I study how individuals drive the dynamics of populations and communities in the marine environment; including mechanistic models of processes, state-variable optimality theory and marine trait-based ecosystem models. I work on behaviour, adaptations, predator-prey interactions in fish, zooplankton and microbes – and how this structures marine ecosystems.

During 2012-2015 I was appointed Head of Education and Deputy Head of Department at Department of Biological Sciences (BIO), University of Bergen. During this period, BIO was granted status as a Centre of Excellence in Education - and since 2014 the Centre of Excellence in Biology Education (bioCEED). Related to this I have held > 40 invited talks on activities in the centre in a range of local and national fora (see overview in my Teaching Portfolio). I am rewarded status as an Excellent Teaching Practitioner from UiB. 

Academic lecture

• Opdal, Anders Martin Frugård; Lindemann, Christian; Fiksen, Øyvind et al. (2024). Land use change and coastal water darkening drive synchronous dynamics in phytoplankton and fish phenology on centennial time scales. (external link)
• Enberg, Katja; Fiksen, Øyvind (2024). Naturkrise mot klimakrise? Avveininger innen bærekraft. (external link)
• Langbehn, Tom; Ljungström, Anna Jeja Gabriella; Fiksen, Øyvind et al. (2023). Insights from mechanistic models: understanding causes and consequences of mesopelagic diel vertical migration across latitudes. (external link)
• Langbehn, Tom; Ljungström, Anna Jeja Gabriella; Fiksen, Øyvind et al. (2023). Model evidence for photic barriers to poleward range shifts. (external link)
• Opdal, Anders Martin Frugård; Lindemann, Christian; Fiksen, Øyvind et al. (2020). Could long term shift in cod phenology be linked to terrestrial greening and coastal browning. (external link)
• Lindemann, Christian; Jørgensen, Christian; Fiksen, Øyvind et al. (2020). Could long term shift in cod phenology be linked to terrestrial greening and coastal browning. (external link)
• Aarflot, Johanna Myrseth ; Aksnes, Dag Lorents; Dalpadado, Padmini et al. (2020). Bathymetry Structures Predator-prey Dynamics between Zooplankton and Fish in Marine Pelagic Ecosystems. (external link)
• Fiksen, Øyvind; Reglero, Patricia (2020). The enigmatic spawning strategy of Bluefin Tuna. (external link)
• Aarflot, Johanna Myrseth; Aksnes, Dag Lorents; Dalpadado, Padmini et al. (2019). Bathymetry structures predator-prey dynamics between zooplankton and fish in marine pelagic ecosystems. (external link)
• Langbehn, Tom; Aksnes, Dag Lorents; Kaartvedt, Stein et al. (2019). Poleward distribution of mesopelagic fish is constrained by seasonality in light. (external link)
• Langbehn, Tom; Aksnes, Dag Lorents; Kaartvedt, Stein et al. (2019). Poleward distribution of mesopelagic fish is constrained by seasonality in light. (external link)
• Langbehn, Tom; Jørgensen, Christian; Fiksen, Øyvind et al. (2019). From light, to vision, to species distribution. (external link)
• Langbehn, Tom; Aksnes, Dag Lorents; Kaartvedt, Stein et al. (2019). Light and the ecology of mesopelagic fish at high latitudes. (external link)
• Fiksen, Øyvind; Eliassen, Sigrunn; Varpe, Øystein (2018). Building the Research Teaching Nexus in Ecology: Three Courses to Get There. (external link)
• Esterhazy, Rachelle; Fiksen, Øyvind (2018). Portfolio assessment in biology: following a three-year design cycle. (external link)
• Vandvik, Vigdis; Førland, Oddfrid T. Kårstad; Fiksen, Øyvind et al. (2018). KD hos bioCEED. (external link)
• Langbehn, Tom; Fiksen, Øyvind; Jørgensen, Christian (2018). The deadly midnight sun: Visual predators and northern range limits in mesopelagic fish. (external link)
• Skaret, Georg; Fall, Johanna Jennifer Elisabeth; Fauchald, Per et al. (2017). In situ study of the functional response of cod to capelin using broadband acoustics and trawl sampling. (external link)
• Andersson, Roy; Eidesen, Pernille Bronken; Fiksen, Øyvind et al. (2017). Korleis få professorar med på ein kollegial SoTL-kultur?. (external link)
• Kvile, Kristina Øie; Dalpadado, Padmini; Fiksen, Øyvind et al. (2016). Climate responses of Calanus finmarchicus in a high latitude system. (external link)
