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Fish Biology, Age and Growth, Otolith Shape and Microchemistry, Larval Fish Biology, Aquaculture

  • Vis forfatter(e) (2023). Limited evidence for species-specific sensitivity of temperature-dependent fractionation of oxygen stable isotope in biominerals: A meta-analysis. Methods in Ecology and Evolution.
  • Vis forfatter(e) (2023). Can otolith macrostructures be used to reconstruct individual maturity and spawning?
  • Vis forfatter(e) (2022). Growth portfolios buffer climate-linked environmental change in marine systems. Ecology. 16 sider.
  • Vis forfatter(e) (2021). Set in stones: the influence of long-term environmental changes on Northeast Arctic cod viewed through the analysis of otoliths.
  • Vis forfatter(e) (2021). Otolith “spawning zones” across multiple Atlantic cod populations: Do they accurately record maturity and spawning? PLOS ONE. 23 sider.
  • Vis forfatter(e) (2021). Linking dispersal connectivity to population structure and management boundaries for saithe in the Northeast Atlantic. Marine Ecology Progress Series. 177-191.
  • Vis forfatter(e) (2021). Lemon sole Microstomus kitt in the northern North Sea: a multidisciplinary approach to the early life-history dynamics. Journal of Fish Biology. 569-580.
  • Vis forfatter(e) (2021). Elemental composition of illicia and otoliths and their potential application to age validation in white anglerfish (Lophius piscatorius linnaeus, 1758). Estuarine, Coastal and Shelf Science.
  • Vis forfatter(e) (2021). Differences in metabolic rate between two Atlantic cod (Gadus morhua) populations estimated with carbon isotopic composition in otoliths. PLOS ONE. 1-19.
  • Vis forfatter(e) (2020). Ontogenetic movements of cod in Arctic fjords and the Barents Sea as revealed by otolith microchemistry. Polar Biology. 409-421.
  • Vis forfatter(e) (2020). Long-term temporal stability of Northeast Arctic cod (Gadus morhua) otolith morphology. ICES Journal of Marine Science. 1043-1054.
  • Vis forfatter(e) (2020). Cophylogenetic analysis of the relationship between anemonefish Amphiprion (Perciformes: Pomacentridae) and their symbiotic host anemones (Anthozoa: Actiniaria). Marine Biology Research. 117-133.
  • Vis forfatter(e) (2020). Century-long cod otolith biochronology reveals individual growth plasticity in response to temperature. Scientific Reports. 1-13.
  • Vis forfatter(e) (2020). A century of fish growth in relation to climate change, population dynamics and exploitation. Global Change Biology. 5661-5678.
  • Vis forfatter(e) (2019). The sustainable use and exploitation of fishes. Journal of Fish Biology. 833-836.
  • Vis forfatter(e) (2019). Otoliths as life history indicators.
  • Vis forfatter(e) (2019). Investigating long term temporal stability of otolith morphometry of Northeast Arctic cod (Gadus morhua).
  • Vis forfatter(e) (2019). Host choice and fitness of anemonefish Amphiprion ocellaris (Perciformes: Pomacentridae) living with host anemones (Anthozoa: Actiniaria) in captive conditions. Journal of Fish Biology. 937-947.
  • Vis forfatter(e) (2019). Extensive larval dispersal and restricted movement of juveniles on the nursery grounds of sole in the Southern North Sea. Journal of Sea Research. 1-12.
  • Vis forfatter(e) (2019). Author Correction: Gene-associated markers provide tools for tackling illegal fishing and false eco-certification (Nature Communications, (2012), 3, 1, (851), 10.1038/ncomms1845). Nature Communications.
  • Vis forfatter(e) (2018). The development and application of stable oxygen isotope records of Arctica islandica (Bivalvia) shells in Holocene marine climatic reconstructions for the northern North Sea.
  • Vis forfatter(e) (2018). Spatial gradients and temporal variations in size at age of Northeast Arctic cod (Gadus morhua) off the coast of Norway during the last two decades.
