Blar i Department of Biological Sciences på tittel
Viser treff 1301-1320 av 2219
-
Measuring in situ krill tilt orientation by stereo photogrammetry: examples for Euphausia superba and Meganyctiphanes norvegica
(Journal article, 2015-05-12)The natural body orientation adopted by krill is a crucial parameter for understanding and estimating the acoustic backscattering from these animals. Published data are scarce and are usually acquired with single-camera ... -
Measuring methods for fish welfare during slaughter based on electrical impedance, EEG, ECG and blood parameters
(Doctoral thesis, 2016-04-28)Improved animal welfare during industrial slaughtering of fish is the aim of the scientific work presented in this thesis. The thesis is based on four publications that cover different stages of an automated industrial ... -
Mechanically reinforced, flexible, hydrophobic and uv impermeable starch-cellulose nanofibers (Cnf)-lignin composites with good barrier and thermal properties
(Journal article; Peer reviewed, 2021)Bio-based composite films have been widely studied as potential substitutes for conventional plastics in food packaging. The aim of this study was to develop multifunctional composite films by introducing cellulose nanofibers ... -
The mechanism (Phe362Tyr mutation) behind resistance in Lepeophtheirus salmonis pre-dates organophosphate use in salmon farming
(Peer reviewed; Journal article, 2017-09-27)The salmon louse is an ectoparasitic copepod of salmonids in the marine environment, and represents a global challenge to salmon aquaculture. A major issue is the reliance of the industry on a limited number of chemicals ... -
Mechanisms Generating Dichotomies in the Life Strategies of Heterotrophic Marine Prokaryotes
(Journal article; Peer reviewed, 2022)Understanding the mechanisms that generate and maintain diversity in marine prokaryotic communities is one of the main challenges for contemporary marine microbiology. We here review how observational, experimental, and ... -
Mechanisms of cataract development in adult Atlantic salmon growers relative to dietary histidine and plant feed ingredients
(Doctoral thesis, 2010-03-19)Cataracts are defined as opacities of the eye lens and can be caused by a large number of risk factors. In aquaculture, cataracts in farmed Atlantic salmon (Salmo salar L.) represent an ethical problem and can cause ... -
The Melanocortin System in Atlantic Salmon (Salmo salar L.) and Its Role in Appetite Control
(Journal article; Peer reviewed, 2020-08-21)The melanocortin system is a key neuroendocrine network involved in the control of food intake and energy homeostasis in vertebrates. Within the hypothalamus, the system comprises two main distinct neuronal cell populations ... -
The Melting Snowball Effect: A Heuristic for Sustainable Arctic Governance Under Climate Change
(Journal article; Peer reviewed, 2020)Climate change in the Arctic is occurring at a rapid rate. In Longyearbyen, Svalbard, the world’s northernmost city, deadly avalanches and permafrost thaw-induced architectural destruction has disrupted local governance ... -
Mercury in fish from the North East Atlantic: sources, bioaccumulation dynamics and co-occurrence with selenium
(Doctoral thesis, 2019-09-26)Mercury (Hg) is a global neurotoxin distributed at trace levels in the earth’s crust. Although Hg input from anthropogenic sources has been reduced in North America and Europe, in some other parts of the world the emission ... -
Mesenterial adult stem-like cells as a potential source of germinal and somatic lineages in a sea anemone
(Doctoral thesis, 2023-06-09)Adulte stamceller (ASC) opprettholder vekst og homeostase gjennom hele livet til dyr ved kontinuerlig å tilføre nye celler til organismen. ASC-er har blitt godt karakterisert i vertebrat-, nematode- og insektmodeller, som ... -
Mesopelagic sound scattering layers and possible explanations for their diel variations in Bjørnafjorden, western Norway
(Master thesis, 2018-12-19)This thesis investigates the diel variations in mesopelagic acoustic scattering layers in Bjørnafjorden (60° 5' N 5° 23'E), western Norway. The main objective was to map these scattering layers and investigate possible ... -
Mesozooplankton distribution in Svalbard waters. Calanus spp. and its relationship to hydrographic variability
(Doctoral thesis, 2008-02-06)This thesis investigates mesozooplankton abundance, composition and distribution in Svalbard waters in relation to hydrography. Sampling was carried out in the archipelago of Svalbard mainly during summer and autumn between ... -
A meta-analysis on the nutritional value of insects in aquafeeds
(Journal article; Peer reviewed, 2021)A major challenge for development of sustainable aquafeeds is its dependence on fish meal and fish oil. Similarly, it is unwanted to include more plant ingredients which adds more pressure on resources like arable land, ... -
Metabolic disorders: role of pregnane X receptor, fibroblast growth factor 19 and persistent organic pollutants
(Doctoral thesis, 2020-06-08)The incidence of obesity and correlated metabolic abnormalities has increased dramatically in the last decades and constitutes a huge burden on healthcare systems and economies. It is therefore important to increase our ... -
Metabolic rates, feed intake, appetite control, and gut transit of clownfish Amphiprion ocellaris exposed to increased temperature and limited feed availability
(Journal article; Peer reviewed, 2022)Episodes of elevated temperature, combined with lower feed availability, are among the predicted scenarios of climate change representing a challenge for coral reef fish. We investigated the response of clownfish (Amphiprion ... -
Metabolic rates, swimming capabilities, thermal niche and stress response of the lumpfish, cyclopterus lumpus
(Peer reviewed; Journal article, 2018-09-03)The lumpfish (Cyclopterus lumpus) is a semi-pelagic globiform teleost native to the North Atlantic with a ventral suction disc that allows for attachment onto surfaces. Some local populations are in decline and the species ... -
Metagenome-based analysis of the functional potential of a marine sediment community dominated by ANME-2c
(Master thesis, 2015-10-26)Methane is the most abundant hydrocarbon in the atmosphere and after CO2; it contributes for 14% of global greenhouse gas emissions. Marine sediments are a large reservoir of methane where approximately 80% of the methane ... -
Metagenomic analysis of ammonia-oxidizing archaea affiliated with the soil group
(Peer reviewed; Journal article, 2012-06-20)Ammonia-oxidizing archaea (AOA) have recently been recognized as a significant compo- nent of many microbial communities and represent one of the most abundant prokaryotic groups in the biosphere. H owever, only few AOA ... -
Metagenomics-driven predictions in Archaea from hydrocarbon-rich Arctic hydrothermal systems: Phylogenetic and metabolic analyses of methane and short-chain alkane-degrading lineages
(Doctoral thesis, 2023-04-14)Metan og hydrokarboner er potente klimagasser som produseres og nedbrytes hovedsakelig biotisk. I havet akkumuleres metan og hydrokarboner i sedimenter og hydrotermiske systemer. Nylige metagenomstudier har utvidet mangfoldet ... -
Metapopulation dynamics and behaviour of Atlantic herring (Clupea harengus L.) in a small semi-enclosed ecosystem
(Doctoral thesis, 2013-12-12)