Sigurd Einum
About
Centre for Biodiversity Dynamics | Freshwater Ecology Group
Links between evolution/epigenetics and population dynamics
A fundamental aim in ecology is to understand how organisms respond to changing environmental conditions. Empirical studies typically focus on direct effects on phenotypes through movement along reaction norms and corresponding effects on demographic rates and population dynamics, or on evolutionary/epigenetic changes in the shape of reaction norms. Yet, it is becoming increasingly clear that feedback between reaction norm shapes and population dynamics may substantially influence biological outcomes. Including such feedback mechanisms between these two processes provides great promise in advancing understanding of evolutionary and ecological dynamics, but is inherently challenging, and choice of suitable model systems are crucial for success. In our lab we are currently approaching these problems using Daphnia (D. magna) as a model organism, where we aim to quantify variation in both life history traits and population dynamics caused by exogenous (i.e. environment) and endogenous variables (i.e. acclimation, epigenetic effects, genetic variation). 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.
Daphnia are famous for their high degree of phenotypic plasticitiy, with the presence of predators inducing production of a helmet-shaped carapace (right below)
Spatial ecology
Plants and other sessile organisms are commonly observed to vary in their population density over small spatial scales within single populations. For mobile organisms, such variation is commonly assumed to be minimized due to the ability to disperse away from patches of high density. Yet, even for such organisms (e.g. insects, fish), density has been shown to vary over surprisingly small spatial scales. This may have important consequences for mean levels of and within-population variation in competition intensity, population dynamics, and perhaps even evolutionary processes. Much of my recent research has focused on the issue of how the spatial distribution of individuals and resources within populations translates into population-level effects, using Atlantic salmon as a model organism.
Maternal effects
Maternal effects can be defined as phenotypic variation in the offspring generation caused by genetically or environmentally induced phenotypic variation (i.e. maternal traits) in the maternal generation. One of my long-term scientific interests has been to understand the evolutionary dynamics of and empirically test theories underlying the spatiotemporal variation in maternal traits (in particular, breeding time and egg size). This has been accomplished through a series of small and large scale experiments (using salmonids) combined with comparative studies of fish. These studies have provided evidence for a causal effect of these traits on the fitness of juveniles. Furthermore, the effect of such traits on juvenile performance depends on environmental quality, suggesting a scope for local adaptations to occur among populations, but also for adaptive variation to occur within populations.
Divergence of wild and cultured fish
Billions of cultured fish are released intentionally or accidentally into nature each year, and biologists have for a long time been concerned about the effects such releases can have on wild fish populations. We have quantified experimentally and through meta-analyses to what degree and why cultured fish differ from wild ones. These studies have identified genetic divergence to occur in fitness related quantitative traits as well as in gene expression patterns between wild and cultured fish, and a high potential for interbreeding between wild and cultured fish. The results of this work indicate that inappropriate management using cultured fish and invasions of escaped farmed fish has the potential to negatively impact the productivity and genetic integrity of wild populations, and thus their long-term viability.
Publications
2023
-
Forseth, Torbjørn;
Einum, Sigurd;
Fiske, Peder;
Falkegård, Morten;
Garmo, Øyvind Aaberg;
Garseth, Åse Helen.
(2023)
Status for norske laksebestander i 2023.
Rapport fra Vitenskapelig råd for lakseforvaltning (18)
Report
-
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
Academic article
-
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
Academic article
2022
-
Falkegård, Morten;
Thorstad, Eva Bonsak;
Forseth, Torbjørn;
Einum, Sigurd;
Fiske, Peder;
Garmo, Øyvind Aaberg.
(2022)
Effekter av predasjon på laks
.
Temarapport fra Vitenskapelig råd for lakseforvaltning (8)
Report
-
Forseth, Torbjørn;
Fiske, Peder;
Einum, Sigurd;
Falkegård, Morten;
Garmo, Øyvind Aaberg;
Garseth, Åse Helen.
(2022)
Klassifisering av tilstanden til sjøørret i 1279 vassdrag.
Temarapport fra Vitenskapelig råd for lakseforvaltning (9)
Report
-
Thorstad, Eva Bonsak;
Forseth, Torbjørn;
Fiske, Peder;
Einum, Sigurd;
Falkegård, Morten;
Garmo, Øyvind Aaberg.
(2022)
Status for norske laksebestander i 2022.
