Jesenske promjene sedimentoloških i biogeomorfoloških karakteristika plaže Lojišće (Dugi Otok)

master's thesis

• Title (english): Autumn changes of sedimentological and biogeomorphological characteristics of the Lojišće beach (Dugi Otok Island)
• Author: Martina Petrinjak
• Mentor: Kristina Pikelj (mentor)
• Committee member: Kristina Pikelj (predsjednik povjerenstva)
• Committee member: Marijan Kovačić (član povjerenstva)
• Committee member: Petar Kružić (član povjerenstva)
• Committee member: Nenad Buzjak (član povjerenstva)
• Committee member: Ivan Čanjevac (član povjerenstva)
• Granter: University of Zagreb; Faculty of Science; (Department of Biology); Zagreb
• Granter: University of Zagreb; Faculty of Science; (Department of Geology); Zagreb
• Defense date and country: 2023-02-21, Croatia
• Scientific / art field, discipline and subdiscipline: NATURAL SCIENCES; Biology

Abstract

Tijekom tri jesenska mjeseca (listopad, studeni i prosinac) 2022.godine provedeno je
praćenje profila i morfologije plaže Lojišće na Dugom otoku, kako bi se utvrdile promjene
količine sedimenta i naslaga cvjetnice Posidonia oceanica. Sediment plaže Lojišće je
biogeni karbonatni slabo šljunkoviti pijesak porijeklom iz mora. Profiliranje plaže i izrada
3D modela pokazali su da je plaža Lojišće u najvećoj mjeri pod utjecajem valova juga.
Valovi juga unose biogeni sediment i ostatke posidonije iz plitkog mora na plažu i u
istoimenu uvalu. Udio sedimenta u banketima posidonije se kreće od preko 300 do preko
2000 kg u 1m3
, što ukazuje na važnost banketa posidonije u biogeomorfološkim
strukturama plaže.

Abstract (english)

During three autumn months (October, November and December) in 2022, beach profiling
and morphology monitoring of the Lojišće beach on the Dugi otok Island was carried out,
in order to determine the changes in the amount of sediment and Posidonia oceanica
banquettes. The sediment of the Lojišće beach is a biogenic carbonate slightly gravelly
sand of marine origin. Beach profiles and 3D models showed that Lojišće beach is mostly
affected by the Scirroco waves. These waves carry in the biogenic sediment and posidonia
debris from the shallow sea to the beach and into the Lojišće Bay. The share of sand in
posidonia banquettes ranges from over 300 to over 2000 kg in 1m3
, which indicates the
importance of posidonia banquettes in the biogeomorphological structures of the beach.

• Keywords: plaža Lojišće; pijesak; posidonija; morfološke promjene; promjene; erozija; jugo
• Keywords (english): Lojišće beach; sand; posidonia; morphological changes; erosion; southeastern wind
• Language: croatian
• URN:NBN: urn:nbn:hr:217:817174
• Study programme: Title: 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 resource: Text
• File origin: Born digital
• Access conditions: Open access; Embargo expiration date: 2025-02-21
• Created on: 2023-03-13 10:01:02