Dubokomorske praživotinje

undergraduate thesis

• Title (english): Deep sea protozoa
• Author: Ana Crnjak
• Mentor: Renata Matoničkin Kepčija (mentor)
• Granter: University of Zagreb; Faculty of Science; (Department of Biology); Zagreb
• Defense date and country: 2017-09-15, Croatia
• Scientific / art field, discipline and subdiscipline: NATURAL SCIENCES; Biology

Abstract

Dubokomorske praživotinje su veličinom sitni, ali ekološki značajni organizmi dubokomorskih ekosustava. Iako slabo istraženi, poznato je da igraju veliku ulogu u dubokomorskoj mikrobnoj hranidbenoj mreži. Istraživanja dubokomorskih praživotinja provedena su na raznim znanstvenim ekspedicijama. Njihova prisutnost zabilježena je na dubinama do 4000 m, te na području svih svjetskih oceana. Kao najbrojniji pripadnici dubokih mora zabilježeni su pripadnici tri glavne skupine, a to su euglene, trepetljikaši i krednjaci. S posebnim zanimanjem proučavaju se praživotinje koje nastanjuju duboko more u području hidrotermalnih izvora, zbog svoje mogućnosti prilagodbe na ekstremne uvjete tih područja. Kod njih se javljaju i razni primjeri simbioze te zanimljivi načini preživljavanja. U ovom radu kratko je prikazano do kuda se do danas došlo u istraživanju o dubokomorskim praživotinjama te koje se metode koriste. Dan je pregled najčešćih skupina, njihove raznolikosti i brojnosti te njihove uloge u dubokomorskim ekosustavima.

Abstract (english)

Deep sea protozoa are small yet important organisms in deep sea ecosystems. Although poorly researched, they are known to play a major role in deep sea microbial food network. Researches of deep sea protozoa were conducted in various deep sea expeditions. Their presence has been recorded at depths up to 4000 m, in all of the world's oceans. The most abundant are members of three major groups: euglenozoa, ciliates and foraminiferans. There is special interest in protozoa that live in deep sea hydrothermal environments because of their possibility to adjust to extreme conditions. They also provide different examples of symbiosis and interesting survival strategies. In this work, brief overview is given on deep sea protoza research and research methods until now. The most common groups are reviewed as well as, their diversity and abundance with their role in deep sea ecosystems.

• Keywords: dubokomorske praživotinje; dubokomorski ekosustav
• Keywords (english): deep sea protozoa; deep sea ecosystem
• Language: croatian
• URN:NBN: urn:nbn:hr:217:065142
• Study programme: Title: Environmental Sciences; Study programme type: university; Study level: undergraduate; Academic / professional title: sveučilišni/a prvostupnik/prvostupnica (baccalaureus/baccalaurea) struke znanosti o okolišu (sveučilišni/a prvostupnik/prvostupnica (baccalaureus/baccalaurea) struke znanosti o okolišu)
• Type of resource: Text
• File origin: Born digital
• Access conditions: Open access
• Created on: 2017-09-29 07:55:01