• E-postAudrey.Geffen@uib.no
  • Telefon+47 55 58 44 35
  • Besøksadresse
    Thormøhlensgt. 53 A/B
  • Postadresse
    Postboks 7803
    5020 Bergen

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

  • 2020. Ontogenetic movements of cod in Arctic fjords and the Barents Sea as revealed by otolith microchemistry. Polar Biology. 409-421.
  • 2020. Long-term temporal stability of Northeast Arctic cod (Gadus morhua) otolith morphology. ICES Journal of Marine Science. 1043-1054.
  • 2020. Cophylogenetic analysis of the relationship between anemonefish Amphiprion (Perciformes: Pomacentridae) and their symbiotic host anemones (Anthozoa: Actiniaria). Marine Biology Research. 117-133.
  • 2020. Century-long cod otolith biochronology reveals individual growth plasticity in response to temperature. Scientific Reports. 1-13.
  • 2020. A century of fish growth in relation to climate change, population dynamics and exploitation. Global Change Biology. 5661-5678.
  • 2019. Otoliths as life history indicators.
  • 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.
  • 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.
  • 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.
  • 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.
  • 2018. Molluscan sclerochronology on the Faroe Shelf. Climatic and ecological conditions inferred from shell properties of the bivalve species Arctica islandica.
  • 2017. Large and fine scale population structure in European hake (Merluccius merluccius) in the Northeast Atlantic. ICES Journal of Marine Science. 1300-1310.
  • 2017. Growth, egg production and hatching success of Acartia tonsa cultured at high densities. Aquaculture. 569-578.
  • 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.
  • 2016. Fish otoliths as indicators in ecosystem based management: Results of the 5th International Otolith Symposium (IOS2014). Marine and Freshwater Research. i-iv.
  • 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.
  • 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.
  • 2015. Synergies between aquaculture and fisheries. 491-518. I:
    • 2015. Flatfishes, Biology and Exploitation, 2nd edition. Wiley-Blackwell.
  • 2015. Hvordan studere havets og klimaets historie? 28-34.
  • 2015. Flatfishes, Biology and Exploitation, 2nd edition. Wiley-Blackwell.
  • 2015. Age and Growth. 207-241. I:
    • 2015. Flatfishes, Biology and Exploitation, 2nd edition. Wiley-Blackwell.
  • 2014. The use of otoliths as DNA source in population genetics; population structure of European hake by the use of SNPs.
  • 2014. The proteome of Atlantic herring (Clupea harengus L.) larvae is resistant to elevated pCO2. Marine Pollution Bulletin. 154-160.
  • 2014. Post-settlement growth of hake from the Norwegian coast based on otolith microstructure analysis: Evidence for countergradient variation?
  • 2014. Outlier SNP markers reveal fine-scale genetic structuring across European hake populations (Merluccius merluccius). Molecular Ecology. 118-135.
  • 2014. Otoliths as life history indicators.
  • 2014. Organ damage in Atlantic herring larvae as a result of ocean acidification. Ecological Applications. 1131-1143.
  • 2014. Growth dynamics of European plaice Pleuronectes platessa L. in nursery areas: A review. 64-82.
  • 2014. Coping with connectivity between populations of Merluccius merluccius: An elusive topic. Journal of Marine Systems. 211-219.
  • 2013. The swimming kinematics of larval Atlantic cod, Gadus morhua L., are resilient to elevated seawater pCO2. Marine Biology.
  • 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.
  • 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.
  • 2013. Taxonomic and geographic influences on fish otolith microchemistry. Fish and Fisheries. 458-492.
  • 2013. Influence of the limit of detection on classification using otolith elemental signatures. Canadian Journal of Fisheries and Aquatic Sciences. 922-929.
  • 2013. Fantastically plastic: fish larvae equipped for a new world. S224-S267.
  • 2013. Effects of ocean acidification on the calcification of otoliths of larval Atlantic cod Gadus morhua. Marine Ecology Progress Series. 251-258.
