Sigurd Einum
Om
The main focus of my lab is the study of phenotypic plasticity, which is how organisms change their phenotype (e.g. morphology, physiology) throughout life to prevent negative effects of environmental change. This work consists of both broad meta-analysis and targeted laboratory studies, with the latter typically using water fleas (Daphnia, small planktonic crustaceans) as model organisms.
In addition to the focused work on phenotypic plasticity, my lab also has activities in areas such as physiology, restoration ecology, population ecology, community ecology, and environmental toxicology, and including organisms like salmonid fishes and sea lice.
For more information about the research in my lab see the Research tab.
Core lab members/collaborators
Tim Burton, Researcher, Norwegian Institute for Nature Research
Pauline Mesterton Pitter, Phd student
Vebjørn Kveberg Opsanger, Phd student
Jørgen Borchgrevink, MSc student
Håvard Haarberg Eriksen, MSc student
Forskning
Phenotypic plasticity
All organisms live in continuously changing environments. This includes changes in both abiotic (e.g. temperature, light, oxygen) and biotic (e.g., food availability, competition, predation) variables, which may fluctuate naturally or due to human impacts. A fundamental aim in ecology and evolution is therefore to understand how organisms respond to contemporary environmental variability, and to predict how organisms will cope with future changes in patterns of environmental variability.
To do this we need to explore the mechanisms that organisms use to prevent such changes to result in a decrease in their fitness (survival and reproduction). Over long time scales (multi-generational), adaptive evolution provides a method by which populations’ mean phenotypes may track gradual long-term changes in the environment. However, to deal with shorter-term within-generation environmental fluctuations this is not an efficient mechanism. Instead, more immediate changes in phenotypes, typically occurring over hours to days, will be required. Such changes are termed phenotypic plasticity, and this is currently the focus of my lab.
We are particularly interested in various aspects about how phenotypic plasticity evolves. When environments change, the ability of organisms to approach an optimal phenotype by phenotypic plasticity will depend on how much (capacity) and how rapidly (rate) phenotypes can change. Yet, our understanding of when individuals can or cannot track shifting phenotypic optima is undermined by substantial knowledge gaps regarding populations’ potential to evolve, particularly with respect to the rate dimension.
Model organism - Water fleas
In my lab we use Daphnia (D. magna) as a model organism. Daphnia are small crustaceans which commonly dominate the grazing communities in lakes and ponds, and they have several biological characteristics that make them favourable for such studies, such as clonal reproduction, short generation time, and a long history as model organisms in freshwater labs throughout the world.
Methods
Up until recently we have focused on developing analytical methods for quantifying the two components of phenotypic plasticity (rate and capacity) from experimental data, and applying these to existing data through meta-analyses (e.g. Burton et al. 2022, Einum and Burton 2022, Burton and Einum 2025, Einum and Burton 2025). Currently we are shifting towards applying these methods to own produced data from the lab where we address targeted questions about the evolution of phenotypic plasticity. Of particular focus with respect to this is studies on temperature effects, for which we have a well equipped lab with multiple climate cabinets and an automated video-assisted setup for quantifying thermal tolerance (Burton et al. 2018). Such studies are also typically linked with physiological measurements such as respiration and hemoglobin production.
Our lab organism
In our experimental work we use water fleas (Daphnia) which has many characteristics that make them highly suitable to study phenotypic plasticity
Phenotypic plasticity in Daphnia
Daphnia are famous for their phenotypic plasticity, with development of helmets (and/or spines) protecting against predators.
Publikasjoner
2026
-
Graham, Martine Camilla;
Burton, Tim;
Einum, Sigurd.
(2026)
Energy availability influences the dynamics of thermal phenotypic plasticity.
Journal of Experimental Biology
Vitenskapelig artikkel
2025
-
Bruijning, Marjolein;
Meester, Luc De;
Visser, Marco D.;
Fossen, Erlend I. F.;
Vanvelk, Héléne;
Raeymaekers, Joost A. M..
(2025)
Linking Individual Performance to Density‐Dependent Population Dynamics to Understand Temperature‐Mediated Genotype Coexistence.
Ecology Letters
Vitenskapelig artikkel
-
Einum, Sigurd;
Burton, Tim.
(2025)
Plasticity rates and capacities differ across traits and temperatures: Insights from physiological responses of aquatic organisms to salinity change.
Functional Ecology
Vitenskapelig artikkel
-
Burton, Tim;
Einum, Sigurd.
(2025)
High Capacity for Physiological Plasticity Occurs at a Slow Rate in Ectotherms.
Ecology Letters
Vitenskapelig artikkel
2024
-
Forseth, Torbjørn;
Einum, Sigurd;
Fiske, Peder;
Falkegård, Morten;
Garmo, Øyvind Aaberg;
Garseth, Åse Helen.
(2024)
Metoder for vurdering av norske laksebestander i 2024.
Vitenskapelig råd for lakseforvaltning
Vitenskapelig råd for lakseforvaltning
Rapport
-
Forseth, Torbjørn;
Einum, Sigurd;
Fiske, Peder;
Falkegård, Morten;
Garmo, Øyvind Aaberg;
Garseth, Åse Helen.
(2024)
Status for norske laksebestander i 2024.
Vitenskapelig råd for lakseforvaltning
Vitenskapelig råd for lakseforvaltning
Rapport
-
Fiske, Peder;
Forseth, Torbjørn;
Thorstad, Eva Bonsak;
Bakkestuen, Vegar;
Einum, Sigurd;
Falkegård, Morten.
(2024)
Novel large-scale mapping highlights poor state of sea trout
populations.
Aquatic conservation
Vitenskapelig artikkel
-
Skoglund, Helge;
Forseth, Torbjørn;
Einum, Sigurd.
(2024)
Among-river pattern in relative abundance of two salmonid fishes reflects temperature-dependent competition.
Freshwater Biology
Vitenskapelig artikkel
2023
-
Forseth, Torbjørn;
Einum, Sigurd;
Fiske, Peder;
Falkegård, Morten;
Garmo, Øyvind Aaberg;
Garseth, Åse Helen.
(2023)
Status for norske laksebestander i 2023.
Vitenskapelig råd for lakseforvaltning
Vitenskapelig råd for lakseforvaltning
Rapport
-
Falkegård, Morten;
Lennox, Robert;
Thorstad, Eva Bonsak;
Einum, Sigurd;
Fiske, Peder;
Garmo, Øyvind Aaberg.
(2023)
Predation of Atlantic salmon across ontogenetic stages and impacts on populations.
Canadian Journal of Fisheries and Aquatic Sciences
Vitenskapelig artikkel
-
Chaabani, Safa;
Einum, Sigurd;
Jaspers, Veerle Leontina B;
Asimakopoulos, Alexandros;
Zhang, Junjie;
Muller, Erik.
(2023)
Impact of the antidepressant Bupropion on the Dynamic Energy Budget of Daphnia magna.
Science of the Total Environment
Vitenskapelig artikkel
2022
-
Falkegård, Morten;
Thorstad, Eva Bonsak;
Forseth, Torbjørn;
Einum, Sigurd;
Fiske, Peder;
Garmo, Øyvind Aaberg.
(2022)
Effekter av predasjon på laks.
Vitenskapelig råd for lakseforvaltning
Vitenskapelig råd for lakseforvaltning
Rapport
-
Simmonds, Emily Grace;
Adjei, Kwaku Peprah;
Andersen, Christoffer Wold;
Aspheim, Janne Cathrin Hetle;
Battistin, Claudia;
Bulso, Nicola.
(2022)
Insights into the quantification and reporting of model-related uncertainty across different disciplines.
iScience
Vitenskapelig artikkel
-
Forseth, Torbjørn;
Fiske, Peder;
Einum, Sigurd;
Falkegård, Morten;
Garmo, Øyvind Aaberg;
Garseth, Åse Helen.
(2022)
Klassifisering av tilstanden til sjøørret i 1279 vassdrag.
Vitenskapelig råd for lakseforvaltning
Vitenskapelig råd for lakseforvaltning
Rapport
-
Thorstad, Eva Bonsak;
Forseth, Torbjørn;
Fiske, Peder;
Einum, Sigurd;
Falkegård, Morten;
Garmo, Øyvind Aaberg.
(2022)
Status for norske laksebestander i 2022.
Vitenskapelig råd for lakseforvaltning
Vitenskapelig råd for lakseforvaltning
Rapport
-
Rani, Varsha;
Burton, Tim;
Walsh, Matthew;
Einum, Sigurd.
(2022)
Evolutionary change in metabolic rate of Daphnia pulicaria following invasion by the predator Bythotrephes longimanus.
Ecology and Evolution
Vitenskapelig artikkel
-
Issa, Semona;
Chaabani, Safa;
Asimakopoulos, Alexandros;
Jaspers, Veerle;
Einum, Sigurd.
(2022)
Maternal dopamine exposure provides offspring starvation resistance in Daphnia.
Ecology and Evolution
Vitenskapelig artikkel
-
Burton, Tim;
Ratikainen, Irja Ida;
Einum, Sigurd.
(2022)
Environmental change and the rate of phenotypic plasticity.