  • Vis forfatter(e) (2018). Spatial and temporal dynamics of European hake (Merluccius merluccius) in the North Sea. ICES Journal of Marine Science. 2033-2044.
  • Vis forfatter(e) (2018). Molluscan sclerochronology on the Faroe Shelf. Climatic and ecological conditions inferred from shell properties of the bivalve species Arctica islandica.
  • Vis forfatter(e) (2017). Large and fine scale population structure in European hake (Merluccius merluccius) in the Northeast Atlantic. ICES Journal of Marine Science. 1300-1310.
  • Vis forfatter(e) (2017). Growth, egg production and hatching success of Acartia tonsa cultured at high densities. Aquaculture. 569-578.
  • Vis forfatter(e) (2016). Temporal and spatial patterns of reproductive indices of European hake (Merluccius merluccius) in the northern North Sea and Norwegian coastal areas. Fisheries Research. 200-209.
  • Vis forfatter(e) (2016). Fish otoliths as indicators in ecosystem based management: Results of the 5th International Otolith Symposium (IOS2014). Marine and Freshwater Research. i-iv.
  • Vis forfatter(e) (2015). The use of calcified tissues as tools to support management: The view from the 5th international otolith symposium. ICES Journal of Marine Science. 2073-2078.
  • Vis forfatter(e) (2015). The swimming kinematics and foraging behavior of larval Atlantic herring (Clupea harengus L.) are unaffected by elevated pCO2. Journal of Experimental Marine Biology and Ecology. 42-48.
  • Vis forfatter(e) (2015). Synergies between aquaculture and fisheries. 491-518. I:
    • Vis forfatter(e) (2015). Flatfishes, Biology and Exploitation, 2nd edition. Wiley-Blackwell.
  • Vis forfatter(e) (2015). Hvordan studere havets og klimaets historie? 28-34.
  • Vis forfatter(e) (2015). Flatfishes, Biology and Exploitation, 2nd edition. Wiley-Blackwell.
  • Vis forfatter(e) (2015). Age and Growth. 207-241. I:
    • Vis forfatter(e) (2015). Flatfishes, Biology and Exploitation, 2nd edition. Wiley-Blackwell.
  • Vis forfatter(e) (2014). The use of otoliths as DNA source in population genetics; population structure of European hake by the use of SNPs.
  • Vis forfatter(e) (2014). The proteome of Atlantic herring (Clupea harengus L.) larvae is resistant to elevated pCO2. Marine Pollution Bulletin. 154-160.
  • Vis forfatter(e) (2014). Post-settlement growth of hake from the Norwegian coast based on otolith microstructure analysis: Evidence for countergradient variation?
  • Vis forfatter(e) (2014). Outlier SNP markers reveal fine-scale genetic structuring across European hake populations (Merluccius merluccius). Molecular Ecology. 118-135.
  • Vis forfatter(e) (2014). Otoliths as life history indicators.
  • Vis forfatter(e) (2014). Organ damage in Atlantic herring larvae as a result of ocean acidification. Ecological Applications. 1131-1143.
  • Vis forfatter(e) (2014). Growth dynamics of European plaice Pleuronectes platessa L. in nursery areas: A review. Journal of Sea Research. 64-82.
  • Vis forfatter(e) (2014). Coping with connectivity between populations of Merluccius merluccius: An elusive topic. Journal of Marine Systems. 211-219.
  • Vis forfatter(e) (2013). The swimming kinematics of larval Atlantic cod, Gadus morhua L., are resilient to elevated seawater pCO2. Marine Biology.
  • Vis forfatter(e) (2013). The development of size variation in Dover sole, Solea solea and turbot, Scophthalmus maximus: genetic variability between different geographical and among year class farmed strains. Aquaculture Research. 1912-1925.
  • Vis forfatter(e) (2013). Temperature effect on growth and larval duration of plaice Pleuronectes platessa in three regions of the Northeast Atlantic. Marine Ecology Progress Series. 215-226.
  • Vis forfatter(e) (2013). Taxonomic and geographic influences on fish otolith microchemistry. Fish and Fisheries. 458-492.
