Anna H. Andreassen

About

I am a Ph.D. candidate 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 supervisors are Fredrik Jutfelt, Florence Kermen and Timothy Clark.

Publications

2023

Andersen, Rasmus Ern; Andreassen, Anna Haukedal; Jutfelt, Fredrik Walter Jonas. (2023) Physiological mechanisms of acute upper thermal tolerance in fish. Physiology.
Academic article
Ern, Rasmus; Andreassen, Anna Haukedal; Jutfelt, Fredrik Walter Jonas. (2023) Physiological mechanisms of acute upper thermal tolerance in fish. 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. volum 119 (39).
Academic article
Morgan, Rachael Louise; Andreassen, Anna H.; Åsheim, Eirik Ryvoll; Finnøen, Mette Helene; Dresler, Gunnar; Brembu, Tore; Loh, Adrian; Miest, Joanna J.; Jutfelt, Fredrik. (2022) Reduced physiological plasticity in a fish adapted to stable temperatures. Proceedings of the National Academy of Sciences of the United States of America. volum 119 (22).
Academic article
Roche, Dominique G.; Raby, Graham D.; Norin, Tommy; Andersen, Rasmus Ern; Scheuffele, Hanna; Skeeles, Michael; Morgan, Rachael Louise; Andreassen, Anna Haukedal; Clements, Jeff C.; Louissaint, Sarahdghyn; Jutfelt, Fredrik Walter Jonas; Clark, Timothy D.; Binning, Sandra A.. (2022) Paths towards greater consensus building in experimental biology. Journal of Experimental Biology. volum 225.
Academic article

2021

Jutfelt, Fredrik; Norin, Tommy; Åsheim, Eirik Ryvoll; Rowsey, Lauren; Andreassen, Anna H.; Morgan, Rachael; Clark, Timothy D.; Speers-Roesch, Ben. (2021) ‘Aerobic scope protection’ reduces ectotherm growth under warming. Functional Ecology. volum 35.
Academic article
Norin, Tommy; Sundin, Hilma Josefin Sanna; Morgan, Rachael Louise; Andreassen, Anna H.; Amcoff, Mirjam; Speers-Roesch, Ben; Jutfelt, Fredrik; Binning, Sandra A.; Roche, Dominique G.; Clark, Timothy D.. (2021) Predator presence affects activity patterns but not food consumption or growth of juvenile corkwing wrasse (Symphodus melops). Behavioral Ecology and Sociobiology. volum 75 (14).
Academic article

2020

Roche, Dominique G.; Amcoff, Mirjam; Morgan, Rachael Louise; Sundin, Josefin; Andreassen, Anna H.; Finnøen, Mette Helene; Lawrence, Michael J.; Henderson, Eleanor; Norin, Tommy; Speers-Roesch, Ben; Brown, Culum; Clark, Timothy D.; Bshary, Redouan; Leung, Brian; Jutfelt, Fredrik; Binning, Sandra A.. (2020) Behavioural lateralization in a detour test is not repeatable in fishes. Animal Behaviour. volum 167.
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. volum 223.
Academic article

2019

Jutfelt, Fredrik; Roche, Dominique; Clark, Timothy D.; Norin, Tommy; Binning, Sandra; Speers-Roesch, Ben; Amcoff, Mirjam; Morgan, Rachael; Andreassen, Anna H.; Sundin, Hilma Josefin Sanna. (2019) Brain cooling marginally increases acute upper thermal tolerance in Atlantic cod. Journal of Experimental Biology. volum 222 (19).
Academic article

Journal publications

Andersen, Rasmus Ern; Andreassen, Anna Haukedal; Jutfelt, Fredrik Walter Jonas. (2023) Physiological mechanisms of acute upper thermal tolerance in fish. Physiology.
Academic article
Ern, Rasmus; Andreassen, Anna Haukedal; Jutfelt, Fredrik Walter Jonas. (2023) Physiological mechanisms of acute upper thermal tolerance in fish. 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. volum 119 (39).
Academic article
Morgan, Rachael Louise; Andreassen, Anna H.; Åsheim, Eirik Ryvoll; Finnøen, Mette Helene; Dresler, Gunnar; Brembu, Tore; Loh, Adrian; Miest, Joanna J.; Jutfelt, Fredrik. (2022) Reduced physiological plasticity in a fish adapted to stable temperatures. Proceedings of the National Academy of Sciences of the United States of America. volum 119 (22).
Academic article
Roche, Dominique G.; Raby, Graham D.; Norin, Tommy; Andersen, Rasmus Ern; Scheuffele, Hanna; Skeeles, Michael; Morgan, Rachael Louise; Andreassen, Anna Haukedal; Clements, Jeff C.; Louissaint, Sarahdghyn; Jutfelt, Fredrik Walter Jonas; Clark, Timothy D.; Binning, Sandra A.. (2022) Paths towards greater consensus building in experimental biology. Journal of Experimental Biology. volum 225.
Academic article
Jutfelt, Fredrik; Norin, Tommy; Åsheim, Eirik Ryvoll; Rowsey, Lauren; Andreassen, Anna H.; Morgan, Rachael; Clark, Timothy D.; Speers-Roesch, Ben. (2021) ‘Aerobic scope protection’ reduces ectotherm growth under warming. Functional Ecology. volum 35.
Academic article
Norin, Tommy; Sundin, Hilma Josefin Sanna; Morgan, Rachael Louise; Andreassen, Anna H.; Amcoff, Mirjam; Speers-Roesch, Ben; Jutfelt, Fredrik; Binning, Sandra A.; Roche, Dominique G.; Clark, Timothy D.. (2021) Predator presence affects activity patterns but not food consumption or growth of juvenile corkwing wrasse (Symphodus melops). Behavioral Ecology and Sociobiology. volum 75 (14).
Academic article
Roche, Dominique G.; Amcoff, Mirjam; Morgan, Rachael Louise; Sundin, Josefin; Andreassen, Anna H.; Finnøen, Mette Helene; Lawrence, Michael J.; Henderson, Eleanor; Norin, Tommy; Speers-Roesch, Ben; Brown, Culum; Clark, Timothy D.; Bshary, Redouan; Leung, Brian; Jutfelt, Fredrik; Binning, Sandra A.. (2020) Behavioural lateralization in a detour test is not repeatable in fishes. Animal Behaviour. volum 167.
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. volum 223.
Academic article
Jutfelt, Fredrik; Roche, Dominique; Clark, Timothy D.; Norin, Tommy; Binning, Sandra; Speers-Roesch, Ben; Amcoff, Mirjam; Morgan, Rachael; Andreassen, Anna H.; Sundin, Hilma Josefin Sanna. (2019) Brain cooling marginally increases acute upper thermal tolerance in Atlantic cod. Journal of Experimental Biology. volum 222 (19).
Academic article

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Anna H. Andreassen