Browsing Department of Biological Sciences by Title
Now showing items 565-584 of 2235
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Effect of Anisakis simplex (sl) larvae on the spoilage rate and shelf-life of fish mince products under laboratory conditions
(Peer reviewed; Journal article, 2014-12)Wild caught marine fish are commonly infected with anisakid nematodes lodging in the intestinal linings or in the fish muscle. One of the most commonly found nematode parasites in marine fish is Anisakis simplex. During ... -
Effect of carcass contamination on necrophagous invertebrate performance
(Journal article; Peer reviewed, 2021)Background The breakdown of dead organic matter is driven by a diverse array of organisms and is an important process increasingly impacted by a range of contaminants. While many studies have documented how contaminants ... -
The effect of climate variation and food availability on breeding success in Atlantic puffins at Hjelmsøya, Northern Norway
(Master thesis, 2016-05-27)The colony of Atlantic puffins (Fratercula arctica) at Hjelmsøya, in Northern Norway has experienced extensive annual fluctuations in breeding success. To investigate how climate variability affects the population dynamics ... -
The effect of CO2, total ammonia nitrogen and pH on growth of juvenile lumpfish (Cyclopterus lumpus)
(Journal article; Peer reviewed, 2023)The objective of this study was to examine the effects of CO2, total ammonia nitrogen (TAN: nitrogen bound as either NH3 or NH4+) and pH on the growth and survival of juvenile lumpfish in a two-month growth study. The ... -
The effect of continuous light at low temperatures on growth in Atlantic salmon reared in commercial size sea pens
(Peer reviewed; Journal article, 2017-10)The aim of this study was to investigate the effect of continuous light of different duration, applied from late autumn to spring in the second year of the production cycle, on the production performance of Atlantic salmon ... -
Effect of diet on molecular relationships between Atlantic cod larval muscle growth dynamics, metabolism, and antioxidant defense system
(Journal article; Peer reviewed, 2022)We studied molecular effects (RNAseq and qPCR) of first feeding prey types (copepods or rotifers/Artemia) on skeletal muscle myogenesis and growth dynamics (proliferation, differentiation), metabolism (glycolysis, ... -
Effect of different filter methods on water quality to a marine scallop hatchery
(Master thesis, 2010-05-31)Water quality in marine hatcheries is a critical aspect in the production of spat. Different filtering methods have been used to treat the intake seawater in the hatcheries. The Scalpro AS hatchery uses two different types ... -
The effect of fish behaviour and spatial structures on acoustic and trawl surveys
(Doctoral thesis, 2007-12-14)Time series of scientific survey estimates of fisheries resources are used to measure changes in stock size and composition. Standardization of sampling equipment and design is regarded crucial for reliable trawl and ... -
The effect of foraging ecology on the onset of dawn song for passerine species
(Master thesis, 2018-11-20)Passerine birds have a burst of energetic singing prior to sunrise during the breeding season, called the dawn chorus. In this thesis, I examine how interspecific differences in foraging ecology can explain the scheduling ... -
The effect of grazing and hiking on the elevational range shift of vascular plant species in the Scandes during recent decades
(Master thesis, 2016-06-01)Resurvey of historical plant distribution data can provide valuable information about how plant communities have changed, a topic which is of great interest due to recent decades of climate and land use change. Range shifts ... -
The effect of halide salts on the uptake, deposition and depuration rate of radioiodine in zebrafish (Danio rerio)
(Master thesis, 2013-07-01) -
The effect of hydrodynamics on benthic macrofaunal composition and functioning under salmon fish farms
(Master thesis, 2015-08-17)The fish farming industry has continued to increase over the last years, and salmon fish farms in Norway continue to grow in numbers. With this growing aquaculture, there is also a larger need to quantify the environmental ... -
Effect of increased rearing temperature on digestive function in cobia early juvenile
(Peer reviewed; Journal article, 2019)The present study is focused to elucidate the main characteristics of the digestive function of this carnivorous fast-growing fish living at high temperatures. With this aim, we have examined the effects of an increased ... -
Effect of initial biomass-specific photon supply rate on fatty acid accumulation in nitrogen depleted Nannochloropsis gaditana under simulated outdoor light conditions
(Peer reviewed; Journal article, 2018-11)Triacylglycerol (TAG) accumulation in the microalgae Nannochloropsis gaditana is induced by nitrogen starvation and dependent on the light supplied. We studied under simulated outdoor light conditions the effect of supplied ... -
Effect of levels and sources of dietary manganese on growth and mineral composition of post-smolt Atlantic salmon fed low fish meal, plant-based ingredient diets
(Peer reviewed; Journal article, 2019-10-15)The impact of dietary manganese (Mn) levels and sources on the growth and mineral composition of post-smolt Atlantic salmon (Salmo salar) fed practical diets was studied. Seven experimental diets were prepared with graded ... -
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 ... -
The effect of nutritional condition by two nucleic acid derived indices on the growth to post-flexion of Atlantic bluefin tuna and Atlantic bonito larvae
(Peer reviewed; Journal article, 2019)Notochord flexion increases the swimming capacity of fish larvae, aids in the capture of mobile prey, and coincides with the timing of when the physiological capacities of larvae begin to develop significantly, allowing ... -
Effect of Photoperiod and Transfer Time on Atlantic Salmon Smolt Quality and Growth in Freshwater and Seawater Aquaculture Systems
(Journal article; Peer reviewed, 2023)Smoltification is a key process in Atlantic salmon aquaculture, given it prepares the fish for a successful transit from fresh to seawater. However, industry players have not yet reached a consensus on the best protocols ... -
The effect of photoperiod manipulation on Atlantic salmon growth, smoltification and sexual maturation: A case study of a commercial RAS
(Journal article; Peer reviewed, 2021)The effect of photoperiod manipulation on growth, smoltification and maturation was assessed in Atlantic salmon through an observational study performed in a commercial RAS facility from June (25.0 ± 11.0 g) to October ... -
The effect of plant proteins and vegetable oils on the sterol metabolism of Atlantic salmon (salmo salar)
(Master thesis, 2011-05-27)To ensure responsible use of the valuable marine ingredients a major effort is being invested in understanding effects of replacing fish meal and fish oil partially or completely with plant proteins and vegetable oils in ...