  • Vis forfatter(e) (2013). Influence of the limit of detection on classification using otolith elemental signatures. Canadian Journal of Fisheries and Aquatic Sciences. 922-929.
  • Vis forfatter(e) (2013). Fantastically plastic: fish larvae equipped for a new world. Reviews in Aquaculture. S224-S267.
  • Vis forfatter(e) (2013). Effects of ocean acidification on the calcification of otoliths of larval Atlantic cod Gadus morhua. Marine Ecology Progress Series. 251-258.
  • Vis forfatter(e) (2013). Chemical analysis of otoliths: Cross validation between techniques and laboratories. Fisheries Research. 67-80.
  • Vis forfatter(e) (2013). A genomic island linked to ecotype divergence in Atlantic cod. Molecular Ecology. 2653-2667.
  • Vis forfatter(e) (2012). The effect of ablation pattern on LA-ICPMS analysis of otolith element composition in hake, Merluccius merluccius. Environmental Biology of Fishes. 509-520.
  • Vis forfatter(e) (2012). Severe tissue damage in Atlantic cod larvae under increasing ocean acidification. Nature Climate Change. 42-46.
  • Vis forfatter(e) (2012). Seasonal and ontogenic migrations of meagre (Argyrosomus regius) determined by otolith geochemical signatures. Fisheries Research. 154-165.
  • Vis forfatter(e) (2012). Otolith oxygen and carbon stable isotopes in wild and laboratory-reared plaice (Pleuronectes platessa). Environmental Biology of Fishes. 419-430.
  • Vis forfatter(e) (2012). Mortality in the early life-history of fish: What can we learn from European plaice (Pleuronectes platessa L.)? Journal of Marine Systems. 58-68.
  • Vis forfatter(e) (2012). Geographical variations in the chemical compositions of Veined Squid Loligo forbesi statoliths. Zoological Studies. 755-761.
  • Vis forfatter(e) (2012). Gene-associated markers provide tools for tackling illegal fishing and false eco-certification. Nature Communications.
  • Vis forfatter(e) (2012). Frequent skipped spawning in the world's largest cod population. Proceedings of the National Academy of Sciences of the United States of America. 8995-8999.
  • Vis forfatter(e) (2012). Egg development rates for use in egg production methods (EPMs) and beyond. Fisheries Research. 48-62.
  • Vis forfatter(e) (2012). Atlantic cod Gadus morhua in the Mediterranean: a surprising immigrant. Marine Ecology Progress Series. 277-280.
  • Vis forfatter(e) (2012). A comparison of techniques for measuring the trace element content of human teeth: laser ablation ICP-MS versus solution ICP-MS of micromilled enamel. International Journal of Analytical and Bioanalytical Chemistry. 189-195.
  • Vis forfatter(e) (2011). Tracing fish and fish products from ocean to fork using advanced molecular technologies.
  • Vis forfatter(e) (2011). Sub-cohort dynamics of 0-group plaice, Pleuronectes platessa L., in the Northern Irish Sea: Settlement, growth and mortality. Journal of Experimental Marine Biology and Ecology. 108-119.
  • Vis forfatter(e) (2011). Low-dose exposure to alkylphenols adversely affects the sexual development of Atlantic cod (Gadus morhua): Acceleration of the onset of puberty and delayed seasonal gonad development in mature female cod. Aquatic Toxicology. 136-150.
  • Vis forfatter(e) (2011). High-latitude climate variability and its effect on fisheries resources as revealed by fossil cod otoliths. ICES Journal of Marine Science. 1081-1089.
  • Vis forfatter(e) (2011). Evaluation of the frequency of skipped spawning in Norwegian spring-spawning herring. Journal of Sea Research. 327-332.
  • Vis forfatter(e) (2011). Characterization of herring populations west of the British Isles: an investigation of mixing based on otolith microchemistry. ICES Journal of Marine Science. 1447-1458.
  • Vis forfatter(e) (2010). The role of prey concentration and size range in the growth and survival of larval cod. Marine Biology Research. 251-262.
