Department of Biological Sciences
Recent Submissions
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Quantifying Gravitational Carbon Flux in the Northeast Atlantic Ocean
(Master thesis, 2024-06-24)Den biologiske karbonpumpen, en nøkkelkomponent i havets karbonsyklus, transporterer årlig mellom 5 og 15 gigatonn karbon fra havoverflaten til dypet. Dette gjør havet til en av de mest betydelige karbonlagrene på ... -
The effect of seismic shooting on the spawning behaviour of cod (Gadus morhua)
(Master thesis, 2024-06-03)Anthropogenic noise, such as e.g., seismic shooting used to locate oil and gas in the seabed, is recognized as a significant pollutant in the oceans. The sounds produced by the seismic airguns is of a low frequency, ... -
Characterization of the novel strain Pseudodesulfovibrio. sp. ægir
(Master thesis, 2024-06-03) -
Revisiting the fauna of the Jan Mayen Vent Fields
(Master thesis, 2024-06-03)This thesis investigates the fauna at three hydrothermal vent sites on the Arctic Mid-Ocean Ridge near Jan Mayen: the Troll Wall, Perle & Bruse and the diffuse venting area Gallionella Garden (500-610 m depth). Together ... -
Size distribution pattern and abundance of Periphylla periphylla in western Norwegian fjords
(Master thesis, 2024-02-06)This thesis investigates the abundance of Periphylla periphylla in Masfjorden (60050`N, 50 30`E) and Fensfjorden, western Norway. The data on which this investigation is based was collected during annual field courses for ... -
Identification, production and characterization of novel marine enzymes.
(Master thesis, 2024-06-03)Global drivers are causing a shift in the discovery of novelty, for a more sustainable, greener future. Chemical catalysts have been widely used in various industries. However, microbial enzymes of high tolerance to harsh ... -
Comparing Smolt Production Estimation Methods in Atlantic Salmon (Salmo salar)
(Master thesis, 2024-06-03)Over the last 50 years the number of wild Atlantic salmon has declined by more than 50 %, and a better understanding of the survival and recruitment dynamics of wild populations are needed to ensure the right measures are ... -
Future directions for deep ocean climate science and evidence-based decision making
(Journal article; Peer reviewed, 2024-10-31)Introduction: A defining aspect of the Intergovernmental Panel on Climate Change (IPCC) assessment reports (AR) is a formal uncertainty language framework that emphasizes higher certainty issues across the reports, especially ... -
Organisation of the Atlantic salmon (Salmo salar) thymus and its content of Ig-expressing cells
(Journal article; Peer reviewed, 2024)The thymus of fishes is located as a dual organ in a rostrodorsal projection within the gill chamber and is covered by the operculum. The histological organization of the teleost fish thymus displays considerable diversity, ... -
Photosynthetic light requirement near the theoretical minimum detected in Arctic microalgae
(Journal article; Peer reviewed, 2024)Photosynthesis is one of the most important biological processes on Earth, providing the main source of bioavailable energy, carbon, and oxygen via the use of sunlight. Despite this importance, the minimum light level ... -
Overview of the MOSAiC expedition: Ecosystem
(Journal article; Peer reviewed, 2024)The international and interdisciplinary sea-ice drift expedition “The Multidisciplinary drifting Observatory for the Study of Arctic Climate” (MOSAiC) was conducted from October 2019 to September 2020. The aim of MOSAiC ... -
Exploring the impact of thermal delousing on gill health and microbiome dynamics in farmed Atlantic Salmon
(Journal article; Peer reviewed, 2024)The economic cost of salmon louse (Lepeophtheirus salmonis and Caligus rogercresseyi) infestations in the Atlantic salmon (Salmo salar) industry has been estimated to be around $900 million annually. This high cost has ... -
Post-smolt Atlantic salmon can regulate buoyancy in submerged sea-cages by gulping air bubbles
(Journal article; Peer reviewed, 2024)Salmon lice (Lepeophtheirus salmonis) are the most severe health challenge facing Atlantic salmon (Salmo salar) aquaculture. Infestations threaten farmed and wild salmonids, drive up production costs, and limit industry ... -
Implications of climate and litter quality for simulations of litterbag decomposition at high latitudes
(Journal article; Peer reviewed, 2024)Litter decomposition is a vital part of the carbon cycle and is thoroughly studied both in the field and with models. Although temporally and spatially limited, litterbag decomposition experiments are often used to calibrate ... -
Assessing the potential for gas supersaturation downstream of hydropower plants in Norway, Austria and Germany
(Journal article; Peer reviewed, 2024)Hydroelectric power facilities can generate episodic total dissolved gas supersaturation (TDGS), which is harmful to aquatic life. We developed a decision tree-based risk assessment to identify the potential for TDGS at ... -
Growth of spring- and autumn-spawned larvae of Atlantic herring Clupea harengus: a long-term experiment mimicking seasonal light conditions
(Journal article; Peer reviewed, 2024)Atlantic herring Clupea harengus populations differ in their spawning time, and spring- and autumn-spawning populations are genetically distinct. Offspring of these populations encounter seasonal variations in productivity. ... -
Gene Expression and Phenotypic Assessment of Egg Quality across Developmental Stages of Atlantic Cod throughout the Spawning Season
(Journal article; Peer reviewed, 2024)Egg quality in fishes is commonly determined by fertilisation success and cleavage patterns as a phenotypic outcome of underlying regulatory mechanisms. Although these phenotypic estimators of egg quality are useful in ... -
Seasonal environmental transitions and metabolic plasticity in a sea-ice alga from an individual cell perspective
(Journal article; Peer reviewed, 2024)Sea-ice microalgae are a key source of energy and nutrient supply to polar marine food webs, particularly during spring, prior to open-water phytoplankton blooms. The nutritional quality of microalgae as a food source ... -
State of the heart: Anatomical annotation and assessment of morphological cardiac variation in Atlantic salmon (Salmo salar L.)
(Journal article; Peer reviewed, 2024)Farmed Atlantic salmon suffer from deviating cardiac morphology, likely compromising fish health and robustness. To mitigate the potentially devastating consequences of morphological deviations of the heart, the cause and ... -
Does the processing of black soldier fly larvae meal affect the amino acid solubility in Atlantic salmon (Salmo salar)?
(Journal article; Peer reviewed, 2024)The present work aimed to evaluate protein and amino acid (AA) digestibility/solubility of different black soldier fly larvae (BSFL) based meals for Atlantic salmon in vivo and in vitro. Three types of insect meals that ...