Rapport fra Vitenskapelig råd for lakseforvaltning (17)
Report
-
Forseth, Torbjørn;
Fiske, Peder;
Einum, Sigurd;
Falkegård, Morten;
Garmo, Øyvind Aaberg;
Garseth, Åse Helen.
(2022)
Oppdatert status for små og sårbare laksebestander.
Temarapport fra Vitenskapelig råd for lakseforvaltning (10)
Report
-
Einum, Sigurd;
Ullern, Emil R.;
Walsh, Matthew;
Burton, Tim.
(2022)
Evolution of population dynamics following invasion by a non-native predator.
Ecology and Evolution
Academic article
-
Einum, Sigurd;
Burton, Tim.
(2022)
Divergence in rates of phenotypic plasticity among ectotherms.
Ecology Letters
Academic article
-
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
Academic article
-
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
Academic article
-
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
Academic article
-
Burton, Tim;
Ratikainen, Irja Ida;
Einum, Sigurd.
(2022)
Environmental change and the rate of phenotypic plasticity.
Global Change Biology
Academic article
-
Issa, Semona;
Chaabani, Safa;
Asimakopoulos, Alexandros;
Jaspers, Veerle;
Einum, Sigurd.
(2022)
Maternal dopamine exposure provides offspring starvation resistance in Daphnia.
Ecology and Evolution
Academic article
-
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
Academic article
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
Academic article
-
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
Academic article
-
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
Academic article
-
Einum, Sigurd;
Bech, Claus;
Kielland, Øystein Nordeide.
(2021)
Quantitative mismatch between empirical temperature-size rule slopes and predictions based on oxygen limitation.
Scientific Reports
Academic article
2020
-
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
Academic article
-
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
Academic article
-
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
Academic article
-
Obrestad, Kathrine;
Vadstein, Olav;
Einum, Sigurd.
(2020)
The effect of gut microbiota on fitness in Daphnia magna.
NTNU
Masters thesis
-
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
Academic article
-
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
Academic article
2019
-
Kielland, Øystein Nordeide;
Bech, Claus;
Einum, Sigurd.
(2019)
Warm and out of breath: thermal phenotypic plasticity in oxygen supply.
Functional Ecology
Academic article
-
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
Academic article
-
Burton, Tim;
Lakka, Hanna-Kaisa;
Einum, Sigurd.
(2019)
Measuring phenotypes in fluctuating environments.
Functional Ecology
Academic article
-
Einum, Sigurd;
Ratikainen, Irja Ida;
Wright, Jonathan;
Pelabon, Christophe;
Bech, Claus;
Jutfelt, Fredrik.
(2019)
How to quantify thermal acclimation capacity?.
Global Change Biology
Academic article
-
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
Academic article
-
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
Academic article
2018
-
Burton, Tim;
Zeis, Bettina;
Einum, Sigurd.
(2018)
Automated measurement of upper thermal limits in small aquatic animals.
Journal of Experimental Biology
Academic article
-
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
Academic article
-
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
Academic article
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
Academic article
-
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
Academic article
-
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
Academic article
-
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
Academic article
-
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
Academic article
-
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
Academic article
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
Academic article
-
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
Academic article
2015
-
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
Academic article
-
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).
Rivers Research and Applications: an international journal devoted to river research and management
Academic article
-
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
Academic article
-
Sereni, Laura;
Einum, Sigurd.
(2015)
No Evidence for Activity Adjustment in Response to Increased Density in Daphnia magna.
PLOS ONE
Academic article
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
Academic article
-
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
Academic article
-
Forseth, Torbjørn;
Harby, Atle;
Ugedal, Ola;
Pulg, Ulrich;
Fjeldstad, Hans-Petter;
Robertsen, Grethe.
(2014)
Handbook for environmental design in regulated salmon rivers.
NINA temahefte (53)
Report
-
Einum, Sigurd.
(2014)
Ecological modeling of metabolic rates predicts diverging optima across food abundances.
The American Naturalist
Academic article
2013
-
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
Academic article
-
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
Academic article
-
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
Academic article
-
Forseth, Torbjørn;
Harby, Atle;
Ugedal, Ola;
Pulg, Ulrich;
Fjeldstad, Hans-Petter;
Robertsen, Grethe.
(2013)
Håndbok for miljødesign i regulerte laksevassdrag.