  • 2013. Chemical analysis of otoliths: Cross validation between techniques and laboratories. Fisheries Research. 67-80.
  • 2013. A genomic island linked to ecotype divergence in Atlantic cod. Molecular Ecology. 2653-2667.
  • 2012. The effect of ablation pattern on LA-ICPMS analysis of otolith element composition in hake, Merluccius merluccius. Environmental Biology of Fishes. 509-520.
  • 2012. Severe tissue damage in Atlantic cod larvae under increasing ocean acidification. Nature Climate Change. 42-46.
  • 2012. Seasonal and ontogenic migrations of meagre (Argyrosomus regius) determined by otolith geochemical signatures. Fisheries Research. 154-165.
  • 2012. Otolith oxygen and carbon stable isotopes in wild and laboratory-reared plaice (Pleuronectes platessa). Environmental Biology of Fishes. 419-430.
  • 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.
  • 2012. Geographical variations in the chemical compositions of Veined Squid Loligo forbesi statoliths. Zoological Studies. 755-761.
  • 2012. Gene-associated markers provide tools for tackling illegal fishing and false eco-certification. Nature Communications.
  • 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.
  • 2012. Egg development rates for use in egg production methods (EPMs) and beyond. Fisheries Research. 48-62.
  • 2012. Atlantic cod Gadus morhua in the Mediterranean: a surprising immigrant. Marine Ecology Progress Series. 277-280.
  • 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.
  • 2011. Tracing fish and fish products from ocean to fork using advanced molecular technologies.
  • 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.
  • 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.
  • 2011. High-latitude climate variability and its effect on fisheries resources as revealed by fossil cod otoliths. ICES Journal of Marine Science. 1081-1089.
  • 2011. Evaluation of the frequency of skipped spawning in Norwegian spring-spawning herring. Journal of Sea Research. 327-332.
  • 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.
  • 2010. The role of prey concentration and size range in the growth and survival of larval cod. Marine Biology Research. 251-262.
  • 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.
  • 2010. Sperm motility in European hake, Merluccius merluccius, and characterization of its spermatozoa concentration and volume, spermatocrit, osmolality and pH. Aquaculture. 31-36.
  • 2010. Seasonality of human site occupation based on stable oxygen isotope ratios of cod otoliths. Journal of Archaeological Science. 78-83.
  • 2010. Multi-disciplinary fingerprints reveal the harvest location of cod Gadus morhua in the northeast Atlantic. Marine Ecology Progress Series. 197-206.
  • 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.
  • 2010. Lessons learned from stock collapse and recovery of North Sea herring: a review. ICES Journal of Marine Science. 1875-1886.
  • 2010. Does DNA extraction affect the physical and chemical composition of historical cod (Gadus morhua) otoliths? ICES Journal of Marine Science. 1251-1259.
  • 2010. Development, validation and field application of an RNA-based growth index in juvenile plaice Pleuronectes platessa. Journal of Fish Biology. 2181-2209.
  • 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.
  • 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.
  • 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.
  • 2009. Advances in herring biology: from simple to complex, coping with plasticity and adaptability. ICES Journal of Marine Science. 1688-1695.
  • 2008. Restricted fish feeding reduces cod otolith opacity. Journal of Applied Ichthyology. 138-143.
  • 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.
  • 2008. Estimating reproductive potential of male Barents Sea cod.
  • 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.
  • 2008. Climate changes and their effects, as observed using hard tissues analyses.
  • 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.
  • 2007. The effect of Prestige oil ingestion on the growth and chemical composition of turbot otoliths. Marine Pollution Bulletin. 1732-1741 .
  • 2007. The cost of metamorphosis in flatfishes. Journal of Sea Research. 35-45.
  • 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.
  • 2007. Produced water from the offshore oil-industry: Does it have any long-term effect on the reproductive perfomance of Atlantic cod (Gadus morhua)?
  • 2007. Oxygen isotope variation in European hake otoliths: comparing high resolution mass spectrometry and ion probe (SIMS) techniques.
