Blar i Faculty of Mathematics and Natural Sciences på emneord "Norge"
Viser treff 1-20 av 25
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Ballan wrasse (Labrus bergylta) predation on hatchery reared scallop (Pecten maximus) spat
(Master thesis, 2005)Sea ranching of the great scallop (Pecten maximus) may have a high potential for future aquaculture in Norway. The edible crab (Cancer pagurus) and starfish (Asterias rubens) have been identified as the major predators, ... -
Cadmium in Brown Crab Cancer pagurus in Norwegian Waters
(Doctoral thesis, 2018-05-23)The Brown crab Cancer pagurus is appreciated as seafood and its fishery is of importance in several European countries. However, findings of high levels of cadmium have increased concern about food safety, and spatial ... -
Climate change and the effect of darker coastal water on NCW euphotic zone properties - A theoretical study
(Master thesis, 2016-11-21)The Norwegian Coastal Water (NCW) derives from an extensive outflow of freshwater from the Baltic Sea and river runoff from the Norwegian coast, making the water less saline than the North Atlantic Water (NAW). Freshwater ... -
The effect of low temperatures and photoperiods on growth in Atlantic salmon (Salmo salar)
(Master thesis, 2015-07-01)This thesis examines the growth response of Atlantic salmon post-smolt (Salmo salar) in a factorial experiment with three temperatures and two light regimes. The aim of this study was to investigate under laboratory ... -
Effects of gas supersaturation on migrating Atlantic salmon smolt (Salmo salar) in Evangervatnet
(Master thesis, 2016-11-21)Total dissolved gas supersaturation (TDGS) downstream of power plants may cause harmful effects on the fauna in many rivers. The harmful effects of TDGS are known as gas bubble disease (GBD). TDGS has been proposed as one ... -
Fangst av krill og torsk (Gadus morhua) ved bruk av lys; effekt av lyskildens egenskaper.
(Master thesis, 2018-06-26)Krillens adferd rundt lys er lite studert i felt, men er viktig med tanke på utviklingen innen teinefiske etter fisk (Torsk, Gadus morhua), da det brukes lys for å tiltrekke levende bytte og motivere fisken til å gå i ... -
Fish protein hydrolysates based on Atlantic salmon by-products. Enzyme cost-efficiency and characterization of sensory, surface-active and nutritional properties
(Doctoral thesis, 2016-06-21)The world fisheries and fish farming industries generate large amounts of by-products after the primary processing of fish to edible products. In Norway alone, this accounted for almost 900,000 tons in 2014. Based on present ... -
Isolation and Characterisation of Shiga Toxin-Producing Escherichia Coli from Norwegian Bivalves
(Master thesis, 2017-06-23)Only few studies concerning Shiga toxin-producing E. coli (STEC) detection in coastal environments and bivalves have been reported and there have been no reported outbreaks by STEC from bivalves in the world. The aim of ... -
Kadmium i strandkrabbe (Carcinus maenas) - sammenlikning mellom Nord- og Sør-Norge, samt prøvetaking i en kadmiumpåvirket fjord
(Master thesis, 2017-04-28)I taskekrabbe (Cancer pagurus) langs norskekysten er det målt høye konsentrasjoner av miljøgiften kadmium, med betydelig høyere nivåer i Nord- sammenliknet med Sør-Norge. Den klare nord-sør gradienten i taskekrabbens ... -
Kadmium i taskekrabben (Cancer pagurus) relatert til størrelse og biologi: En sammenligning av krabber fra Nord- og Sør-Norge
(Master thesis, 2017-04-28)Taskekrabben (Cancer pagurus) er en populær sjømat-art som fiskes både kommersielt og av fritidsfiskere. I 2009 ble det funnet kadmiumverdier i klokjøtt over grenseverdi hos krabbe fra Nord-Norge. Dette satte i gang en ... -
Late winter response to atmospheric and tidal forcing in the Førdefjord, inferred from mooring observations
(Master thesis, 2018-06-20)The Førdefjord is a narrow fjord on the western coast of Norway. A shallow sill is situated at the Ålasund, in the centre part of the fjord. A deep basin, 3 km north of the sill, has been approved as a deposit site for ... -
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 ... -
Mineraldannende prosesser, biosignaturer og finkornede sedimenter i karstgrotter ved Reingardslivatnet, Mo i Rana
(Master thesis, 2018-09-11)Reingardslisystemet er et grottesystem utviklet i en marmorsone som strekker seg 2,5 km i øst-vestlig retning i Reingardslia (Mo i Rana). Systemet regnes i dag som et av de lengste grottesystemene i Norge med en total ... -
Phenology and Spatial Dynamics of Cacopsylla melanoneura (Homoptera:Psyllidae) in Western Norway, an Insect Vector for Apple Proliferation
(Master thesis, 2017-06-21)In the last decade, the plant disease apple proliferation has caused problems for Norwegian fruit farmers, resulting in smaller and un-tasty apples, rendering them unsellable. The disease is caused by the phytoplasma ... -
Population genetics of Saccharina latissima (sugar kelp) in Norway
(Master thesis, 2019-05-01)The interest in cultivating sugar kelp, Saccharina latissima in Norway is increasing and therefore knowledge about the population genetics of this species is important. A total of 345 samples were genotyped from sixteen ... -
Potensialet for dyp geotermisk energi i Norge: Modellering av varmeutvinning fra konstruerte geotermiske system
(Master thesis, 2010-10-05)Dette prosjektet tar for seg to ulike modeller for et konstruert geotermisk system; et lukket enkeltbrønn-system og et åpent, sprekkdominert system. Enkeltbrønn-systemet er modellert eksplisitt, og modellen er også tilpasset ... -
Predicting and assessing climate-change impacts on the population dynamics of alpine and lowland forbs
(Doctoral thesis, 2015-05-29)Background and aims: Global climate change is already affecting plant species worldwide. The global rise in temperatures and regional changes in precipitation are predicted to continue throughout the century. Therefore, ... -
Recreational fishing for Nephrops in Hordaland, Norway - catches and potential mercury intake
(Master thesis, 2018-06-26)Few studies provide information about recreational fishing in Norway. As recreational fishing often occurs in areas close to high-density surroundings, possibly affected by environmental pollutants, it is important to ... -
Rekonstruksjon av flommer i Vossovassdraget de siste tusen år
(Master thesis, 2018-06-20)Lake sediments have the potential to register past flood events beyond historical and instrumental archives. In this study, several sediment cores from the bottom of lake Vangsvatnet have been studied to identify flood ... -
Seasonal and Interannual Variations of Surface Nutrients and Hydrography in the Norwegian Sea
(Master thesis, 2012-10-01)Seasonal and interannual variations of surface nutrients and hydrography data obtained in period (1997-2010) by the Institute of Marine Research over three transects: Fugløya-Bjørnøya, Gimsøy and Svinøy located in the ...