NINA temahefte (52)
Report
-
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
Academic article
2012
-
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
Academic article
-
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
Academic article
-
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
Reader opinion piece
-
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
Academic article
-
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
Academic article
-
Einum, Sigurd;
Kenneth, Nygård.
(2012)
Movement and growth of European grayling Thymallus thymallus in two Norwegian rivers.
NTNU
Masters thesis
-
Einum, Sigurd;
Klausen, Torstein Rød.
(2012)
Population regulation in the tadpole shrimp Lepidurus arcticus.
NTNU
Masters thesis
2011
-
Aas, Øystein;
Einum, Sigurd;
Klemetsen, Anders;
Skurdal, Jostein.
(2011)
Atlantic salmon ecology.
Blackwell Publishing
Blackwell Publishing
Academic anthology/Conference proceedings
-
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
Academic article
-
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
Academic article
-
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
Academic article
-
Kvingedal, Eli;
Einum, Sigurd.
(2011)
Intracohort and intercohort spatial density dependence in juvenile brown trout (Salmo trutta).
Canadian Journal of Fisheries and Aquatic Sciences
Academic article
-
Hamnes, Froydis Bolme;
Einum, Sigurd;
Berg, Ole Kristian.
(2011)
Size-dependent habitat use in juvenile Atlantic salmon (Salmo salar L.).
NTNU, Department of Biology
Masters thesis
-
Kvingedal, Eli;
Einum, Sigurd.
(2011)
Prior residency advantage for Atlantic salmon in the wild: effects of habitat quality.
Behavioral Ecology and Sociobiology
Academic article
-
Martinussen, Pål Anders;
Robertsen, Grethe;
Einum, Sigurd.
(2011)
Density-dependent diet composition of juvenile Atlantic salmon (Salmo salar).
Ecology of Freshwater Fish
Academic article
-
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
Academic article
-
Bentsen, Vidar;
Berg, Ole Kristian;
Einum, Sigurd.
(2011)
Density dependent habitat use of Atlantic salmon, Salmo salar L: stranding in hydropower rivers.
Institutt for biologi
Thesis at a second degree level
-
Einum, Sigurd;
Nislow, KH.
(2011)
Variation in population size through tiem and space: theory and recent empirical advances from Atlantic salmon.
Blackwell Publishing
Academic chapter/article/Conference paper
-
Fleming, Ian A.;
Einum, Sigurd.
(2011)
Reproductive ecology: a tale of two sexes.
Blackwell Publishing
Academic chapter/article/Conference paper
-
Aas, Øystein;
Policansky, David;
Einum, Sigurd;
Skurdal, Jostein.
(2011)
Salmon ecological research and conservation.
Blackwell Publishing
Academic chapter/article/Conference paper
-
Einum, Sigurd;
Nislow, KH;
Mckelvey, S;
Armstrong, JD.
(2011)
The spatial scale of competition from recruits on an older cohort in Atlantic salmon.
Oecologia
Academic article
-
Teichert, Maxim A.K.;
Einum, Sigurd.
(2011)
Regulation in Atlantic salmon (Salmo salar): The interaction between habitat and density.
NTNU, Institutt for biologi
Doctoral dissertation
-
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
Academic article
-
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
Academic article
2010
-
Martinussen, Pål Anders;
Einum, Sigurd;
Robertsen, Grethe.
(2010)
Density-dependent diet composition of juvenile Atlantic salmon (Salmo salar).
NTNU, Institutt for biologi
Masters thesis
-
Foldvik, Anders;
Finstad, Anders Gravbrøt;
Einum, Sigurd.
(2010)
Relating juvenile spatial distribution to breeding patterns in anadromous salmonid populations.
Journal of Animal Ecology
Academic article
-
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
Academic article
2009
-
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
Academic article
-
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
Academic article
-
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
Academic article
2008
-
Foldvik, Anders;
Einum, Sigurd.
(2008)
Relating juvenile spatial distribution to breeding patterns in anadromous salmonid populations.
NTNU, Institutt for biologi
Masters thesis
-
Berg, Marius;
Einum, Sigurd.
(2008)
Er beskatning av Atlantisk laks selektiv med hensyn på innvandringstidspunkt og størrelse?.
NTNU, Institutt for biologi
Masters thesis
-
Einum, Sigurd;
Nislow, KH;
Reynolds, JD;
Sutherland, WJ.