• Kvile, Kristina Øie; Fiksen, Øyvind; Frugård Opdal, Anders (2014). Linking models and data: Can we find the spawning areas of Calanus finmarchicus?. (external link)
• Opdal, Anders Frugård; Fouzai, Nadia; Jørgensen, Christian et al. (2013). Effects of temperature and food availability on larval cod survival: a model for behaviour in vertical gradients. (external link)
• Opdal, Anders Frugård; Vikebø, Frode Bendiksen; Fiksen, Øyvind (2012). The value of an egg. Southern spawning dampens effect of climate on recruitment in Northeast Arctic cod. (external link)
• Opdal, Anders Frugård; Vikebø, Frode Bendiksen; Fiksen, Øyvind (2011). The value of an egg – spawning migrations in the Northeast Arctic cod. (external link)
• Pecseli, Hans; Trulsen, Jan Karsten; Fiksen, Øyvind (2009). Predators in turbulent waters: an analytical model and a numerical test. (external link)
• Fiksen, Øyvind (2006). Modelling habitat selection in zooplankton. (external link)
• Fiksen, Øyvind; Jørgensen, Christian (2006). Fish deep in debt. (external link)
• Fiksen, Øyvind (2006). Behavioural ecology in fisheries oceanography. (external link)
• Sattar, Shahaama Abdul; Jørgensen, Christian; Fiksen, Øyvind (2006). Effects of fisheries on energy- and sex-allocation in slow-growing hermaphrodites such as groupers. (external link)
• Sattar, Shahaama Abdul; Jørgensen, Christian; Fiksen, Øyvind (2006). Effects of fisheries on energy and sex allocation in slow-growing hermaphrodites such as groupers. (external link)
• Jørgensen, Christian; Fiksen, Øyvind; Ernande, Bruno (2006). Effects of gear selectivity on harvest-induced life history evolution in Northeast Arctic cod. (external link)
• Jørgensen, Christian; Fiksen, Øyvind; Ernande, Bruno (2006). Effects of different management regimes on harvest-induced life history evolution in Northeast Arctic cod. (external link)
• Fiksen, Øyvind (2005). Larval fish visual feeding and turbulence. (external link)
• Fiksen, Øyvind (2005). Modelling behaviour and life history traits in zooplankton and fish. (external link)
• Jørgensen, Christian; Ernande, Bruno; Fiksen, Øyvind (2005). Fisheries-induced life history evolution reduces per-biomass egg production of the Northeast Arctic cod stock. (external link)
• Jørgensen, Christian; Ernande, Bruno; Fiksen, Øyvind (2005). Modelling fisheries-induced life history evolution in the Northeast Arctic cod. (external link)
• Fiksen, Øyvind (2005). Is larval fish food limited?. (external link)
• Fiksen, Øyvind (2005). The role of vertical behaviour in larval fish drift and growth. (external link)
• Jørgensen, Christian; Fiksen, Øyvind (2004). Effects of a variable food intake on population dynamics and reproduction in the Northeast Arctic cod. (external link)
• Jørgensen, Christian; Ernande, Bruno; Fiksen, Øyvind et al. (2004). Skipped spawning is common for the Northeast Arctic cod in a life-history energy allocation model. (external link)
• Jørgensen, Christian; Ernande, Bruno; Fiksen, Øyvind et al. (2003). Kjønnsmoden torsk gyter ikke hvert år. (external link)
• Fiksen, Øyvind; Eliassen, Sigrunn; Titelman, Josefin (2003). Size-dependent distribution patterns in the pelagic - a top-down perspective. (external link)
• Housholder, Dorothy J.; Heino, Mikko; Fiksen, Øyvind (2003). Evaluation of harvest control rules: simple one-parameter vs. complex multi-parameter strategies. (external link)
• Arild, Folkvord; Fiksen, Øyvind; Otterlei, Erling (2002). Size and temperature dependent growth in cod larvae. (external link)
• Fiksen, Øyvind; MacKenzie, Brian (2002). Process-based models of feeding and prey selection in larval fish. (external link)
• Fiksen, Øyvind (2002). Modelling the influence of light and turbidity on behaviour and population dynamics. (external link)
• Arild, Folkvord; Otterlei, Erling; Fiksen, Øyvind (2001). Laboratory and field estimates of larval growth of cod: how do they compare?. (external link)
• Fiksen, Øyvind; MacKenzie, Brian (2001). Optimal state-dependent allocation to growth or reproduction in cod. (external link)
• Heath, Mike; Carlotti, Francois; de Young, Brad et al. (2001). Secondary production in the sea and responses to climate change. (external link)
• Fiksen, Øyvind; Otterlei, Erling; Arild, Folkvord (2000). Modelling growth processes in cod larvae: assesing the relative importance of food and temperature. (external link)

