Exploration of microbial communities from Icelandic marine waters using metagenomics

dc.contributorHáskóli Íslandsis
dc.contributorUniversity of Icelanden
dc.contributor.advisorViggó Þór Marteinsson, María Guðjónsdóttir
dc.contributor.authorJégousse, Clara
dc.contributor.departmentMatvæla- og næringarfræðideild (HÍ)is
dc.contributor.departmentFaculty of Food Science and Nutrition (UI)en
dc.contributor.schoolHeilbrigðisvísindasvið (HÍ)is
dc.contributor.schoolSchool of Health Sciences (UI)en
dc.date.accessioned2026-03-02T14:26:48Z
dc.date.available2026-03-02T14:26:48Z
dc.date.issued2024-12-18
dc.description.abstractMarine microorganisms are vital in maintaining ocean health by supporting food webs and regulating biogeochemical cycles. The ocean around Iceland, where warm Atlantic and cold Arctic currents meet, is a unique marine environment. While primary production in Icelandic waters has been monitored since the 1950s with microscopy and satellite imaging, molecular insights into microbial taxonomic and metabolic diversity remain limited. This thesis investigates the microbial communities in Icelandic marine waters using metagenomics. The main objectives were to find out what species can be detected in Icelandic marine waters? in what proportions? what is their potential function in the marine ecosystem? and how do environmental factors shape their distribution? The findings of this thesis offer insights into the relationships between microbial communities and their environments, establishing a foundation for future research. The publicly available datasets from this study serve as a baseline, supporting ecosystem modelling and sustainable management of Icelandic marine waters in a changing climate.en
dc.description.abstractÖrverur gegna lykilhlutverki í því að viðhalda heilbrigði og fæðukerfi hafsins og við að stýra næringarefnahringrás hafsins. Við Íslandsstrendur, þar sem heitir Atlantshafsstraumar og kaldir norðurskautsstraumar mætast, myndast einstakt umhverfi og lífríki sjávar. Þó svo að rannsóknir hafi staðið yfir á frumframleiðni frá miðju síðustu aldar með aðstoð smásjáa og gervitunglmynda hafa rannsóknir á flokkunarfræði örvera á umhverfiserfðamengjum í íslenskri lögsögu verið takmarkaðar. Meginmarkmið doktorsrannsóknarinnar var því að skoða hvaða tegundir örvera finnast í íslenskri lögsögu, í hvaða hlutföllum, hvert hlutverk þeirra er í vistríki sjávar og hvaða umhverfisþættir hafa áhrif á dreifingu þeirra?is
dc.description.sponsorshipThe Icelandic Research Fund (Rannís) Grant of Excellence Nb. 163266-051
dc.format.extent196
dc.identifier.urihttps://hdl.handle.net/20.500.11815/8031
dc.language.isoen
dc.publisherUniversity of Iceland, School of Health Sciences, Faculty of Food Science and Nutrition
dc.rightsinfo:eu-repo/semantics/embargoedAccess
dc.subjectDoktorsritgerðiris
dc.subjectSjávarlíffræðiis
dc.subjectÖrverufræðiis
dc.subjectMarine microorganisms
dc.subjectMarine biology
dc.subjectIceland
dc.titleExploration of microbial communities from Icelandic marine waters using metagenomics
dc.typeinfo:eu-repo/semantics/doctoralThesis

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