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master's thesis
Utjecaj globalnih klimatskih promjena na greben koralja Cladocora caespitosa (Linnaeus, 1767) u Nacionalnom parku Mljet
Zagreb: University of Zagreb, Faculty of Science, 2019. urn:nbn:hr:217:747614
Guić, Rita
University of Zagreb
Faculty of Science
Department of Biology

Institutional repository: Repository of the Faculty of Science

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Guić, R. (2019). Utjecaj globalnih klimatskih promjena na greben koralja Cladocora caespitosa (Linnaeus, 1767) u Nacionalnom parku Mljet (Master's thesis). Zagreb: University of Zagreb, Faculty of Science. Retrieved from https://urn.nsk.hr/urn:nbn:hr:217:747614

Guić, Rita. "Utjecaj globalnih klimatskih promjena na greben koralja Cladocora caespitosa (Linnaeus, 1767) u Nacionalnom parku Mljet." Master's thesis, University of Zagreb, Faculty of Science, 2019. https://urn.nsk.hr/urn:nbn:hr:217:747614

Guić, Rita. "Utjecaj globalnih klimatskih promjena na greben koralja Cladocora caespitosa (Linnaeus, 1767) u Nacionalnom parku Mljet." Master's thesis, University of Zagreb, Faculty of Science, 2019. https://urn.nsk.hr/urn:nbn:hr:217:747614

Guić, R. (2019). 'Utjecaj globalnih klimatskih promjena na greben koralja Cladocora caespitosa (Linnaeus, 1767) u Nacionalnom parku Mljet', Master's thesis, University of Zagreb, Faculty of Science, accessed 25 August 2024, https://urn.nsk.hr/urn:nbn:hr:217:747614

Guić R. Utjecaj globalnih klimatskih promjena na greben koralja Cladocora caespitosa (Linnaeus, 1767) u Nacionalnom parku Mljet [Master's thesis]. Zagreb: University of Zagreb, Faculty of Science; 2019 [cited 2024 August 25] Available at: https://urn.nsk.hr/urn:nbn:hr:217:747614

R. Guić, "Utjecaj globalnih klimatskih promjena na greben koralja Cladocora caespitosa (Linnaeus, 1767) u Nacionalnom parku Mljet", Master's thesis, University of Zagreb, Faculty of Science, Zagreb, 2019. Available at: https://urn.nsk.hr/urn:nbn:hr:217:747614

Metadata
TitleUtjecaj globalnih klimatskih promjena na greben koralja Cladocora caespitosa (Linnaeus, 1767) u Nacionalnom parku Mljet
Title (english)The influence of global climate change on Cladocora caespitosa bank in the National Park Mljet
AuthorRita Guić
MentorPetar Kružić (mentor)
Committee memberPetar Kružić (predsjednik povjerenstva)
Committee memberBlanka Cvetko Tešović (član povjerenstva)
Committee memberIvan Čanjevac (član povjerenstva)
Committee memberAna Galov (član povjerenstva)
Committee memberAlan Moro (član povjerenstva)
GranterUniversity of Zagreb
Faculty of Science
(Department of Biology)
Zagreb
Defense date and country2019-03-07, Croatia
Scientific / art field,
discipline and subdiscipline		NATURAL SCIENCES
Biology
Abstract
Tijekom istraživanja u 2018. godini utvrđene su povećane temperature mora (temperaturne anomalije) do 29 °C u Velikom jezeru (NP Mljet). Negativan utjecaj povišene temperature mora vidljiv je prvenstveno kao odumiranje (nekroza) tkiva na kamenim koraljima te kao mortalitet jedinki i smanjenje populacija. Usporedba promjena u Velikom jezeru u zadnjih 20 godina kod grebena koralja pokazuje pozitivnu korelaciju između povišenja temperature mora i povećanja nekroze tkiva i smrtnosti koralja. Mjerenjem brzine rasta čaški koralja radiografskom metodom utvrđene su manje vrijednosti brzine rasta za razdoblje od 2002. do 2018. godine u odnosu na razdoblje od 1980. do 2002. godine. Rast čaški kolonija pokazuje pozitivnu korelaciju s prosječnom godišnjom temperaturom mora u Velikom jezeru. Brzina rasta vrste Cladocora caespitosa na grebenu izmjerena u ovom radu (od 1,75 mm do 5,67 mm godišnje) podudara se s rezultatima istraživanja ove vrste u Sredozemnom moru. Koralj C. caespitosa pokazuje stupnjeve oštećenja populacija vezano za temperaturne anomalije. Uz nekrozu tkiva polipa koralja utvrđeno je i izbacivanje simbiontskih zooksantela (engl. coral bleaching), što je dokaz temperaturnog šoka. Značajan je udio novih nekroza unutar istraživanih kvadrata na grebenu utvrđenih prilikom ovog istraživanja tijekom 2018. godine. Invazivna alga Caulerpa cylindracea i riba papigača Sparisoma cretense velike su prijetnje grebenu koralja C. caespitosa u Velikom jezeru.
Abstract (english)
The research conducted in 2018. showed an increased sea temperature (temperature anomaly) which reached 29°C in Veliko jezero (Mljet National Park). Negative impact of an increased sea temperature is primarily visible through tissue necrosis of stony corals. Comparison of changes in Veliko jezero in the last 20 years on coral reef shows a positive correlation between increased sea temperature and necrosis of corals and mortality. Measuring the growth rate of the corals using X-ray method, lower values of growth rate for the period from 2002 to 2018 were determined compared to the period from 1980 to 2002. The growth of the coral colony shows a positive correlation with the average annual sea temperature in Veliko jezero. The growth rate of the Cladocora caespitosa species on the reef measured in this paper (from 1.75 mm to 5.67 mm per year) is consistent with the results gathered in the study in the Mediterranean Sea. Coral C. caespitosa shows degrees of population damage due to temperature anomalies. Along with necrosis, coral bleaching was also detected, which is a proof of temperature shock. Significant share of new necrosis was established within the investigated squares at the reef during this research in 2018. Invasive algae Caulerpa cylindracea and parakeet fish Sparisoma cretense are great threats to the coral reef of C. caespitosa in Veliko jezero.
Keywords
Keywords (english)
Languagecroatian
URN:NBNurn:nbn:hr:217:747614
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 on2019-04-10 09:35:03