Blar i Department of Biological Sciences på forfatter "Roth, Bjørn"
-
Assessing the effectiveness of an electricalstunning and chilling protocol for theslaughter of Atlantic mackerel (Scomber scombrus)
Anders, Neil; Roth, Bjørn; Grimsbø, Endre; Breen, Michael (Peer reviewed; Journal article, 2019-09-04)Inducing unconsciousness in fish using electrical stunning prior to slaughter may improve fish welfare and fillet quality if such practises can be disseminated into wild capture fisheries. The objectives of this study were ... -
Catch me if you can: How to recapture lumpfish using light as an attractant
Foss, Atle; Imsland, Albert; Roth, Bjørn; Nytrø, Ane Vigdisdatter (Journal article; Peer reviewed, 2020)The use of lumpfish in salmon farming allows the removal of sea lice all year round, without the use of chemicals or mechanical treatments. In Norway alone, around 31 million lumpfish are currently put into sea pens whereas ... -
A comparative study on quality, shelf life and sensory attributes of Atlantic salmon slaughtered on board slaughter vessels against traditional land-based facilities
Skare, Maren; Chan, Sherry Stephanie; Handeland, Sigurd Olav; Løvdal, Trond; Lerfall, Jørgen; Roth, Bjørn (Journal article; Peer reviewed, 2021)The purpose of this study was to investigate the shelf life and quality of Atlantic salmon (Salmo salar) slaughtered onboard vessels and shipped to Denmark in −0.8 °C refrigerated seawater (RSW) as compared to traditional ... -
The effect of alternate-day feeding on growth and feed conversion in Atlantic cod Gadus morhua
Bjørnevik, Marit; Imsland, Albert K. D.; Hanssen, Henriette; Roth, Bjørn; Vikingstad, Erik; Foss, Atle (Journal article; Peer reviewed, 2021)This study aimed to investigate the effect of alternating feeding (Alt) compared with control being fed every day (Con) in the on-growth face of Atlantic cod. Individually marked fish (198 and 98 in the Con and Alt groups, ... -
The effect of continuous light at low temperatures on growth in Atlantic salmon reared in commercial size sea pens
Imsland, Albert; Roth, Bjørn; Fjelldal, Per Gunnar; Stefansson, Sigurd Olav; Handeland, Sigurd Olav; Mikalsen, Bjørn (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 ... -
Effects of short-term starvation periods on flesh quality in Arctic charr (Salvelinus alpinus) in different seasons
Imsland, Albert K.D.; Roth, Bjørn; Christensen, Line Bach; Siikavuopio, Sten Ivar; Foss, Atle (Journal article; Peer reviewed, 2020)Possible effects of short‐term starvation on flesh quality in Arctic charr were studied in spring (March) and summer (August). Groups of juvenile Arctic charr (mean weight March 536 g ± 24; August 461 g ± 15 SEM) were ... -
Electrical Stunning of Edible Crabs
Roth, Bjørn; Grimsbø, Endre (Research report, 2013)In the project StunCrab, kindly supported by the Norwegian Research Council, SeaSide AS, Hitramat AS and Nofima has successfully developed and implemented electrical stunning of edible crab. The research has shown highest ... -
Flesh quality of Atlantic salmon smolts reared at different temperatures and photoperiods
Imsland, Albert; Roth, Bjørn; Døskeland, Inge; Fjelldal, Per Gunnar; Stefansson, Sigurd Olav; Handeland, Sigurd O; Mikalsen, Bjørn (Peer reviewed; Journal article, 2019)Possible interactive effects of temperature and photoperiod on flesh quality in Atlantic salmon post‐smolts were studied. Juvenile (initial mean weight 96.0 g ± 3.1 SEM ) Atlantic salmon were reared at six different ... -
The influence of anaerobic muscle activity, maturation and season on the flesh quality of farmed turbot
Roth, Bjørn; Imsland, Albert K.; Stien, Lars Helge; Schelvis-Smit, Rian; Gunnarsson, Snorri; Foss, Atle (Peer reviewed; Journal article, 2010-04-26)In order to test seasonal, rearing, maturing and anaerobic muscle activity effect on the flesh quality of turbot (Scophthalmus maximus) a total of 80 farmed turbot from three different strains from reared under natural or ... -
Physiological and flesh quality consequences of pre-mortem crowding stress in Atlantic mackerel (Scomber scombrus)
Anders, Neil; Eide, Ida; Lerfall, Jørgen; Roth, Bjørn; Breen, Michael (Journal article; Peer reviewed, 2020-02-13)In commercial wild capture pelagic fisheries it is common practice to crowd catches to high densities to allow efficient pumping onboard. Crowding during the final stages of purse seine capture for small pelagic species ... -
Physiological response of temperature shocks in turbot and sole
Foss, Atle; Imsland, Albert; van de Vis, Hans; Abbink, Wout; Lambooij, Bert; Roth, Bjørn (Peer reviewed; Journal article, 2019)In the present study, selected temperature drops were examined to investigate the effects of live chilling on stress and welfare in turbot and sole. This study demonstrated that rapid temperature drops from 11°C–12°C and ...