Global Change Biology
Vitenskapelig artikkel
-
Forseth, Torbjørn;
Fiske, Peder;
Einum, Sigurd;
Falkegård, Morten;
Garmo, Øyvind Aaberg;
Garseth, Åse Helen.
(2022)
Oppdatert status for små og sårbare laksebestander.
Vitenskapelig råd for lakseforvaltning
Vitenskapelig råd for lakseforvaltning
Rapport
-
Obrestad, Kathrine;
Einum, Sigurd;
Vadstein, Olav.
(2022)
Stochastic variation in gut bacterial community affects reproductive rates in the water flea Daphnia magna.
FEMS Microbiology Ecology
Vitenskapelig artikkel
-
Einum, Sigurd;
Burton, Tim.
(2022)
Divergence in rates of phenotypic plasticity among ectotherms.
Ecology Letters
Vitenskapelig artikkel
-
Einum, Sigurd;
Bartuseviciute, Vitalija;
Fossen, Erlend Ignacio Fleck;
Pelabon, Christophe.
(2022)
Inferring temperature adaptation from thermal performance curves of somatic growth rate: The importance of growth measurements and mortality.
Journal of Evolutionary Biology
Vitenskapelig artikkel
-
Einum, Sigurd;
Ullern, Emil R.;
Walsh, Matthew;
Burton, Tim.
(2022)
Evolution of population dynamics following invasion by a non-native predator.
Ecology and Evolution
Vitenskapelig artikkel
2021
-
Issa, Semona;
Simonsen, Ane;
Jaspers, Veerle;
Einum, Sigurd.
(2021)
Population dynamics and resting egg production in Daphnia: Interactive effects of mercury, population density and temperature.
Science of the Total Environment
Vitenskapelig artikkel
-
Bruijning, Marjolein;
Fossen, Erlend Ignacio Fleck;
Jongejans, Eelke;
Vanvelk, Héléne;
Raeymaekers, Joost A. M.;
Govaert, Lynn.
(2021)
Host–parasite dynamics shaped by temperature and genotype: Quantifying the role of underlying vital rates.
Functional Ecology
Vitenskapelig artikkel
-
Fossen, Erlend Ignacio Fleck;
Raeymaekers, Joost A. M.;
Einum, Sigurd.
(2021)
Do genetic differences in growth thermal reaction norms maintain genetic variation in timing of diapause induction?.
Freshwater Biology
Vitenskapelig artikkel
-
Einum, Sigurd;
Bech, Claus;
Kielland, Øystein Nordeide.
(2021)
Quantitative mismatch between empirical temperature-size rule slopes and predictions based on oxygen limitation.
Scientific Reports
Vitenskapelig artikkel
2020
-
Issa, Semona;
Gamelon, Marlène;
Ciesielski, Tomasz Maciej;
Vike-Jonas, Kristine;
Asimakopoulos, Alexandros;
Jaspers, Veerle.
(2020)
Dopamine mediates life history responses to food abundance in Daphnia.
Proceedings of the Royal Society of London. Biological Sciences
Vitenskapelig artikkel
-
Issa, Semona;
Ciesielski, Tomasz Maciej;
Mikkelsen, Øyvind;
Einum, Sigurd;
Jaspers, Veerle.
(2020)
Biofilms grown in aquatic microcosms affect mercury and selenium accumulation in Daphnia.
Ecotoxicology
Vitenskapelig artikkel
-
Obrestad, Kathrine;
Vadstein, Olav;
Einum, Sigurd.
(2020)
The effect of gut microbiota on fitness in Daphnia magna.
NTNU
NTNU
Mastergradsoppgave
-
Pelabon, Christophe;
Hilde, Christoffer Høyvik;
Einum, Sigurd;
Gamelon, Marlène.
(2020)
On the use of the coefficient of variation to quantify and compare trait variation.
Evolution Letters
Vitenskapelig artikkel
-
Burton, Tim;
Einum, Sigurd.
(2020)
The old and the large may suffer disproportionately during episodes of high temperature: evidence from a keystone zooplankton species.
Conservation Physiology
Vitenskapelig artikkel
-
Burton, Tim;
Lakka, Hanna-Kaisa;
Einum, Sigurd.
(2020)
Acclimation capacity and rate change through life in the zooplankton Daphnia.
Proceedings of the Royal Society of London. Biological Sciences
Vitenskapelig artikkel
2019
-
Fossen, Erlend Ignacio Fleck;
Pelabon, Christophe;
Einum, Sigurd.
(2019)
Genetic and environmental effects on the scaling of metabolic rate with body size.
Journal of Experimental Biology
Vitenskapelig artikkel
-
Burton, Tim;
Lakka, Hanna-Kaisa;
Einum, Sigurd.
(2019)
Measuring phenotypes in fluctuating environments.
Functional Ecology
Vitenskapelig artikkel
-
Puffer, Michael;
Berg, Ole Kristian;
Hamnes, Frøydis Bolme;
Bentsen, Vidar;
Koch, Wouter;
Ugedal, Ola.
(2019)
Density-independent use of shallow riverine areas in juvenile atlantic salmon.
Canadian Journal of Fisheries and Aquatic Sciences
Vitenskapelig artikkel
-
Kielland, Øystein Nordeide;
Bech, Claus;
Einum, Sigurd.
(2019)
Warm and out of breath: thermal phenotypic plasticity in oxygen supply.
Functional Ecology
Vitenskapelig artikkel
-
Einum, Sigurd;
Fossen, Erlend Ignacio Fleck;
Parry, Victor;
Pelabon, Christophe.
(2019)
Genetic Variation in Metabolic Rate and Correlations with Other Energy Budget Components and Life History in Daphnia magna.
Evolutionary Biology
Vitenskapelig artikkel
-
Einum, Sigurd;
Ratikainen, Irja Ida;
Wright, Jonathan;
Pelabon, Christophe;
Bech, Claus;
Jutfelt, Fredrik.
(2019)
How to quantify thermal acclimation capacity?.
Global Change Biology
Vitenskapelig artikkel
2018
-
Fossen, Erlend Ignacio Fleck;
Pelabon, Christophe;
Einum, Sigurd.
(2018)
An empirical test for a zone of canalization in thermal reaction norms.
Journal of Evolutionary Biology
Vitenskapelig artikkel
-
Robertsen, Grethe;
Reid, Donald;
Einum, Sigurd;
Aronsen, Tonje;
Fleming, Ian A.;
Sundt-Hansen, Line Elisabeth Breivik.
(2018)
Can variation in standard metabolic rate explain context- dependent performance of farmed Atlantic salmon offspring?.
Ecology and Evolution
Vitenskapelig artikkel
-
Burton, Tim;
Zeis, Bettina;
Einum, Sigurd.
(2018)
Automated measurement of upper thermal limits in small aquatic animals.
Journal of Experimental Biology
Vitenskapelig artikkel
2017
-
Puffer, Michael;
Berg, Ole Kristian;
Einum, Sigurd;
Saltveit, Svein Jakob;
Forseth, Torbjørn.
(2017)
Energetic Consequences of Stranding
of Juvenile Atlantic Salmon (Salmo salar
L.).
Journal of Water Resource and Protection
Vitenskapelig artikkel
-
Kielland, Øystein Nordeide;
Bech, Claus;
Einum, Sigurd.
(2017)
No evidence for thermal transgenerational plasticity in metabolism when minimizing the potential for confounding effects.
Proceedings of the Royal Society of London. Biological Sciences
Vitenskapelig artikkel
-
Foldvik, Anders;
Einum, Sigurd;
Finstad, Anders Gravbrøt;
Ugedal, Ola.
(2017)
Linking watershed and microhabitat characteristics: effects on production of Atlantic salmonids (Salmo salar and Salmo trutta).
Ecology of Freshwater Fish
Vitenskapelig artikkel
-
Kielland, Øystein Nordeide;
Bech, Claus;
Einum, Sigurd.
(2017)
Is there plasticity in developmental instability? The effect of daily thermal fluctuations in an ectotherm.
Ecology and Evolution
Vitenskapelig artikkel
-
Teichert, Maxim;
Foldvik, Anders;
Einum, Sigurd;
Finstad, Anders Gravbrøt;
Forseth, Torbjørn;
Ugedal, Ola.
(2017)
Interactions between local population density and limited habitat resources determine movements of juvenile Atlantic salmon.
Canadian Journal of Fisheries and Aquatic Sciences
Vitenskapelig artikkel
-
Foldvik, Anders;
Einum, Sigurd;
Finstad, Anders Gravbrøt.
(2017)
Spatial diffusion modelling of juvenile Atlantic salmon (Salmo salar) shows ontogenetic increase in movement rates.
Canadian Journal of Fisheries and Aquatic Sciences
Vitenskapelig artikkel
2016
-
Yashchenko, Varvara;
Fossen, Erlend Ignacio Fleck;
Kielland, Øystein Nordeide;
Einum, Sigurd.
(2016)
Negative relationships between population density and metabolic rates are not general.
Journal of Animal Ecology
Vitenskapelig artikkel
-
Lumley, Alyson J.;
Diamond, Sian E.;
Einum, Sigurd;
Yeates, Sarah E.;
Peruffo, Danielle;
Emerson, Brent C..
