• Anthropogenic and natural size-related selection act in concert during brown trout (Salmo trutta) smolt river descent 

      Haraldstad, Tormod; Höglund, Erik; Kroglund, Frode; Olsen, Esben Moland; Hawley, Kate Louise; Haugen, Thrond Oddvar (Peer reviewed; Journal article, 2020)
      By hindering migration and inducing direct turbine mortality during downstream migration, hydropower is regarded as one of the most serious threats to anadromous salmonids. Yet, little attention has been paid to long-term ...
    • Atlantic cod individual spatial behaviour and stable isotope associations in a no-take marine reserve 

      Monk, Christopher; Power, Michael; Freitas, Carla; Harrison, Philip M.; Heupel, Michelle; Kuparinen, Anna; Moland, Even; Simpfendorfer, Colin; Villegas-Ríos, David; Olsen, Esben Moland (Peer reviewed; Journal article, 2023)
      Foraging is a behavioural process and, therefore, individual behaviour and diet are theorized to covary. However, few comparisons of individual behaviour type and diet exist in the wild. We tested whether behaviour type ...
    • Attraction of cod Gadus morhua from coastal spawning grounds to salmon farms 

      Skjæraasen, Jon Egil; Karlsen, Ørjan; Langangen, Øystein Ole Gahr; Meier, Sonnich; Dunlop, Katherine Mary; van der Meeren, Terje; Keeley, Nigel B.; Myksvoll, Mari Skuggedal; Dahle, Geir; Moland, Even; Nilsen, Rune; Elvik, Kristine Marit Schrøder; Bannister, Raymond; Olsen, Esben Moland (Peer reviewed; Journal article, 2022)
      Wild fish aggregate at aquaculture net-pens, but the underlying mechanisms are not fully understood. This study examined how salmon farms attract coastal Atlantic cod Gadus morhua from their inshore spawning grounds. ...
    • Attraction of cod Gadus morhua from coastal spawning grounds to salmon farms 

      Skjæraasen, Jon Egil; Karlsen, Ørjan; Langangen, Øystein Ole Gahr; Meier, Sonnich; Dunlop, Katherine Mary; van der Meeren, Terje; Keeley, Nigel B.; Myksvoll, Mari Skuggedal; Dahle, Geir; Moland, Even; Nilsen, Rune; Elvik, Kristine Marit Schrøder; Bannister, Raymond; Olsen, Esben Moland (Peer reviewed; Journal article, 2022)
      Wild fish aggregate at aquaculture net-pens, but the underlying mechanisms are not fully understood. This study examined how salmon farms attract coastal Atlantic cod Gadus morhua from their inshore spawning grounds. ...
    • Behavioral responses of Atlantic cod to sea temperature changes 

      Freitas, Carla; Olsen, Esben Moland; Moland, Even; Ciannelli, Lorenzo; Knutsen, Halvor (Journal article; Peer reviewed, 2015-04-17)
    • Behavioural responses of wild, spawning Atlantic cod (Gadus morhua L.) to seismic airgun exposure 

      McQueen, Kate; Skjæraasen, Jon Egil; Nyqvist, D; Olsen, Esben Moland; Karlsen, Ørjan; Meager, Justin James; Kvadsheim, Petter Helgevold; Handegard, Nils Olav; Forland, Tonje Nesse; de Jong, Karen; Sivle, Lise Doksæter (Peer reviewed; Journal article, 2023)
      Seismic airgun surveys to map petroleum deposits in the seabed may impact behaviour of marine animals over large distances. Understanding whether fish spawning behaviour is affected by this anthropogenic noise source is ...
    • BioTIME: A database of biodiversity time series for the Anthropocene 

      Dornelas, Maria; Antao, Laura H.; Moyes, Faye; Bates, Amanda E.; Magurran, Anne E.; Adam, Dusan; Akhmetzhanova, Asem A.; Appeltans, Ward; Arcos, Jose Manuel; Arnold, Haley; Ayyappan, Narayanan; Badihi, Gal; Baird, Andres H.; Barbosa, Miguel; Barreto, Tiago Egydio; Bässler, Claus; Bellgrove, Alecia; Belmaker, Jonathan; Benedetti-Cecchi, Lisandro; Bett, Brian J.; Bjorkman, Anne D.; Błazewicz, Magdalena; Blowes, Shane A.; Bloch, Christopher P.; Bonebrake, Timothy C.; Boyd, Susan; Bradford, Matt; Brooks, Andrew J.; Brown, James H.; Bruelheide, Helge; Budy, Phaedra; Carvalho, Fernando; Castaneda-Moya, Edward; Chen, Chaolun Allen; Chamblee, John F.; Chase, Tory J.; Collier, Laura Siegwart; Cooper, Elisabeth J.; Cornelissen, J. Hans C.; Cotano, Unai; Crow, Shannan Kyle; Damasceno, Gabriella; Davies, Claire H.; Davis, Robert A.; Day, Frank P.; Degraer, Steven; Doherty, Tim S.; Dunn, Timothy E.; Durigan, Giselda; Hofgaard, Annika; Johannessen, Tore; Klanderud, Kari; Knutsen, Halvor; Olsen, Esben Moland (Peer reviewed; Journal article, 2018)
    • Conservation, Spillover and Gene Flow within a Network of Northern European Marine Protected Areas 

      Huserbråten, Mats Brockstedt Olsen; Moland, Even; Knutsen, Halvor; Olsen, Esben Moland; André, Carl; Stenseth, Nils Christian (Peer reviewed; Journal article, 2013)
      To ensure that marine protected areas (MPAs) benefit conservation and fisheries, the effectiveness of MPA designs has to be evaluated in field studies. Using an interdisciplinary approach, we empirically assessed the design ...
    • Contrasting management regimes indicative of mesopredator release in temperate coastal fish assemblages 