Academic article

• Opdal, Anders Martin Frugård; Lindemann, Christian; Andersen, Tom et al. (2024). Land use change and coastal water darkening drive synchronous dynamics in phytoplankton and fish phenology on centennial timescales. (external link)
• Ottmann, Daniel; Langbehn, Tom; Reglero, Patricia et al. (2023). Model of mesopelagic fish predation on eggs and larvae shows benefits of tuna spawning under full moon. (external link)
• Shropshire, Taylor A.; Morey, Steven L.; Chassignet, Eric P. et al. (2022). Trade-offs between risks of predation and starvation in larvae make the shelf break an optimal spawning location for Atlantic bluefin tuna. (external link)
• Fiksen, Øyvind; Reglero, Patricia (2021). Atlantic bluefin tuna spawn early to avoid metabolic meltdown in larvae. (external link)
• Fall, Johanna Jennifer Elisabeth; Johannesen, Edda; Englund, Göran et al. (2021). Predator–prey overlap in three dimensions: cod benefit from capelin coming near the seafloor. (external link)
• Langbehn, Tom; Aksnes, Dag Lorents; Kaartvedt, Stein et al. (2021). Poleward distribution of mesopelagic fishes is constrained by seasonality in light. (external link)
• Ottmann, Daniel; Fiksen, Øyvind; Martín, Melissa et al. (2021). Spawning site distribution of a bluefin tuna reduces jellyfish predation on early life stages. (external link)
• Ottmann, Daniel; Álvarez-Berastegui, Diego; Prieto, Laura et al. (2021). Abundance of Pelagia noctiluca early life stages in the western Mediterranean Sea scales with surface chlorophyll. (external link)
• Skaret, Georg; Johansen, Geir Odd; Johnsen, Espen et al. (2020). Diel vertical movements determine spatial interactions between cod, pelagic fish and krill on an Arctic shelf bank. (external link)
• Aarflot, Johanna Myrseth ; Dalpadado, Padmini; Fiksen, Øyvind (2020). Foraging success in planktivorous fish increases with topographic blockage of prey distributions. (external link)
• Takashina, Nao; Fiksen, Øyvind (2020). Optimal reproductive phenology under size-dependent cannibalism. (external link)
• Ljungström, Anna Jeja Gabriella; Claireaux, Marion; Fiksen, Øyvind et al. (2020). Body size adaptions under climate change: Zooplankton community more important than temperature or food abundance in model of a zooplanktivorous fish. (external link)
• Esterhazy, Rachelle; Fiksen, Øyvind (2019). Evolution of a portfolio-based design in ecology: a three-year design cycle. (external link)
• Fall, Johanna Jennifer Elisabeth; Fiksen, Øyvind (2019). No room for dessert: A mechanistic model of prey selection in gut-limited predatory fish. (external link)
• Langbehn, Tom; Aksnes, Dag Lorents; Kaartvedt, Stein et al. (2019). Light comfort zone in a mesopelagic fish emerges from adaptive behaviour along a latitudinal gradient. (external link)
• Fouzai, Nadia; Opdal, Anders Frugård; Jørgensen, Christian et al. (2019). Dying from the lesser of three evils: facilitation and non-consumptive effects emerge in a model with multiple predators. (external link)
• Reglero, P.; Ortega, A; Balbin, R. et al. (2018). Atlantic bluefin tuna spawn at suboptimal temperatures for their offspring. (external link)
• Aarflot, Johanna Myrseth; Aksnes, Dag Lorents; Opdal, Anders Frugård et al. (2018). Caught in broad daylight: Topographic constraints of zooplankton depth distributions. (external link)
• Blanco, Edurne; Reglero, Patricia; Ortega, Aurelio et al. (2017). The effects of light, darkness and intermittent feeding on the growth and survival of reared Atlantic bonito and Atlantic bluefin tuna larvae. (external link)
• Kvile, Kristina Øie; Fiksen, Øyvind; Prokopchuk, Irina et al. (2017). Coupling survey data with drift model results suggests that local spawning is important for Calanus finmarchicus production in the Barents Sea. (external link)
• Lindemann, Christian; Fiksen, Øyvind; Andersen, Ken Haste et al. (2016). Scaling laws in phytoplankton nutrient uptake affinity. (external link)
• Fiksen, Øyvind; Opdal, Anders Frugård (2015). Optimality and rule-based models for larval fish behavior. (external link)
• Sundelöf, Andreas; Grimm, Volker; Ulmestrand, Mats et al. (2015). Modelling harvesting strategies for the lobster fishery in northern Europe: the importance of protecting egg-bearing females. (external link)
• Sainmont, Julie; Andersen, Ken Haste; Thygesen, Uffe Høgsbro et al. (2015). An effective algorithm for approximating adaptive behavior in seasonal environments. (external link)
• Fouzai, Nadia; Opdal, Anders Frugård; Jørgensen, Christian et al. (2015). Effects of temperature and food availability on larval cod survival: A model for behaviour in vertical gradients. (external link)
• Van Deurs, Mikael; Jørgensen, Christian; Fiksen, Øyvind (2015). Effects of copepod size on fish growth: A model based on data for North Sea sandeel. (external link)
• Jørgensen, Christian; Opdal, Anders Frugård; Fiksen, Øyvind (2014). Can behavioural ecology unite hypotheses for fish recruitment?. (external link)
• Johnsen, Ingrid Askeland; Fiksen, Øyvind; Sandvik, Anne Dagrun et al. (2014). Vertical salmon lice behaviour as a response to environmental conditions and its influence on regional dispersion in a fjord system. (external link)
