Prostorna varijacija strukturnih i morfoloških karakteristika livada morske cvjetnice Posidonia oceanica (L.) Delile južnog dijela Istre

master's thesis

• Title (english): Spatial variation of structural and morphological features in Posidonia oceanica (L.) Delile structural of the southern part of Istria peninsula
• Author: Ilenia Sudulić
• Mentor: Petar Kružić (mentor)
• Committee member: Petar Kružić (predsjednik povjerenstva)
• Committee member: Sven Jelaska (član povjerenstva)
• Committee member: Ana Galov (član povjerenstva)
• Committee member: Jasna Lajtner (član povjerenstva)
• Granter: University of Zagreb; Faculty of Science; (Department of Biology); Zagreb
• Defense date and country: 2021-02-08, Croatia
• Scientific / art field, discipline and subdiscipline: NATURAL SCIENCES; Biology

Abstract

Livade endemske vrste Posidonia oceanica (L.) Delile najveći je ekosustav Sredozemnog mora koji se prostire uzduž najrazvijenije stepenice Jadrana koju karakterizira niska razina kolebanja temperature, saliniteta i stalna izmjena morskih voda. Uslijed velike raznolikosti vrsta, biocenoza infralitoralnih alga i biocenoza livada morskih cvjetnica dvije su najugroženije biocenoze uvelike zbog izraženog antropogenog utjecaja koji je pridonio smanjenju pokrova ove zaštićene vrste. Cilj istraživanja je procijeniti kvalitetu i stupanj ugroženosti livada endemske morske cvjetnice P. oceanica na petnaest različitih postaja unutar južnog dijela istarskog poluotoka: zaštićeno područje Nacionalnog parka Brijuni i Javne ustanove Kamenjak, te nezaštićeno područje uz naselja Banjole i Medulin. Dobiveni podaci služit će za daljnji monitoring navedenih staništa kao i za procjenu mogućih negativnih utjecaja koji ugrožavaju kvalitetu morske cvjetnice. Porocjenila se zastupljenost pojedinih vrsta unutar livada, posebno onih ugroženih i zakonom zaštićenih, a dugoročni cilj projekta je aktivna zaštita morskih vrsta i staništa najproduktivnijeg morskog ekosustava koji predstavlja jednu od glavnih žarišta biološke raznolikosti u Sredozemnom moru. Prema tablici kategorizacije morskih cvjetnica sve istraživane livade kategorizirane su kao „livade vrlo rijetke gustoće“ osim livade postaja Polje i Porer koje pripadaju kategoriji „livada rijetke gustoće“. Naime, uspoređujući najučestalije čimbenike ugroženosti, ustanovljeno je da NP Brijuni ima najbolji oblik zaštite.

Abstract (english)

Meadows of the endemic species Posidonia oceanica (L.) Delile is the largest marine ecosystem of the Mediterranean Sea inhabitings the most developed marine zone of the Adriatic Sea which is characterized by low levels of temperature and salinity fluctuations but also by the constant exchange of sea water. Due to the great diversity of species, the biocenosis of infralittoral algae and the biocenosis of seagrass meadows are the two most endangered biocenoses as a consequences of anthropogenic activities that reduced the total cover of this protected species. The aim of the research is to assess the quality and the level of endangerment of the endemic P. oceanica at fifteen different stations within the southern part of the Istrian peninsula: the protected area of National Park Brijuni and Kamenjak Public Institution, and the unprotected area of Banjole and Medulin. The obtained data will be used for further monitoring of these habitats as well as for the assessment of possible negative impacts that threaten the quality of P.oceanica. The research is also focused on assessing the presence of certain species within the meadows, especially those which are endangered and legally protected. The long-term goal of the project is the active protection of marine species and habitats of the most productive marine ecosystem, which is one of the main hotspots of biodiversity in the Mediterranean Sea. According to the table of categorization of sea meadows, all meadows are categorized as "meadows of very low density" except for the meadows of Polje and Porer which belong to the category of "meadows of low density". Comparing the most common vulnerability factors, it was found that NP Brijuni has the best form of protection.

• Keywords: morska cvjetnica; Posidonia oceanica; Istra; Jadransko more
• Keywords (english): marine phanerogame; Posidonia oceanica; Istria; Adriatic Sea
• Language: croatian
• URN:NBN: urn:nbn:hr:217:792639
• 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: 2021-03-16 12:14:13