Primarni proizvođači u moru

undergraduate thesis

• Title (english): Primary producers in the sea
• Author: Ana Petrović
• Mentor: Zrinka Ljubešić (mentor)
• Granter: University of Zagreb; Faculty of Science; (Department of Biology); Zagreb
• Defense date and country: 2024-09-11, Croatia
• Scientific / art field, discipline and subdiscipline: NATURAL SCIENCES; Biology

Abstract

Primarna proizvodnja važan je proces u kojem iz anorganske tvari nastaje organska, a provode ju primarni proizvođači. Primarni proizvođači u moru su fitoplankton, makroalge i morske cvjetnice te su odgovorni za 46,2 % ukupne primarne proizvodnje. Fitoplankton, fotosinteski mikroorganizmi koji se ne mogu aktivno kretati, već lebde u vodenom stupcu čine većinom cijanobakterije, dijatomeje, dinoflagelati, kriptofiti, haptofiti i zelene alge. Makroalge su višestanični makroskopski organizmi koji... More žive u bentosu, a čine ih smeđe, zelene i crvene alge. Morske cvjetnice su biljke koje su se u potpunosti prilagodile životu u moru, te su važna mjesta primarne proizvodnje, ali i važna staništa za brojne vrste jer im pružaju mrijestilište, hranilište i sklonište. U Jadranskom moru možemo naći četiri morske cvjetnice: Posidonia oceanica, Zostera marina, Zostera noltii i Cymodocea nodosa. U fitoplanktonu Jadrana najveći broj vrsta su dijatomeje zatim ih slijede dinoflagelati, haptofita i krizoficeje. Sastav fitoplanktonske zajednice se kontinuirano prati, te se koriste nove metode zahvaljujući kojima se otkrivaju nove vrste, ili pak revidiraju postojeće liste. Upotrebom metabarkodiranja analizira se okolišna DNA, izoliraju se stanice i uspostavljaju kulture što daje potpuniju sliku fitoplanktona i rezultate koji su komplementarni onima dobivenim tradicionalnom mikroskopijom i baza su za buduća istraživanja. Less

Abstract (english)

Primary production is an important process in which inorganic matter is transformed into organic matter, and it is carried out by primary producers. The primary producers in the sea are phytoplankton, macroalgae and seagrasses and are responsible for 46.2% of the total primary production. Phytoplankton, photosynthetic microorganisms that cannot actively move, but float in the water column, are mostly cyanobacteria, diatoms, dinoflagellates, cryptophytes, haptophytes and green algae.... More Macroalgae are multicellular macroscopic organisms that live in the benthos, consisting of brown, green and red algae. Seagrasses are plants that have fully adapted to life in the sea, and are important places of primary production, but also important habitats for numerous species because they provide them with spawning grounds, feeding grounds and shelter. In the Adriatic Sea, we can find four marine flowering plants: Posidonia oceanica, Zostera marina, Zostera noltii and Cymodocea nodosa. In the phytoplankton of the Adriatic, the largest number of species are diatoms, followed by dinoflagellates, haptophytes and chrysophyceae. The composition of the phytoplankton community is continuously monitored, and new methods are used, thanks to which new species are discovered, or existing lists are revised. Using metabarcoding, environmental DNA is analyzed, cells are isolated and cultures are established, which gives a more complete picture of phytoplankton and results that are complementary to those obtained by traditional microscopy and are the basis for future research. Less

• Keywords: primarna proizvodnja; fitoplankton; alge; morske cvjetnice; Jadransko more
• Keywords (english): primary production; cyanobacteria; algae; seagrasses; Adratic sea
• Language: croatian
• URN:NBN: urn:nbn:hr:217:194825
• Study programme: Title: Biology; Study programme type: university; Study level: undergraduate; Academic / professional title: sveučilišni/a prvostupnik/prvostupnica (baccalaureus/baccalaurea) biologije (sveučilišni/a prvostupnik/prvostupnica (baccalaureus/baccalaurea) biologije)
• Type of resource: Text
• File origin: Born digital
• Access conditions: Open access
• Created on: 2024-09-18 10:45:34