  • 2007. Maternal influences on egg and larval characteristics of plaice (Pleuronectes platessa L.). Journal of Sea Research. 65-77.
  • 2007. High Latitude Climate Variability and Its Effect on Fishery Resources As Revealed by Fossil Otoliths.
  • 2007. Dynamics of shallow-water juvenile flatfish nursery grounds: application of the self-thinning rule. Marine Ecology Progress Series. 231-244.
  • 2007. Conservation aspects of natural populations and captive-bred stocks of turbot (Scophthalmus maximus) and Dover sole (Solea solea) using estimates of genetic diversity. 1173-1181.
  • 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.
  • 2007. Bio-tags and their use against IUU in the Baltic.
  • 2006. Thermal marking of cod otolith (Gadus morhua) for improved traceability.
  • 2006. The origin of Fulton's condition factor - Setting the record straight. Fisheries. 236-238.
  • 2006. The effects of exposure of Atlantic cod spawners to alkylphenols and Produced water on the survival characteristics of their offspring.
  • 2006. The effects of alkylphenols and oil produced water on sperm quality of Atlantic cod (Gadus morhua).
  • 2006. Temperature-dependent development rates of cod (Gadus morhua L.) eggs. Journal of Fish Biology. 1060-1080.
  • 2006. Otolith growth and back-calculation of previous fish size based on tagged and Alizarin multi-marked Atlantic cod (Gadus morhua).
  • 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.
  • 2006. Mesolithic seasonal sea temperatures revealed from stable isotope analysis of cod otoliths.
  • 2006. Mesolithic seasonal sea temperatures revealed from stable isotope analysis of cod otoliths.
  • 2006. Importance of prey abundance and size spectra for growth and survival of larval cod.
  • 2006. Importance of prey abundance and size spectra for growth and survival in larval cod.
  • 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.
  • 2006. Elemental composition of otolith growth marks in three geographically separated populations of European hake (Merluccius merluccius). Marine Biology. 1399-1413.
  • 2006. Effects of Handling and Storage Methods on the Concentrations of Elements in Seep-water Fish Otoliths. Journal of Fish Biology. 891-904.
  • 2006. Assessing Body and Otolith Morphological Differences in Fish with Vaterite and Non-Vaterite Otoliths.
  • 2006. Analysis of fish otoliths by Laser Ablation ICP Mass Spectrometry as a tool for tracing migration of cod.
  • 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. .
  • 2005. Pelagic Ecology: Special considerations for flatfishes.
  • 2005. Metamorfose - forvandling fra larve til yngel. 15 sider.
  • 2005. Intra- and inter-specific effects of temperature on the development rate of marine and estuarine fish embryos.
  • 2005. Aspects of the general biology of Sars’ eelpout, Lycenchelys sarsi (Collett, 1871) (Pisces, Zoarcidae), in Oslofjorden, Norway. Marine Biology Research. 33-38.
  • 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.
  • 2005. Age and Growth. 25 sider.
  • 2005. A cooperative effort to exchange age reading experience and protocols between European fish institutes. Fisheries Research. 167-173.
  • 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.
  • 2004. Otolith micro-increment formation in herring Clupea harengus larvae in relation to growth rate. Marine Ecology Progress Series. 83-94.
  • 2004. ICES. Recruitment studies: Manual of precision and accurac of tools. ICES Techniques in Marine Environmental Science. 35 sider.
  • 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.
  • 2004. Abundances of Metridia lucens in the western Irish Sea. Journal of the Marine Biological Association of the United Kingdom. 617-618.
  • 2003. Temperature dependent development rates of plaice (Pleuronectes platessa L.) eggs from the Irish Sea. Journal of Plankton Research. 1319-1329.
  • 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.
  • 2003. Morphometry and composition of aragonite and vaterite otoliths of deformed laboratory reared juvenile herring from two populations. Journal of Fish Biology. 1383-1401.
  • 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.
  • 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