(2016)
Post-copulatory opportunities for sperm competition and cryptic female choice provide no offspring fitness benefits in externally fertilizing salmon.
Royal Society Open Science
Vitenskapelig artikkel
2015
-
Sereni, Laura;
Einum, Sigurd.
(2015)
No Evidence for Activity Adjustment in Response to Increased Density in Daphnia magna.
PLOS ONE
Vitenskapelig artikkel
-
Louhi, Paulina;
Robertsen, Grethe;
Fleming, Ian A.;
Einum, Sigurd.
(2015)
Can timing of spawning explain the increase in egg size with female size in salmonid fish?.
Ecology of Freshwater Fish
Vitenskapelig artikkel
-
Puffer, Michael;
Berg, Ole Kristian;
Huusko, Ari;
Vehanen, Teppo;
Einum, Sigurd.
(2015)
Effects of intra-and interspecific competition and hydropeaking on growth of juvenile Atlantic salmon (Salmo salar).
Ecology of Freshwater Fish
Vitenskapelig artikkel
-
Puffer, Michael;
Berg, Ole Kristian;
Huusko, Ari;
Vehanen, Teppo;
Forseth, Torbjørn;
Einum, Sigurd.
(2015)
Seasonal effects of hydropeaking on growth, energetics and movement of juvenile atlantic salmon (Salmo salar).
River Research and Applications
Vitenskapelig artikkel
2014
-
Yeates, Sarah E.;
Einum, Sigurd;
Fleming, Ian A.;
Holt, William V.;
Gage, Matthew J.G..
(2014)
Assessing risks of invasion through gamete performance: Farm Atlantic salmon sperm and eggs show equivalence in function, fertility, compatibility and competitiveness to wild Atlantic salmon.
Evolutionary Applications
Vitenskapelig artikkel
-
Robertsen, Grethe;
Armstrong, JD;
Nislow, KH;
Herfindal, Ivar;
Mckelvey, S;
Einum, Sigurd.
(2014)
Spatial variation in the relationship between performance and metabolic rate in wild juvenile Atlantic salmon.
Journal of Animal Ecology
Vitenskapelig artikkel
-
Forseth, Torbjørn;
Harby, Atle;
Ugedal, Ola;
Pulg, Ulrich;
Fjeldstad, Hans-Petter;
Robertsen, Grethe.
(2014)
Handbook for environmental design in regulated salmon rivers.
Norsk institutt for naturforskning
Norsk institutt for naturforskning
Rapport
-
Einum, Sigurd.
(2014)
Ecological modeling of metabolic rates predicts diverging optima across food abundances.
The American Naturalist
Vitenskapelig artikkel
2013
-
Robertsen, Grethe;
Skoglund, Helge;
Einum, Sigurd.
(2013)
Offspring size effects vary over fine spatio-temporal scales in Atlantic salmon (Salmo salar).
Canadian Journal of Fisheries and Aquatic Sciences
Vitenskapelig artikkel
-
Forseth, Torbjørn;
Harby, Atle;
Ugedal, Ola;
Pulg, Ulrich;
Fjeldstad, Hans-Petter;
Robertsen, Grethe.
(2013)
Håndbok for miljødesign i regulerte laksevassdrag.
Norsk institutt for naturforskning
Norsk institutt for naturforskning
Rapport
-
Yeates, SE;
Diamond, SE;
Einum, Sigurd;
Emerson, Brent C.;
Holt, WV;
Gage, MJG.
(2013)
CRYPTIC CHOICE OF CONSPECIFIC SPERM CONTROLLED BY THE IMPACT OF OVARIAN FLUID ON SPERM SWIMMING BEHAVIOR.
Evolution
Vitenskapelig artikkel
-
Teichert, Maxim;
Einum, Sigurd;
Finstad, Anders Gravbrøt;
Ugedal, Ola;
Forseth, Torbjørn.
(2013)
Ontogenetic timing of density dependence: location-specific patterns reflect distribution of a limiting resource.
Population Ecology
Vitenskapelig artikkel
-
Finstad, Anders Gravbrøt;
Sættem, Leif Magnus;
Einum, Sigurd.
(2013)
Historical abundance and spatial distributions of spawners determine juvenile habitat accessibility in salmon: implications for population dynamics and management targets.
Canadian Journal of Fisheries and Aquatic Sciences
Vitenskapelig artikkel
2012
-
Einum, Sigurd;
Forseth, Torbjørn;
Finstad, Anders Gravbrøt.
(2012)
Individual variation in response to intraspecific competition: problems with inference from growth variation measures.
Methods in Ecology and Evolution
Leserinnlegg
-
Foldvik, Anders;
Teichert, Maxim;
Einum, Sigurd;
Finstad, Anders Gravbrøt;
Ugedal, Ola;
Forseth, Torbjørn.
(2012)
Spatial distribution correspondence of a juvenile Atlantic salmon Salmo salar cohort from age 0+ to 1+ years.
Journal of Fish Biology
Vitenskapelig artikkel
-
Skoglund, Helge;
Einum, Sigurd;
Forseth, Torbjørn;
Barlaup, Bjørn Torgeir.
(2012)
The penalty for arriving late in emerging salmonid juveniles: differences between species correspond to their interspecific competitive ability.
Functional Ecology
Vitenskapelig artikkel
-
Sundt-Hansen, Line Elisabeth Breivik;
Einum, Sigurd;
Neregård, Lena;
Björnsson, Björn Thrandur;
Johnsson, Jörgen I;
Fleming, Ian A..
(2012)
Growth hormone reduces growth in free-living Atlantic salmon fry.
Functional Ecology
Vitenskapelig artikkel
-
Einum, Sigurd;
Finstad, Anders Gravbrøt;
Robertsen, Grethe;
Nislow, Keith H.;
McKelvey, Simon;
Armstrong, John D..
(2012)
Natal movement in juvenile Atlantic salmon: a body size-dependent strategy?.
Population Ecology
Vitenskapelig artikkel
-
Einum, Sigurd;
Kenneth, Nygård.
(2012)
Movement and growth of European grayling Thymallus thymallus in two Norwegian rivers.
Norges teknisk-naturvitenskapelige universitet
Norges teknisk-naturvitenskapelige universitet
Mastergradsoppgave
-
Einum, Sigurd;
Klausen, Torstein Rød.
(2012)
Population regulation in the tadpole shrimp Lepidurus arcticus.
Norges teknisk-naturvitenskapelige universitet
Norges teknisk-naturvitenskapelige universitet
Mastergradsoppgave
2011
-
Robertsen, Grethe;
Kvingedal, Eli;
Einum, Sigurd.
(2011)
Is there genetic variation in the response to competition intensity in juvenile brown trout Salmo trutta?.
Journal of Fish Biology
Vitenskapelig artikkel
-
Aas, Øystein;
Einum, Sigurd;
Klemetsen, Anders;
Skurdal, Jostein.
(2011)
Atlantic salmon ecology.
Blackwell Publishing
Blackwell Publishing
Vitenskapelig antologi/Konferanseserie
-
Kvingedal, Eli;
Einum, Sigurd.
(2011)
Intracohort and intercohort spatial density dependence in juvenile brown trout (Salmo trutta).
Canadian Journal of Fisheries and Aquatic Sciences
Vitenskapelig artikkel
-
Einum, Sigurd;
Nislow, KH;
Mckelvey, S;
Armstrong, JD.
(2011)
The spatial scale of competition from recruits on an older cohort in Atlantic salmon.
Oecologia
Vitenskapelig artikkel
-
Einum, Sigurd;
Nislow, KH.
(2011)
Variation in population size through tiem and space: theory and recent empirical advances from Atlantic salmon.
Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
-
Fleming, Ian A.;
Einum, Sigurd.
(2011)
Reproductive ecology: a tale of two sexes.
Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
-
Einum, Sigurd;
Kvingedal, Eli.
(2011)
Relative importance of size-based competitive ability and degree of niche overlap in inter-cohort competition of Atlantic salmon (Salmo salar) juveniles.
Canadian Journal of Fisheries and Aquatic Sciences
Vitenskapelig artikkel
-
Einum, Sigurd;
Robertsen, Grethe;
Nislow, KH;
Mckelvey, S;
Armstrong, JD.
(2011)
The spatial scale of density-dependent growth and implications for dispersal from nests in juvenile Atlantic salmon.
Oecologia
Vitenskapelig artikkel
-
Aas, Øystein;
Policansky, David;
Einum, Sigurd;
Skurdal, Jostein.
(2011)
Salmon ecological research and conservation.
Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
-
Bentsen, Vidar;
Berg, Ole Kristian;
Einum, Sigurd.
(2011)
Desnity dependent habitat use of Atlantic salmon, Salmo salar L.- stranding in hydropower rivers.
Norges teknisk-naturvitenskapelige universitet
Norges teknisk-naturvitenskapelige universitet
Mastergradsoppgave
-
Teichert, Maxim A.K.;
Einum, Sigurd.
(2011)
Regulation in Atlantic salmon (Salmo salar): The interaction between habitat and density.
Norges teknisk-naturvitenskapelige universitet
Doktoravhandlinger ved NTNU, 1503-8181 (2011:138)
Doktorgradsavhandling
-
Skoglund, Helge;
Einum, Sigurd;
Forseth, Torbjørn;
Barlaup, Bjørn Torgeir.
