Blar i Brage IMR på forfatter "Grønkjær, Peter"

Viser treff 1-8 av 8

    • Differences in metabolic rate between two Atlantic cod (Gadus morhua) populations estimated with carbon isotopic composition in otoliths 

      Smolinski, Szymon; Denechaud, Come; von Leesen, Gotje; Geffen, Audrey J.; Grønkjær, Peter; Godiksen, Jane A.; Campana, Steven E. (Peer reviewed; Journal article, 2021)
      The isotopic composition of inorganic carbon in otoliths (δ13Coto) can be a useful tracer of metabolic rates and a method to study ecophysiology in wild fish. We evaluated environmental and physiological sources of δ13Coto ...

    • Disparate movement behavior and feeding ecology in sympatric ecotypes of Atlantic cod 

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

    • Effects of temperature on tissue-diet isotopic spacing of nitrogen and carbon in otolith organic matter 

      Godiksen, Jane Aanestad; Chung, Ming-Tsung; Folkvord, Arild; Grønkjær, Peter (Journal article; Peer reviewed, 2019)
      Reconstruction of the trophic position of a fish can be performed by analysing stable nitrogen and carbon isotopes in otolith protein. However, ambient temperature may affect the tissue–diet isotopic spacing of stable ...

    • Field metabolic rates of teleost fishes are recorded in otolith carbonate 

      Chung, Ming-Tsung; Trueman, Clive N.; Godiksen, Jane Aanestad; Holmstrup, Mathias Engell; Grønkjær, Peter (Journal article; Peer reviewed, 2019)
      Field metabolic rate (FMR) is key to understanding individual and population-level responses to environmental changes, but is challenging to measure in field conditions, particularly in aquatic environments. Here we show ...

    • Growth portfolios buffer climate-linked environmental change in marine systems 

      Campana, Steven E.; Smolinski, Szymon; Black, Bryan A.; Morrongiello, John R.; Alexandroff, Stella J.; Andersson, Carin; Bogstad, Bjarte; Butler, Paul G.; Denechaud, Côme; Frank, David C.; Geffen, Audrey J.; Godiksen, Jane Aanestad; Grønkjær, Peter; Hjörleifsson, Einar; Jónsdóttir, Ingibjörg G.; Meekan, Mark; Mette, Madelyn; Tanner, Susanne E.; van der Sleen, Peter; von Leesen, Gotje (Peer reviewed; Journal article, 2022)
      Large-scale, climate-induced synchrony in the productivity of fish populations is becoming more pronounced in the world's oceans. As synchrony increases, a population's “portfolio” of responses can be diminished, in turn ...

    • Growth portfolios buffer climate-linked environmental change in marine systems 

      Campana, Steven E.; Smolinski, Szymon; Black, Bryan A.; Morrongiello, John R.; Alexandroff, Stella J.; Andersson, Carin; Bogstad, Bjarte; Butler, Paul G.; Denechaud, Côme; Frank, David C.; Geffen, Audrey J.; Godiksen, Jane Aanestad; Grønkjær, Peter; Hjörleifsson, Einar; Jónsdóttir, Ingibjörg G.; Meekan, Mark; Mette, Madelyn; Tanner, Susanne E.; van der Sleen, Peter; von Leesen, Gotje (Peer reviewed; Journal article, 2022)
      Large-scale, climate-induced synchrony in the productivity of fish populations is becoming more pronounced in the world's oceans. As synchrony increases, a population's “portfolio” of responses can be diminished, in turn ...

    • Otolith δ13C values as a metabolic proxy: Approaches and mechanical underpinnings 

      Chung, Ming-Tsung; Trueman, Clive N.; Godiksen, Jane Aanestad; Grønkjær, Peter (Journal article; Peer reviewed, 2019)
      Knowledge of metabolic costs associated with maintenance, foraging, activity and growth under natural conditions is important for understanding fish behaviours and the bioenergetic consequences of a changing environment. ...

    • Stable coexistence of genetically divergent Atlantic cod ecotypes at multiple spatial scales 

      Knutsen, Halvor; Jorde, Per Erik; Hutchings, Jeffrey; Hemmer-Hansen, Jakob; Grønkjær, Peter; Jørgensen, Kris-Emil Mose; André, Carl; Sodeland, Marte; Albretsen, Jon; Olsen, Esben Moland (Journal article; Peer reviewed, 2018)
      Coexistence in the same habitat of closely related yet genetically different populations is a phenomenon that challenges our understanding of local population structure and adaptation. Identifying the underlying mechanisms ...