Scientific Publications in Natural Sciences: Recent submissions
Now showing items 1-20 of 364
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Higher vitamin B12 levels in neurodevelopmental disorders than in healthy controls and schizophrenia A comparison among participants between 2 and 53 years
(Peer reviewed; Journal article, 2020)Recent studies suggest that both high and low levels of vitamin B12 (vitB12) may have negative health impacts. We measured VitB12 in patients with the Neurodevelopmental disorders (ND) (n = 222), comprised of Autism Spectrum ... -
Exploring freshwater challenges for conservation efforts : Insights into threatened and invasive fish species using environmental DNA
(Doctoral dissertations at University of Agder; no. 490, Doctoral thesis, 2024)Ferskvannsøkosystemer trues av habitatendringer, menneskeskapte barrierer, fremmede arter, forurensning, overfiske og klimaendringer. Selv om internasjonale lover og forskrifter støtter bevaring, kreves det fortsatt betydelig ... -
Personality of sea trout : A case study on ecology, conservation and dynamics in coastal Skagerrak
(Doctoral dissertations at University of Agder;no. 228, Doctoral thesis, 2019)Variation in fish behaviour seems to be an important part of species’ lifehistory and adaptation to environmental change. Interestingly, variation occurs not only in response to environmental cues, but can also be consistently ... -
Seascape ecology of Atlantic cod (Gadus morhua) in coastal Skagerrak: population structure, connectivity, and role in fish assemblage
(Doctoral dissertations at University of Agder;no. 294, Doctoral thesis, 2020)Atlantic cod populations along the Norwegian Skagerrak coast consist of two known ecotypes. During the last decade, there has been a dramatic decline of larger cod and other piscivorous fish species in eastern Skagerrak. ... -
Seasonality in phytoplankton communities and production in three Arctic fjords across a climate gradient
(Peer reviewed; Journal article, 2024)Phytoplankton communities and production in Arctic fjords undergo strong seasonal variations. Phytoplankton blooms are periods with high primary production, leading to elevated algal biomass fueling higher trophic levels. ... -
Effect of environmental drivers on the spatiotemporal distribution of mackerel at age in the Nordic Seas during 2010-20
(Peer reviewed; Journal article, 2024)A joint spatio–temporal distribution model of mackerel (ages 3–10) was developed to investigate the age-based responses of mackerel to three environmental drivers: sea surface temperature (SST), mixed layer depth, and ... -
Diatom-mediated food web functioning under ocean artificial upwelling
(Peer reviewed; Journal article, 2024)Enhancing ocean productivity by artificial upwelling is evaluated as a nature-based solution for food security and climate change mitigation. Fish production is intended through diatom-based plankton food webs as these are ... -
Stakeholders' perception and willingness-to-pay for an aquaculture-based fisheries enhancement program for coastal cod in Southern Norway
(Peer reviewed; Journal article, 2024)The coastal cod fishery in Southern Norway has experienced a significant decline over the last decades. Recreational fishing for cod in the eastern part of the country is currently banned. Fisheries managers have adopted ... -
Evaluation of mitigation measures for Atlantic salmon and brown trout at hydropower plants and their prospect as selective agents
(Doctoral dissertations at University of Agder;no. 314, Doctoral thesis, 2021)Renewable energy contributes towards the world`s growing energy demands and urgent need for mitigating climate change. However, these renewable sources of energy may have localized, detrimental environmental effects. For ... -
Atmospheric brightening counteracts warming-induced delays in autumn phenology of temperate trees in Europe
(Peer reviewed; Journal article, 2021)Aim Ongoing climate warming has been widely reported to delay autumn phenology, which in turn impacts carbon, water, energy and nutrient balances at regional and global scales. However, the underlying mechanisms of autumn ... -
Incidence of persistent contaminants through blue mussels biomonitoring from Flekkefjord fjord and their relevance to food safety
(Peer reviewed; Journal article, 2020)Dredging activities can lead to the re-suspension of contaminated sediments, resulting in a potential hazard for the whole ecosystem and also for human health. Six-month active biomonitoring was performed in order to monitor ... -
Battle of the borders: Is a range-extending fiddler crab affecting the spatial niche of a congener species?
(Peer reviewed; Journal article, 2020)Climate change is drastically altering environmental conditions and resource availability. Many organisms are shifting their distribution boundaries. Fiddler crabs, for instance, are important ecosystem engineers in coastal ... -
Drivers of spatial and temporal micro- and mesozooplankton dynamics in an estuary under strong anthropogenic influences (The Eastern Scheldt, Netherlands)
(Peer reviewed; Journal article, 2023)The Eastern Scheldt estuary in the Netherlands has been anthropogenically changed by the construction of a storm surge barrier about 30 years ago, affecting abiotic conditions as well as phytoplankton and zooplankton (ZP). ... -
Respiration rate scales inversely with sinking speed of settling marine aggregates
(Peer reviewed; Journal article, 2023)Sinking marine aggregates have been studied for a long time to understand their role in carbon sequestration. Traditionally, sinking speed and respiration rates have been treated as independent variables, but two recent ... -
Hazard and catch composition of ghost fishing gear revealed by a citizen science clean-up initiative
(Peer reviewed; Journal article, 2022)Ghost fishing, the continued catch of fishes and invertebrates by lost fishing gear, represents an animal welfare issue as well as a waste of both potential food and ecosystem resources. Fishing gear is lost by both ... -
Extracellular enzyme activity in the coastal upwelling system off Peru: A mesocosm experiment
(Peer reviewed; Journal article, 2023)The Peruvian upwelling system is a highly productive ecosystem with a large oxygen minimum zone (OMZ) close to the surface. In this work, we carried out a mesocosm experiment off Callao, Peru, with the addition of water ... -
Post-glacial colonization of the Fennoscandian coast by a plant parasitic insect with an unusual life history
(Peer reviewed; Journal article, 2023)Species that exhibit very peculiar ecological traits combined with limited dispersal ability pose a challenge to our understanding of ecological and evolutionary mechanisms. This is especially true when they have managed ... -
Growth of fungi and yeasts in food production waste streams: a feasibility study
(Peer reviewed; Journal article, 2023)Food production produces nutrient-rich waste streams which, depending on local legislation, are either sent to wastewater treatment plants or discharged into the environment. In addition to causing environmental harm in ... -
Reliktfloraen på våre middelalderlige kirkesteder
(Journal article; Peer reviewed, 2023)Mange nytteplanter ble innført og dyrket i Norden i vikingtid og middelalder. Reliktplanter er levende fortidsminner som på forskjellig vis har overlevd siden de ble introdusert. Over 600 kirkesteder fra middelalderen er ... -
Does sedation with AQUI-S® mitigate transport stress and post transport mortality in ballan wrasse (Labrus bergyltae)?
(Peer reviewed; Journal article, 2024)Ballan wrasse (Labrus bergylta) are commonly used as cleaner fish in salmon farms as a biological treatment to mitigate sea lice infestation. Improved welfare for cleaner fish both during production of these fish and when ...