(2011)
Phenotypic plasticity in physiological status at emergence from nests as a response to temperature in Atlantic salmon (Salmo salar).
Canadian Journal of Fisheries and Aquatic Sciences
Vitenskapelig artikkel
-
Teichert, Maxim;
Foldvik, Anders;
Forseth, Torbjørn;
Ugedal, Ola;
Einum, Sigurd;
Finstad, Anders Gravbrøt.
(2011)
Effects of spawning distribution on juvenile Atlantic salmon (Salmo salar) density and growth.
Canadian Journal of Fisheries and Aquatic Sciences
Vitenskapelig artikkel
-
Skoglund, Helge;
Einum, Sigurd;
Robertsen, Grethe.
(2011)
Competitive interactions shape offspring performance in relation to seasonal timing of emergence in Atlantic salmon.
Journal of Animal Ecology
Vitenskapelig artikkel
-
Hamnes, Froydis Bolme;
Einum, Sigurd;
Berg, Ole Kristian.
(2011)
Size-dependent habitat use in juvenile Atlantic salmon (Salmo salar L.).
Norges teknisk-naturvitenskapelige universitet
Norges teknisk-naturvitenskapelige universitet
Mastergradsoppgave
-
Kvingedal, Eli;
Einum, Sigurd.
(2011)
Prior residency advantage for Atlantic salmon in the wild: effects of habitat quality.
Behavioral Ecology and Sociobiology
Vitenskapelig artikkel
-
Martinussen, Pål Anders;
Robertsen, Grethe;
Einum, Sigurd.
(2011)
Density-dependent diet composition of juvenile Atlantic salmon (Salmo salar).
Ecology of Freshwater Fish
Vitenskapelig artikkel
2010
-
Finstad, Anders Gravbrøt;
Einum, Sigurd;
Sættem, Leif Magnus;
Hellen, Bjart Are.
(2010)
Spatial distribution of Atlantic salmon (Salmo salar) breeders: among- and within-river variation and predicted consequences for offspring habitat availability.
Canadian Journal of Fisheries and Aquatic Sciences
Vitenskapelig artikkel
-
Foldvik, Anders;
Finstad, Anders Gravbrøt;
Einum, Sigurd.
(2010)
Relating juvenile spatial distribution to breeding patterns in anadromous salmonid populations.
Journal of Animal Ecology
Vitenskapelig artikkel
-
Martinussen, Pål Anders;
Einum, Sigurd;
Robertsen, Grethe.
(2010)
Density-dependent diet composition of juvenile Atlantic salmon (Salmo salar).
NTNU, Institutt for biologi
NTNU, Institutt for biologi
Mastergradsoppgave
2009
-
Finstad, AG;
Einum, Sigurd;
Ugedal, O;
Forseth, T.
(2009)
Spatial distribution of limited resources and local density regulation in juvenile Atlantic salmon.
Journal of Animal Ecology
Vitenskapelig artikkel
-
Sundt-Hansen, L;
Neregård, Lena;
Einum, Sigurd;
Höjesjö, Johan;
Björnsson, Björn T;
Hindar, Kjetil.
(2009)
Growth enhanced brown trout show increased movement activity in the wild.
Functional Ecology
Vitenskapelig artikkel
-
Yeates, SE;
Einum, Sigurd;
Fleming, IA;
Megens, HJ;
Stet, RJM;
Hindar, K.
(2009)
Atlantic salmon eggs favour sperm in competition that have similar major histocompatibility alleles.
Proceedings of the Royal Society of London. Biological Sciences
Vitenskapelig artikkel
2008
-
Neregard, L;
Sundt-Hansen, L;
Hindar, K;
Einum, Sigurd;
Johnsson, JI;
Devlin, RH.
(2008)
Wild Atlantic salmon Salmo salar L. strains have greater growth potential than a domesticated strain selected for fast growth.
Journal of Fish Biology
Vitenskapelig artikkel
-
Einum, Sigurd;
Nislow, KH;
Reynolds, JD;
Sutherland, WJ.
(2008)
Predicting population responses to restoration of breeding habitat in Atlantic salmon.
Journal of Applied Ecology
Vitenskapelig artikkel
-
Einum, Sigurd;
Nislow, KH;
Mckelvey, S;
Armstrong, JD.
(2008)
Nest distribution shaping within-stream variation in Atlantic salmon juvenile abundance and competition over small spatial scales.
Journal of Animal Ecology
Vitenskapelig artikkel
-
Foldvik, Anders;
Einum, Sigurd.
(2008)
Relating juvenile spatial distribution to breeding patterns in anadromous salmonid populations.
NTNU, Institutt for biologi
NTNU, Institutt for biologi
Mastergradsoppgave
-
Roberge, C;
Normandeau, E;
Einum, Sigurd;
Guderley, H;
Bernatchez, L.
(2008)
Genetic consequences of interbreeding between farmed and wild Atlantic salmon: insights from the transcriptome.
Molecular Ecology
Vitenskapelig artikkel
-
Berg, Marius;
Einum, Sigurd.
(2008)
Er beskatning av Atlantisk laks selektiv med hensyn på innvandringstidspunkt og størrelse?.
NTNU, Institutt for biologi
NTNU, Institutt for biologi
Mastergradsoppgave
-
Einum, Sigurd;
Robertsen, Grethe;
Fleming, Ian A..
(2008)
Adaptive landscapes and density-dependent selection in declining salmonid populations: going beyond numerical responses to human disturbance.
Evolutionary Applications
Vitenskapelig oversiktsartikkel/review
2007
-
Sundt-Hansen, Line E.B.;
Sundstrom, F;
Einum, Sigurd;
Hindar, K;
Fleming, IA;
Devlin, RH.
(2007)
Genetically enhanced growth causes increased mortality in hypoxic environments.
Biology Letters
Vitenskapelig artikkel
-
Finstad, AG;
Einum, Sigurd;
Forseth, T;
Ugedal, O.
(2007)
Shelter availability affects behaviour, size-dependent and mean growth of juvenile Atlantic salmon.
Freshwater Biology
Vitenskapelig artikkel
Tidsskriftspublikasjoner
-
Graham, Martine Camilla;
Burton, Tim;
Einum, Sigurd.
(2026)
Energy availability influences the dynamics of thermal phenotypic plasticity.
Journal of Experimental Biology
Vitenskapelig artikkel
-
Bruijning, Marjolein;
Meester, Luc De;
Visser, Marco D.;
Fossen, Erlend I. F.;
Vanvelk, Héléne;
Raeymaekers, Joost A. M..
(2025)
Linking Individual Performance to Density‐Dependent Population Dynamics to Understand Temperature‐Mediated Genotype Coexistence.
Ecology Letters
Vitenskapelig artikkel
-
Einum, Sigurd;
Burton, Tim.
(2025)
Plasticity rates and capacities differ across traits and temperatures: Insights from physiological responses of aquatic organisms to salinity change.
Functional Ecology
Vitenskapelig artikkel
-
Burton, Tim;
Einum, Sigurd.
(2025)
High Capacity for Physiological Plasticity Occurs at a Slow Rate in Ectotherms.
Ecology Letters
Vitenskapelig artikkel
-
Fiske, Peder;
Forseth, Torbjørn;
Thorstad, Eva Bonsak;
Bakkestuen, Vegar;
Einum, Sigurd;
Falkegård, Morten.
(2024)
Novel large-scale mapping highlights poor state of sea trout
populations.
Aquatic conservation
Vitenskapelig artikkel
-
Skoglund, Helge;
Forseth, Torbjørn;
Einum, Sigurd.
(2024)
Among-river pattern in relative abundance of two salmonid fishes reflects temperature-dependent competition.
Freshwater Biology
Vitenskapelig artikkel
-
Falkegård, Morten;
Lennox, Robert;
Thorstad, Eva Bonsak;
Einum, Sigurd;
Fiske, Peder;
Garmo, Øyvind Aaberg.
(2023)
Predation of Atlantic salmon across ontogenetic stages and impacts on populations.
Canadian Journal of Fisheries and Aquatic Sciences
Vitenskapelig artikkel
-
Chaabani, Safa;
Einum, Sigurd;
Jaspers, Veerle Leontina B;
Asimakopoulos, Alexandros;
Zhang, Junjie;
Muller, Erik.
(2023)
Impact of the antidepressant Bupropion on the Dynamic Energy Budget of Daphnia magna.
Science of the Total Environment
Vitenskapelig artikkel
-
Simmonds, Emily Grace;
Adjei, Kwaku Peprah;
Andersen, Christoffer Wold;
Aspheim, Janne Cathrin Hetle;
Battistin, Claudia;
Bulso, Nicola.
(2022)
Insights into the quantification and reporting of model-related uncertainty across different disciplines.
iScience
Vitenskapelig artikkel
-
Rani, Varsha;
Burton, Tim;
Walsh, Matthew;
Einum, Sigurd.
(2022)
Evolutionary change in metabolic rate of Daphnia pulicaria following invasion by the predator Bythotrephes longimanus.