      Synnes, Ann-Elin; Olsen, Esben Moland; Jorde, Per Erik; Knutsen, Halvor; Moland, Even (Peer reviewed; Journal article, 2023)
      The absence of functional top predators has been proposed as a mechanism acting to shape fish assemblages in temperate marine ecosystems, with cascading effects on lower trophic levels. We explore this scenario by comparing ...
    • Demographic responses to protection from harvesting in a long-lived marine species 

      Fernández-Chacón, Albert; Buttay, Lucie; Moland, Even; Knutsen, Halvor; Olsen, Esben Moland (Peer reviewed; Journal article, 2021)
      Marine protected areas (MPAs) are usually considered to have positive effects on the recovery of over-exploited populations. However, resolving the extent to which MPAs function according to their conservation goals requires ...
    • Digital Data Help Explain Drivers of Angler Satisfaction: An Example from Southern Norway 

      Johansen, Kurt; Olsen, Esben Moland; Haraldstad, Tormod; Arlinghaus, Robert; Höglund, Erik (Peer reviewed; Journal article, 2022)
      We analyzed trip-level self-reports collected by a cell phone app to understand angler satisfaction of fishing for sea trout Salmo trutta (anadromous Brown Trout) in southern Norway. We found no clear support for a positive ...
    • Digital Data Help Explain Drivers of Angler Satisfaction: An Example from Southern Norway 

      Johansen, Kurt; Olsen, Esben Moland; Haraldstad, Tormod; Arlinghaus, Robert; Höglund, Erik (Peer reviewed; Journal article, 2022)
      We analyzed trip-level self-reports collected by a cell phone app to understand angler satisfaction of fishing for sea trout Salmo trutta (anadromous Brown Trout) in southern Norway. We found no clear support for a positive ...
    • Disentangling conditional effects of multiple regime shifts on Atlantic cod productivity 

      Perälä, Tommi; Olsen, Esben Moland; Hutchings, Jeffrey (Peer reviewed; Journal article, 2020)
      Regime shifts are increasingly prevalent in the ecological literature. However, definitions vary and detection methods are still developing. Here, we employ a novel statistical algorithm based on the Bayesian online ...
    • Disentangling structural genomic and behavioral barriers in a sea of connectivity 

      Barth, Julia Maria Isis; Villegas-Ríos, David; Freitas, Carla; Moland, Even; Star, Bastiaan; André, Carl; Knutsen, Halvor; Bradbury, Ian; Dierking, Jan; Petereit, Christoph; Righton, David; Metcalfe, Julian; Jakobsen, Kjetill Sigurd; Olsen, Esben Moland; Jentoft, Sissel (Journal article; Peer reviewed, 2019)
      Genetic divergence among populations arises through natural selection or drift and is counteracted by connectivity and gene flow. In sympatric populations, isolating mechanisms are thus needed to limit the homogenizing ...
    • Disparate movement behavior and feeding ecology in sympatric ecotypes of Atlantic cod 

      Kristensen, Martin Lykke; Olsen, Esben Moland; Moland, Even; Knutsen, Halvor; Grønkjær, Peter; Koed, Anders; Källo, Kristi; Aarestrup, Kim (Peer reviewed; Journal article, 2021)
      Coexistence of ecotypes, genetically divergent population units, is a widespread phenomenon, potentially affecting ecosystem functioning and local food web stability. In coastal Skagerrak, Atlantic cod (Gadus morhua) occur ...
    • Eco-evolutionary dynamics of Atlantic cod spatial behavior maintained after the implementation of a marine reserve 

      Villegas-Ríos, David; Freitas, Carla; Moland, Even; Olsen, Esben Moland (Peer reviewed; Journal article, 2022)
      The effects of marine reserves on the life history and demography of the protected populations are well-established, typically increasing population density and body size. However, little is known about how marine reserves ...
    • Eight decades of adaptive changes in herring reproductive investment: the joint effect of environment and exploitation 

      Claireaux, Marion; dos Santos Schmidt, Thassya Christina; Olsen, Esben Moland; Slotte, Aril; Varpe, Øystein; Heino, Mikko Petteri; Enberg, Katja (Peer reviewed; Journal article, 2020)
      Reproductive investment is a central trait for population dynamics and productivity. Fishing and environmental variations are major drivers affecting population structure, dynamics, and adaptation of life-history and ...
    • Fine-Scale Population Differences in Atlantic Cod Reproductive Success: A Potential Mechanism for Ecological Speciation in a Marine Fish 

      Roney, Nancy; Oomen, Rebekah Alice; Knutsen, Halvor; Olsen, Esben Moland; Hutchings, Jeffrey (Journal article; Peer reviewed, 2018)
      Successful resource‐management and conservation outcomes ideally depend on matching the spatial scales of population demography, local adaptation, and threat mitigation. For marine fish with high dispersal capabilities, ...
    • Fine-scale population dynamics in a marine fish species inferred from dynamic state-space models 

      Rogers, Lauren; Storvik, Geir Olve; Knutsen, Halvor; Olsen, Esben Moland; Stenseth, Nils Christian (Peer reviewed; Journal article, 2017)
    • Fish community dynamics in a coastal no-take marine protected area compared to a harvested area before and after protection from fishing 

      Varnes, Bjørg Karin; Olsen, Esben Moland (Peer reviewed; Journal article, 2023)
      An ecosystem's ability to maintain key functions during environmental change is largely determined by its biodiversity. We compared fish species composition, richness, diversity, catch per unit effort (CPUE), and fish size ...