Browsing Master theses by Subject "751999"
Now showing items 41-60 of 215
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Diet variation in Barents Sea haddock (Melanogrammus aeglefinus)
(Master thesis, 2023-06-02)Diet composition and feeding are crucial for assessing fish species ecological role, population dynamics, and overall ecosystem health. It provides insights into fish’s functional role within the food web, and it contributes ... -
DIETARY EFFECTS ON GROWTH AND ENERGY STATUS OF JUVENILE BALLAN WRASSE (LABRUS BERGYLTA) IN SALMON PENS
(Master thesis, 2022-06-01) -
Digital velferdsovervåking og effekt av kameradybde på estimert skadefrekvens hos Atlantisk laks (Salmo salar) i en oppdrettsmerd
(Master thesis, 2022-09-01)Dette var en innledende studie på digital velferdsovervåking ved hjelp av kamerateknologi og en undersøkelse av effekten kameraet sin dybdeplassering har for estimat av skadefrekvens i en gruppe Atlantisk laks (Salmo Salar) ... -
Distribution and feeding ecology of fin (Balaenoptera physalus) and humpback whales (Megaptera novaeangliae) in the Norwegian Sea during the summers of 2013 to 2018
(Master thesis, 2019-06-14)This study aims at describing the current (2013 to 2018) summer distribution and feeding ecology of fin whales (Balaenoptera physalus) and humpback whales (Megaptera novaeangliae) in the Norwegian Sea. These waters function ... -
Does Brownification and Iron Affect Microbial Communities and Mixotrophic Activities? Experiences From a Mesocosm Experiment
(Master thesis, 2020-11-13)In one millilitre of seawater there is on average approximately a million microbial cells, and these are largely responsible for nearly half of all primary production on Earth. Mixotrophic microorganisms are ubiquitous in ... -
Does pollinator-dependency in vascular plants affect the elevational range expansion of species in the northern Scandinavian mountains?
(Master thesis, 2024-11-20)Rising temperatures have led to the number of species increasing on mountain peaks across Europe. A greater increase in species richness leads to more competition for resources on the mountains which threatens local species. ... -
Ecological Consequences of Ash Dieback in Western Norway
(Master thesis, 2021-06-30) -
Eelpouts diet in the Barents Sea: variation between species, areas, fish length and sex
(Master thesis, 2019-06-22)he eelpout family is one of the most common fish families in the Barents Sea. Despite the diversity and wide distribution, we have little information about their ecology, feeding preferences and interaction with other fish. ... -
Effect of continuous aerobic exercise on the heart of Atlantic salmon
(Master thesis, 2023-06-02) -
Effect of sex ratio variation on mating behaviour in a parasite, the salmon louse (Lepeophtheirus salmonis)
(Master thesis, 2020-09-01)In sexual organisms, females produce large gametes and their reproductive success is generally more limited by resources compared to males that produce many small gametes and are more limited by the number of mates. Because ... -
Effect-directed toxicity assessment of sediments from Bergen harbour (Norway) using luciferase reporter gene and cell-based bioassays
(Master thesis, 2022-10-01)Bergen harbour has been a historically polluted area in line with the harbours of many other major coastal cities in Norway and other countries around the world. With pollutants accumulating to toxic levels in organisms ... -
Effects of chlorpyrifos, an organophosphate pesticide on the intestinal barrier of Atlantic salmon (Salmo salar)
(Master thesis, 2021-03-20)Aquaculture is the fastest growing food producing sector worldwide. The decline in capture fisheries has led to a decrease in fish oil and fish meal production. Due to this decline, there is a need for alternative lipid ... -
Effects of dietary fermented sugar kelp (Saccharina latissima) on Atlantic salmon (Salmo salar) intestinal morphology and redox status
(Master thesis, 2022-06-01)The aquaculture industry is the world’s fastest growing food production sector and there is a demand for new feed ingredients from lower marine trophic levels to replace the marine and vegetable resources now used in ... -
Effects of multiple mating and male harassment on female fecundity and longevity in the seed beetle Callosobruchus maculatus.
(Master thesis, 2019-12)Polyandry is a common mating system in many species, however females may experience considerable costs related to multiple mating including male harassment, energy use and in some cases physical damage. Male harassment of ... -
Effects of photoperiod regimes and salinity on Na+, K+-ATPase α-isoform expression in gills and kidney during smoltification in Atlantic salmon (Salmo salar) in recirculating aquaculture systems
(Master thesis, 2023-06-02)Understanding the molecular mechanisms of smoltification and seawater adaptation in Atlantic salmon (Salmo salar) is crucial for optimizing smolt production in aquaculture. This study investigated the expression patterns ... -
Effects of temperature regimes on proportion of early maturation and the activation of the BPG axis in male Atlantic salmon (salmo salar L.) postsmolts
(Master thesis, 2023-06-02)Early maturation of Atlantic salmon (salmo salar L.) male postsmolts is a growing concern for the Norwegian aquaculture industry due to an increasing occurrence in intensive rearing facilities, negatively impacting growth, ... -
Effects of vgll3 on maturation and its interaction with salinity in Atlantic salmon (Salmo salar, L)
(Master thesis, 2021-06-17)New emerging strategies in the production of Atlantic salmon (Salmo salar), for instance post-smolt and big smolt in land-based facilities experience maturation. High production rates, such as 24 hours photoperiods and ... -
Effekt av miksotrof vekst på biomasse- og lipidproduksjon hos Phaeodactylum tricornutum og Isochrysis galbana - en bioteknologisk tilnærming
(Master thesis, 2020-07-01)Sammendrag Mikroalger utgjør en mangfoldig gruppe av arter med stor metabolsk diversitet. Disse artene kan produsere en rekke kommersielt interessante produkter som kan brukes i human næringsmiddelindustri, helsekost, ...