Makrozoobentos kao pokazatelj ekološkog potencijala umjetnih stajaćica

doctoral thesis

• Title (english): Macrozoobenthos as an indicator of the ecological potential of constructed lakes
• Author: Natalija Vučković
• Mentor: Zlatko Mihaljević (mentor)
• Committee member: Marko Miliša (predsjednik povjerenstva)
• Committee member: Jasna Lajtner (član povjerenstva)
• Committee member: Dubravka Čerba (član povjerenstva)
• Granter: University of Zagreb; Faculty of Science; (Department of Biology); Zagreb
• Defense date and country: 2021, Croatia
• Scientific / art field, discipline and subdiscipline: NATURAL SCIENCES; Biology
• Universal decimal classification (UDC): 57 - Biological sciences. Physical anthropology. Biodiversity

Abstract

Makrozoobentos je važna komponenta ekosustava umjetnih stajaćica. Makrozoobentos litorala, a naročito umjetnih stajaćica, relativno je slabo istraživan, ponajviše zbog rubnog položaja ovog staništa u vodenom tijelu koji ga, kao i zajednicu koja ga nastanjuje, čini vrlo promjenjivim. Recentna istraživanja su pokazala da usprkos promjenjivim uvjetima, zajednica makrozoobentosa litorala bogatstvom svojti i svojom raznolikošću odražava okolišne parametre i daje pregled ekološkog stanja ili potencijala vodenih tijela. Testirani su utjecaji čimbenika kao što su fizikalno-kemijska obilježja vode, karakter supstrata, dubina, fluktuacija vodostaja, hidromorfološke promjene i zemljišni pokrov na sastav zajednice makrobeskralješnjaka u litoralu umjetnih stajaćica. Od svih okolišnih parametara dubina je bila najmanje značajna. Najveći utjecaj na sastav zajednica makrozoobentosa u Dinaridskoj ekoregiji su imale fluktuacije vodostaja, a u Panonskoj je to bio udio urbanog područja u slivu. Zajednice Dinaridske i Panonske ekoregije međusobno su se značajno razlikovale zbog različitih fizikalno-kemijskih svojstava vode, geoloških podloga i drugih okolišnih parametara.

Abstract (english)

Macrozoobenthos is an essential component of artificial lenthic ecosystems. Littoral macroinvertebrates, especially of constructed lakes, are relatively poorly researched, mostly due to the marginal position of this habitat in the water body which makes it, as well as the community that inhabits it, highly variable. Recent research has shown that despite changing conditions, the littoral macroinvertebrate community reflects environmental parameters with its richness of taxa and its diversity and provides an overview of the ecological status or potential of water bodies. The influence of factors such as physicochemical characteristics of water, substrate character, depth, water level fluctuation, hydromorphological changes and land cover on the composition of the macroinvertebrate community in the littoral zone of the constructed lakes was tested. Of all the environmental parameters, the depth was the least significant. Fluctuations in water levels had the greatest influence on the composition of macrozoobenthos communities in the Dinardic ecoregion, and the percentage of the urban area in the basin was the most significant parameter in the Pannonian ecoregion. The communities of the Dinaric and Pannonian ecoregions differed significantly due to different physicochemical properties of water, geological substrates and other environmental parameters.

• Keywords: Litoral; hidromorfologija; zemljišni pokrov; fluktuacije vodostaja; dubina
• Keywords (english): littoral; hydromorphology; land cover; water fluctuations; depth
• Language: croatian
• URN:NBN: urn:nbn:hr:217:251464
• Promotion: 2021
• Study programme: Title: Biology; Study programme type: university; Study level: postgraduate; Academic / professional title: doktor/doktorica znanosti, područje prirodnih znanosti, polje biologija (doktor/doktorica znanosti, područje prirodnih znanosti, polje biologija)
• Type of resource: Text
• File origin: Born digital
• Access conditions: Open access
• Created on: 2021-01-28 11:29:53