Makrozoobentos i makrozooplankton Prošćanskog jezera i jezera Kozjak

master's thesis

• Title (english): Macrozoobenthos and macrozooplankton in Prošće and Kozjak lakes
• Author: Mario Rumišek
• Mentor: Zlatko Mihaljević (mentor)
• Mentor: Ivančica Ternjej (mentor)
• Committee member: Zlatko Mihaljević (predsjednik povjerenstva)
• Committee member: Zlatko Liber (član povjerenstva)
• Committee member: Jasna Hrenović (član povjerenstva)
• Committee member: Marija Ivković (član povjerenstva)
• Granter: University of Zagreb; Faculty of Science; (Department of Biology); Zagreb
• Defense date and country: 2019-09-27, Croatia
• Scientific / art field, discipline and subdiscipline: NATURAL SCIENCES; Biology

Abstract

Zajednica makrozoobentosa litorala i makrozooplanktona istraživana je u Prošćanskom jezeru i
jezeru Kozjak Nacionalnog parka Plitvička jezera. Uzorci makrozoobentosa sakupljani su ručnom
bentos mrežom do 1 m dubine na pet postaja u oba jezera, a uzorci makrozooplanktona potopnom
pumpom na svakih 5 m dubine od površine vode do najdublje točke jezera. Uz sakupljanje
uzoraka mjereni su i fizikalno – kemijski parametri. Istraživanje makrozoobentosa provedeno je u
ljeto 2018. godine, a makrozooplanktona u vegetacijskom razdoblju 2009. godine. Cilj
istraživanja bio je usporediti sastav i strukturu zajednica makrozoobentosa i makrozooplanktona
između dva najveća jezera u NP Plitvička jezera, interakcije zajednica s obzirom na stupanj
trofije te potencijal makrozoobentosa u indikaciji hidromorfoloških promjena. Raznolikost
makrozoobentosa veća je u jezeru Kozjak nego li u Prošćanskom jezeru, usprkos većoj
pokrovnosti makrofita u Prošćanskom jezeru. Jezero Kozjak ima veću brojnost i biomasu
makrozooplanktona u usporedbi s Prošćanskim jezerom. Raznolikost i trofička struktura
makrozooplanktona može biti pokazatelj stupnja trofije jezera.

Abstract (english)

The macrozooplankton and littoral macrozoobenthos community were investigated in the Prošće
and Kozjak Lakes of the Plitvice Lakes National Park. Macrozoobenthos samples in the littoral
zone were collected by hand net up to 1 m depth at five stations in both lakes, and
macrozooplankton samples at every 5 m depth from the water surface to the deepest point of the
lake. In addition to sample collection, physicochemical water parameters were also measured.
Macrozoobenthos was sampled in the summer of 2018, and macrozooplankton in the vegetation
period of 2009. The aim of the study was to compare the composition and structure of
macrozoobenthos and macrozooplankton communities between the two largest lakes in the
Plitvice Lakes National Park, the interactions of communities with respect to the degree of
trophy, and the potential of macrozoobenthos in indicating hydromorphological changes. The
diversity of macrozoobenthos is greater in Kozjak Lake in comparison with Prošće Lake. Greater
coverage of macrophytes does not necessarily lead to greater abundance and diversity of
macrozoobenthos. Kozjak Lake has a higher abundance and biomass of macrozooplankton
compared to Prošće Lake. The diversity and trophic structure of macrozooplankton can be
indicative of the trophy level of the lake.

• Keywords: NP Plitvička jezera; stupanj trofije; litoral; hidromorfološke promjene
• Keywords (english): Plitvice Lakes National Park; trophy; littoral; hydromorphological changes
• Language: croatian
• URN:NBN: urn:nbn:hr:217:414395
• Study programme: Title: Ecology; Study programme type: university; Study level: graduate; Academic / professional title: magistar/magistra ekologije i zaštite prirode (magistar/magistra ekologije i zaštite prirode)
• Type of resource: Text
• File origin: Born digital
• Access conditions: Open access
• Created on: 2019-10-16 07:20:49