  • Vis forfatter(e) (2010). Temporal patterns of spatial genetic structure and effective population size in European plaice (Pleuronectes platessa) along the west coast of Scotland and in the Irish Sea. ICES Journal of Marine Science. 607-616.
  • Vis forfatter(e) (2010). Sperm motility in European hake, Merluccius merluccius, and characterization of its spermatozoa concentration and volume, spermatocrit, osmolality and pH. Aquaculture. 31-36.
  • Vis forfatter(e) (2010). Seasonality of human site occupation based on stable oxygen isotope ratios of cod otoliths. Journal of Archaeological Science. 78-83.
  • Vis forfatter(e) (2010). Multi-disciplinary fingerprints reveal the harvest location of cod Gadus morhua in the northeast Atlantic. Marine Ecology Progress Series. 197-206.
  • Vis forfatter(e) (2010). Microchemical variation in juvenile Solea solea otoliths as a powerful tool for studying connectivity in the North Sea. Marine Ecology Progress Series. 211-220.
  • Vis forfatter(e) (2010). Lessons learned from stock collapse and recovery of North Sea herring: a review. ICES Journal of Marine Science. 1875-1886.
  • Vis forfatter(e) (2010). Does DNA extraction affect the physical and chemical composition of historical cod (Gadus morhua) otoliths? ICES Journal of Marine Science. 1251-1259.
  • Vis forfatter(e) (2010). Development, validation and field application of an RNA-based growth index in juvenile plaice Pleuronectes platessa. Journal of Fish Biology. 2181-2209.
  • Vis forfatter(e) (2010). Development of Atlantic cod (Gadus morhua) exposed to produced water during early life stages: Effects on embryos, larvae, and juvenile fish. Marine Environmental Research. 383-394.
  • Vis forfatter(e) (2009). Variability in transport of fish eggs and larvae. IV. Interannual variability in larval stage duration of immigrating plaice in the Dutch Wadden Sea. Marine Ecology Progress Series. 213-223.
  • Vis forfatter(e) (2009). Interannual variability in larval plaice (Pleuronectes platessa L.) immigration in the western Dutch Wadden Sea: which factors are likely causing it? Marine Ecology Progress Series. 213-223.
  • Vis forfatter(e) (2009). Advances in herring biology: from simple to complex, coping with plasticity and adaptability. ICES Journal of Marine Science. 1688-1695.
  • Vis forfatter(e) (2008). Restricted fish feeding reduces cod otolith opacity. Journal of Applied Ichthyology. 138-143.
  • Vis forfatter(e) (2008). Potential variability in the paternal contribution to stock reproductive potential of Northeast Arctic cod (Gadus morhua). Journal of Northwest Atlantic Fishery Science. 71-83.
  • Vis forfatter(e) (2008). Estimating reproductive potential of male Barents Sea cod.
  • Vis forfatter(e) (2008). Diet overlap and prey selection through metamorphosis in Irish Sea cod (Gadus morhua), haddock (Melanogrammus aeglefinus), and whiting (Merlangius merlangus). Canadian Journal of Fisheries and Aquatic Sciences. 1297-1306.
  • Vis forfatter(e) (2008). Climate changes and their effects, as observed using hard tissues analyses.
  • Vis forfatter(e) (2008). Back-calculation of previous fish size using individually tagged and marked Atlantic cod (Gadus morhua). Canadian Journal of Fisheries and Aquatic Sciences. 2496-2508.
  • Vis forfatter(e) (2007). The effect of Prestige oil ingestion on the growth and chemical composition of turbot otoliths. Marine Pollution Bulletin. 1732-1741 .
  • Vis forfatter(e) (2007). The cost of metamorphosis in flatfishes. Journal of Sea Research. 35-45.
  • Vis forfatter(e) (2007). Testing an image analysis technique on larval and juvenile fish. A case study of morphometric development of Atlantic cod larvae (Gadus morhua) startfed on rotifers or zooplankton.
  • Vis forfatter(e) (2007). Produced water from the offshore oil-industry: Does it have any long-term effect on the reproductive perfomance of Atlantic cod (Gadus morhua)?