• Pecseli, Hans; Trulsen, Jan Karsten; Fiksen, Øyvind (2014). Predator-prey encounter and capture rates in turbulent environments. (external link)
• Reglero, Patricia; Ortega, Aurelio; Blanco, Edurne et al. (2014). Size-related differences in growth and survival in piscivorous fish larvae fed different prey types. (external link)
• Giske, Jarl; Eliassen, Sigrunn; Fiksen, Øyvind et al. (2014). The emotion system promotes diversity and evolvability. (external link)
• Andersen, Ken Haste; Aksnes, Dag Lorents; Berge, Terje et al. (2014). Modelling emergent trophic strategies in plankton. (external link)
• Vollset, Knut Wiik; Catalan, IA; Fiksen, Øyvind et al. (2013). Effect of food deprivation on distribution of larval and early juvenile cod in experimental vertical temperature and light gradients. (external link)
• Urtizberea, Agurtzane; Fiksen, Øyvind (2013). Effects of prey size structure and turbulence on feeding and growth of anchovy larvae. (external link)
• Giske, Jarl; Eliassen, Sigrunn; Fiksen, Øyvind et al. (2013). Effects of the emotion system on adaptive behavior. (external link)
• Visser, André W.; Fiksen, Øyvind (2013). Optimal foraging in marine ecosystem models: selectivity, profitability and switching. (external link)
• Fiksen, Øyvind; Follows, Michael J.; Aksnes, Dag Lorents (2013). Trait-based models of nutrient uptake in microbes extend the Michaelis-Menten framework. (external link)
• Castellani, Marco; Rosland, Rune; Urtizberea, Agurtzane et al. (2013). A mass-balanced pelagic ecosystem model with size-structured behaviourally adaptive zooplankton and fish. (external link)
• Opdal, Anders Frugård; Vikebø, Frode Bendiksen; Fiksen, Øyvind (2011). Parental migration, climate and thermal exposure of larvae: spawning in southern regions gives Northeast Arctic cod a warm start. (external link)
• Myrseth, Johanna; Enberg, Katja Susanna; Heino, Mikko Petteri et al. (2011). Do accurate stock estimates increase harvest and reduce variability in fisheries yields?. (external link)
• Reglero, P.; Urtizberea, Agurtzane; Perez-Torres, A et al. (2011). Cannibalism among size classes of larvae may be a substantial mortality component in tuna. (external link)
• Fiksen, Øyvind; Jørgensen, Christian (2011). Model of optimal behaviour in fish larvae predicts that food availability determines survival, but not growth. (external link)
• Jørgensen, Christian; Fiksen, Øyvind (2010). Modelling fishing-induced adaptations and consequences for natural mortality. (external link)
• Varpe, Øystein; Fiksen, Øyvind (2010). Seasonal plankton-fish interactions: light regime, prey phenology, and herring foraging. (external link)
• Folkvord, Arild; Fiksen, Øyvind; Høie, Hans et al. (2009). What can size distributions within cohorts tell us about ecological processes in fish larvae?. (external link)
• Kristiansen, Trond; Jørgensen, Christian; Lough, R. Gregory et al. (2009). Modeling rule-based behavior: habitat selection and the growth-survival trade-off in larval cod. (external link)
• Jørgensen, Christian; Ernande, Bruno; Fiksen, Øyvind (2009). Size-selective fishing gear and life history evolution in the Northeast Arctic cod. (external link)
• Aksnes, Dag Lorents; Dupont, Nicolas; Staby, Arved et al. (2009). Coastal water darkening and implications for mesopelagic regime shifts in Norwegian fjords. (external link)
• Varpe, Øystein; Jørgensen, C.; Tarling, GA et al. (2009). The adaptive value of energy storage and capital breeding in seasonal environments. (external link)
• Kristiansen, Trond; Vikebø, Frode Bendiksen; Sundby, Svein et al. (2009). Modeling growth of larval cod (Gadus morhua) in large-scale seasonal and latitudinal environmental gradients. (external link)
• Vollset, Knut Wiik; Fiksen, Øyvind; Folkvord, Arild (2009). Vertical distribution of larval cod (Gadus morhua) in experimental temperature gradients. (external link)
• Vollset, Knut Wiik; Seljeset, Oddbjørn; Fiksen, Øyvind et al. (2009). A common garden experiment of larval Northeast Arctic and Norwegian coastal cod cohorts in replicated mesocosms. (external link)
• Urtizberea, Agurtzane; Fiksen, Øyvind; Folkvord, Arild et al. (2008). Modelling growth of larval anchovies including diel feeding patterns, temperature and body size. (external link)
• Jørgensen, Christian; Dunlop, Erin; Opdal, Anders Frugård et al. (2008). The evolution of spawning migrations: State dependence and fishing-induced changes. (external link)
• Sattar, Shahaama Abdul; Jørgensen, Christian; Fiksen, Øyvind (2008). Fisheries-induced evolution of energy and sex allocation. (external link)
• Opdal, Anders Frugård; Vikebø, Frode Bendiksen; Fiksen, Øyvind (2008). Relationships between spawning ground identity, latitude and early life thermal exposure in Northeast Arctic cod. (external link)
• Opdal, Anders Frugård; Godø, Olav Rune; Bergstad, Odd Aksel et al. (2008). Distribution, identity, and possible processes sustaining meso- and bathypelagic scattering layers on the northern Mid-Atlantic Ridge. (external link)
• Titelman, J; Varpe, Øystein; Eliassen, S et al. (2007). Copepod mating: chance or choice?. (external link)