Ecology and Evolution
Vitenskapelig artikkel
-
Issa, Semona;
Chaabani, Safa;
Asimakopoulos, Alexandros;
Jaspers, Veerle;
Einum, Sigurd.
(2022)
Maternal dopamine exposure provides offspring starvation resistance in Daphnia.
Ecology and Evolution
Vitenskapelig artikkel
-
Burton, Tim;
Ratikainen, Irja Ida;
Einum, Sigurd.
(2022)
Environmental change and the rate of phenotypic plasticity.
Global Change Biology
Vitenskapelig artikkel
-
Obrestad, Kathrine;
Einum, Sigurd;
Vadstein, Olav.
(2022)
Stochastic variation in gut bacterial community affects reproductive rates in the water flea Daphnia magna.
FEMS Microbiology Ecology
Vitenskapelig artikkel
-
Einum, Sigurd;
Burton, Tim.
(2022)
Divergence in rates of phenotypic plasticity among ectotherms.
Ecology Letters
Vitenskapelig artikkel
-
Einum, Sigurd;
Bartuseviciute, Vitalija;
Fossen, Erlend Ignacio Fleck;
Pelabon, Christophe.
(2022)
Inferring temperature adaptation from thermal performance curves of somatic growth rate: The importance of growth measurements and mortality.
Journal of Evolutionary Biology
Vitenskapelig artikkel
-
Einum, Sigurd;
Ullern, Emil R.;
Walsh, Matthew;
Burton, Tim.
(2022)
Evolution of population dynamics following invasion by a non-native predator.
Ecology and Evolution
Vitenskapelig artikkel
-
Issa, Semona;
Simonsen, Ane;
Jaspers, Veerle;
Einum, Sigurd.
(2021)
Population dynamics and resting egg production in Daphnia: Interactive effects of mercury, population density and temperature.
Science of the Total Environment
Vitenskapelig artikkel
-
Bruijning, Marjolein;
Fossen, Erlend Ignacio Fleck;
Jongejans, Eelke;
Vanvelk, Héléne;
Raeymaekers, Joost A. M.;
Govaert, Lynn.
(2021)
Host–parasite dynamics shaped by temperature and genotype: Quantifying the role of underlying vital rates.
Functional Ecology
Vitenskapelig artikkel
-
Fossen, Erlend Ignacio Fleck;
Raeymaekers, Joost A. M.;
Einum, Sigurd.
(2021)
Do genetic differences in growth thermal reaction norms maintain genetic variation in timing of diapause induction?.
Freshwater Biology
Vitenskapelig artikkel
-
Einum, Sigurd;
Bech, Claus;
Kielland, Øystein Nordeide.
(2021)
Quantitative mismatch between empirical temperature-size rule slopes and predictions based on oxygen limitation.
Scientific Reports
Vitenskapelig artikkel
-
Issa, Semona;
Gamelon, Marlène;
Ciesielski, Tomasz Maciej;
Vike-Jonas, Kristine;
Asimakopoulos, Alexandros;
Jaspers, Veerle.
(2020)
Dopamine mediates life history responses to food abundance in Daphnia.
Proceedings of the Royal Society of London. Biological Sciences
Vitenskapelig artikkel
-
Issa, Semona;
Ciesielski, Tomasz Maciej;
Mikkelsen, Øyvind;
Einum, Sigurd;
Jaspers, Veerle.
(2020)
Biofilms grown in aquatic microcosms affect mercury and selenium accumulation in Daphnia.
Ecotoxicology
Vitenskapelig artikkel
-
Pelabon, Christophe;
Hilde, Christoffer Høyvik;
Einum, Sigurd;
Gamelon, Marlène.
(2020)
On the use of the coefficient of variation to quantify and compare trait variation.
Evolution Letters
Vitenskapelig artikkel
-
Burton, Tim;
Einum, Sigurd.
(2020)
The old and the large may suffer disproportionately during episodes of high temperature: evidence from a keystone zooplankton species.
Conservation Physiology
Vitenskapelig artikkel
-
Burton, Tim;
Lakka, Hanna-Kaisa;
Einum, Sigurd.
(2020)
Acclimation capacity and rate change through life in the zooplankton Daphnia.
Proceedings of the Royal Society of London. Biological Sciences
Vitenskapelig artikkel
-
Fossen, Erlend Ignacio Fleck;
Pelabon, Christophe;
Einum, Sigurd.
(2019)
Genetic and environmental effects on the scaling of metabolic rate with body size.
Journal of Experimental Biology
Vitenskapelig artikkel
-
Burton, Tim;
Lakka, Hanna-Kaisa;
Einum, Sigurd.
(2019)
Measuring phenotypes in fluctuating environments.
Functional Ecology
Vitenskapelig artikkel
-
Puffer, Michael;
Berg, Ole Kristian;
Hamnes, Frøydis Bolme;
Bentsen, Vidar;
Koch, Wouter;
Ugedal, Ola.
(2019)
Density-independent use of shallow riverine areas in juvenile atlantic salmon.
Canadian Journal of Fisheries and Aquatic Sciences
Vitenskapelig artikkel
-
Kielland, Øystein Nordeide;
Bech, Claus;
Einum, Sigurd.
(2019)
Warm and out of breath: thermal phenotypic plasticity in oxygen supply.
Functional Ecology
Vitenskapelig artikkel
-
Einum, Sigurd;
Fossen, Erlend Ignacio Fleck;
Parry, Victor;
Pelabon, Christophe.
(2019)
Genetic Variation in Metabolic Rate and Correlations with Other Energy Budget Components and Life History in Daphnia magna.
Evolutionary Biology
Vitenskapelig artikkel
-
Einum, Sigurd;
Ratikainen, Irja Ida;
Wright, Jonathan;
Pelabon, Christophe;
Bech, Claus;
Jutfelt, Fredrik.
(2019)
How to quantify thermal acclimation capacity?.
Global Change Biology
Vitenskapelig artikkel
-
Fossen, Erlend Ignacio Fleck;
Pelabon, Christophe;
Einum, Sigurd.
(2018)
An empirical test for a zone of canalization in thermal reaction norms.
Journal of Evolutionary Biology
Vitenskapelig artikkel
-
Robertsen, Grethe;
Reid, Donald;
Einum, Sigurd;
Aronsen, Tonje;
Fleming, Ian A.;
Sundt-Hansen, Line Elisabeth Breivik.
(2018)
Can variation in standard metabolic rate explain context- dependent performance of farmed Atlantic salmon offspring?.
Ecology and Evolution
Vitenskapelig artikkel
-
Burton, Tim;
Zeis, Bettina;
Einum, Sigurd.
(2018)
Automated measurement of upper thermal limits in small aquatic animals.
Journal of Experimental Biology
Vitenskapelig artikkel
-
Puffer, Michael;
Berg, Ole Kristian;
Einum, Sigurd;
Saltveit, Svein Jakob;
Forseth, Torbjørn.
(2017)
Energetic Consequences of Stranding
of Juvenile Atlantic Salmon (Salmo salar
L.).
Journal of Water Resource and Protection
Vitenskapelig artikkel
-
Kielland, Øystein Nordeide;
Bech, Claus;
Einum, Sigurd.
(2017)
No evidence for thermal transgenerational plasticity in metabolism when minimizing the potential for confounding effects.
Proceedings of the Royal Society of London. Biological Sciences
Vitenskapelig artikkel
-
Foldvik, Anders;
Einum, Sigurd;
Finstad, Anders Gravbrøt;
Ugedal, Ola.
(2017)
Linking watershed and microhabitat characteristics: effects on production of Atlantic salmonids (Salmo salar and Salmo trutta).
Ecology of Freshwater Fish
Vitenskapelig artikkel
-
Kielland, Øystein Nordeide;
Bech, Claus;
Einum, Sigurd.
(2017)
Is there plasticity in developmental instability? The effect of daily thermal fluctuations in an ectotherm.
Ecology and Evolution
Vitenskapelig artikkel
-
Teichert, Maxim;
Foldvik, Anders;
Einum, Sigurd;
Finstad, Anders Gravbrøt;
Forseth, Torbjørn;
Ugedal, Ola.
(2017)
Interactions between local population density and limited habitat resources determine movements of juvenile Atlantic salmon.
Canadian Journal of Fisheries and Aquatic Sciences
Vitenskapelig artikkel
-
Foldvik, Anders;
Einum, Sigurd;
Finstad, Anders Gravbrøt.
(2017)
Spatial diffusion modelling of juvenile Atlantic salmon (Salmo salar) shows ontogenetic increase in movement rates.
Canadian Journal of Fisheries and Aquatic Sciences
Vitenskapelig artikkel
-
Yashchenko, Varvara;
Fossen, Erlend Ignacio Fleck;
Kielland, Øystein Nordeide;
Einum, Sigurd.
(2016)
Negative relationships between population density and metabolic rates are not general.
Journal of Animal Ecology
Vitenskapelig artikkel
-
Lumley, Alyson J.;
Diamond, Sian E.;
Einum, Sigurd;
Yeates, Sarah E.;
Peruffo, Danielle;
Emerson, Brent C..
(2016)
Post-copulatory opportunities for sperm competition and cryptic female choice provide no offspring fitness benefits in externally fertilizing salmon.
