Anna Haukedal Andreassen
About
I am working on mechanisms and evolution of thermal tolerance in the Jutfelt Fish Ecophysiology lab. My project started in August 2019 and involves two main approaches to test what limits the upper thermal tolerance of vertebrates.
First, to uncover which phenotypic traits are important for survival and how the biology of ectotherms changes under the predicted climate challenges, I will characterise how life-history traits, metabolic rates, swim speed, thermal preference, and critical thermal maximum and minimum, vary between lines of the 8th generation of zebrafish selected for upper thermal limits.
Second, to answer whether the whole animal response to critical temperatures is caused by limitations in specific organ systems, I will quantify and map the timing of the central nervous and circulatory responses to critical temperatures.
My PhD supervisors were Fredrik Jutfelt, Christophe Pelabon, Florence Kermen and Timothy Clark.
Publications
2024
-
Åsheim, Eirik Ryvoll;
Andreassen, Anna Haukedal;
Morgan, Rachael Louise;
Silvestre, Mireia;
Jutfelt, Fredrik Walter Jonas.
(2024)
Acute warming tolerance (CT<inf>max</inf>) in zebrafish (Danio rerio) appears unaffected by changes in water salinity.
PeerJ
Academic article
2023
-
Andersen, Rasmus Ern;
Andreassen, Anna Haukedal;
Jutfelt, Fredrik Walter Jonas.
(2023)
Physiological mechanisms of acute upper thermal tolerance in fish.
Physiology
Academic article
-
Cowan, Zara-Louise;
Andreassen, Anna Haukedal;
De Bonville, Jeremy;
Green, Leon;
Binning, Sandra A;
Silva Garay, Diana Lorena.
(2023)
A novel method for measuring acute thermal tolerance in fish embryos.
Conservation Physiology
Academic article
2022
-
Andreassen, Anna H.;
Hall, Petter;
Khatibzadeh, Pouya;
Jutfelt, Fredrik;
Kermen, Florence.
(2022)
Brain dysfunction during warming is linked to oxygen limitation in larval zebrafish.
Proceedings of the National Academy of Sciences of the United States of America (PNAS)
Academic article
-
Roche, Dominique G.;
Raby, Graham D.;
Norin, Tommy;
Andersen, Rasmus Ern;
Scheuffele, Hanna;
Skeeles, Michael.
(2022)
Paths towards greater consensus building in experimental biology .
Journal of Experimental Biology
Academic article
-
Morgan, Rachael Louise;
Andreassen, Anna H.;
Åsheim, Eirik Ryvoll;
Finnøen, Mette Helene;
Dresler, Gunnar;
Brembu, Tore.
(2022)
Reduced physiological plasticity in a fish adapted to stable temperatures.
Proceedings of the National Academy of Sciences of the United States of America (PNAS)
Academic article
2021
-
Norin, Tommy;
Sundin, Hilma Josefin Sanna;
Morgan, Rachael Louise;
Andreassen, Anna H.;
Amcoff, Mirjam;
Speers-Roesch, Ben.
(2021)
Predator presence affects activity patterns but not food consumption or growth of juvenile corkwing wrasse (Symphodus melops).
Behavioral Ecology and Sociobiology
Academic article
-
Jutfelt, Fredrik;
Norin, Tommy;
Åsheim, Eirik Ryvoll;
Rowsey, Lauren;
Andreassen, Anna H.;
Morgan, Rachael.
(2021)
‘Aerobic scope protection’ reduces ectotherm growth under warming.
Functional Ecology
Academic article
2020
-
Roche, Dominique G.;
Amcoff, Mirjam;
Morgan, Rachael Louise;
Sundin, Josefin;
Andreassen, Anna H.;
Finnøen, Mette Helene.
(2020)
Behavioural lateralization in a detour test is not repeatable in fishes.
Animal Behaviour
Academic article
-
Åsheim, Eirik Ryvoll;
Andreassen, Anna H.;
Morgan, Rachael Louise;
Jutfelt, Fredrik.
(2020)
Rapid-warming tolerance correlates with tolerance to slow warming but not growth at non-optimal temperatures in zebrafish.
Journal of Experimental Biology
Academic article
2019
-
Jutfelt, Fredrik;
Roche, Dominique;
Clark, Timothy D.;
Norin, Tommy;
Binning, Sandra;
Speers-Roesch, Ben.
