Blar i Master theses på utgivelsesdato
Viser treff 21-40 av 294
-
Estimation of discard of cod (Gadus morhua) in Norwegian gillnet fisheries
(Master thesis, 2019-06-21)Estimates have suggested that around 10 % of global marine fisheries-catches are discarded at sea, instead of landed and utilized. Since 1987, Norway has gradually implemented a Discard ban, which prohibits the act, but ... -
"A cleaner break" - Genetic analysis identifies two major groups of ballan wrasse (Labrus bergylta) within Scandinavia and evidence of phenotype derived divergence
(Master thesis, 2019-06-21)For a long time, sea lice have represented the major financial and fish welfare challenge of the salmonid farming industry. In the late 1980s, the use of parasite-eating cleaner fish, first and foremost wrasses (family ... -
Reproduktiv investering hos flekket frøbille, Callosobruchus maculatus. -Effekten av ulik interaksjonsfrekvens på hunner og hanners vektutvikling og livslengde.
(Master thesis, 2019-06-21)For insekter er kostnader assosiert med seksuell reproduksjon i stor grad knyttet til gametproduksjon, kurtise og egglegging. Investeringsmønster er ofte forskjellig mellom hunner og hanner, og seksuell konflikt over ... -
Læring hos biologistudenter: En kvantitativ pilotstudie av læringsmønstre blant førsteårsstudenter i biologi
(Master thesis, 2019-06-21)For studenter er det viktig å ha gode strategier for å lære, ikke bare i studiehverdagen men også for senere deltakelse i arbeidslivet. Innsikt i studenters bruk av læringsstrategier kan danne et grunnlag for utvikling av ... -
Characterizing the Infectious Pattern of Viruses Infecting the Haptophyte Emiliania huxleyi
(Master thesis, 2019-06-21)Marine viruses play an important role in biodiversity, population abundance and biogeochemical cycling of elements in the environment. They exhibit a broad range of infectious patterns and it is of ecological interest to ... -
Metabolic properties of the hyperthermophilic sulfate reducing archaea of the genus Archaeoglobus in deep-sea hydrothermal vent systems
(Master thesis, 2019-06-21)Along the mid-ocean ridge system, super-heated fluids rich in metal sulfides expel out of the ocean floor, precipitating sulfides and forming black smoker chimneys. The precipitated sulfide forms the chimney wall and the ... -
Infection dynamics of marine Eubothrium sp. (Cestoda) in farmed Atlantic salmon
(Master thesis, 2019-06-21)Infections with marine tapeworms have been reported as an increasing problem in aquaculture of Atlantic salmon (Salmo salar L.) in Norway over the last few years. These are caused by the cestode Eubothrium sp. Little is ... -
Is eggshell colouration related to the sex of the embryo in the northern lapwing Vanellus vanellus?
(Master thesis, 2019-06-21)This study focuses on eggshell pigmentation in the northern lapwing Vanellus vanellus, a shorebird in the plover family. The pigmentation of dark spots is attributed to the organic compound protoporphyrin, which is associated ... -
Tenkemåte hos biologistudenter En kvalitativ studie av hvordan biologistudenters tenkemåte er preget av å være vekstbasert eller fastlåst
(Master thesis, 2019-06-22)Denne studien tar sikte på å gi innsyn i hvilken tenkemåte som preger biologistudentene ved UiB. Tenkemåte i denne studien blir sett ut fra hva studentene tenker om formbarheten til intelligens og evner, og hvordan de ... -
Happy hatchday! How does timing of hatching affect the survival of larval Gadus morhua in a changing environment?
(Master thesis, 2019-06-22)The classical match-mismatch hypothesis proposes that the timing between larval first feeding and food availability is an important driver of year-class strength. With climate change and the warming of the oceans, it is ... -
Pseudomonas anguilliseptica from lumpfish (Cyclopterus lumpus) in Norwegian aquaculture – phylogenetic analysis and infection challenge
(Master thesis, 2019-06-22)The large-scale production and use of lumpfish (Cycloperus lumpus) as a biological delousing agent in Norwegian aquaculture presents novel pathogenic issues. The bacterium Pseudomonas anguilliseptica has in recent years ... -
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. ... -
Why do birds lay eggs that fail to hatch?
(Master thesis, 2019-06-22)In birds, an average of 10-15% of eggs reportedly fail to hatch and remain in the nest after completed incubation. This is due to either fertilization failure or embryo death. Hatchability (the proportion of eggs hatching) ... -
Impact of cysteine 106 oxidation on function and localisation of the Parkinson’s disease-related protein DJ-1
(Master thesis, 2019-06-22) -
Genetisk analyse av Vibrio anguillarum, Vibrio ordalii og Vibrio ordalii-lignende isolater isolert fra syk rognkjeks
(Master thesis, 2019-06-22)Vibrio anguillarum og en Vibrio ordalii-lignende bakterie har de siste årene vært et økende problem hos en rekke nyere marine arter det drives oppdrett av i Norge, spesielt rognkjeks. Lite studier er gjort av populasjonsgenetikken ... -
Exploring the central and peripheral systems controlling appetite, food intake and digestion in Atlantic halibut (Hippoglossus hippoglossus) larvae- Tissue distribution, ontogeny and effects of food attractants
(Master thesis, 2019-06-25)Atlantic halibut (Hippoglossus hippoglossus) is a cold-water belonging to the Pleuronectidae family and is native to Norwegian waters. Halibut is a high valued food species that have been overfished and wild-stock collapses, ... -
Pukkellaks (Oncorhynchus gorbuscha) tatt på Vestlandet. - Hvilke parasitter og infeksjoner bærer de på?
(Master thesis, 2019-06-25)Sommeren 2017 ble det rapportert om store forekomster av pukkellaks over hele norskekysten. De ble observert over 230 elver, fordelt fra nord til sør i Norge. Den svartelistede pukkellaksen skapte raskt overskrifter med ... -
Studenters oppfatning av hva det vil si å være en dyktig biologilærer: En studie av lærerkvaliteter, undervisningstiltak – og metoder som gjør at biologilærere kan betegnes som dyktige undervisere
(Master thesis, 2019-06-25)Studien handler om studenters oppfatning om temaet lærerdyktighet: Hvorfor er det viktig å ha innsyn i hva elever tenker om læreres undervisningspraksis, og hvordan kan denne kunnskapen tas i bruk? Lærerdyktighet i ulike ...