(2008)
Predicting population responses to restoration of breeding habitat in Atlantic salmon.
Journal of Applied Ecology
Academic article
-
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
Academic article
-
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
Academic article
-
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
Academic literature review
-
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
Academic article
2007
-
Finstad, AG;
Einum, Sigurd;
Forseth, T;
Ugedal, O.
(2007)
Shelter availability affects behaviour, size-dependent and mean growth of juvenile Atlantic salmon.
Freshwater Biology
Academic article
-
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
Academic article
Journal publications
-
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
Academic article
-
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
Academic article
-
Einum, Sigurd;
Ullern, Emil R.;
Walsh, Matthew;
Burton, Tim.
(2022)
Evolution of population dynamics following invasion by a non-native predator.
Ecology and Evolution
Academic article
-
Einum, Sigurd;
Burton, Tim.
(2022)
Divergence in rates of phenotypic plasticity among ectotherms.
Ecology Letters
Academic article
-
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
Academic article
-
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
Academic article
-
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
Academic article
-
Burton, Tim;
Ratikainen, Irja Ida;
Einum, Sigurd.
(2022)
Environmental change and the rate of phenotypic plasticity.
Global Change Biology
Academic article
-
Issa, Semona;
Chaabani, Safa;
Asimakopoulos, Alexandros;
Jaspers, Veerle;
Einum, Sigurd.
(2022)
Maternal dopamine exposure provides offspring starvation resistance in Daphnia.
Ecology and Evolution
Academic article
-
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
Academic article
-
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
Academic article
-
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
Academic article
-
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
Academic article
-
Einum, Sigurd;
Bech, Claus;
Kielland, Øystein Nordeide.
(2021)
Quantitative mismatch between empirical temperature-size rule slopes and predictions based on oxygen limitation.
Scientific Reports
Academic article
-
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
Academic article
-
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
Academic article
-
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
Academic article
-
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
Academic article
-
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
Academic article
-
Kielland, Øystein Nordeide;
Bech, Claus;
Einum, Sigurd.
(2019)
Warm and out of breath: thermal phenotypic plasticity in oxygen supply.
Functional Ecology
Academic article
-
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
Academic article
-
Burton, Tim;
Lakka, Hanna-Kaisa;
Einum, Sigurd.
(2019)
Measuring phenotypes in fluctuating environments.
Functional Ecology
Academic article
-
Einum, Sigurd;
Ratikainen, Irja Ida;
Wright, Jonathan;
Pelabon, Christophe;
Bech, Claus;
Jutfelt, Fredrik.
(2019)
How to quantify thermal acclimation capacity?.
Global Change Biology
Academic article
-
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
Academic article
-
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
Academic article
-
Burton, Tim;
Zeis, Bettina;
Einum, Sigurd.
(2018)
Automated measurement of upper thermal limits in small aquatic animals.
Journal of Experimental Biology
Academic article
-
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
Academic article
-
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
Academic article
-
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
Academic article
-
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
Academic article
-
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
Academic article
-
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
Academic article
-
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
Academic article
-
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
Academic article
-
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
Academic article
-
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
Academic article
-
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
Academic article
-
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).
Rivers Research and Applications: an international journal devoted to river research and management
Academic article
-
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
Academic article
-
Sereni, Laura;
Einum, Sigurd.
(2015)
No Evidence for Activity Adjustment in Response to Increased Density in Daphnia magna.
PLOS ONE
Academic article
-
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
Academic article
-
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
Academic article
-
Einum, Sigurd.
(2014)
Ecological modeling of metabolic rates predicts diverging optima across food abundances.
The American Naturalist
Academic article
-
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
Academic article
-
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
Academic article
-
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
Academic article
-
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
Academic article
-
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
Academic article
-
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
Academic article
-
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
Reader opinion piece
-
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
Academic article
-
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
Academic article
-
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
Academic article
-
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
Academic article
-
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
Academic article
-
Kvingedal, Eli;
Einum, Sigurd.
(2011)
Intracohort and intercohort spatial density dependence in juvenile brown trout (Salmo trutta).
Canadian Journal of Fisheries and Aquatic Sciences
Academic article
-
Kvingedal, Eli;
Einum, Sigurd.
(2011)
Prior residency advantage for Atlantic salmon in the wild: effects of habitat quality.