• Fiksen, Øyvind; Jørgensen, Christian; Kristiansen, Trond et al. (2007). Linking behavioural ecology and oceanography: larval behaviour determines growth, mortality and dispersal. (external link)
• Vikebø, Frode Bendiksen; Jørgensen, Christian; Kristiansen, Trond et al. (2007). Drift, growth and survival of larval Northeast Arctic cod with simple rules of behaviour. (external link)
• Kristiansen, Trond; Fiksen, Øyvind; Folkvord, Arild (2007). Modelling feeding, growth, and habitat selection in larval Atlantic cod (Gadus morhua): observations and model predictions in a macrocosm environment. (external link)
• Irigoien, Xabier; Fiksen, Øyvind; Cotano, Unai et al. (2007). Could Biscay Bay Anchovy recruit through a spatial loophole?. (external link)
• Varpe, Øystein; Jørgensen, Christian; Tarling, Geraint A. et al. (2007). Early is better: seasonal egg fitness and timing of reproduction in a zooplankton life-history model. (external link)
• Tian, Tian; Fiksen, Øyvind; Folkvord, Arild (2007). Estimating larval fish growth under size-dependent mortality: a numerical analysis of bias. (external link)
• Jørgensen, Christian; Ernande, Bruno; Fiksen, Øyvind et al. (2006). The logic of skipped spawning in fish. (external link)
• Jørgensen, Christian; Fiksen, Øyvind (2006). State-dependent energy allocation in cod (Gadus morhua). (external link)
• Kaartvedt, Stein; Røstad, Anders; Fiksen, Øyvind et al. (2005). Piscivorous fish patrol krill swarms. (external link)
• Fiksen, Øyvind; Eliassen, Sigrunn; Titelman, Josefin (2005). Multiple predators in the pelagic: modelling behavioural cascades. (external link)
• Vikebø, Frode Bendiksen; Sundby, Svein; Ådlandsvik, Bjørn et al. (2005). The combined effect of transport and temperature on distribution and growth of larvae and pelagic juveniles of Arcto-Norwegian cod. (external link)
• Mazaris, Antonios D.; Fiksen, Øyvind; Matsinos, Yiannis G. (2005). Using individual-based model for assessment of sea turtle population viability. (external link)
• Varpe, Øystein; Fiksen, Øyvind; Slotte, Aril (2005). Meta-ecosystems and biological energy transport from ocean to coast: the ecological importance of herring migration. (external link)
• Kaartvedt, Stein; Røstad, Anders; Fiksen, Øyvind et al. (2005). Piscivorous fish patrol krill swarms. (external link)
• Titelman, Josefin; Fiksen, Øyvind (2004). Ontogenetic vertical distribution patterns in small copepods: field observations and model predictions. (external link)
• Grønstøl, Gaute Bø; Byrkjedal, Ingvar; Fiksen, Øyvind (2003). Predicting polygonous settlement while incorporating varying female competitive strength. (external link)
• Grønstøl, Gaute; Byrkjedal, Ingvar; Fiksen, Øyvind (2003). Predicting polygynous settlement while incorporating varying female competitive strength. (external link)
• Fiksen, Øyvind; Aksnes, Dag Lorents; Flyum, Magni H. et al. (2002). The influence of turbidity on growth and survival of fish larvae: a numerical analysis. (external link)
• Fiksen, Øyvind; Slotte, Aril (2002). Stock-environment recruitment models for Norwegian spring spawning herring (Clupea harengus). (external link)
• Fiksen, Øyvind; MacKenzie, Brian R. (2002). Process-based models of feeding and prey selection in larval fish. (external link)
• Slotte, Aril; Fiksen, Øyvind (2000). State-dependent spawning migration in Norwegian spring-spawning herring. (external link)
• Fiksen, Øyvind (2000). The adaptive timing of diapause - a search for evolutionarily robust strategies in Calanus finmarchicus. (external link)
• Kirby, David S.; Fiksen, Øyvind; Hart, Paul J.B. (2000). A dynamic optimisation model for the behaviour of tunas at ocean fronts. (external link)
• Slotte, A.; Fiksen, Øyvind (2000). State-dependent spawning migration in Norwegian spring-spawning herring. (external link)
• Fiksen, Øyvind; Folkvord, Arild (1999). Modelling growth and ingestion processes in herring Clupea harengus larvae. (external link)
• Fiksen, Øyvind; Utne, Anne Christine W.; Aksnes, Dag Lorents et al. (1998). Modelling the influence of light, turbulence and ontogeny on ingestion rates in larval cod and herring. (external link)
• Giske, Jarl; Huse, Geir; Fiksen, Øyvind (1998). Modelling spatial dynamics of fish. (external link)
• Fiksen, Øyvind; Carlotti, François (1998). A model of optimal life history and diel vertical migration in Calanus finmarchicus. (external link)
• Giske, Jarl; Rosland, Rune; Berntsen, Jarle et al. (1997). Ideal free distribution of copepods under predation risk. (external link)
• Giske, Jarl; Rosland, Rune; Berntsen, Jarle et al. (1997). Ideal free distribution of copepods under predation risk. (external link)
• Fiksen, Øyvind (1997). Allocation patterns and diel vertical migration: Modeling the optimal Daphnia. (external link)
• Fiksen, Øyvind; Giske, J. (1995). Vertical distribution and population dynamics of copepods by dynamic optimization. (external link)
• Fiksen, Øyvind; Giske, J.; Slagstad, D. (1995). A Spatially Explicit Fitness-based Model of Capelin Migrations the Barents Sea. (external link)
• Giske, J.; Aksnes, Dag Lorents; Fiksen, Øyvind (1994). Visual predators, environmental variables and zooplankton mortality risk. (external link)