Royal Society Open Science
Vitenskapelig artikkel
-
Sereni, Laura;
Einum, Sigurd.
(2015)
No Evidence for Activity Adjustment in Response to Increased Density in Daphnia magna.
PLOS ONE
Vitenskapelig artikkel
-
Louhi, Paulina;
Robertsen, Grethe;
Fleming, Ian A.;
Einum, Sigurd.
(2015)
Can timing of spawning explain the increase in egg size with female size in salmonid fish?.
Ecology of Freshwater Fish
Vitenskapelig artikkel
-
Puffer, Michael;
Berg, Ole Kristian;
Huusko, Ari;
Vehanen, Teppo;
Einum, Sigurd.
(2015)
Effects of intra-and interspecific competition and hydropeaking on growth of juvenile Atlantic salmon (Salmo salar).
Ecology of Freshwater Fish
Vitenskapelig artikkel
-
Puffer, Michael;
Berg, Ole Kristian;
Huusko, Ari;
Vehanen, Teppo;
Forseth, Torbjørn;
Einum, Sigurd.
(2015)
Seasonal effects of hydropeaking on growth, energetics and movement of juvenile atlantic salmon (Salmo salar).
River Research and Applications
Vitenskapelig artikkel
-
Yeates, Sarah E.;
Einum, Sigurd;
Fleming, Ian A.;
Holt, William V.;
Gage, Matthew J.G..
(2014)
Assessing risks of invasion through gamete performance: Farm Atlantic salmon sperm and eggs show equivalence in function, fertility, compatibility and competitiveness to wild Atlantic salmon.
Evolutionary Applications
Vitenskapelig artikkel
-
Robertsen, Grethe;
Armstrong, JD;
Nislow, KH;
Herfindal, Ivar;
Mckelvey, S;
Einum, Sigurd.
(2014)
Spatial variation in the relationship between performance and metabolic rate in wild juvenile Atlantic salmon.
Journal of Animal Ecology
Vitenskapelig artikkel
-
Einum, Sigurd.
(2014)
Ecological modeling of metabolic rates predicts diverging optima across food abundances.
The American Naturalist
Vitenskapelig artikkel
-
Robertsen, Grethe;
Skoglund, Helge;
Einum, Sigurd.
(2013)
Offspring size effects vary over fine spatio-temporal scales in Atlantic salmon (Salmo salar).
Canadian Journal of Fisheries and Aquatic Sciences
Vitenskapelig artikkel
-
Yeates, SE;
Diamond, SE;
Einum, Sigurd;
Emerson, Brent C.;
Holt, WV;
Gage, MJG.
(2013)
CRYPTIC CHOICE OF CONSPECIFIC SPERM CONTROLLED BY THE IMPACT OF OVARIAN FLUID ON SPERM SWIMMING BEHAVIOR.
Evolution
Vitenskapelig artikkel
-
Teichert, Maxim;
Einum, Sigurd;
Finstad, Anders Gravbrøt;
Ugedal, Ola;
Forseth, Torbjørn.
(2013)
Ontogenetic timing of density dependence: location-specific patterns reflect distribution of a limiting resource.
Population Ecology
Vitenskapelig artikkel
-
Finstad, Anders Gravbrøt;
Sættem, Leif Magnus;
Einum, Sigurd.
(2013)
Historical abundance and spatial distributions of spawners determine juvenile habitat accessibility in salmon: implications for population dynamics and management targets.
Canadian Journal of Fisheries and Aquatic Sciences
Vitenskapelig artikkel
-
Einum, Sigurd;
Forseth, Torbjørn;
Finstad, Anders Gravbrøt.
(2012)
Individual variation in response to intraspecific competition: problems with inference from growth variation measures.
Methods in Ecology and Evolution
Leserinnlegg
-
Foldvik, Anders;
Teichert, Maxim;
Einum, Sigurd;
Finstad, Anders Gravbrøt;
Ugedal, Ola;
Forseth, Torbjørn.
(2012)
Spatial distribution correspondence of a juvenile Atlantic salmon Salmo salar cohort from age 0+ to 1+ years.
Journal of Fish Biology
Vitenskapelig artikkel
-
Skoglund, Helge;
Einum, Sigurd;
Forseth, Torbjørn;
Barlaup, Bjørn Torgeir.
(2012)
The penalty for arriving late in emerging salmonid juveniles: differences between species correspond to their interspecific competitive ability.
Functional Ecology
Vitenskapelig artikkel
-
Sundt-Hansen, Line Elisabeth Breivik;
Einum, Sigurd;
Neregård, Lena;
Björnsson, Björn Thrandur;
Johnsson, Jörgen I;
Fleming, Ian A..
(2012)
Growth hormone reduces growth in free-living Atlantic salmon fry.
Functional Ecology
Vitenskapelig artikkel
-
Einum, Sigurd;
Finstad, Anders Gravbrøt;
Robertsen, Grethe;
Nislow, Keith H.;
McKelvey, Simon;
Armstrong, John D..
(2012)
Natal movement in juvenile Atlantic salmon: a body size-dependent strategy?.
Population Ecology
Vitenskapelig artikkel
-
Robertsen, Grethe;
Kvingedal, Eli;
Einum, Sigurd.
(2011)
Is there genetic variation in the response to competition intensity in juvenile brown trout Salmo trutta?.
Journal of Fish Biology
Vitenskapelig artikkel
-
Kvingedal, Eli;
Einum, Sigurd.
(2011)
Intracohort and intercohort spatial density dependence in juvenile brown trout (Salmo trutta).
Canadian Journal of Fisheries and Aquatic Sciences
Vitenskapelig artikkel
-
Einum, Sigurd;
Nislow, KH;
Mckelvey, S;
Armstrong, JD.
(2011)
The spatial scale of competition from recruits on an older cohort in Atlantic salmon.
Oecologia
Vitenskapelig artikkel
-
Einum, Sigurd;
Kvingedal, Eli.
(2011)
Relative importance of size-based competitive ability and degree of niche overlap in inter-cohort competition of Atlantic salmon (Salmo salar) juveniles.
Canadian Journal of Fisheries and Aquatic Sciences
Vitenskapelig artikkel
-
Einum, Sigurd;
Robertsen, Grethe;
Nislow, KH;
Mckelvey, S;
Armstrong, JD.
(2011)
The spatial scale of density-dependent growth and implications for dispersal from nests in juvenile Atlantic salmon.
Oecologia
Vitenskapelig artikkel
-
Skoglund, Helge;
Einum, Sigurd;
Forseth, Torbjørn;
Barlaup, Bjørn Torgeir.
(2011)
Phenotypic plasticity in physiological status at emergence from nests as a response to temperature in Atlantic salmon (Salmo salar).
Canadian Journal of Fisheries and Aquatic Sciences
Vitenskapelig artikkel
-
Teichert, Maxim;
Foldvik, Anders;
Forseth, Torbjørn;
Ugedal, Ola;
Einum, Sigurd;
Finstad, Anders Gravbrøt.
(2011)
Effects of spawning distribution on juvenile Atlantic salmon (Salmo salar) density and growth.
Canadian Journal of Fisheries and Aquatic Sciences
Vitenskapelig artikkel
-
Skoglund, Helge;
Einum, Sigurd;
Robertsen, Grethe.
(2011)
Competitive interactions shape offspring performance in relation to seasonal timing of emergence in Atlantic salmon.
Journal of Animal Ecology
Vitenskapelig artikkel
-
Kvingedal, Eli;
Einum, Sigurd.
(2011)
Prior residency advantage for Atlantic salmon in the wild: effects of habitat quality.
Behavioral Ecology and Sociobiology
Vitenskapelig artikkel
-
Martinussen, Pål Anders;
Robertsen, Grethe;
Einum, Sigurd.
(2011)
Density-dependent diet composition of juvenile Atlantic salmon (Salmo salar).
Ecology of Freshwater Fish
Vitenskapelig artikkel
-
Finstad, Anders Gravbrøt;
Einum, Sigurd;
Sættem, Leif Magnus;
Hellen, Bjart Are.
(2010)
Spatial distribution of Atlantic salmon (Salmo salar) breeders: among- and within-river variation and predicted consequences for offspring habitat availability.
Canadian Journal of Fisheries and Aquatic Sciences
Vitenskapelig artikkel
-
Foldvik, Anders;
Finstad, Anders Gravbrøt;
Einum, Sigurd.
(2010)
Relating juvenile spatial distribution to breeding patterns in anadromous salmonid populations.
Journal of Animal Ecology
Vitenskapelig artikkel
-
Finstad, AG;
Einum, Sigurd;
Ugedal, O;
Forseth, T.
(2009)
Spatial distribution of limited resources and local density regulation in juvenile Atlantic salmon.
Journal of Animal Ecology
Vitenskapelig artikkel
-
Sundt-Hansen, L;
Neregård, Lena;
Einum, Sigurd;
Höjesjö, Johan;
Björnsson, Björn T;
Hindar, Kjetil.
(2009)
Growth enhanced brown trout show increased movement activity in the wild.
Functional Ecology
Vitenskapelig artikkel
-
Yeates, SE;
Einum, Sigurd;
Fleming, IA;
Megens, HJ;
Stet, RJM;
Hindar, K.