Behavioral Ecology and Sociobiology
Academic article
-
Martinussen, Pål Anders;
Robertsen, Grethe;
Einum, Sigurd.
(2011)
Density-dependent diet composition of juvenile Atlantic salmon (Salmo salar).
Ecology of Freshwater Fish
Academic article
-
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
Academic article
-
Einum, Sigurd;
Nislow, KH;
Mckelvey, S;
Armstrong, JD.
(2011)
The spatial scale of competition from recruits on an older cohort in Atlantic salmon.
Oecologia
Academic article
-
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
Academic article
-
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
Academic article
-
Foldvik, Anders;
Finstad, Anders Gravbrøt;
Einum, Sigurd.
(2010)
Relating juvenile spatial distribution to breeding patterns in anadromous salmonid populations.
Journal of Animal Ecology
Academic article
-
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
Academic article
-
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
Academic article
-
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
Academic article
-
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
Academic article
-
Einum, Sigurd;
Nislow, KH;
Reynolds, JD;
Sutherland, WJ.
(2008)
Predicting population responses to restoration of breeding habitat in Atlantic salmon.
Journal of Applied Ecology
Academic article
-
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
Academic article
-
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
Academic article
-
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
Academic literature review
-
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
Academic article
-
Finstad, AG;
Einum, Sigurd;
Forseth, T;
Ugedal, O.
(2007)
Shelter availability affects behaviour, size-dependent and mean growth of juvenile Atlantic salmon.
Freshwater Biology
Academic article
-
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
Academic article
Books
-
Aas, Øystein;
Einum, Sigurd;
Klemetsen, Anders;
Skurdal, Jostein.
(2011)
Atlantic salmon ecology.
Blackwell Publishing
Blackwell Publishing
Academic anthology/Conference proceedings
Part of book/report
-
Einum, Sigurd;
Nislow, KH.
(2011)
Variation in population size through tiem and space: theory and recent empirical advances from Atlantic salmon.
Blackwell Publishing
Academic chapter/article/Conference paper
-
Fleming, Ian A.;
Einum, Sigurd.
(2011)
Reproductive ecology: a tale of two sexes.
Blackwell Publishing
Academic chapter/article/Conference paper
-
Aas, Øystein;
Policansky, David;
Einum, Sigurd;
Skurdal, Jostein.
(2011)
Salmon ecological research and conservation.
Blackwell Publishing
Academic chapter/article/Conference paper
Report
-
Forseth, Torbjørn;
Einum, Sigurd;
Fiske, Peder;
Falkegård, Morten;
Garmo, Øyvind Aaberg;
Garseth, Åse Helen.
(2023)
Status for norske laksebestander i 2023.
Rapport fra Vitenskapelig råd for lakseforvaltning (18)
Report
-
Falkegård, Morten;
Thorstad, Eva Bonsak;
Forseth, Torbjørn;
Einum, Sigurd;
Fiske, Peder;
Garmo, Øyvind Aaberg.
(2022)
Effekter av predasjon på laks
.
Temarapport fra Vitenskapelig råd for lakseforvaltning (8)
Report
-
Forseth, Torbjørn;
Fiske, Peder;
Einum, Sigurd;
Falkegård, Morten;
Garmo, Øyvind Aaberg;
Garseth, Åse Helen.
(2022)
Klassifisering av tilstanden til sjøørret i 1279 vassdrag.
Temarapport fra Vitenskapelig råd for lakseforvaltning (9)
Report
-
Thorstad, Eva Bonsak;
Forseth, Torbjørn;
Fiske, Peder;
Einum, Sigurd;
Falkegård, Morten;
Garmo, Øyvind Aaberg.
(2022)
Status for norske laksebestander i 2022.
Rapport fra Vitenskapelig råd for lakseforvaltning (17)
Report
-
Forseth, Torbjørn;
Fiske, Peder;
Einum, Sigurd;
Falkegård, Morten;
Garmo, Øyvind Aaberg;
Garseth, Åse Helen.
(2022)
Oppdatert status for små og sårbare laksebestander.
Temarapport fra Vitenskapelig råd for lakseforvaltning (10)
Report
-
Obrestad, Kathrine;
Vadstein, Olav;
Einum, Sigurd.
(2020)
The effect of gut microbiota on fitness in Daphnia magna.
