Epiphytich communuties on mosses and macrophytes in stream jankovac (Papuk)

Štafa, Dagmar (2011) Epiphytich communuties on mosses and macrophytes in stream jankovac (Papuk). Diploma thesis, Faculty of Science > Department of Biology.

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Abstract

The research of epiphyton on mosses and macrophytes was conducted from May to October of 2008 in Jankovac stream (Nature park Papuk). Main hypothesis of this study were that the structure of macrophyte stands affects composition of epiphytic communities in lentic and that current velocity and moss bottom coverage affects composition of epiphytic communities in lotic. Main goals of this study were to determine: 1. seasonal and spatial changes of physical and chemical factors in water; 2. qualitative and quantitative composition of epiphyitic communities on macrophytes in lentic; 3. qualitative and quantitative composition of epiphyitic communities on mosses in lotic; 4. impact of abiotic and biotic parametres on qualitative and quantitative composition of epiphyitic communities. Analysis of physical and chemical parameters showed statistically significant (p < 0,05) spatial changes of water temperature, conductivity, pH, free CO2 concentration, alkalinity, nitrate concentration and flow velocity. In epiphytic communities on mosses ciliates had greater diversity (40 species, 44%) while rotifers were more abundant (160.800 ± 513.400 ind/g DW, 83%). Between microhabitas with dense and scatteerd moss clusters differences of physical and chemical parameters and food sources availability lead to significant differences in epiphytic abundance (JI 12.800 ± 7.700 ind/g DW, JS 380.465 ± 75.000 ind/g DW) and diversity (JI 39 species, JS 76 species). Ciliates with 30 species (46%) and rotifer with 28 species (43%) were dominant in epiphytic diversity on macrophytes. The greatest abundance was achieved by ciliates (5.500 ± 11.400 jed/g ST, 94%). Among macrophytes species lowest diversity was recorded on emergent Typha latifolia L. with simply built stands while greatest diversity and abundance was on submerged species Hippuris vulgaris L.(46 species, 13.600 ± 23.000 ind/g DW) whose stands were most branched out. Results oft his research show that mosses in lotic areas and macrophytes in lentic areas are more divers and abundant when compared with other freshwater habitats.

Item Type: Thesis (Diploma thesis)
Keywords: epiphyton, moss, submergent and emergent macrophytes, ciliates, rotifers
Supervisor: Špoljar, Maria
Date: 2011
Number of Pages: 48
Subjects: NATURAL SCIENCES > Biology
Divisions: Faculty of Science > Department of Biology
Depositing User: Grozdana Sirotic
Date Deposited: 12 Jun 2014 07:51
Last Modified: 18 Sep 2014 11:47
URI: http://digre.pmf.unizg.hr/id/eprint/2359

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