  • Vis forfatter(e) (2007). Oxygen isotope variation in European hake otoliths: comparing high resolution mass spectrometry and ion probe (SIMS) techniques.
  • Vis forfatter(e) (2007). Maternal influences on egg and larval characteristics of plaice (Pleuronectes platessa L.). Journal of Sea Research. 65-77.
  • Vis forfatter(e) (2007). High Latitude Climate Variability and Its Effect on Fishery Resources As Revealed by Fossil Otoliths.
  • Vis forfatter(e) (2007). Dynamics of shallow-water juvenile flatfish nursery grounds: application of the self-thinning rule. Marine Ecology Progress Series. 231-244.
  • Vis forfatter(e) (2007). Conservation aspects of natural populations and captive-bred stocks of turbot (Scophthalmus maximus) and Dover sole (Solea solea) using estimates of genetic diversity. ICES Journal of Marine Science. 1173-1181.
  • Vis forfatter(e) (2007). Birth-date selection in early life stages of plaice Pleuronectes platessa in the eastern Irish Sea (British Isles). Marine Ecology Progress Series. 255-269.
  • Vis forfatter(e) (2007). Bio-tags and their use against IUU in the Baltic.
  • Vis forfatter(e) (2006). Thermal marking of cod otolith (Gadus morhua) for improved traceability.
  • Vis forfatter(e) (2006). The origin of Fulton's condition factor - Setting the record straight. Fisheries. 236-238.
  • Vis forfatter(e) (2006). The effects of exposure of Atlantic cod spawners to alkylphenols and Produced water on the survival characteristics of their offspring.
  • Vis forfatter(e) (2006). The effects of alkylphenols and oil produced water on sperm quality of Atlantic cod (Gadus morhua).
  • Vis forfatter(e) (2006). Temperature-dependent development rates of cod (Gadus morhua L.) eggs. Journal of Fish Biology. 1060-1080.
  • Vis forfatter(e) (2006). Otolith growth and back-calculation of previous fish size based on tagged and Alizarin multi-marked Atlantic cod (Gadus morhua).
  • Vis forfatter(e) (2006). Otolith chemistry: an aid to stock separation of Helicolenus dactylopterus (bluemouth) and Merluccius merluccius (European hake) in the Northeast Atlantic and Mediterranean. ICES Journal of Marine Science. 504-513.
  • Vis forfatter(e) (2006). Mesolithic seasonal sea temperatures revealed from stable isotope analysis of cod otoliths.
  • Vis forfatter(e) (2006). Mesolithic seasonal sea temperatures revealed from stable isotope analysis of cod otoliths.
  • Vis forfatter(e) (2006). Importance of prey abundance and size spectra for growth and survival of larval cod.
  • Vis forfatter(e) (2006). Importance of prey abundance and size spectra for growth and survival in larval cod.
  • Vis forfatter(e) (2006). Gape morphology of cod (Gadus morhua L.), haddock (Melanogrammus aeglefinus L.) and whiting (Merlangius merlangus L.) through metamorphosis from larvae to juveniles in the western Irish Sea. Journal of Fish Biology. 1379-1395.
  • Vis forfatter(e) (2006). Elemental composition of otolith growth marks in three geographically separated populations of European hake (Merluccius merluccius). Marine Biology. 1399-1413.
  • Vis forfatter(e) (2006). Effects of Handling and Storage Methods on the Concentrations of Elements in Seep-water Fish Otoliths. Journal of Fish Biology. 891-904.
  • Vis forfatter(e) (2006). Assessing Body and Otolith Morphological Differences in Fish with Vaterite and Non-Vaterite Otoliths.
  • Vis forfatter(e) (2006). Analysis of fish otoliths by Laser Ablation ICP Mass Spectrometry as a tool for tracing migration of cod.
  • Vis forfatter(e) (2005). WESTHER: A multidisciplinary approach to the identification of herring (Clupea harengus L.) stock components west of the British Isles using biological tags and genetic markers. ICES CM 2005/K:01. 18pp. .
  • Vis forfatter(e) (2005). Pelagic Ecology: Special considerations for flatfishes.
  • Vis forfatter(e) (2005). Metamorfose - forvandling fra larve til yngel. 15 sider.
