Impact of temperature changes on coral colonies in the coraligenic community on the cliffs in the Kornati National Park

Kovačev, Agata (2014) Impact of temperature changes on coral colonies in the coraligenic community on the cliffs in the Kornati National Park. Diploma thesis, Faculty of Science > Department of Biology.

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Abstract

Sudden changes in environmental factors, primarily temperature, are the main reason for the mass mortalities of benthic organisms that have been recorded in the last ten years. Research and systematic observation of such communities is the main way to obtain a better insight into the state of coralligenous biocenosis and the changes that are happening in the biocenosis under the influence of global climate change. The field research was conducted at five different stations within the Kornati National Park. The main objective was to (i) determine and record the types of corals that are most endangered to increased sea temperatures, (ii) determine the types of indicators of temperature changes and to assess the presence of endangered and legally protected coral within coralligenous community and (iii) determine the conditions prevailing in communities, and thus their possible vulnerability. We found nine different biocenosis with 57 species of coral. The largest number of coral, a total of 41 species, was recorded at the station Mali Obručan, while the lowest number, 34 species, found in the Velika Panitula station. The most common coral species in coralligenous biocenosis are: Caryophyllia inornata, Eunicella cavolini, Leptopsammia pruvoti and Parazoanthus axinellae. At all stations showed a partial reduction of the population (10 to 20% of dead individuals) and visible adverse effect of elevated temperature. The result will be used as a basis for further research and monitoring of biocenosis and corals on the cliffs within the Kornati National Park.

Item Type: Thesis (Diploma thesis)
Keywords: biodiversity, global warming, biocenosis, endangerment, corals
Supervisor: Kružić, Petar
Date: 2014
Number of Pages: 57
Subjects: NATURAL SCIENCES > Biology
Divisions: Faculty of Science > Department of Biology
Depositing User: Silvana Šehić
Date Deposited: 24 Nov 2014 12:49
Last Modified: 24 Nov 2014 12:49
URI: http://digre.pmf.unizg.hr/id/eprint/3349

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