Blar i Brage IMR på forfatter "Thorsen, Anders"
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Skreitokt 2020 - Kartlegging av gytebestanden av skrei 2020
Korsbrekke, Knut; Thorsen, Anders (Rapport fra havforskningen;2020 - 32, Research report, 2020)Toktets akustiske dekning av torsk, hyse og sei dekket kystområdet fra 71° nord sørover til og med Røstbanken, samt Vestfjorden. Dekningen ga et mengdeanslag på 553 tusen tonn skrei (aldersgruppene 5+, modne individer). ... -
Skreitokt 2021 - Kartlegging av gytebestanden av skrei i 2021
Fuglebakk, Edvin; Thorsen, Anders (Toktrapport;2022 - 1, Research report, 2022)Toktnummer 2021204 -
Skreitokt 2022 - Kartlegging av gytebestanden av skrei i 2022
Fuglebakk, Edvin; Thorsen, Anders (Toktrapport;2022 - 10, Research report, 2022)Toktet dekket kystområdet fra 70° nord sørover til og med Røstbanken, samt Vestfjorden, og ga et mengdeanslag på 181 tusen tonn moden skrei (aldersgruppene eldre enn 5 år). Dette er noe lavere enn fjorårets resultat. ... -
Skreitokt 2023 — Kartlegging av gytebestanden av skrei i 2023
Fuglebakk, Edvin; Thorsen, Anders (Toktrapport;2023 - 7, Research report, 2023)Toktet dekket kystområdet fra 70° nord sørover til og med Røstbanken, samt Vestfjorden, og ga et mengdeanslag på 128 tusen tonn moden skrei (aldersgruppene eldre enn 5 år). Dette er noe lavere enn de siste års resultat, ... -
Spawner quality effects on two measures of reproductive potential: have we been counting our eggs before they've hatched?
Marshall, C. Tara; Kjesbu, Olav Sigurd; Thorsen, Anders; Solemdal, Per (ICES CM documents, Working paper, 1999)Recent studies have found positive associations between recruitment and indices of spawner quality (condition) for stocks exhibiting an indeterminate relationship between recruitment and spawner biomass. This suggests ... -
Spawning time in adult polar cod (Boreogadus saida) altered by crude oil exposure, independent of food availability
Strople, Leah Catherine; Vieweg, Ireen; Yadetie, Fekadu; Odei, Derrick Kwame; Thorsen, Anders; Karlsen, Odd André; Goksøyr, Anders; Sørensen, Lisbet; Sarno, Antonio; Hansen, Bjørn Henrik; Frantzen, marianne; Hansen, Øyvind J; Puvanendran, Velmurugu; Nahrgang, Jasmine (Peer reviewed; Journal article, 2023)Fish early life stages are well known for their sensitivity to crude oil exposure. However, the effect of crude oil exposure on adults and their gametes during their spawning period is not well studied. Polar cod, a key ... -
Systematic bias in estimates of reproductive potential of an Atlantic cod (Gadus morhua) stock: implications for stock–recruit theory and management
Marshall, C. Tara; Needle, Coby L.; Thorsen, Anders; Kjesbu, Olav Sigurd; Yaragina, Natalia A. (Journal article; Peer reviewed, 2006)Stock–recruit relationships that use spawning stock biomass (SSB) to represent reproductive potential assume that the proportion of SSB composed of females and the relative fecundity (number of eggs produced per unit ... -
Systematic bias in estimates of reproductive potential of cod stocks: implications for stock/recruit theory and management
Marshall, C. Tara; Needle, Coby L.; Thorsen, Anders; Kjesbu, Olav Sigurd; Yaragina, Natalia A. (ICES CM documents, Working paper, 2005)Stock/recruit relationships, describing the relationship between the parental population and the number of offspring produced, are a central tool in population ecology. For fish populations the stock/recruit relationship ... -
Thermal dynamics of ovarian maturation in Atlantic cod (Gadus Morhua)
Kjesbu, Olav Sigurd; Righton, David; Krüger-Johnsen, Maria; Thorsen, Anders; Michalsen, Kathrine; Fonn, Merete; Witthames, Peter R. (Journal article; Peer reviewed, 2010-03)The timing and success of spawning in marine fish are of fundamental importance to population persistence and distribution and, for commercial species, sustainability. Their physiological processes of reproduction are ... -
Triploid Atlantic salmon Salmo salar have a higher dietary phosphorus requirement for bone mineralization during early development
Sambraus, Florian; Hansen, Tom Johnny; Daae, Britt Sværen; Thorsen, Anders; Sandvik, Roar; Stien, Lars Helge; Fraser, Thomas; Fjelldal, Per Gunnar (Peer reviewed; Journal article, 2020)The effect of a dietary phosphorus regime in freshwater on vertebra bone mineralization was assessed in diploid and triploid Atlantic salmon, Salmo salar. Fish were fed either a low phosphorus (LP) diet containing 10.5 ... -
Unexpected Interaction with Dispersed Crude Oil Droplets Drives Severe Toxicity in Atlantic Haddock Embryos
Sørhus, Elin; Edvardsen, Rolf B.; Karlsen, Ørjan; Nordtug, Trond; van der Meeren, Terje; Thorsen, Anders; Harman, Christopher; Jentoft, Sissel; Meier, Sonnich (Journal article; Peer reviewed, 2015-04-29)The toxicity resulting from exposure to oil droplets in marine fish embryos and larvae is still subject for debate. The most detailed studies have investigated the effects of water-dissolved components of crude oil in water ... -
Untangling mechanisms of crude oil toxicity: Linking gene expression, morphology and PAHs at two developmental stages in a cold-water fish
Sørhus, Elin; Donald, Carey; Da Silva, Denis; Thorsen, Anders; Karlsen, Ørjan; Meier, Sonnich (Peer reviewed; Journal article, 2020) -
Using ObjectJ for fish oocyte and egg measurements; Hough transform, particle analysis, manual size measurements, and categorization
Thorsen, Anders; Vischer, Norbert; van Damme, Cindy J. G. (Conference object, 2010) -
Vgll3 and the Hippo pathway are regulated in Sertoli cells upon entry and during puberty in Atlantic salmon testis
Kjærner-Semb, Erik Nordtorp; Ayllon, Fernando; Kleppe, Lene; Sørhus, Elin; Skaftnesmo, Kai Ove; Furmanek, Tomasz; Segafredo, Frida Thyri; Thorsen, Anders; Fjelldal, Per Gunnar; Hansen, Tom Johnny; Taranger, Geir Lasse; Andersson, Eva; Schulz, Rüdiger W.; Wargelius, Anna; Edvardsen, Rolf (Journal article; Peer reviewed, 2018)Vgll3 is linked to age at maturity in Atlantic salmon (Salmo salar). However, the molecular mechanisms involving Vgll3 in controlling timing of puberty as well as relevant tissue and cell types are currently unknown. Vgll3 ... -
Water temperature and dietary histidine affect cataract formation in Atlantic salmon (Salmo salar L.) diploid and triploid yearling smolt
Sambraus, Florian; Fjelldal, Per Gunnar; Remø, Sofie C.; Hevrøy, Ernst Morten; Nilsen, Tom Ole; Thorsen, Anders; Hansen, Tom Johnny; Waagbø, Rune (Peer reviewed; Journal article, 2017)