Blar i Department of Biological Sciences på tittel
Viser treff 1587-1606 av 2273
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Organization, transformation, and activation of the melanocortin system in Atlantic salmon
(Doctoral thesis, 2023-11-03)Atlantisk laks (Salmo salar) er en nøkkelart i norsk havbruk. Det trengs imidlertid mer kunnskap og teknologi for å kontinuerlig utvikle mer bærekraftig produksjon, forbedre dyrevelferden og for å øke den økonomiske verdien ... -
Osedax mucofloris (Polychaeta, Siboglinidae), a bone-eating marine worm new to Norway
(Peer reviewed; Journal article, 2010)The bone-eating siboglinid polychaete Osedax mucofloris Glover, Källström, Smith & Dahlgren, 2005 is reported from Norwegian waters for the first time. Dense growth was found on bovine bones deposited at 118 meters depth ... -
Ossification of Atlantic cod (Gadus morhua) – Developmental stages revisited
(Peer reviewed; Journal article, 2017-02)In studies of marine larvae, it is common to use days post-hatch as a developmental reference point. We show that age is a poor measure of morphological and physiological development in Atlantic cod. Therefore, we propose ... -
Otolith growth across two generations in Atlantic herring (Clupea harengus)
(Master thesis, 2018-06-27)The Atlantic herring (Clupea harengus) has a wide distribution and a complex metapopulation structure with interactions between the sub-populations. The sub-populations show different adaptations, both genetic and non-genetic, ... -
Otolith structure as indicator of key life history events in Atlantic cod (Gadus morhua)
(Doctoral thesis, 2018-08-27)Otoliths are remarkable recorders of the individual life history, as they can reflect the growth trajectory and may encapsulate marks related to ontogenetic, physiological and environmental events. Visible and chemical ... -
Otolith “spawning zones” across multiple Atlantic cod populations: Do they accurately record maturity and spawning?
(Journal article; Peer reviewed, 2021)Specific changes identified in the otolith macrostructure of Northeast Arctic cod as “spawning zones” are presumed to represent spawning events, but recent experimental studies have challenged this relationship. Because ... -
Outdoor cycling activity affected by COVID-19 related epidemic-control-decisions
(Journal article; Peer reviewed, 2021-05-06)Aim: The lockdown of sports infrastructure due to the COVID-19 pandemic has substantially shifted people’s physical activity towards public green spaces. With Germany’s lockdown as one of the more severe governmentally ... -
Overcoming Ostrea edulis seed production limitations to meet ecosystem restoration demands in the UN decade on restoration
(Journal article; Peer reviewed, 2023)The European flat oyster, Ostrea edulis, is a habitat-forming bivalve which was historically widespread throughout Europe. Following its decline due to overfishing, pollution, sedimentation, invasive species, and disease, ... -
Overlapping transcription initiation codes and promoter interpretation in vertebrate development and differentiation
(Doctoral thesis, 2015-01-05)A core promoter is a minimal region sufficient to direct the accurate initiation of transcription. Various core promoter elements have been discovered that recruit and position transcriptional machinery, which then initiates ... -
Overvåkingsprogram og kompetansehevingstiltak knyttet til vannkvalitet og fiskehelse i marine yngel- og settefiskanlegg (MarinVest)
(NIVA-rapport;6782, Research report, 2015)Prosjektet «Overvåkingsprogram og kompetansehevingstiltak knyttet til vannkvalitet og fiskehelse i marine yngel- og settefiskanlegg (MarinVest)».har blitt utført i samarbeid med industrideltagerne Sterling White Halibut ... -
The oxygen requirement of Atlantic salmon (Salmo salar L.) in the on-growing phase in sea cages
(Doctoral thesis, 2012-10-30)Atlantic salmon aquaculture is a successful and growing industry, with a global production of more than 1.4 million tonnes in 2010. In the on-growing phase, Atlantic salmon are normally kept in sea cages, where both the ... -
Oxygen variation within a seacage
(Master thesis, 2008-06-01)In recent years, fish welfare during aquaculture production has received increasing attention, and it has been suggested that welfare is threatened as larger seacages are developed. Larger seacages with higher stocking ... -
Pacific and Atlantic Lepeophtheirus salmonis (Krøyer, 1838) are allopatric subspecies: Lepeophtheirus salmonis salmonis and L. salmonis oncorhynchi subspecies novo
(Peer reviewed; Journal article, 2014-03-14)Background: The salmon louse Lepeophtheirus salmonis is a parasitic copepod that infects salmonids in the Pacific and Atlantic oceans. Although considered as a single species, morphological and biological differences have ... -
Palaeolimnological and sedimentary responses to Holocene forest retreat in the Scandes Mountains, west-central Sweden
(Peer reviewed; Journal article, 2004)A suite of analyses was performed on sediments accumulated during the last 10 700 years in Lake Spaime, a small, hydrologically open water body in the modem alpine tundra zone of the Scandes Mountains, west-central Sweden. ... -
Palaeolimnological responses of nine North African lakes in the CASSARINA Project to recent environmental changes and human impact detected by plant macrofossil, pollen, and faunal analyses
(Peer reviewed; Journal article, 2001)This paper presents multi-proxy palaeolimnological analyses from recent sediments in the nine CASSARINA lakes in northernmost Africa, three from each of Morocco, Tunisia, and Egypt. The lakes are diverse, ranging from ... -
A paleoecological context to assess the development of oak forest in Colombia: A comment on Zorilla-Azcué, S., Gonzalez-Rodríguez, A., Oyama, K., González, M.A., & Rodríguez-Correa, H., The DNA history of a lonely oak: Quercus humboldtii phylogeography in the Colombian Andes. Ecology and Evolution 2021, doi: 10.100-2/ ece3.7529
(Journal article; Peer reviewed, 2022)The present “comment” on Zorilla-Azcué et al.’s paper “The DNA history of a lonely oak: Quercus humboldtii phylogeography in the Colombian Andes. Ecology and Evolution 2021, doi:10.100-2/ece3.7529” provides the paleoecological ... -
Palm fruit colours are linked to the broad-scale distribution and diversification of primate colour vision systems
(Journal article; Peer reviewed, 2020)A long-standing hypothesis in ecology and evolution is that trichromatic colour vision (the ability to distinguish red from green) in frugivorous primates has evolved as an adaptation to detect conspicuous (reddish) fruits. ... -
Pan-genome survey of the fish pathogen Yersinia ruckeri links accessory- and amplified genes to virulence
(Journal article; Peer reviewed, 2023)While both virulent and putatively avirulent Yersinia ruckeri strains exist in aquaculture environments, the relationship between the distribution of virulence-associated factors and de facto pathogenicity in fish remains ... -
A pan-Himalayan test of predictions on plant species richness based on primary production and water-energy dynamics
(Journal article; Peer reviewed, 2021)Spatial variation in plant species diversity is well-documented but an overarching first-principles theory for diversity variation is lacking. Chemical energy expressed as Net Primary Production (NPP) is related to a ... -
Pancrustacean Evolution Illuminated by Taxon-Rich Genomic-Scale Data Sets with an Expanded Remipede Sampling
(Peer reviewed; Journal article, 2019-07-04)The relationships of crustaceans and hexapods (Pancrustacea) have been much discussed and partially elucidated following the emergence of phylogenomic data sets. However, major uncertainties still remain regarding the ...