Biocoenotical and energetic composition of overflow water at tuffa barriers of River Krka

Korman, Davor (2016) Biocoenotical and energetic composition of overflow water at tuffa barriers of River Krka. Diploma thesis, Faculty of Science > Department of Biology.

Language: Croatian

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Seston is a term used to describe all particles suspended in the water column. It represents an energetical foundation for lotic life assemblages and is constantly redistributed in rivers. Main goal of this research was to determine the composition and patterns of transport of seston at tufa barriers of river Krka. Research was carried out during one year with monthly sampling from November 2013 to October 2014. Samples were taken with a modified drift-net. Modified drift-nets were used for seston sampling. Physical and chemical parameters of water were measured of which some had significant influence on the drift of macrozoobenthos. Discharge and flow velocity have not shown significant correlation with transport of seston. We concluded that main cause of differences in oxygen concentration, composition and amount of seston transported between tufa barriers were changes in hydrodynamics in Visovac lake. Research has shown that lake influenced higher abundance of invertebrates on barrier Skradinski buk. Also, lake influence resulted in more seston being overflown at barrier Roški slap, hence it's energetic value was higher.

Item Type: Thesis (Diploma thesis)
Keywords: drift, karst, CPOM, FPOM, flow velocity, energy, dynamics
Supervisor: Miliša, Marko
Date: 2016
Number of Pages: 44
Subjects: NATURAL SCIENCES > Biology
Divisions: Faculty of Science > Department of Biology
Depositing User: Silvana Šehić
Date Deposited: 24 Mar 2016 23:21
Last Modified: 24 Mar 2016 23:21

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