NTNU
Masters thesis
-
Forseth, Torbjørn;
Harby, Atle;
Ugedal, Ola;
Pulg, Ulrich;
Fjeldstad, Hans-Petter;
Robertsen, Grethe.
(2014)
Handbook for environmental design in regulated salmon rivers.
NINA temahefte (53)
Report
-
Forseth, Torbjørn;
Harby, Atle;
Ugedal, Ola;
Pulg, Ulrich;
Fjeldstad, Hans-Petter;
Robertsen, Grethe.
(2013)
Håndbok for miljødesign i regulerte laksevassdrag.
NINA temahefte (52)
Report
-
Einum, Sigurd;
Kenneth, Nygård.
(2012)
Movement and growth of European grayling Thymallus thymallus in two Norwegian rivers.
NTNU
Masters thesis
-
Einum, Sigurd;
Klausen, Torstein Rød.
(2012)
Population regulation in the tadpole shrimp Lepidurus arcticus.
NTNU
Masters thesis
-
Hamnes, Froydis Bolme;
Einum, Sigurd;
Berg, Ole Kristian.
(2011)
Size-dependent habitat use in juvenile Atlantic salmon (Salmo salar L.).
NTNU, Department of Biology
Masters thesis
-
Bentsen, Vidar;
Berg, Ole Kristian;
Einum, Sigurd.
(2011)
Density dependent habitat use of Atlantic salmon, Salmo salar L: stranding in hydropower rivers.
Institutt for biologi
Thesis at a second degree level
-
Teichert, Maxim A.K.;
Einum, Sigurd.
(2011)
Regulation in Atlantic salmon (Salmo salar): The interaction between habitat and density.
NTNU, Institutt for biologi
Doctoral dissertation
-
Martinussen, Pål Anders;
Einum, Sigurd;
Robertsen, Grethe.
(2010)
Density-dependent diet composition of juvenile Atlantic salmon (Salmo salar).
NTNU, Institutt for biologi
Masters thesis
-
Foldvik, Anders;
Einum, Sigurd.
(2008)
Relating juvenile spatial distribution to breeding patterns in anadromous salmonid populations.
NTNU, Institutt for biologi
Masters thesis
-
Berg, Marius;
Einum, Sigurd.
(2008)
Er beskatning av Atlantisk laks selektiv med hensyn på innvandringstidspunkt og størrelse?.
NTNU, Institutt for biologi
Masters thesis
Teaching
Courses
Media
2020
-
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 Centre for Biodiversity Dynamics, NTNU The Evolutionary Demography Society's 7th Annual Meeting , Røros 2020-10-06 - 2020-10-11
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Academic lectureRaunsgard, 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 Centre for Biodiversity Dynamics, NTNU The Evolutionary Demography Society's 7th Annual Meeting , Røros 2020-10-06 - 2020-10-11
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InterviewBrandslet, Steinar; Issa, Semona; Einum, Sigurd. (2020) Vannlopper på lykkepiller fikk flere barn. Gemini.no Gemini.no [Internet] 2020-10-20
2019
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LectureEinum, Sigurd; Kielland, Øystein Nordeide; Bech, Claus. (2019) Warm and out of breath: thermal phenotypic plasticity in oxygen supply. Society for Experimental Biology Conference , Sevilla 2019-06-30 -
2018
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Academic lectureRobertsen, 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?. NTNU OIKOS 2018 , Trondheim 2018-02-19 - 2018-02-22
2017
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LectureEinum, Sigurd. (2017) Smaller when warmer, but how much? A quantitative model for oxygen availability driving the temperature-size rule. Norwegian Ecological Society conference 2017-01-12 - 2017-01-13
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Academic lectureFossen, Erlend Ignacio; Raeymaekers, Joost A. M.; Einum, Sigurd. (2017) Predicting the onset of winter: genetic variance in optimism in Daphnia. The Centre for Ecological and Evolutionary Synthesis (CEES) 3rd Conference of the Norwegian Ecological Society , University of Oslo 2017-01-12 - 2017-01-13
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Academic lectureKielland, Øystein Nordeide; Bech, Claus; Einum, Sigurd. (2017) Thermal transgenerational plasticity in Daphnia pulex. University of Bayreuth 11th Symposium on Cladocera , Kulmbach 2017-09-25 - 2017-09-29
2016
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Academic lectureRobertsen, 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. Norges Forskningsråd Havbruk2016 , Bodø 2016-04-18 - 2016-04-20
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Popular scientific lectureEinum, Sigurd. (2016) Keeping water clean: a big job for small girls?. NTNU UB Realfagbiblioteket og Institutt for Biologi Mysterium tremendum , NTNU UB Realfagbiblioteket 2016-11-16 - 2016-11-16
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LectureKielland, 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, Oikos Finland Nordic Oikos , Department of Biology, University of Turku 2016-02-02 - 2016-02-04
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Academic lectureFossen, Erlend Ignacio; Pelabon, Christophe; Einum, Sigurd. (2016) Potential for evolution of thermal reaction norms. University of Turku Nordic OIKOS conference 2016 , Turku 2016-02-02 - 2016-02-04
