Blar i Department of Biological Sciences på tittel
Viser treff 1679-1698 av 2231
-
Population structure of European sprat (Sprattus sprattus) in the Greater North Sea ecoregion revealed by otolith shape analysis
(Journal article; Peer reviewed, 2022)A successful discrimination of fish populations is essential for sustainable management and assessment. Otolith shape analysis has been used on several species to reveal their population structure. Our aim was to use the ... -
The population structure of roundnose grenadier (Coryphaenoides rupestris) in southwestern Norway
(Master thesis, 2017-05-30)Ocean circulation, bathymetric barriers, and ecological processes can hinder the dispersal of marine fishes and thus generate sub-populations. The present study investigated the population structure of a benthopelagic fish, ... -
Position and orientation of the westerly jet determined Holocene rainfall patterns in China
(Peer reviewed; Journal article, 2019-05-30)Proxy-based reconstructions and modeling of Holocene spatiotemporal precipitation patterns for China and Mongolia have hitherto yielded contradictory results indicating that the basic mechanisms behind the East Asian Summer ... -
Positioning aquatic animals with acoustic transmitters
(Journal article; Peer reviewed, 2023)Geolocating aquatic animals with acoustic tags has been ongoing for decades, relying on the detection of acoustic signals at multiple receivers with known positions to calculate a 2D or 3D position, and ultimately recreate ... -
Possible use of lumpfish to control Caligus elongatus infestation on farmed Atlantic salmon: A mini review
(Journal article; Peer reviewed, 2020)In this mini review, we systematized current knowledge about the number of Caligus elongatus on farmed Atlantic salmon in relation to the use of lumpfish as cleaner fish. The review was prompted by reports of an unusually ... -
The potential for cleaner fish-driven evolution in the salmon louse Lepeophtheirus salmonis: Genetic or environmental control of pigmentation?
(Journal article; Peer reviewed, 2021)The parasitic salmon louse represents one of the biggest challenges to environmentally sustainable salmonid aquaculture across the globe. This species also displays a high evolutionary potential, as demonstrated by its ... -
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 ...