Lecture

• Opdal, Anders Martin Frugård; Lindemann, Christian; Fiksen, Øyvind et al. (2023). Land use change and coastal water darkening drive synchronous dynamics in phytoplankton and fish phenology on centennial time scales. (external link)
• Fiksen, Øyvind; Soule, Jonathan; Holtermann, Kristin (2023). Research-integrated learning and assessment. (external link)
• Aarflot, Johanna Myrseth; Fiksen, Øyvind (2021). How the bottom kills plankton. (external link)
• Gujord, Heming H.; Kvernenes, Monika; Fiksen, Øyvind et al. (2019). Meritteringsordning for fremragende undervisere - hva har vi erfart og hvor er vi. Paneldebatt.. (external link)
• Bråten, Helene; Samdal, Oddrun; Mikalsen, Håkon Randgaard et al. (2018). How Norway went SoTL. (external link)
• Fiksen, Øyvind; Førland, Oddfrid T. Kårstad; Vandvik, Vigdis (2015). Undervisingsleiing – mellom to kulturar. (external link)
• Vandvik, Vigdis; Fiksen, Øyvind (2015). Kvalitet i høyere utdanning – Hva er det? Hvordan kan vi fremme det?. (external link)

Poster

• Opdal, Anders Martin Frugård; Lindemann, Christian; Fiksen, Øyvind et al. (2023). Tracking freshwater browning and coastal water darkening from boreal forests to the Arctic Ocean. (external link)
• Fiksen, Øyvind; Reglero, Patricia (2020). The Enigmatic Spawning Strategy of Bluefin Tuna. (external link)
• Lindemann, Christian; Fiksen, Øyvind; Menden-Deuer, Susanne et al. (2020). Training and Communication Across Disciplines and Methodological Approaches in Marine Science. (external link)
• Langbehn, Tom; Aksnes, Dag Lorents; Kaartvedt, Stein et al. (2019). Poleward distribution of mesopelagic fish is constrained by seasonality in light. (external link)
• Fall, Johanna Jennifer Elisabeth; Fiksen, Øyvind (2017). A role for foraging theory in fisheries management? A mechanistic approach to prey selection in Barents Sea cod. (external link)
• Aarflot, Johanna Myrseth; Fiksen, Øyvind (2017). Do predation from fish structure zooplankton communities in the Barents Sea?. (external link)
• Langbehn, Tom; Ljungström, Anna Jeja Gabriella; Fiksen, Øyvind et al. (2017). Introducing a new hypothesis: Southward shifts of species distributions under climate change?. (external link)
• Pecseli, Hans; Trulsen, Jan Karsten; Fiksen, Øyvind (2013). Predator-prey encounter and capture rates in turbulent environments. (external link)
• Grønstøl, Gaute Bø; Byrkjedal, Ingvar; Fiksen, Øyvind (2000). Predicting polygynous settlement while incorporating varying female despotism. (external link)