2015
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Academic lectureBerg, 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 2015-05-25 - 2015-05-29
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Academic lectureKvingedal, 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 2015-05-25 - 2015-05-29
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Academic lectureRobertsen, 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 2015-05-25 - 2015-05-29
2014
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Academic lecturePuffer, 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. CEDREN / Norwegian University of Science and Technology 10th International Symposium on Ecohydraulics (ISE 2014) , Trondheim 2014-06-23 - 2014-06-27
2013
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InterviewEinum, 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/ [Internet] 2013-11-22
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Academic lectureRobertsen, 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. Society for Experimental Biology SEB Valencia , Valencia 2013-07-03 - 2013-07-06
2012
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InterviewMeland, Svein Inge; Einum, Sigurd. (2012) Må overtale sta laks. Adresseavisen Adresseavisen [Newspaper] 2012-03-22
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Academic lectureEinum, Sigurd. (2012) Why non-spatial approaches may (sometimes) be inappropriate for modelling habitat effects on populations. Oikos annual meeting 2012-01-31 - 2012-02-02
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Academic lectureEinum, Sigurd. (2012) Sex, space and density dependence: why non-spatial approaches may be inappropriate for modeling habitat effects on populations. Nowpas annual meeting 2012 2012-03-22 - 2012-03-25
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Academic lectureEinum, Sigurd. (2012) Ecological modeling of optimal metabolic rates. Seminar , University of Lausanne 2012-12-07 - 2012-12-07
2011
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Interview
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Academic lectureEinum, Sigurd. (2011) Consequences of spatial within-population structure. University of Glasgow Universitetsseminar , Glasgow 2011-12-05 - 2011-12-05
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Academic lectureEinum, Sigurd. (2011) Spatial ecology of salmonids. University of Lausanne Universitets-seminar , Lausanne 2011-06-23 - 2011-06-23
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Academic lectureEinum, Sigurd. (2011) Romlig økologi hos laksefisk. Stjørdalselva Klekkeri Foredrag , Stjørdal 2011-04-27 - 2011-04-27
2010
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Interview
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Academic lectureEinum, Sigurd. (2010) Competition from recruits on an older cohort of Atlantic salmon. Advances in the population ecology of stream salmonids , Luarca 2010-05-17 - 2010-05-20
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Interview
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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 2010-02-16 - 2010-02-17
2008
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Academic lectureEinum, Sigurd. (2008) Density dependent population regulation in Atlantic salmon: spatial considerations. Energibedriftenes Landsforening Fiskesymposium 2008-02-09 - 2008-02-10
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Academic lectureEinum, Sigurd. (2008) Non-ideal distributions and their population consequences. Bern University Seminar 2008-11-11 - 2008-11-11
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Academic lectureEinum, Sigurd. (2008) Spatial considerations for Atlantic salmon production. Spawning target workshop 2008-04-24 - 2008-04-25
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Academic lectureEinum, Sigurd. (2008) Tetthethsavhengighet hos laks - årsaker og konsekvenser. Norges Forskningsråd program konferanse 2008-11-18 - 2008-11-19
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InterviewMonsen, 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 [Internet] 2008-02-21
2007
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Academic lectureEinum, Sigurd. (2007) Water discharge: effects on fish production. Envidorr project seminar 2007-08-30 -
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Academic lectureEinum, Sigurd. (2007) Egg size variation: what is it good for?. Department of Biology Department seminar , Trondheim 2007-02-01 -
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Academic lectureEinum, Sigurd. (2007) Population consequences of spatial breeding distributions. University of Oslo Centre for Ecological and Evolutionary Synthesis seminar 2007-11-08 -