Browsing Doctoral Theses / Doktorsavhandlingar Institutionen för marina vetenskaper by Title
Now showing items 17-35 of 35
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New Perspectives in Multi-trophic Aquaculture
(2021-05-26)Aquaculture, the farming of marine and aquatic organisms, is currently the fastest growing food production sector globally. As capture fisheries have stagnated and the fishing down of marine food webs has been seen to be ... -
Nutrient dynamics in coastal and shelf oceans - sediments as a regulator of eutrophication feedbacks
(2022-01-10)Coastal and shelf systems are under increasing pressure from human activities. Many coastal systems currently suffer from excessive algae growth following increased nutrient input from land, a process called eutrophication. ... -
Nutrient Transfer in Aquaponic Systems – Optimizing microbial processes for greater circularity and economic viability
(2023-04-18)The trend towards sustainable process design in modern industries combines the goal of improving process efficiency with a conscientious shift towards resource conservation. Aquaponics, a system that involves co-cultivating ... -
Ocean circulation in the Amundsen Sea, West Antarctica
(2017-05-30)The increase of mass loss from the Antarctic Ice Sheet is a significant contribution to global sea level rise. The most rapid changes are occurring in the Amundsen Sea area, where the thinning of the floating glaciers is ... -
Ocean mixing and polynyas at Maud Rise, Weddell Sea
(2022-04-22)The Weddell Sea Polynya is an intermittent, ice free area in the marginal ice zone with an extent of up to 350 000 km². It was first observed by satellites in the winter seasons of 1974-1976. In 2016 and 2017, an open-ocean ... -
On the generation of Maud Rise polynyas in the Weddell Sea
(2024-04-12)The Weddell Sea is a region prone to the formation of open-ocean polynyas. Open-ocean polynyas are offshore openings of sea ice in the winter season, often accompanied by deep convection. Deep convection allows for the ... -
Phenotypic and Genotypic responses in the planktonic diatom Skeletonema marinoi - Effects of Natural Processes and Anthropogenic Stressors
(2017-11-06)Diatoms are one of the most diverse and abundant phytoplankton taxa and are highly important as primary producers, accounting for nearly half of the marine primary production and constituting the base in the marine food ... -
Practical application of machine learning for analyses of biological matrices and environmental phenomena.
(2020-09-11)This thesis presents research aimed at forwarding an understanding of machine learning methods as a method of studying complex matrices and environmental phenomena. A number of machine learning methods in the form of linear ... -
Reproductive isolation at contact zones
(2021-01-18)Speciation is among the most important evolutionary processes that contribute to biodiversity. It involves the formation of new species that have become reproductively isolated through a process that is not linear and ... -
Restoration and management of eelgrass (Zostera marina) on the west coast of Sweden
(2016-11-11)Since the 1980s over 60% of eelgrass (Zostera marina) habitats have been lost from the Swedish NW coast, resulting in significant losses of the valuable ecosystem services provided by these habitats. The eelgrass loss has ... -
Seagrass Wasting Disease Impact of abiotic factors and chemical defense
(2017-12-04)Eelgrass, Zostera marina, is the dominant seagrass species in the northern hemisphere, and forms large meadows that provide several important ecosystem services. In the 1930s about 90% of the Z. marina populations in the ... -
Seaweeds as a future protein source: innovative cultivation methods for protein production
(2023-10-20)As the global population is projected to reach approximately 10 billion people by 2050, it is estimated that we will need to produce up to 60% more food compared to 2010. Although the current food production system contributes ... -
Single cell carbon and nitrogen dynamics in chain forming diatoms, including their resting stage
(2023-08-10)The oceans are a fundamental part of all life on earth, accounting for more than half of Earth’s oxygen production. The ocean is also key to long term carbon dioxide sequestration. Diatoms are a group of phytoplankton ... -
Sources and fate of plastic particles in northern European coastal waters
(2019-12-11)Plastics are integral parts of our lives and have allowed for important technological leaps within society. However, an unwanted consequence of our current consumption of plas-tics is marine plastic pollution and in order ... -
Survivors of the Sea: Investigating the genomics and survival strategies of the diatom Skeletonema marinoi
(2023-09-14)Diatoms are an ecologically important group of phytoplankton, responsible for around 20% of global primary production. One of the features contributing to their success is their ability to form resting stages, a response ... -
Sustainable Kelp Aquaculture in Sweden
(2019-10-29)Seaweed aquaculture is gaining more interest worldwide, including Europe. However, despite its long coast seaweed farming is still very minor in Sweden. The overarching aim of this thesis is to develop sustainable cultivation ... -
The role of chromosomal inversions in rough periwinkle snails (Littorina saxatilis)
(2024-04-15)Chromosomal inversions are genomic rearrangements that may have a major role in local adaptation, facilitating ecotype formation and speciation. Recombination can hinder these processes as it breaks apart beneficial ... -
Turbulence in the sea ice impacted Southern Ocean and its implications for primary production and carbon export
(2022-05-12)The sea ice impacted Southern Ocean, south of the Antarctic Circumpolar Current, is one of the most important regions on earth for the cycling of carbon and distribution of heat and freshwater around the globe. Here, ...