Alge kremenjašice - biološki element kakvoće vode u bentosu akumulacija rijeke Drave

Keder, Ema

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master's thesis

Alge kremenjašice - biološki element kakvoće vode u bentosu akumulacija rijeke Drave

Zagreb: University of Zagreb, Faculty of Science, 2013. urn:nbn:hr:217:130773

Keder, Ema

University of Zagreb
Faculty of Science
Department of Biology

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APA 6th Edition

Keder, E. (2013). Alge kremenjašice - biološki element kakvoće vode u bentosu akumulacija rijeke Drave (Master's thesis). Zagreb: University of Zagreb, Faculty of Science. Retrieved from https://urn.nsk.hr/urn:nbn:hr:217:130773

MLA 8th Edition

Keder, Ema. "Alge kremenjašice - biološki element kakvoće vode u bentosu akumulacija rijeke Drave." Master's thesis, University of Zagreb, Faculty of Science, 2013. https://urn.nsk.hr/urn:nbn:hr:217:130773

Chicago 17th Edition

Harvard

Keder, E. (2013). 'Alge kremenjašice - biološki element kakvoće vode u bentosu akumulacija rijeke Drave', Master's thesis, University of Zagreb, Faculty of Science, accessed 19 April 2024, https://urn.nsk.hr/urn:nbn:hr:217:130773

Vancouver

Keder E. Alge kremenjašice - biološki element kakvoće vode u bentosu akumulacija rijeke Drave [Master's thesis]. Zagreb: University of Zagreb, Faculty of Science; 2013 [cited 2024 April 19] Available at: https://urn.nsk.hr/urn:nbn:hr:217:130773

IEEE

E. Keder, "Alge kremenjašice - biološki element kakvoće vode u bentosu akumulacija rijeke Drave", Master's thesis, University of Zagreb, Faculty of Science, Zagreb, 2013. Available at: https://urn.nsk.hr/urn:nbn:hr:217:130773

Cite this item: https://urn.nsk.hr/urn:nbn:hr:217:130773

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Title	Alge kremenjašice - biološki element kakvoće vode u bentosu akumulacija rijeke Drave
Title (english)	Diatoms - biology quality element of_water in benthos of river Drava reservoirs
Author	Ema Keder
Mentor	Anđelka Plenković-Moraj (mentor)
Committee member	Anđelka Plenković-Moraj (predsjednik povjerenstva)
Committee member	Ines Radanović (član povjerenstva)
Committee member	Zora Popović (član povjerenstva)
Committee member	Vesna Petrović Peroković (član povjerenstva)
Granter	University of Zagreb Faculty of Science (Department of Biology) Zagreb
Defense date and country	2013-09-30, Croatia
Scientific / art field, discipline and subdiscipline	NATURAL SCIENCES Biology
Abstract	Dijatomeje ili alge kremenjašice dominantna su komponenta perifitona/bentosa te sastavom i brojnosti vrsta odražavaju fizikalna i kemijska obilježja vodotoka. Istraživanje je provedeno tijekom četrnaest godina, od 1999. do 2012. godine u sustavu akumulacija rijeke Drave (Varaždin, Čakovec i Dubrava), smještenim u sjevernom dijelu Hrvatske. Uzorci bentosa uzorkovani su struganjem akumuliranog perifitona sa potopljenih stabala, kamenja ili šljunka. Za svaki uzorak izračunata je relativna brojnost, a za praćenje promjena unutar zajednica dijatomeja iz dobivenih podataka izračunati su slijedeći indeksi: trofički indeks dijatomeja, opći indeks dijatomeja, Shannon–Wiennerov, Margalefov, Simsonov i Pielou-ov indeks, indeks saprobnosti te ukupan broj vrsta te je ustanovljeno postoje li statistički značajne razlike među njima s obzirom na postaje odnosno godine uzorkovanja. Dobivene vrijednosti dodatno su uspoređene sa fizikalno–kemijskim parametrima vode radi određivanja relevantnosti algi kremenjašica kao indikatora kakvoće vode. Rezultati su pokazali da dolazi do značajnih promjena u sastavu i brojnosti dijatomeja kao i samih vodenih uvjeta. Ukupan broj dijatomeja u prosjeku je niži svake godine, a povećava se pH vrijednost, nutrijenti i trofija proučavanih vodenih staništa.
Abstract (english)	Diatoms are usually the dominant component of periphyton/benthos and they reflect physical and chemical conditions of the water. Investigation was conducted seasonally during the period of fourteen years, from 1999 to 2012 in River Drava system of reservoirs (Varaždin, Čakovec and Dubrava), situated in the North part of Croatia. Samples were taken scraping the sunken trees, stones or pebbles. For each sample relative abundance was calculated. To explore changes inside diatom community based on collected data, several indexes were calculated: Trophic Diatom Index, Generic Diatom Index, Shannon–Wienner Margalefs, Simpsons, Pielou's index, saprobity index and species richness and it was determined if there are any statistical differences between years, sampling points and reservoirs. Results were compared with physical and chemical water parameters to determine relevance of diatoms as indicators for water quality. The results showed that there are significant changes in the composition and abundance of diatoms and also in water conditions. The total number of diatoms in average is lower each year and values of pH, nutrients and trophic level increases in studied aquatic habitats.
Keywords
Keywords (english)
Language	croatian
URN:NBN	urn:nbn:hr:217:130773
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	Access restricted to students and staff of home institution
Terms of use
Repository	Repository of the Faculty of Science
Created on	2017-04-27 09:04:45

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