Raznovrsnost alga kremenjašica u lentičkim biotopima Hrvatske

master's thesis

• Title (english): Diversity of diatoms in Croatian lentic biotopes
• Author: Ivana Volarić
• Mentor: Anđelka Plenković-Moraj (mentor)
• Committee member: Marija Gligora Udovič (predsjednik povjerenstva)
• Committee member: Ines Radanović (član povjerenstva)
• Committee member: Zora Popović (član povjerenstva)
• Committee member: Marko Miliša (član povjerenstva)
• Granter: University of Zagreb; Faculty of Science; (Department of Biology); Zagreb
• Defense date and country: 2017-05-29, Croatia
• Scientific / art field, discipline and subdiscipline: NATURAL SCIENCES; Biology

Abstract

Dijatomeje ili alge kremenjašice su jednostanični, eukariotski, fotosintetski mikroorganizmi koji žive gotovo na svim vlažnim staništima. U uvjetima različitih pH vrijednosti, koncentracije otopljenih tvari, hranjivih tvari, te različitog temperaturnog raspona. Kao biološki indikatori ukazuju na promjene fizikalnih, kemijskih i bioloških uvjeta u okolišu te se koriste u ocjeni ekološkog stanja i monitoringu slatkovodnih staništa, a uvelike doprinose primarnoj produkciji. Izrađena elektronička baza popisa dijatomejskih vrsta dobivena je analizom tabličnih podataka provedenih terenskih istraživanja u razdoblju od 1998. do 2013. godine. Provedenim su istraživanjima obuhvaćene planktonske i bentičke/perifitonske dijatomeje lentičkih biotopa (prirodna jezera i akumulacije) Republike Hrvatske: Baćinska jezera, jezero Butoniga, Plitvička jezera (Kozjak, Prošće), Visovačko jezero, Vransko jezero na otoku Cresu, Vransko jezero kod Biograda na moru, te akumulacije na rijeci Dravi (Čakovec, Dubrava, Varaždin). Elektronička baza podataka objedinjuje osnovne podatke za 303 vrste, 12 varijeteta i 1 forme dijatomeja svrstanih unutar 83 roda. Brojem utvrđenih vrsta na istraživanim lokalitetima dominiraju bilateralno simetrične Pennatae unutar kojih je rod Navicula Bory, najzastupljeniji s obzirom na broj vrsta i abundanciju broja stanica. U Baćinskim jezerima utvrđen je najveći broj dijatomejskih vrsta.

Abstract (english)

Diatoms are unicelullar, eukariotic, photosynthetic microorganisms that live in most freshwaters, in a wide range of aquatic habitats. In terms of different pH values, different concentrations of dissolved substances and nutrients and also diverse temperature range. They indicate a change in the physical, chemical and biological environmental conditions as biological indicators and as such are used in the assessment of ecological status and monitoring of freshwater habitats, they greatly contribute to primary production. A electronic check-list database for freshwater diatoms was obtained after analyzing research field date in the period from 1998 to 2013 year. Conducted researches covered planktonic and benthic/ periphyton diatoms in the lentic biotope (natural lakes and accumulations) of Croatia: Baćina lakes, lake Butoniga, Plitvice lakes (Kozjak, Prošće), Visovac lake, lake Vrana in the Cres island, Vrana lake by Biograda na Moru, and accumulations on the river Dravi (Čakovec, Dubrava, Varaždin). Electronic check-list database combines basic informations for 303 species, 12 varieties and 1 form of diatoms grouped in 83 genera. Considering number of identified species at the study sites, dominante diatom group is bilaterally symmetrical Pennatae in which is the genera Navicula Bory as most represented in number of species and abundance per the number of cells. In Baćina lakes was determined the largest number of diatom speacies.

• Keywords: dijatomeje; fitoplankton; fitobentos; jezera
• Keywords (english): diatoms; phytoplankton; phytobentos; lakes
• Language: croatian
• URN:NBN: urn:nbn:hr:217:184703
• Study programme: Title: Integrated undergraduate and graduate university study of Biology and Chemistry Education; specializations in: Integrated undergraduate and graduate university study of Biology and Chemistry Education; Course: Integrated undergraduate and graduate university study of Biology and Chemistry Education; Study programme type: university; Study level: integrated undergraduate and graduate; Academic / professional title: magistar/magistra edukacije biologije i kemije (magistar/magistra edukacije biologije i kemije)
• Type of resource: Text
• File origin: Born digital
• Access conditions: Open access
• Created on: 2017-07-14 08:59:52