(2009)
Atlantic salmon eggs favour sperm in competition that have similar major histocompatibility alleles.
Proceedings of the Royal Society of London. Biological Sciences
Vitenskapelig artikkel
-
Neregard, L;
Sundt-Hansen, L;
Hindar, K;
Einum, Sigurd;
Johnsson, JI;
Devlin, RH.
(2008)
Wild Atlantic salmon Salmo salar L. strains have greater growth potential than a domesticated strain selected for fast growth.
Journal of Fish Biology
Vitenskapelig artikkel
-
Einum, Sigurd;
Nislow, KH;
Reynolds, JD;
Sutherland, WJ.
(2008)
Predicting population responses to restoration of breeding habitat in Atlantic salmon.
Journal of Applied Ecology
Vitenskapelig artikkel
-
Einum, Sigurd;
Nislow, KH;
Mckelvey, S;
Armstrong, JD.
(2008)
Nest distribution shaping within-stream variation in Atlantic salmon juvenile abundance and competition over small spatial scales.
Journal of Animal Ecology
Vitenskapelig artikkel
-
Roberge, C;
Normandeau, E;
Einum, Sigurd;
Guderley, H;
Bernatchez, L.
(2008)
Genetic consequences of interbreeding between farmed and wild Atlantic salmon: insights from the transcriptome.
Molecular Ecology
Vitenskapelig artikkel
-
Einum, Sigurd;
Robertsen, Grethe;
Fleming, Ian A..
(2008)
Adaptive landscapes and density-dependent selection in declining salmonid populations: going beyond numerical responses to human disturbance.
Evolutionary Applications
Vitenskapelig oversiktsartikkel/review
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Sundt-Hansen, Line E.B.;
Sundstrom, F;
Einum, Sigurd;
Hindar, K;
Fleming, IA;
Devlin, RH.
(2007)
Genetically enhanced growth causes increased mortality in hypoxic environments.
Biology Letters
Vitenskapelig artikkel
-
Finstad, AG;
Einum, Sigurd;
Forseth, T;
Ugedal, O.
(2007)
Shelter availability affects behaviour, size-dependent and mean growth of juvenile Atlantic salmon.
Freshwater Biology
Vitenskapelig artikkel
Bøker
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Aas, Øystein;
Einum, Sigurd;
Klemetsen, Anders;
Skurdal, Jostein.
(2011)
Atlantic salmon ecology.
Blackwell Publishing
Blackwell Publishing
Vitenskapelig antologi/Konferanseserie
Del av bok/rapport
-
Einum, Sigurd;
Nislow, KH.
(2011)
Variation in population size through tiem and space: theory and recent empirical advances from Atlantic salmon.
Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
-
Fleming, Ian A.;
Einum, Sigurd.
(2011)
Reproductive ecology: a tale of two sexes.
Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
-
Aas, Øystein;
Policansky, David;
Einum, Sigurd;
Skurdal, Jostein.
(2011)
Salmon ecological research and conservation.
Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
Rapport
-
Forseth, Torbjørn;
Einum, Sigurd;
Fiske, Peder;
Falkegård, Morten;
Garmo, Øyvind Aaberg;
Garseth, Åse Helen.
(2024)
Metoder for vurdering av norske laksebestander i 2024.
Vitenskapelig råd for lakseforvaltning
Vitenskapelig råd for lakseforvaltning
Rapport
-
Forseth, Torbjørn;
Einum, Sigurd;
Fiske, Peder;
Falkegård, Morten;
Garmo, Øyvind Aaberg;
Garseth, Åse Helen.
(2024)
Status for norske laksebestander i 2024.
Vitenskapelig råd for lakseforvaltning
Vitenskapelig råd for lakseforvaltning
Rapport
-
Forseth, Torbjørn;
Einum, Sigurd;
Fiske, Peder;
Falkegård, Morten;
Garmo, Øyvind Aaberg;
Garseth, Åse Helen.
(2023)
Status for norske laksebestander i 2023.
Vitenskapelig råd for lakseforvaltning
Vitenskapelig råd for lakseforvaltning
Rapport
-
Falkegård, Morten;
Thorstad, Eva Bonsak;
Forseth, Torbjørn;
Einum, Sigurd;
Fiske, Peder;
Garmo, Øyvind Aaberg.
(2022)
Effekter av predasjon på laks.
Vitenskapelig råd for lakseforvaltning
Vitenskapelig råd for lakseforvaltning
Rapport
-
Forseth, Torbjørn;
Fiske, Peder;
Einum, Sigurd;
Falkegård, Morten;
Garmo, Øyvind Aaberg;
Garseth, Åse Helen.
(2022)
Klassifisering av tilstanden til sjøørret i 1279 vassdrag.
Vitenskapelig råd for lakseforvaltning
Vitenskapelig råd for lakseforvaltning
Rapport
-
Thorstad, Eva Bonsak;
Forseth, Torbjørn;
Fiske, Peder;
Einum, Sigurd;
Falkegård, Morten;
Garmo, Øyvind Aaberg.
(2022)
Status for norske laksebestander i 2022.
Vitenskapelig råd for lakseforvaltning
Vitenskapelig råd for lakseforvaltning
Rapport
-
Forseth, Torbjørn;
Fiske, Peder;
Einum, Sigurd;
Falkegård, Morten;
Garmo, Øyvind Aaberg;
Garseth, Åse Helen.
(2022)
Oppdatert status for små og sårbare laksebestander.
Vitenskapelig råd for lakseforvaltning
Vitenskapelig råd for lakseforvaltning
Rapport
-
Obrestad, Kathrine;
Vadstein, Olav;
Einum, Sigurd.
(2020)
The effect of gut microbiota on fitness in Daphnia magna.
NTNU
NTNU
Mastergradsoppgave
-
Forseth, Torbjørn;
Harby, Atle;
Ugedal, Ola;
Pulg, Ulrich;
Fjeldstad, Hans-Petter;
Robertsen, Grethe.
(2014)
Handbook for environmental design in regulated salmon rivers.
Norsk institutt for naturforskning
Norsk institutt for naturforskning
Rapport
-
Forseth, Torbjørn;
Harby, Atle;
Ugedal, Ola;
Pulg, Ulrich;
Fjeldstad, Hans-Petter;
Robertsen, Grethe.
(2013)
Håndbok for miljødesign i regulerte laksevassdrag.
Norsk institutt for naturforskning
Norsk institutt for naturforskning
Rapport
-
Einum, Sigurd;
Kenneth, Nygård.
(2012)
Movement and growth of European grayling Thymallus thymallus in two Norwegian rivers.
Norges teknisk-naturvitenskapelige universitet
Norges teknisk-naturvitenskapelige universitet
Mastergradsoppgave
-
Einum, Sigurd;
Klausen, Torstein Rød.
(2012)
Population regulation in the tadpole shrimp Lepidurus arcticus.
Norges teknisk-naturvitenskapelige universitet
Norges teknisk-naturvitenskapelige universitet
Mastergradsoppgave
-
Bentsen, Vidar;
Berg, Ole Kristian;
Einum, Sigurd.
(2011)
Desnity dependent habitat use of Atlantic salmon, Salmo salar L.- stranding in hydropower rivers.
Norges teknisk-naturvitenskapelige universitet
Norges teknisk-naturvitenskapelige universitet
Mastergradsoppgave
-
Teichert, Maxim A.K.;
Einum, Sigurd.
(2011)
Regulation in Atlantic salmon (Salmo salar): The interaction between habitat and density.
Norges teknisk-naturvitenskapelige universitet
Doktoravhandlinger ved NTNU, 1503-8181 (2011:138)
Doktorgradsavhandling
-
Hamnes, Froydis Bolme;
Einum, Sigurd;
Berg, Ole Kristian.
(2011)
Size-dependent habitat use in juvenile Atlantic salmon (Salmo salar L.).
Norges teknisk-naturvitenskapelige universitet
Norges teknisk-naturvitenskapelige universitet
Mastergradsoppgave
-
Martinussen, Pål Anders;
Einum, Sigurd;
Robertsen, Grethe.
(2010)
Density-dependent diet composition of juvenile Atlantic salmon (Salmo salar).
NTNU, Institutt for biologi
NTNU, Institutt for biologi
Mastergradsoppgave
-
Foldvik, Anders;
Einum, Sigurd.
(2008)
Relating juvenile spatial distribution to breeding patterns in anadromous salmonid populations.
NTNU, Institutt for biologi
NTNU, Institutt for biologi
Mastergradsoppgave
-
Berg, Marius;
Einum, Sigurd.
(2008)
Er beskatning av Atlantisk laks selektiv med hensyn på innvandringstidspunkt og størrelse?.
