Mikrobna zajednica u sedimentima livada morskih cvjetnica Cymodocea nodosa i Zostera noltii u priobalju zapadne Istre

master's thesis

• Title (english): Microbial community in the sediments of seagrasses Cymodocea nodosa and Zostera noltii in the coastal area of western Istria
• Author: Ivan Podolšak
• Mentor: Kristina Pikelj (mentor)
• Mentor: Paolo Paliaga (mentor)
• Committee member: Kristina Pikelj (predsjednik povjerenstva)
• Committee member: Blanka Cvetko Tešović (član povjerenstva)
• Committee member: Dražen Kurtanjek (član povjerenstva)
• Granter: University of Zagreb; Faculty of Science; (Department of Geology); Zagreb
• Defense date and country: 2022-02-25, Croatia
• Scientific / art field, discipline and subdiscipline: NATURAL SCIENCES; Geology; Geology and Paleontology

Abstract

U ovom diplomskom radu analizirani su uzorci sedimenta, morskih cvjetnica i algi, te je
određena brojnost mikrobne zajednice tijekom proljeća, ljeta i jeseni 2021. g., i to u
uvalama Ribnjak, Funtana i Veštar na zapadnoj obali Istre. Karakteristike sedimenta u
uvalama odraz su izloženosti taložnog okoliša i različitog donosa materijala s kopna.
Stanje livada cvjetnica i s njime povezana brojnost mikrobne zajednice su pod utjecajem
čovjeka i karakteristika sedimenta. Uvala Ribnjak je pod manjim antropogenim utjecajem,
a sadrži muljevit sediment i očuvanu livadu cvjetnica. U uvali Veštar livada u karbonatnom
pijesku je značajnije devastirana, vjerojatno radi turističkih aktivnosti, a mikrobna
zajednica je najmanje zastupljena. Na uglavnom muljevitom dnu uvale Funtana livadu
cvjetnica degradira utjecaj invazivne alge, a moguć je i utjecaj turističkih aktivnosti.

Abstract (english)

In this thesis sediment, seagrass, and algae together with microbial abundancy were
analysed in Ribnjak, Funtana, and Veštar Bays along the western Istrian coast during
spring, summer and, autumn 2021. Sediment characteristics in all bays are the result of
sedimentary environment exposure together with various inputs of terrigenous material.
Seagrass meadow conditions and related microbial abundancies reflect the anthropogenic
influence and sediment nature. Ribnjak Bay with muddy sea bottom and seagrass meadow
in good condition is the least affected by human activities. Veštar Bay meadow, developed
in carbonate sand, is significantly degraded, probably due to the tourism, while its
microbial community is of the lowest abundance. Mostly muddy sea bottom of the Funtana
Bay is covered by a partially degraded seagrass meadow, probably due to the competition
of invasive algae, while touristic activities is not excluded.

• Keywords: Mikrobna zajednica; morske cvjetnice; invazivna vrsta; zapadna Istra
• Keywords (english): microbial community; seagrass meadows; invasive species; western Istria
• Language: croatian
• URN:NBN: urn:nbn:hr:217:206326
• Study programme: Title: Graduate university study of Geology; Study programme type: university; Study level: graduate; Academic / professional title: magistar/magistra geologije (magistar/magistra geologije)
• Type of resource: Text
• File origin: Born digital
• Access conditions: Open access; Embargo expiration date: 2024-02-05
• Created on: 2022-10-19 07:07:18