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master's thesis
Utjecaj raznolikosti staništa litoralne zone na strukturu makrozoobentosa plitkih jezera
Zagreb: University of Zagreb, Faculty of Science, 2016. urn:nbn:hr:217:371188
Ercegovac, Zvonimir
University of Zagreb
Faculty of Science
Department of Biology

Institutional repository: Repository of the Faculty of Science

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Ercegovac, Z. (2016). Utjecaj raznolikosti staništa litoralne zone na strukturu makrozoobentosa plitkih jezera (Master's thesis). Zagreb: University of Zagreb, Faculty of Science. Retrieved from https://urn.nsk.hr/urn:nbn:hr:217:371188

Ercegovac, Zvonimir. "Utjecaj raznolikosti staništa litoralne zone na strukturu makrozoobentosa plitkih jezera." Master's thesis, University of Zagreb, Faculty of Science, 2016. https://urn.nsk.hr/urn:nbn:hr:217:371188

Ercegovac, Zvonimir. "Utjecaj raznolikosti staništa litoralne zone na strukturu makrozoobentosa plitkih jezera." Master's thesis, University of Zagreb, Faculty of Science, 2016. https://urn.nsk.hr/urn:nbn:hr:217:371188

Ercegovac, Z. (2016). 'Utjecaj raznolikosti staništa litoralne zone na strukturu makrozoobentosa plitkih jezera', Master's thesis, University of Zagreb, Faculty of Science, accessed 22 November 2024, https://urn.nsk.hr/urn:nbn:hr:217:371188

Ercegovac Z. Utjecaj raznolikosti staništa litoralne zone na strukturu makrozoobentosa plitkih jezera [Master's thesis]. Zagreb: University of Zagreb, Faculty of Science; 2016 [cited 2024 November 22] Available at: https://urn.nsk.hr/urn:nbn:hr:217:371188

Z. Ercegovac, "Utjecaj raznolikosti staništa litoralne zone na strukturu makrozoobentosa plitkih jezera", Master's thesis, University of Zagreb, Faculty of Science, Zagreb, 2016. Available at: https://urn.nsk.hr/urn:nbn:hr:217:371188

Metadata
TitleUtjecaj raznolikosti staništa litoralne zone na strukturu makrozoobentosa plitkih jezera
Title (english)Impact of the littoral zone heterogeneity on the macroinvetebate assemblage in shallow lakes
AuthorZvonimir Ercegovac
MentorMaria Špoljar (mentor)
Committee memberMaria Špoljar (predsjednik povjerenstva)
Committee memberVlasta Ćosović (član povjerenstva)
Committee memberNeven Bočić (član povjerenstva)
Committee memberMarija Gligora Udovič (član povjerenstva)
Committee memberNenad Tomašić (član povjerenstva)
GranterUniversity of Zagreb
Faculty of Science
(Department of Biology)
Zagreb
Defense date and country2016-02-26, Croatia
Scientific / art field,
discipline and subdiscipline		NATURAL SCIENCES
Biology
Abstract
Istraživanje makrozoobentosa provedeno je tijekom 2013. godine u dva vodena tijela različitog postanka, morfometrije, stupnja trofije, pokrovnosti i sastava makrofita: rukavcu rijeke Sutle i mrtvaji Škrčev kut. Ciljevi istraživanja makrozoobentosa bili su utvrditi: 1. prostorne oscilacije raznolikosti i brojnosti makrozoobentosa u staništima s različitom pokrovnošću makrofita; 2. prostorne i vremenske oscilacije veličinskih kategorija makrozoobenosa; 3. trofičku strukturu i potencijalnu ulogu makrozoobentosa u hranidbenoj mreži biocenoza plitkih jezera. Determinirano je 57 svojti, a raznolikosti su najviše doprinijeli predstavnici skupine Heteroptera (12 svojti) i Diptera (11 svojti). Najveća brojnost i raznolikost zabilježena je u Gornjem bazenu rukavca Sutle s prosječnom abundancijom od 273 ± 642 jed./m2 i 24 svojte, dok su najmanja brojnost i raznolikost zabilježeni u litoralu mrtvaje Škrčev kut s prosječnom abundancijom od 80 +- 211 jed./m2 i 13 svojti. Na postajama izrazito male dubine (< 1m) i visoke mutnoće obaju vodenih tijela, prevladavale su jedinke većih dimenzija od 4 − 6 mm, dok su u litoralu veće raznolikosti staništa sa submerznim makrofitima Gornjeg bazena Sutle prevladavale manje jedinke (duljine 0,5-3 mm). Detritivorni Diptera su imali najveći udio u abundanciji na postajama visoke mutnoće i niske raznolikosti staništa, dok su na postajama s bogatim pokrovom makrofita u litoralnoj zoni, pored Diptera značajan udio u brojnosti postigli i Ephemeroptera, predstavljeni s brojnim strugačima. Udio predatora bio je najveći na postaji SGB, a najmanji na postaji ŠK. Vremenske promjene u strukturi mzb mogle su se uočiti, ali nisu bile statistički značajne. Rezultati ovoga istraživanja ukazuju da su biotički čimbenici značajnije utjecali na strukturu makrozoobentosa u odnosu na abiotičke. Općenito se brojnost i raznolikost makrozoobentosa povećavala s povećanjem raznolikosti staništa, a smanjivala s povećanjem stupnja trofije jezera i smanjenjem raznolikosti litoralne zone što je ujedno utjecalo i na hranidbenu i veličinsku strukturu makrozoobentosa.
Abstract (english)
The study of macrozoobenthos was conducted during 2013 in two water bodies of differing origins, morphometry, trophy degree, macrophyte coverage and composition: backwater of the Sutla River and oxbow lake Škčev kut. The study aims were to determine: 1. spatial oscillations of macroinvertebrate diversity and abundance in habitats of differing macrophyte coverage; 2. spatial and temporal fluctuations of differing macroinvertebrate size categories; 3. trophic structure and the potential role of macroinvertebrates in the food webs of shallow lakes. 57 taxa were determined. The diversity was mostly contributed by representatives of Heteroptera (12 taxa) and Diptera (11 taxa). The greatest abundance and diversity were observed in the Upper Basin of the river Sutla, with an average abundance of 273 ± 642 ind./m2 and 24 taxa, whereas the lowest umber and diversity were observed in the littoral of the Škrčev kut, with an average abundance of 80 ± 211 ind./m2 and 13 taxa. At the extremely low depth ( < 1m) and high turbidity study sites at both water bodies, individuals larger than 4 − 6 mm were dominant, whereas in the littoral of the Upper Sutla river Basin, which exhibited greater habitat diversity with submerged macrophytes, smaller individuals prevailed (0.5 − 3 mm). At the habitats of high turbidity and low habitat diversity, detritivorous Diptera were most abundant, whereas at the habitats with rich macrophyte cover in the littoral zone, besides Diptera, most abundant were Ephemeroptera, presented with numerous scrapers. Abundance of predators was highest on SGB and lowest on the ŠK study site. Results of this study indicate that biotic interactions significantly affected the macrozoobenthos structure in comparison to abiotic parameters. In general, the abundance and diversity of macroinvertebrates increased with habitat diversity, and decreased with increasing trophic level and reducing the diversity of littoral zone, thus influenced on the feeding and size structure of macroinvertebrates of the lake.
Keywords
Keywords (english)
Languagecroatian
URN:NBNurn:nbn:hr:217:371188
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 on2017-04-27 12:56:57