Browsing Doctoral Theses / Doktorsavhandlingar Institutionen för biologi och miljövetenskap by Title
Now showing items 42-61 of 109
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Gastrointestinal motility and blood flow in teleosts during digestion and osmoregulation
(2017-01-20)Teleost fishes occupy virtually every aquatic habitat on earth and as a group face a wide range of environmental challenges in their natural habitats, as well as during their life histories. In order to survive and thrive ... -
Gene expression and regeneration in ophiuroids: A study of transcriptional activity and regeneration in the temperate Amphiura filiformis and Antarctic Ophionotus victoriae
(2012-11-01)Regeneration, in which lost or damaged tissues are re-grown, is a common phenomenon amongst animals and especially so within the ophiuroids (brittle stars) of the phylum echinodermata. The process of regeneration begins ... -
Grazer-induced responses in marine phytoplankton
(2012-09-27)Phytoplankton are the most important primary producers in the world’s oceans, yet little is known of how they avoid the constant threats from the pelagic grazers. From land it is well known that plants defend themselves ... -
Hazard assessment of ciprofloxacin, sulfamethoxazole and triclosan for marine periphyton : Ecotoxicology, Pollution Induced Community Tolerance and Co-Tolerance
(2014-09-29)Antibiotics and personal care products are used in large quantities and commonly detected in various environmental compartments. The two antibiotics, ciprofloxacin and sulfamethoxazole, and the personal care product triclosan ... -
Heathlands – A Lost World?
(2019-05-03)Heathland is a familiar landscape type in southwest Sweden. It is open with few trees, and the vegetation is dominated by dwarf-shrubs growing on nutrient-poor soils. Dry heaths with Heather Calluna vulgaris and wet heaths ... -
Herbivory and biodiversity conservation of the savannah habitats in Akagera National Park, Rwanda
(2013-04-05)Savannahs make up about 20% of the world’s land surface, whereas African savannahs constitute 50% of the land area and have been used as parks to conserve nature and for outdoor recreation. However, conserving biodiversity ... -
Hey ho, let's go! Vesicle transport in chloroplasts
(2017-02-03)The photosynthetic reactions have been thoroughly studied, but less is known about the biogenesis of the structures harboring the photosynthetic machinery: the thylakoid membranes. Lipids, constituting both the envelopes ... -
Impacts of recreational boating in coastal seascapes and implications for management
(2018-04-12)Kosterhavet National Park, a marine protected area on the Swedish west coast, is a popular destination for tourists and attracts over half a million visitors annually. Many of the tourists arrive by boat, and the natural ... -
Insights into Marine Fish Physiology in a Changing World
(2016-01-15)Ocean acidification and global warming are largely caused by increased levels of atmospheric CO2, and marine fish are exposed to both these stressors simultaneously. Although the effects of temperature on fish have been ... -
Integrative physiology as a tool towards good animal welfare and sustainability in aquaculture: Focus on intestinal function and health
(2023-08-21)The human population is growing, and the world’s leaders are trying to provide humans with food resources and at the same time setting goals promoting sustainable food production. This means that we need to find new food ... -
Interspecific Interactions between Native Brown Trout and Invasive Brook Trout: Insights into Behaviour and Morphology
(2021-04-28)The introduction of non-native species represents a global threat to ecosystems and biodiversity. In Europe, the introduction of the invasive brook trout (Salvelinus fontinalis) has led to species displacement and local ... -
Intestinal Mucosal Immunology of Salmonids Response to Stress and Infection and Crosstalk with the Physical Barrier
(2013-05-15)The effect of environmental factors and pathogens on the intestinal epithelium of fish has received increased attention in recent years. Studies focusing on effects of stress, nutrient uptake as well as vegetable ingredients ... -
Investigation of [N-X-N]+ and [N-C-N]+ complexes in solution
(2017-11-02)Halogen bonding is a weak interaction. In this thesis the three center four electron halogen bond, [N−X−N]+, has been studied. The lighter halogens form highly unstable halonium ions that are reactive towards nucleophiles ... -
Ion Transport in Chloroplasts with Role in Regulation of Photosynthesis
(2015-09-14)Photosynthesis is the primary energy source of almost all ecosystems on Earth. Oxygenic photosynthesis has appeared approximately 2.4 billion years ago and has since then gradually evolved into the complex process that ... -
A landscape of values - a study of non-epistemic values in Swedish upper secondary science education
(2022-04-26)This thesis sets out to investigate the role of non-epistemic values in science education from three actors’ perspectives – the science student, the science teacher, and the science teacher educator. More specifically, the ... -
Leptin endocrinology and energy homeostasis in salmonids
(2015-12-28)In salmonids, the physiological role of leptin is not completely elucidated. Nonetheless, the anorexigenic effect of leptin indicates a role in their energy homeostasis. This thesis focuses on advancing the understanding ... -
Light-regulated Development in Arabidopsis
(2014-09-30)Many external and internal factors affect multiple developmental processes in plants. Light is one of the essential factors that regulates various aspects of plant growth and development throughout their life cycle. Through ... -
Mate choice and its evolutionary consequences in intertidal snails (Littorina spp.)
(2013-05-06)The ability to recognise potential mates and choose the best possible partner for reproduction is of fundamental importance for most animal species. This thesis presents studies of mate choice in marine snails of the genus ... -
Microbial Biofilms in the Bioinformatics Era
(2016-05-30)Adverse effects of anthropogenic impact on the environment have become conspicuous in the past century and among others include the gradual increase in the global CO2 levels, the contamination of air, soil and water by ... -
Microplastics in the aquatic environment: Insights into biological fate and effects in fish
(2019-03-26)According to the United Nations, plastic pollution in the natural environment has been identified as one of the biggest environmental challenges of this century and has become a cause for an emerging international concern. ...