Interview

• Steinberg, Madeline; Fiksen, Øyvind; Straube, Nicolas et al. (2023). The Hidden Sea Creatures in Norway's Fjords - On Mission. (external link)
• Tandberg, Anne Helene S.; Hagen, Margareth; Fiksen, Øyvind et al. (2023). Unik forskningsmulighet: Anne Helene skal ned i amerikansk ubåt. (external link)
• Jørgensen, Christian; Vandvik, Vigdis; Fiksen, Øyvind et al. (2016). På nett med studentane. (external link)

Masters thesis

• Utne Berg, Kristin; Oppedal, Frode; Forland, Tonje Nesse et al. (2022). Welfare indicators of Atlantic Salmon (Salmo salar) observed with broadband acoustic in a submerged cage. (external link)
• Frugård Opdal, Anders; Fiksen, Øyvind (2006). Distribution of scattering layers across the northern Mid-Atlantic Ridge. (external link)
• Vollset, Knut Wiik; Folkvord, Arild; Fiksen, Øyvind (2006). A comparative study of larval cod cohorts exposed to different feeding conditions. (external link)
• Tian, Tian; Fiksen, Øyvind; Folkvord, Arild (2006). Estimating larval fish growth under size-dependent mortality: a numerical analysis of bias. (external link)
• Sattar, Shahaama Abdul; Fiksen, Øyvind; Jørgensen, Christian (2006). Effects of fisheries on energy- and sex-allocation in groupers. (external link)
• Housholder, Dorothy J; Heino, Mikko; Fiksen, Øyvind (2004). Evaluation of harvest control rules : simple one-parameter versus complex multi-parameter strategies. 37 bl. (external link)

Doctoral dissertation

• Aarflot, Johanna Myrseth; Skjoldal, Hein Rune; Dalpadado, Padmini et al. (2019). Three-dimensional zooplankton distributions seen through the lens of fish in the Barents Sea. (external link)
• Fall, Johanna Jennifer Elisabeth; Johannesen, Edda; Fiksen, Øyvind et al. (2019). Drivers of variation in the predator-prey interaction between cod and capelin in the Barents Sea. (external link)
• Langbehn, Tom; Jørgensen, Christian; Fiksen, Øyvind et al. (2019). Light and visual foraging in the pelagic: Opportunities and constraints along gradients of seasonality. (external link)
• Urtizbera Ijurko, Agurtzane; Fiksen, Øyvind (2009). From environment to survival : foraging and bioenergetic models of anchovy and tuna larvae. (external link)
• Varpe, Øystein; Fiksen, Øyvind (2007). Life history adaptations to seasonality. (external link)
• Jørgensen, Christian; Fiksen, Øyvind (2005). Fisheries-induced life history evolution in cod. (external link)
• Fiksen, Øyvind (1997). Functional models of life strategies in zooplankton and fish. (external link)

Report

• Skaret, Georg; Johannesen, Edda; Fall, Johanna Jennifer Elisabeth et al. (2016). Survey report from the CODFUN 2016114 Barents Sea survey 5.-11. oktober 2016. (external link)
• Opdal, Anders Frugård; Aksnes, Dag Lorents; Rosland, Rune et al. (2013). Sognefjorden – en oppsummering av litteratur og kunnskapsstatus om fjordøkologi og vannkraftutbygging. Kunnskapsinnhenting. (external link)
• Fiksen, Øyvind; Otterlei, Erling; Arild, Folkvord (2000). Experiments and models as reciprocal tools to understand environmental links in recruitment dynamics. (external link)
• Fiksen, Øyvind; Slotte, Aril (2000). Recruitment variability in Norwegian spring-spawning herring (Clupea harengus L.): the effect of temperature in larval drift trajectories. (external link)
• Fiksen, Øyvind; Otterlei, Erling; Folkvord, Arild (2000). Experiments and models as reciprocal tools to understand environmental links in recruitment dynamics. (external link)
• Fiksen, Øyvind; Slotte, Aril (2000). Recruitment variability in Norwegian spring-spawning herring (Clupea harengus L.): the effect of temperature in larval drift trajectories. (external link)
• Giske, Jarl; Skjoldal, Hein Rune; Fiksen, Øyvind (1996). Økologisk modellering av Barentshavet: sluttrapport. (external link)
• Fiksen, Øyvind; Giske, J.; Slagstad, D. et al. (1994). Capelin migrations in the Barents Sea - a spatially explicit fitnessbased model. (external link)
• Egge, Jorun Karin; Fiksen, Øyvind; Aksnes, Dag Lorents et al. (1994). Summary of data from enclosure experiments on phytoplankton blooms at Espegrend in 1986-1993. (external link)

Feature article

• Raaheim, Arild; Fiksen, Øyvind; Jeno, Lucas Matias (2016). Mer enn forelesninger. (external link)
• Raaheim, Arild; Fiksen, Øyvind; Jeno, Lucas Matias (2016). Vi bør gjøre noe med undervisningen. (external link)

