Browsing Department of Biological Sciences by Title
Now showing items 1733-1752 of 2290
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Potential for homoacetogenesis via the Wood–Ljungdahl pathway in Korarchaeia lineages from marine hydrothermal vents
(Journal article; Peer reviewed, 2023)The Wood–Ljungdahl pathway (WLP) is a key metabolic component of acetogenic bacteria where it acts as an electron sink. In Archaea, despite traditionally being linked to methanogenesis, the pathway has been found in several ... -
Potential impacts of abrupt in situ CO2 acidification on microbial abundance and community structure in deep-sea sediments
(Master thesis, 2013-06-05)Studying the environmental impacts of CO2 leakage is important to evaluate the risk of sub sea CO2 storage. If there were possibilities that small amounts of CO2 would leak out, what would the environmental impact be on ... -
Potential of insect-based diets for Atlantic salmon (Salmo salar)
(Peer reviewed; Journal article, 2018-04)In the present study, we aimed to assess the effect of dietary insect meal (IM) and insect oil (IO) on growth performance, body composition and nutrient digestibility of freshwater reared Atlantic salmon. The IM and IO ... -
Potential of novel desert microalgae and cyanobacteria for commercial applications and CO2 sequestration
(Peer reviewed; Journal article, 2019)CO2 fixation by phototrophic microalgae and cyanobacteria is seen as a possible global carbon emissions reducer; however, novel microalgae and cyanobacterial strains with tolerance to elevated temperatures and CO2 ... -
Potential predation rates by the sea stars Asterias rubens and Marthasterias glacialis, on juvenile scallops, Pecten maximus, ready for sea ranching
(Peer reviewed; Journal article, 2012)The potential for predation by the sea stars Asterias rubens and Marthasterias glacialis on seed-size (41 ± 3 mm shell height) juvenile scallops (Pecten maximus), ready for seeding in sea ranching areas, was investigated ... -
The potential to use documentation in national Red Lists to characterize red-listed forest species in Fennoscandia and to guide conservation
(Peer reviewed; Journal article, 2018-07)Loss of biodiversity is a pressing global issue, hence it is vital to facilitate informed and effective conservation. As conservation mainly operates at the level of habitats, aiming for species of conservation interest, ... -
The power of multi-matrix monitoring in the Pan-Arctic region: plastics in water and sediment
(Journal article; Peer reviewed, 2022)Litter and microplastic assessments are being carried out worldwide. Arctic ecosystems are no exception and plastic pollution is high on the Arctic Council's agenda. Water and sediment have been identified as two of the ... -
Praksisens betydning for utvikling av profesjonell kompetanse. En kvalitativ studie på læring i praksis ved Profesjonsstudium i fiskehelse
(Master thesis, 2016-06-01)It has been a tradition for practice within professional studies at university and college during the education for a far time. Although there is much research on what characterizes good practice, there has not been ... -
Pre-catch and discard mortality in Northeast Atlantic herring and mackerel fisheries: consequences for stock estimates and advice
(Journal article; Peer reviewed, 2021)Unaccounted mortality caused by discarding or pre-catch losses is a major challenge for fisheries management. In pelagic fisheries, a considerable proportion of catches may be lost due to intentional release of unwanted ... -
Predation by beetles (Carabidae, Staphylinidae) on eggs and juveniles of the Iberian slug Arion lusitanicus in the laboratory
(Peer reviewed; Journal article, 2010-10)Arion lusitanicus has become a major pest species in western Norway in the last few years. This species originates from southern Europe but has been spread by humans over large parts of central and northern Europe during ... -
Predation by carabid beetles (Coleoptera, Carabidae) on the invasive Iberian slug Arion lusitanicus
(Doctoral thesis, 2010-06-21)Predator-prey and host-parasite interactions are essential in understanding the population dynamics of any species, including pest species. In fact, integrated pest management that incorporates biological control requires ... -
Predation risk at dawn: How changing light and birds’ traits affect the temporal risk landscape during sunrise.
(Master thesis, 2018-09-01)Passerine birds, commonly known as songbirds, have a pronounced peak of singing before sunrise during their breeding season, known as the dawn chorus. This thesis aims to explore why they sing at this time – what are the ... -
Predator–prey interactions in the Arctic: DNA metabarcoding reveals that nestling diet of snow buntings reflects arthropod seasonality
(Journal article; Peer reviewed, 2023)Tundra arthropods are of considerable ecological importance as a seasonal food source for many arctic-breeding birds. Dietary composition and food preferences are rarely known, complicating assessments of ecological ... -
Predator–prey overlap in three dimensions: cod benefit from capelin coming near the seafloor
(Journal article; Peer reviewed, 2021)Spatial overlap between predator and prey is a prerequisite for predation, but the degree of overlap is not necessarily proportional to prey consumption. This is because many of the behavioural processes that precede ... -
Predicting abundance, species richness and assemblages of woodland snails using environmental variables
(Master thesis, 2003)The abundance and diversity of woodland snails (Gastropoda: Pulmonata) were investigated in a large-scale study in Geitaknottane Nature Reserve in Kvam County (Norway). Snails were collected in 132 squares (50 X 50 meters) ... -
Predicting and assessing climate-change impacts on the population dynamics of alpine and lowland forbs
(Doctoral thesis, 2015-05-29)Background and aims: Global climate change is already affecting plant species worldwide. The global rise in temperatures and regional changes in precipitation are predicted to continue throughout the century. Therefore, ... -
Predicting decline of threatened species, invasiveness of alien species, and invasibility of seminatural habitats: A case study from threatened coastal heathlands and semi-natural grasslands in western Norway
(Doctoral thesis, 2019-04-23)Semi-natural habitats are characterised by a large biodiversity, but also associated with a large susceptibility to invasion by non-native species. Coastal heathlands and semi-natural grasslands in Norway, are under pressure ... -
The Preen Gland - an Organ for Excretion of Persistent Organic Pollutants in Black-legged Kittiwake (Rissa tridactyla)
(Master thesis, 2010-06-01)Persistent organic pollutants (POPs) constitute a chemically diverse group of lipophilic substances that may accumulate in living organisms, often with harmful effects. To some extent these substances may be expelled via ... -
Prescribed burning can promote recovery of Atlantic coastal heathlands suffering dieback after extreme drought events
(Journal article; Peer reviewed, 2023)Questions During the winter of 2014, an intense drought combined with sub-zero temperatures resulted in a massive Calluna dieback in Norwegian heathlands. We studied the initial vegetation recovery under two management ... -
Presence and habitats of bacterial fish pathogen relatives in a marine salmon post-smolt RAS
(Journal article; Peer reviewed, 2022)Recycling aquaculture system (RAS) requires well-functioning microbial communities to support fish welfare and to minimize the risk of spreading diseases. In this study of a marine post-smolt RAS we searched for groups of ...