(2019)
Brain cooling marginally increases acute upper thermal tolerance in Atlantic cod.
Journal of Experimental Biology
Academic article
Journal publications
-
Åsheim, Eirik Ryvoll;
Andreassen, Anna Haukedal;
Morgan, Rachael Louise;
Silvestre, Mireia;
Jutfelt, Fredrik Walter Jonas.
(2024)
Acute warming tolerance (CT<inf>max</inf>) in zebrafish (Danio rerio) appears unaffected by changes in water salinity.
PeerJ
Academic article
-
Andersen, Rasmus Ern;
Andreassen, Anna Haukedal;
Jutfelt, Fredrik Walter Jonas.
(2023)
Physiological mechanisms of acute upper thermal tolerance in fish.
Physiology
Academic article
-
Cowan, Zara-Louise;
Andreassen, Anna Haukedal;
De Bonville, Jeremy;
Green, Leon;
Binning, Sandra A;
Silva Garay, Diana Lorena.
(2023)
A novel method for measuring acute thermal tolerance in fish embryos.
Conservation Physiology
Academic article
-
Andreassen, Anna H.;
Hall, Petter;
Khatibzadeh, Pouya;
Jutfelt, Fredrik;
Kermen, Florence.
(2022)
Brain dysfunction during warming is linked to oxygen limitation in larval zebrafish.
Proceedings of the National Academy of Sciences of the United States of America (PNAS)
Academic article
-
Roche, Dominique G.;
Raby, Graham D.;
Norin, Tommy;
Andersen, Rasmus Ern;
Scheuffele, Hanna;
Skeeles, Michael.
(2022)
Paths towards greater consensus building in experimental biology .
Journal of Experimental Biology
Academic article
-
Morgan, Rachael Louise;
Andreassen, Anna H.;
Åsheim, Eirik Ryvoll;
Finnøen, Mette Helene;
Dresler, Gunnar;
Brembu, Tore.
(2022)
Reduced physiological plasticity in a fish adapted to stable temperatures.
Proceedings of the National Academy of Sciences of the United States of America (PNAS)
Academic article
-
Norin, Tommy;
Sundin, Hilma Josefin Sanna;
Morgan, Rachael Louise;
Andreassen, Anna H.;
Amcoff, Mirjam;
Speers-Roesch, Ben.
(2021)
Predator presence affects activity patterns but not food consumption or growth of juvenile corkwing wrasse (Symphodus melops).
Behavioral Ecology and Sociobiology
Academic article
-
Jutfelt, Fredrik;
Norin, Tommy;
Åsheim, Eirik Ryvoll;
Rowsey, Lauren;
Andreassen, Anna H.;
Morgan, Rachael.
(2021)
‘Aerobic scope protection’ reduces ectotherm growth under warming.
Functional Ecology
Academic article
-
Roche, Dominique G.;
Amcoff, Mirjam;
Morgan, Rachael Louise;
Sundin, Josefin;
Andreassen, Anna H.;
Finnøen, Mette Helene.
(2020)
Behavioural lateralization in a detour test is not repeatable in fishes.
Animal Behaviour
Academic article
-
Åsheim, Eirik Ryvoll;
Andreassen, Anna H.;
Morgan, Rachael Louise;
Jutfelt, Fredrik.
(2020)
Rapid-warming tolerance correlates with tolerance to slow warming but not growth at non-optimal temperatures in zebrafish.
Journal of Experimental Biology
Academic article
-
Jutfelt, Fredrik;
Roche, Dominique;
Clark, Timothy D.;
Norin, Tommy;
Binning, Sandra;
Speers-Roesch, Ben.
(2019)
Brain cooling marginally increases acute upper thermal tolerance in Atlantic cod.
Journal of Experimental Biology
Academic article
Knowledge Transfer
Heat waves harm fish brains
In a ground-breaking study by Anna Andreassen and her team at the Norwegian University of Science and Technology, the researchers investigated what happens to the brains of larval zebrafish (Danio rerio) during extreme heatwaves...
What goes on in the brain when it gets too hot?
Which organisms survive and which succumb when the climate changes? A small larval fish is providing surprising insight into how the brain reacts when the temperature rises.
Hva skjer oppe i hodet når det blir for varmt?
Hvilke organismer vil overleve og hvilke vil bukke under når klimaet endrer seg? En liten fiskelarve har gitt overraskende innsyn i hvordan hjernen reagerer når temperaturen stiger.