Blar i Brage IMR på forfatter "Harboe, Torstein"
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A biotest system for optimalization of environmental parameters for production of halibut fry
Mangor-Jensen, Anders; Jelmert, Anders; Naas, Kjell Emil; Harboe, Torstein; Skiftesvik, Anne Berit (ICES CM Documents;1987/F:21, Working paper, 1987)A system for controlled testing of different environmental parameters in seawater was made. Both the biotest system and an experimental setup using larvae of the Atlantic Halibut (Hippoglossus hippoglossus L.) are described. -
A comparison of growth rate of halibut larvae (Hippoglossus hippoglossus L.) fed wild zooplankton and enriched Artemia
Skjolddal, Lillian; Harboe, Torstein; Næss, Tore Håkon; Naas, Kjell Emil; Rabben, Håvard (ICES CM Documents;1990/F:60, Working paper, 1990)Halibut larvae at an age of 267 day degrees post hatching, were reared through first feeding, outdoors in 100 l plastic bags. There were three feeding regimes: wild zooplankton, Artemia enriched on the algae Isochrysis ... -
A pilot study of halibut larvae (Hippoglossus hippoglossus L.) reared from start feeding to metamorphosis on diets of wild zooplankton and Artemia
Boxaspen, Karin; Harboe, Torstein; Skjolddal, Lillian (ICES CM Documents;1990/F:52, Working paper, 1990)Halibut larvae ready to start feed were placed in two outdoor tanks of 7 m^3. The larvae in one tank were fed wild zooplankton throughout the whole period, and the larvae in the other tank were fed wild zooplankton from ... -
Age of Atlantic halibut larvae (Hippoglossus hippoglossus L.) at first feeding
Harboe, Torstein; Næss, Tore Håkon; Naas, Kjell Emil; Rabben, Håvard; Skjolddal, Lillian (ICES CM Documents;1990/F:53, Working paper, 1990)Halibut larvae at different age (150 to 315 day-degrees) were transferred to outdoor startfeeding tanks each with two internal plastic bags (100 litre). The larvae were fed wild zooplankton. One bag was sampled after 24 ... -
Change in nutrient composition of Artemia grown for 3–4 days and effects of feeding on-grown Artemia on performance of Atlantic halibut (Hippoglossus hippoglossus, L.) larvae
Hamre, Kristin; Erstad, Børre; de Kok, Jori; Norberg, Birgitta; Harboe, Torstein (Peer reviewed; Journal article, 2020) -
Differential developmental toxicity of crude oil in early life stages of Atlantic halibut (Hippoglossus hippoglossus)
Perrichon, Prescilla; Donald, Carey; Sørhus, Elin; Harboe, Torstein; Meier, Sonnich (Peer reviewed; Journal article, 2021)To further understand the complexity of developmental toxicity of dispersed oil and importance of exposure timing on fish early life stages, Atlantic halibut (Hippoglossus hippoglossus) were exposed to environmentally ... -
Effect of increased pCO2 level on early shell development in great scallop (Pecten maximus Lamarck) larvae
Andersen, Sissel; Grefsrud, Ellen Sofie; Harboe, Torstein (Journal article; Peer reviewed, 2013-10-01)As a result of high anthropogenic CO2 emissions, the concentration of CO2 in the oceans has increased, causing a decrease in pH, known as ocean acidification (OA). Numerous studies have shown negative effects on marine ... -
Effect of water temperature and exposure duration on detachment rate of salmon lice (Lepeophtheirus salmonis); testing the relevant thermal spectrum used for delousing
Nilsson, Jonatan; Barrett, Luke T.; Mangor-Jensen, Anders; Nola, Velimir; Harboe, Torstein; Folkedal, Ole (Peer reviewed; Journal article, 2023)Thermal delousing has become the most applied method for treatment against salmon lice. However, the temperature range used is strongly aversive for salmonids, and the method is associated with increased mortality. Treatment ... -
Efficacy of florfenicol in the treatment of bacterial infections in halibut, Hippoglossus hippoglossus (L.), larvae
Roiha, Irja Sunde; Samuelsen, Ole Bent; Harboe, Torstein (Journal article; Peer reviewed, 2011-10-17) -
Flow cytometric characterization and enumeration of Chrysochromulina polylepis during a bloom along the Norwegian coast
Børsheim, Knut Yngve; Harboe, Torstein; Johnsen, Torbjørn Martin; Norland, Svein; Nygaard, Kari (Journal article; Peer reviewed, 1989-06-22)Flow cytometry was used to count the concentration of the alga Chrysochromulina polylepis Manton & Parke during a bloom along the Western and Southern Norwegian coasts. Fresh samples could be counted without fixation ... -
Functional modifications associated with gastrointestinal tract organogenesis during metamorphosis in Atlantic halibut (Hippoglossus hippoglossus)
Gomes, Ana S.; Kamisaka, Yuko; Harboe, Torstein; Power, Deborah M; Ronnestad, Ivar (Journal article; Peer reviewed, 2014-02-19)Background: Flatfish metamorphosis is a hormone regulated post-embryonic developmental event that transforms a symmetric larva into an asymmetric juvenile. In altricial-gastric teleost fish, differentiation of the stomach ... -
Green water in larviculture - An experiment with natural phytoplankton in tanks for first feeding of halibut larvae (Hippoglossus hippoglossus L.)