Short communication

• Reglero, Patricia; Blanco, Edurne; Ortega, Aurelio et al. (2015). Prey selectivity in piscivorous bluefin tuna larvae reared in the laboratory. (external link)

Academic literature review

• Pecseli, Hans; Trulsen, Jan Karsten; Fiksen, Øyvind (2012). Predator-prey encounter and capture rates for plankton in turbulent environments. (external link)
• Huse, Geir; Fiksen, Øyvind (2010). Modelling encounter rates and distribution of mobile predators and prey. (external link)
• Pecseli, Hans; Trulsen, Jan Karsten; Fiksen, Øyvind (2010). Predator-prey encounter rates in turbulent water: Analytical models and numerical tests. (external link)

Popular scientific article

• Jørgensen, Christian; Fiksen, Øyvind (2006). Fra kjempetorsk på Møre til dverger langs Finnmarkskysten. (external link)
• Vikebø, Frode Bendiksen; Fiksen, Øyvind (2006). Torskens tilpasning til klima og havstrømmer. (external link)
• Huse, Geir; Fiksen, Øyvind (2001). Models, global change and adaptive behaviour. (external link)
• Fiksen, Øyvind; Rosland, Rune (1998). Matematiske modeller for atferd og livsstrategi. (external link)

Abstract

• Kristiansen, Trond; Lough, R. Gregory; Werner, Francisco et al. (2005). Modeling growth and prey selection for larval cod (Gadus morhua) on Georges Bank. (external link)

Reader opinion piece

• Fiksen, Øyvind; Varpe, Øystein; Kaartvedt, S (2004). Reply to Horizons Article "Some ideas about the role of lipids in the life cycle of Calanus finmarchicus" Irigoien (2004): II. (external link)

Academic chapter/article/Conference paper

• Mangel, Marc; Fiksen, Øyvind; Giske, Jarl (2001). Chapter 4. Theoretical and statistical models in natural resource management and research. (external link)

See a complete overview of publications in Cristin.

My scientific publications are listed here

1. ETHOFISH – The effect of turbidity and hypoxia on the behaviour coastal marine fishes. 2002-2005. EU. Team leader of work package 6 Modelling. (2 post-docs, 2 technicians, 3400 KNOK).
2. Models of optimal energy allocation, maturation strategies and skipped spawning in cod. 2002-2005. NFR. 1452 KNOK (1 PhD).
3. ADAPT – Adaptation to the ecosystem: Co-evolution of life histories of Calanus and herring in the Norwegian Sea. 2003-2006. NFR. 1938 KNOK, of total project grant 6200 KNOK (1 PhD).
4. ECOBE – Effects of North Atlantic climate variability on the Barents Sea ecosystem. 2003-2006. NFR. 2920 KNOK, of total grant 22000 KNOK. Leader of Module 3: Larval and juvenile transport, growth and survival (1 PhD, 1 post-doc).
5. CLIMAR – Climate and production of marine resources. 2004-2006. In charge of the UoB contribution (1 post-doc, 1531 KNOK).
6. EUROCEANS. The loophole hypothesis of anchovy recruitment in Bay of Biscay. (1 PhD student, 1500 KNOK).
7. Sustainable harvesting of renewable resources. (2006-2010, NFR project, collaboration with IMR). In charge of about 3000 KNOK of total 6450 KNOK (1 PhD, 1 technician, the UoB contribution).
8. TBECO. Trait-based ecosystem models: from individuals to biodiversity in aquatic communities. (2009-2012). Project leader. 4550 KNOK. Two researchers.
9. EGGVALUE. Towards operational models of fish eggs and     larvae along the norwegian coast (2011-2014). 6700 KNOK
10. Nordic Centre of Excellence (NCoE) 2011- 2016: The Nordic Centre for Research on Marine Ecosystems and Resources under Climate Change NorMer. Bergen node – 2 PhD students. 5000 KNOK.
11. bioCEED. Centre of Excellence in Biology Education. I contributed to application, initiation of and was leader of WP1 during the three first years of the centre. 5 000 KNOK annually over 10 years. 2013-
12. MARmaED - Marine Management and Ecosystem Dynamics under Climate Change. - a Marie Sklodowska-Curie European Training Network under Horizon 2020 that started on 1 October 2015 and will run for 4 years. 2 PhD-students at UiB.
13. FILAMO - Connecting FIeld work and LAboratory experiments to numerical MOdeling in a changing marine environment. INTPART, NFR. Project leader. 3 800 KNOK. 2017-2022 (extension due to the pandemic).
14. PANDORA - Paradigm for Novel Dynamic Oceanic Resource Assessments. Horizon 2020. Call: H2020-SFS-2016-2017. Sustainable Food Security – Resilient and resource-efficient value. UiB-partner (80 K€). 2018-2021.