NTNU, Institutt for biologi
NTNU, Institutt for biologi
Mastergradsoppgave
Undervisning
Emner
Formidling
2024
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Vitenskapelig foredragPedersen, Frode; Willmes, Malte; Berntsen, Henrik; Thorstad, Eva Bonsak; Einum, Sigurd. (2024) Prevalence of vaterite in invasive pink salmon otoliths. 154th Annual Meeting of the American Fisheries Society Annual Meeting , Honolulu, HI 15.09.2024 - 21.09.2024
2020
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IntervjuBrandslet, Steinar; Issa, Semona; Einum, Sigurd. (2020) Vannlopper på lykkepiller fikk flere barn. Gemini.no Gemini.no [null] 20.10.2020
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PosterRaunsgard, Astrid; Czorlich, Yann; Thorstad, Eva Bonsak; Einum, Sigurd; Fiske, Peder; Bolstad, Geir Hysing. (2020) Evolution of maturation reaction norms along a life-history gradient in Atlantic salmon. The Evolutionary Demography Society's 7th Annual Meeting , Røros 06.10.2020 - 11.10.2020
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Vitenskapelig foredragRaunsgard, Astrid; Czorlich, Yann; Thorstad, Eva Bonsak; Einum, Sigurd; Fiske, Peder; Bolstad, Geir Hysing. (2020) Evolution of maturation reaction norms along a life-history gradient in Atlantic salmon. The Evolutionary Demography Society's 7th Annual Meeting , Røros 06.10.2020 - 11.10.2020
2019
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Faglig foredragEinum, Sigurd; Kielland, Øystein Nordeide; Bech, Claus. (2019) Warm and out of breath: thermal phenotypic plasticity in oxygen supply. Society for Experimental Biology Conference , Sevilla 30.06.2019 -
2018
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Vitenskapelig foredragRobertsen, Grethe; Reid, Donald; Einum, Sigurd; Aronsen, Tonje; Fleming, Ian A.; Sundt-Hansen, Line Elisabeth Breivik. (2018) Can metabolic rate explain context-dependent performance of farmed salmon?. OIKOS 2018 , Trondheim 19.02.2018 - 22.02.2018
2017
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Faglig foredragEinum, Sigurd. (2017) Smaller when warmer, but how much? A quantitative model for oxygen availability driving the temperature-size rule. Norwegian Ecological Society conference 12.01.2017 - 13.01.2017
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Vitenskapelig foredragFossen, Erlend Ignacio; Raeymaekers, Joost A. M.; Einum, Sigurd. (2017) Predicting the onset of winter: genetic variance in optimism in Daphnia. 3rd Conference of the Norwegian Ecological Society , University of Oslo 12.01.2017 - 13.01.2017
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Vitenskapelig foredragKielland, Øystein Nordeide; Bech, Claus; Einum, Sigurd. (2017) Thermal transgenerational plasticity in Daphnia pulex. 11th Symposium on Cladocera , Kulmbach 25.09.2017 - 29.09.2017
2016
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Vitenskapelig foredragFossen, Erlend Ignacio; Pelabon, Christophe; Einum, Sigurd. (2016) Potential for evolution of thermal reaction norms. Nordic OIKOS conference 2016 , Turku 02.02.2016 - 04.02.2016
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Faglig foredragEinum, Sigurd. (2016) Keeping water clean: a big job for small girls?. Mysterium tremendum , NTNU UB Realfagbiblioteket 16.11.2016 - 16.11.2016
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Vitenskapelig foredragRobertsen, Grethe; Sundt-Hansen, Line Elisabeth Breivik; Hindar, Kjetil; Karlsson, Sten; Reid, Donald; Einum, Sigurd. (2016) Tilstedeværelse av oppdrettslaks i naturen kan øke dødelighet hos villaksyngel. Havbruk2016 , Bodø 18.04.2016 - 20.04.2016
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Faglig foredragKielland, Øystein Nordeide; Bech, Claus; Einum, Sigurd. (2016) No evidence for adaptive thermal transgenerational plasticity in metabolism of an ectotherm (Daphnia pulex), when minimizing the potential for confounding effects. Nordic Oikos , Department of Biology, University of Turku 02.02.2016 - 04.02.2016
2015
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Vitenskapelig foredragBerg, Ole Kristian; Puffer, Michael; Huusko, Ari; Vehanen, Teppo; Einum, Sigurd. (2015) Effect of competition and hydropeaking on growth of juvenile Atlantic salmon (Salmo salar). Advances in the population ecology of stream salmonids IV , University of Girona 25.05.2015 - 29.05.2015
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Vitenskapelig foredragKvingedal, Eli; Robertsen, Grethe; Burton, Tim; Sandvik, Guro Katrine; Einum, Sigurd; Hindar, Kjetil. (2015) Activity pattern of farmed and wild Atlantic salmon offspring: Does environmental complexity matter?. Advances in the Population Ecology of Stream Salmonids , Girona 25.05.2015 - 29.05.2015
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Vitenskapelig foredragRobertsen, Grethe; Kvingedal, Eli; Burton, Tim; Sandvik, Guro Katrine; Einum, Sigurd; Hindar, Kjetil. (2015) Does the outcome of competition between offspring of wild and farmed Atlantic salmon depend on river substrate and/or individual metabolic rate?. Advances in the Population Ecology of Stream Salmonids , Girona 25.05.2015 - 29.05.2015
2014
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Vitenskapelig foredragPuffer, Michael; Berg, Ole Kristian; Husko, Ari; Vehanen, Teppo; Einum, Sigurd; Forseth, Torbjørn. (2014) Seasonal effects of hydropeaking on growth, energetics and movement on juvenile Atlantic salmon. 10th International Symposium on Ecohydraulics (ISE 2014) , Trondheim 23.06.2014 - 27.06.2014
2013
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IntervjuEinum, Sigurd; Brandslet, Steinar. (2013) Små krepsdyr er tilpasningsdyktige. http://gemini.no/2013/11/sma-krepsdyr-er-tilpasningsdyktige/ http://gemini.no/2013/11/sma-krepsdyr-er-tilpasningsdyktige/ [null] 22.11.2013
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Vitenskapelig foredragRobertsen, Grethe; Armstrong, J.D.; Nislow, Keith H.; Herfindal, Ivar; McKelvey, S.; Einum, Sigurd. (2013) Spatial variation in the relationship between performance and metabolic rate in wild juvenile Atlantic salmon. Oral presentation. SEB Valencia , Valencia 03.07.2013 - 06.07.2013
2012
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IntervjuMeland, Svein Inge; Einum, Sigurd. (2012) Må overtale sta laks. Adresseavisen Adresseavisen [null] 22.03.2012
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Vitenskapelig foredragEinum, Sigurd. (2012) Why non-spatial approaches may (sometimes) be inappropriate for modelling habitat effects on populations. Oikos annual meeting 31.01.2012 - 02.02.2012
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Vitenskapelig foredragEinum, Sigurd. (2012) Ecological modeling of optimal metabolic rates. Seminar , University of Lausanne 07.12.2012 - 07.12.2012
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Vitenskapelig foredragEinum, Sigurd. (2012) Sex, space and density dependence: why non-spatial approaches may be inappropriate for modeling habitat effects on populations. Nowpas annual meeting 2012 22.03.2012 - 25.03.2012
2011
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Intervju
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Vitenskapelig foredrag
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Vitenskapelig foredragEinum, Sigurd. (2011) Consequences of spatial within-population structure. Universitetsseminar , Glasgow 05.12.2011 - 05.12.2011
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Vitenskapelig foredragEinum, Sigurd. (2011) Spatial ecology of salmonids. Universitets-seminar , Lausanne 23.06.2011 - 23.06.2011
2010
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Intervju
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Vitenskapelig foredragEinum, Sigurd. (2010) Competition from recruits on an older cohort of Atlantic salmon. Advances in the population ecology of stream salmonids , Luarca 17.05.2010 - 20.05.2010
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Intervju
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PosterEinum, Sigurd. (2010) Linking spatial breeding behaviour and spatio-temporal variation in Atlantic salmon productivity. Norwegian Research Council program conference , Oslo 16.02.2010 - 17.02.2010
2008
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Vitenskapelig foredragEinum, Sigurd. (2008) Spatial considerations for Atlantic salmon production. Spawning target workshop 24.04.2008 - 25.04.2008
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Vitenskapelig foredragEinum, Sigurd. (2008) Density dependent population regulation in Atlantic salmon: spatial considerations. Energibedriftenes Landsforening Fiskesymposium 09.02.2008 - 10.02.2008
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Vitenskapelig foredragEinum, Sigurd. (2008) Tetthethsavhengighet hos laks - årsaker og konsekvenser. Norges Forskningsråd program konferanse 18.11.2008 - 19.11.2008
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Vitenskapelig foredragEinum, Sigurd. (2008) Non-ideal distributions and their population consequences. Bern University Seminar 11.11.2008 - 11.11.2008
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IntervjuMonsen, Tor; Einum, Sigurd. (2008) Snart slutt på ren villaks?. http://forskning.no/artikler/2008/februar/1203431748.73 http://forskning.no/artikler/2008/februar/1203431748.73 [null] 21.02.2008
2007
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Vitenskapelig foredragEinum, Sigurd. (2007) Population consequences of spatial breeding distributions. Centre for Ecological and Evolutionary Synthesis seminar 08.11.2007 -
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Vitenskapelig foredragEinum, Sigurd. (2007) Water discharge: effects on fish production. Envidorr project seminar 30.08.2007 -
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Vitenskapelig foredragEinum, Sigurd. (2007) Egg size variation: what is it good for?. Department seminar , Trondheim 01.02.2007 -