. Water temperature, conductivity, as well as concentration of nitrates and nitrites had the highest impact on the community.

Item Type: Thesis (Diploma thesis)
Keywords: phytoplankton, monitoring, abundance, biomass, funcional groups
Supervisor: Plenković-Moraj, Anđelka
Date: 2015
Number of Pages: 59
Subjects: NATURAL SCIENCES > Biology
Divisions: Faculty of Science > Department of Biology
Depositing User: Silvana Šehić
Date Deposited: 04 Mar 2016 13:21
Last Modified: 04 Mar 2016 13:21

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