Učinak presušivanja na zajednice vodenih beskralježnjaka hiporeičke zone izvorišnog toka Rječine

Glavan, Patrik

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master's thesis

Učinak presušivanja na zajednice vodenih beskralježnjaka hiporeičke zone izvorišnog toka Rječine

Zagreb: University of Zagreb, Faculty of Science, 2022. urn:nbn:hr:217:466849

Glavan, Patrik

University of Zagreb
Faculty of Science
Department of Biology

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APA 6th Edition

Glavan, P. (2022). Učinak presušivanja na zajednice vodenih beskralježnjaka hiporeičke zone izvorišnog toka Rječine (Master's thesis). Zagreb: University of Zagreb, Faculty of Science. Retrieved from https://urn.nsk.hr/urn:nbn:hr:217:466849

MLA 8th Edition

Glavan, Patrik. "Učinak presušivanja na zajednice vodenih beskralježnjaka hiporeičke zone izvorišnog toka Rječine." Master's thesis, University of Zagreb, Faculty of Science, 2022. https://urn.nsk.hr/urn:nbn:hr:217:466849

Chicago 17th Edition

Harvard

Glavan, P. (2022). 'Učinak presušivanja na zajednice vodenih beskralježnjaka hiporeičke zone izvorišnog toka Rječine', Master's thesis, University of Zagreb, Faculty of Science, accessed 16 January 2025, https://urn.nsk.hr/urn:nbn:hr:217:466849

Vancouver

Glavan P. Učinak presušivanja na zajednice vodenih beskralježnjaka hiporeičke zone izvorišnog toka Rječine [Master's thesis]. Zagreb: University of Zagreb, Faculty of Science; 2022 [cited 2025 January 16] Available at: https://urn.nsk.hr/urn:nbn:hr:217:466849

IEEE

P. Glavan, "Učinak presušivanja na zajednice vodenih beskralježnjaka hiporeičke zone izvorišnog toka Rječine", Master's thesis, University of Zagreb, Faculty of Science, Zagreb, 2022. Available at: https://urn.nsk.hr/urn:nbn:hr:217:466849

Cite this item: https://urn.nsk.hr/urn:nbn:hr:217:466849

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Metadata

Title	Učinak presušivanja na zajednice vodenih beskralježnjaka hiporeičke zone izvorišnog toka Rječine
Title (english)	Effects of drying on aquatic invertebrate assemblages in the springbrook hyporheic zone of the Rječina River
Author	Patrik Glavan
Mentor	Sanja Gottstein (mentor)
Committee member	Sanja Gottstein (predsjednik povjerenstva)
Committee member	Ivan Čanjevac (član povjerenstva)
Committee member	Mirela Sertić Perić (član povjerenstva)
Committee member	Karmen Fio Firi (član povjerenstva)
Committee member	Alan Moro (član povjerenstva)
Granter	University of Zagreb Faculty of Science (Department of Biology) Zagreb
Defense date and country	2022-09-29, Croatia
Scientific / art field, discipline and subdiscipline	NATURAL SCIENCES Biology
Abstract	Hiporeička zona spada među najugroženije vodene ekosustave u svijetu. Usprkos tome, hiporeička zona vodotoka koji presušuju započela se istraživati tek nedavno. Prikupljeni su uzorci vodenih beskralježnjaka hiporeičke zone izvorišnog toka rijeke Rječine u Republici Hrvatskoj kako bi se utvrdile sezonske razlike u brojnosti, sastavu i raznolikosti hiporeosa s obzirom na fizikalnokemijske i hidrološke uvjete u vodotoku. Uzorci su prikupljeni Bou-Rouch pumpom, a voda je profiltrirana kroz mrežicu promjera oka 100 μm čime je definirana minimalna veličina prikupljene faune (mikro- do meiofauna) koja je pohranjena u 96 %-tnom etanolu te specijalističkim ključevima pod laboratorijskom stereo lupom determinirana do najniže moguće sistematske razine. Presušivanje korita uzrokovalo je povišenje temperature vode u HZ te više vrijednosti organske tvari. Raznolikost hiporeosa najviša je tijekom ljeta kada je vodotok presušio, a najniža tijekom zime kada su vrijednosti protoka bile visoke do ekstremne. Veća je sličnost hiporeosa između zime i ranog proljeća te ljeta i rane jeseni s vrijednostima od 40 % do 60 % te odvojenim klasterima sezona tijekom kojih vodotok presušuje.
Abstract (english)	The hyporheic zone is among the most endangered water ecosystems in the world. Nevertheless, researches of the hyporheic zone of intermittent streams started just recently. Samples of aquatic invertebrates of the springbrook hyporheic zone of the karst river Rječina in the Republic of Croatia were collected in order to determine seasonal differences in their abundance, composition and diversity with regard to the physiochemical and hydrologic conditions in the stream. A Bou-Rouch pump was used for sampling, and the water was filtered through a mesh with a hole diameter of 100 μm defining the minimum size of the collected fauna (micro- to meiofauna), which was stored in 96 % ethanol and later determined to the lowest possible systematic level under a laboratory stereo microscope using specialist keys. Drying of the riverbed led to an increase in the temperature of the water in the hyporheic zone and a higher organic matter content. The diversity of hyporheos is highest during summer when the watercourse dries up, and lowest during winter when discharge values are high to extreme. There is a greater similarity of hyporheos between winter and early spring and between summer and early autumn with values from 40 % to 60 % and separate clusters of seasons during which the watercourse dries up.
Keywords
Keywords (english)
Language	croatian
URN:NBN	urn:nbn:hr:217:466849
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 Embargo expiration date: 2024-09-29
Terms of use
Repository	Repository of the Faculty of Science
Created on	2022-10-25 12:22:57