  • Vis forfatter(e) (2005). Intra- and inter-specific effects of temperature on the development rate of marine and estuarine fish embryos.
  • Vis forfatter(e) (2005). Aspects of the general biology of Sars’ eelpout, Lycenchelys sarsi (Collett, 1871) (Pisces, Zoarcidae), in Oslofjorden, Norway. Marine Biology Research. 33-38.
  • Vis forfatter(e) (2005). Age-related trends in otolith chemistry of Merluccius merluccius from the north-eastern Atlantic Ocean and the western Mediterranean Sea. Marine and Freshwater Research. 599-607.
  • Vis forfatter(e) (2005). Age and Growth. 25 sider.
  • Vis forfatter(e) (2005). A cooperative effort to exchange age reading experience and protocols between European fish institutes. Fisheries Research. 167-173.
  • Vis forfatter(e) (2004). Seasonal and interannual variation in abundance of Calanus finmarchicus (Gunnerus) and Calanus helgolandicus (Claus) in inshore waters (west coast of the Isle of Man) in the central Irish Sea. Journal of Plankton Research. 265-273.
  • Vis forfatter(e) (2004). Otolith micro-increment formation in herring Clupea harengus larvae in relation to growth rate. Marine Ecology Progress Series. 83-94.
  • Vis forfatter(e) (2004). ICES. Recruitment studies: Manual of precision and accurac of tools. ICES Techniques in Marine Environmental Science. 35 sider.
  • Vis forfatter(e) (2004). Analysis of the soluble matrix of vaterite otoliths of juvenile herring (Clupea harengus): do crystalline otoliths have less protein? Comparative Biochemistry and Physiology A. 301-308.
  • Vis forfatter(e) (2004). Abundances of Metridia lucens in the western Irish Sea. Journal of the Marine Biological Association of the United Kingdom. 617-618.
  • Vis forfatter(e) (2003). Temperature dependent development rates of plaice (Pleuronectes platessa L.) eggs from the Irish Sea. Journal of Plankton Research. 1319-1329.
  • Vis forfatter(e) (2003). Otolith microchemistry of Nezumia aequalis (Pisces: Macrouridae) from widely different habitats in the Atlantic and Mediterranean. Journal of the Marine Biological Association of the United Kingdom. 883-886.
  • Vis forfatter(e) (2003). Morphometry and composition of aragonite and vaterite otoliths of deformed laboratory reared juvenile herring from two populations. Journal of Fish Biology. 1383-1401.
  • Vis forfatter(e) (2003). Cloning, characterization, and developmental expression of a putative farnesoic acid O-methyl transferase in the female edible crab Cancer pagurus. The Biological Bulletin. 308-318.
  • Vis forfatter(e) (2002). Length of herring larvae in relation to age and hatching order. Journal of Fish Biology. 479-485.

Se fullstendig oversikt over publikasjoner i CRIStin.

See also in Google Scholar:


IMR - Mining effects on marine ecosystems, monitoring: "Gruveutslipp – effekter på marine økosystemer"

Erasmus+ - International Masters Programme "IMBRSea"

EU - Framework 7 – “ARAMACC” Annually-resolved archives of marine climate change – development of molluscan sclerochronology for marine environmental monitoring and climatology. Marie Curie ITN, associated partner

Past Projects

EU - Framework 7 – “FishPopTrace” - The structure of fish populations and traceability of fish and fish products 2008 - 2011

EU - Framework 7 – “CalMarO” - Calcification of Marine Organisms - A Marie Curie ITN (Initial Training Network) concerned with understanding biomineralization and the effects of ocean acidification on calcifying organisms 2008 – 2011

NFR - HAVKYST  - PRIBASE: Pollution Risk and Impact Analysis for the Barents Sea Ecosystem 2009-2011

EEA - Managing effects of global climate on estuarine biodiversity and productivity, network project PT0010, Norway-the Netherlands-Portugal 2008-2012

NFR - The occurrence of skipped spawning and its importance for population dynamics in Northeast Arctic gadoids - 2009 – 2012