Næss, Tore Håkon; Bergh, Øivind; Harboe, Torstein; Naas, Kjell Emil; Rabben, Håvard; Skjolddal, Lillian (ICES CM Documents;1990/F:61, Working paper, 1990)At 232 day degrees, halibut larvae were transferred from indoor tanks to 1.7 m^3 outdoor tanks for first feeding. The number in each tank was approximately 750. Three tanks were continuously given algal suspension ("green ... -
Heterochiasmy and the establishment of gsdf as a novel sex determining gene in Atlantic halibut
Edvardsen, Rolf Brudvik; Wallerman, Ola; Furmanek, Tomasz; Kleppe, Lene; Jern, Patric; Wallberg, Andreas; Kjærner-Semb, Erik Nordtorp; Mæhle, Stig; Olausson, Sara; Sundström, Elisabeth; Harboe, Torstein; Mangor-Jensen, Ragnfrid; Drønen, Margareth Møgster; Perrichon, Prescilla; Norberg, Birgitta; Rubin, Carl-Johan (Peer reviewed; Journal article, 2022)Atlantic Halibut (Hippoglossus hippoglossus) has a X/Y genetic sex determination system, but the sex determining factor is not known. We produced a high-quality genome assembly from a male and identified parts of chromosome ... -
Incubation of halibut yolk sac larvae improved by addition of freshwater and oxygen
Holm, Jens Christian; Naas, Kjell Emil; Harboe, Torstein; Skår, Sjur Åge (ICES CM Documents;1998/L:14, Working paper, 1998)Halibut fry has been produced regularly by scientific and commercial institutions since late 80- ties. The yearly number of halibut fry produced have, however, not fulfllled the optimistic expectations. This could partly ... -
Iodine nutrition and toxicity in Atlantic cod (Gadus morhua) larvae
Penglase, Samuel; Harboe, Torstein; Sæle, Øystein; Helland, Synnøve; Nordgreen, Andreas Hoel; Hamre, Kristin (Journal article; Peer reviewed, 2013-02-19)Copepods as feed promote better growth and development in marine fish larvae than rotifers. However, unlike rotifers, copepods contain several minerals such as iodine (I), at potentially toxic levels. Iodine is an essential ... -
Limited evidence for differential reproductive fitness of wild Atlantic cod in two areas of high and low salmon farming density
Barrett, Luke; Swearer, Stephen E.; Harboe, Torstein; Karlsen, Ørjan; Meier, Sonnich; Dempster, Timothy David (Journal article; Peer reviewed, 2018)Sea cage fish aquaculture attracts large aggregations of wild fish that feed on farm waste. Fish that associate closely with farms undergo physiological changes, and captive feeding trials indicate possible negative effects ... -
Minstestørrelse på rensefisk ved utsett i oppdrettsnøter for å hindre rømming - Del 1: Bergnebb og små grønngylte
Jørgensen, Terje; Halvorsen, Kim Aleksander Tallaksen; Skiftesvik, Anne Berit; Harboe, Torstein; Sistiaga, Manu; Bjelland, Reidun Marie; Kvalvik, Liz Beate Kolstad (Rapport fra havforskningen;2024 - 33, Research report, 2024)Rapporten beskriver hvilken minstestørrelse av bergnebb og grønngylte som må benyttes ved utsett i oppdrettsnøter med en gitt maskeåpning for å hindre rømming. Minstestørrelsene er basert på trengingsforsøk i tank og ... -
A new cleaning system for rearing tanks in larval fish culture
van der Meeren, Terje; Harboe, Torstein; Holm, Jens Christian; Solbakken, Roar (ICES CM documents, Working paper, 1998) -
Quantitative proteome profiling reveals molecular hallmarks of egg quality in Atlantic halibut: impairments of transcription and protein folding impede protein and energy homeostasis during early development
Yilmaz, Ozlem; Mangor-Jensen, Anders; Harboe, Torstein; Drønen, Margareth Møgster; Mangor-Jensen, Ragnfrid; Mjaavatten, Olav; Birkeland, Even; Spriet, Endy; Sandven, Linda; Furmanek, Tomasz; Berven, Frode Steingrimsen; Wargelius, Anna; Norberg, Birgitta (Peer reviewed; Journal article, 2022)Tandem mass tag spectrometry (TMT labeling-LC-MS/MS) was utilized to examine the global proteomes of Atlantic halibut eggs at the 1-cell-stage post fertilization. Comparisons were made between eggs judged to be of good ... -
Sensitivity towards elevated pCO2 in great scallop (Pecten maximus Lamarck) embryos and fed larvae
Andersen, Sissel; Grefsrud, Ellen Sofie; Harboe, Torstein (Peer reviewed; Journal article, 2017)