Distribution and ecological characteristics of Potamogeton L. species in the rivers of the Pannonian ecoregion in Croatia

Geršak, Nikola

prikaz prve stranice dokumenta Distribution and ecological characteristics of Potamogeton L. species in the rivers of the Pannonian ecoregion in Croatia

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

Cite this document

APA 6th Edition

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

MLA 8th Edition

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

Chicago 17th Edition

Harvard

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 22 January 2025, https://urn.nsk.hr/urn:nbn:hr:217:999020

Vancouver

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 2025 January 22] Available at: https://urn.nsk.hr/urn:nbn:hr:217:999020

IEEE

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

Cite this item: https://urn.nsk.hr/urn:nbn:hr:217:999020

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Metadata

Title	Distribution 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
Author	Nikola Geršak
Mentor	Antun Alegro (mentor)
Committee member	Antun Alegro (predsjednik povjerenstva)
Committee member	Sara Essert (član povjerenstva)
Committee member	Ivan Čanjevac (član povjerenstva)
Committee member	Hana Fajković (član povjerenstva)
Committee member	Luka Valožić (član povjerenstva)
Granter	University of Zagreb Faculty of Science (Department of Biology) Zagreb
Defense date and country	2021-12-14, 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)
Language	croatian
URN:NBN	urn:nbn:hr:217:999020
Study programme	Title: 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 resource	Text
File origin	Born digital
Access conditions	Open access
Terms of use
Repository	Repository of the Faculty of Science
Created on	2021-12-15 13:53:42