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master's thesis
Distribution and ecological characteristics of Potamogeton L. species in the rivers of the Pannonian ecoregion in Croatia
Zagreb: University of Zagreb, Faculty of Science, 2021. urn:nbn:hr:217:999020
Geršak, Nikola
University of Zagreb
Faculty of Science
Department of Biology

Institutional repository: Repository of the Faculty of Science

Cite this document

Geršak, N. (2021). Distribution and ecological characteristics of Potamogeton L. species in the rivers of the Pannonian ecoregion in Croatia (Master's thesis). Zagreb: University of Zagreb, Faculty of Science. Retrieved from https://urn.nsk.hr/urn:nbn:hr:217:999020

Geršak, Nikola. "Distribution and ecological characteristics of Potamogeton L. species in the rivers of the Pannonian ecoregion in Croatia." Master's thesis, University of Zagreb, Faculty of Science, 2021. https://urn.nsk.hr/urn:nbn:hr:217:999020

Geršak, Nikola. "Distribution and ecological characteristics of Potamogeton L. species in the rivers of the Pannonian ecoregion in Croatia." Master's thesis, University of Zagreb, Faculty of Science, 2021. https://urn.nsk.hr/urn:nbn:hr:217:999020

Geršak, N. (2021). 'Distribution and ecological characteristics of Potamogeton L. species in the rivers of the Pannonian ecoregion in Croatia', Master's thesis, University of Zagreb, Faculty of Science, accessed 09 May 2024, https://urn.nsk.hr/urn:nbn:hr:217:999020

Geršak N. Distribution and ecological characteristics of Potamogeton L. species in the rivers of the Pannonian ecoregion in Croatia [Master's thesis]. Zagreb: University of Zagreb, Faculty of Science; 2021 [cited 2024 May 09] Available at: https://urn.nsk.hr/urn:nbn:hr:217:999020

N. Geršak, "Distribution and ecological characteristics of Potamogeton L. species in the rivers of the Pannonian ecoregion in Croatia", Master's thesis, University of Zagreb, Faculty of Science, Zagreb, 2021. Available at: https://urn.nsk.hr/urn:nbn:hr:217:999020

Metadata
TitleDistribution and ecological characteristics of Potamogeton L. species in the rivers of the Pannonian ecoregion in Croatia
Title (croatian)Rasprostranjenost i ekološke značajke roda Potamogeton L. u tekućicama Panonske ekoregije Hrvatske
AuthorNikola Geršak
MentorAntun Alegro (mentor)
Committee memberAntun Alegro (predsjednik povjerenstva)
Committee memberSara Essert (član povjerenstva)
Committee memberIvan Čanjevac (član povjerenstva)
Committee memberHana Fajković (član povjerenstva)
Committee memberLuka Valožić (član povjerenstva)
GranterUniversity of Zagreb
Faculty of Science
(Department of Biology)
Zagreb
Defense date and country2021-12-14, Croatia
Scientific / art field,
discipline and subdiscipline		NATURAL SCIENCES
Biology
Abstract
This thesis gives an insight of ecological characteristics of pondweeds (Potamogeton L.) in the rivers in the Pannonian ecoregion of Croatia. Data on distribution of species and their abundances were collected on 166 sample sites in the period 2016-2020, as well as physicochemical parameters of water. The data used in the paper was processed partly in the R programming language, partly in QGIS and in the Canoco 5 and Juice 7 programs. Statistical multivariate methods were used in the paper: CCA, DCA, GAM and TWINSPAN. Physicochemical parameters of water related to pondweed species sites show high levels of trophy. Of the nine species mentioned in the paper, 3 species showed the highest incidence but also tolerance to eutrophic conditions. These are P. nodosus, the species that was present in all species of water bodies with the highest incidence, and P. crispus and P. pectinatus. These species can serve as bioindicators of eutrophicated water. Other species showed lower incidence, but also lower tolerance to eutrophication. The species P. lucens proved to be the most sensitive to eutrophication, which can also serve as an indicator of better water quality.
Abstract (croatian)
Ovaj rad donosi uvid u rasprostranjenost i ekološke karakteristike mrijesnjaka (Potamogeton L.) u rijekama Panonske eko-regije Hrvatske. Podaci o rasprostranjenosti vrsta i njihovoj brojnosti, te fizikalno-kemijski parametri vode prikupljeni su na 166 postaja u razdoblju 2016.-2020. Podaci korišteni u radu su dijelom obrađeni u programskom jeziku R, dijelom u QGIS-u te u programima Canoco 5 i Juice 7. U radu su se koristile statističke multivarijantne metode: CCA, DCA, GAM i TWINSPAN. Fizikalno-kemijski parametri vode vezani za nalazišta vrsta mrijesnjaka pokazuju visoke razine trofije. Od devet vrsta koje se spominju u radu, 3 vrste su pokazale najveću pojavnost, ali i toleranciju na eutrofne uvjete. To su P. nodosus, vrsta koja je bila zastupljena u svim vrstama vodnih tijela s najvećom pojavnošću, te P. crispus i P. pectinatus. Ove vrste mogu poslužiti kao bioindikatori eutrofne vode. Druge vrste su pokazale manju pojavnost, ali i manju toleranciju na eutrofikaciju. Najosjetljivijom na eutrofikaciju se pokazala vrsta P. lucens koja može poslužiti i kao indikator bolje kvalitete vode.
Keywords
Keywords (croatian)
Languagecroatian
URN:NBNurn:nbn:hr:217:999020
Study programmeTitle: Enviromental Sciences
Study programme type: university
Study level: graduate
Academic / professional title: magistar/magistra struke znanosti o okolišu (magistar/magistra struke znanosti o okolišu)
Type of resourceText
File originBorn digital
Access conditionsOpen access
Terms of useLicence In copyright icon
Created on2021-12-15 13:53:42