Browsing Publikasjoner fra CRIStin by Author "Geffen, Audrey J."

Now showing items 1-9 of 9

    • A century of fish growth in relation to climate change, population dynamics and exploitation 

      Denechaud, Come; Smolinski, Szymon; Geffen, Audrey J.; Godiksen, Jane Aanestad; Campana, Steven E. (Peer reviewed; Journal article, 2020)
      Marine ecosystems, particularly in high‐latitude regions such as the Arctic, have been significantly affected by human activities and contributions to climate change. Evaluating how fish populations responded to past changes ...

    • Century-long cod otolith biochronology reveals individual growth plasticity in response to temperature 

      Smolinski, Szymon; Deplanque-Lasserre, Julie; Hjörleifsson, Einar; Geffen, Audrey J.; Godiksen, Jane Aanestad; Campana, Steven E. (Peer reviewed; Journal article, 2020)
      Otolith biochronologies combine growth records from individual fish to produce long-term growth sequences, which can help to disentangle individual from population-level responses to environmental variability. This study ...

    • 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 ...

    • 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 ...

    • Lemon sole Microstomus kitt in the northern North Sea: a multidisciplinary approach to the early life-history dynamics 

      Geffen, Audrey J.; Albretsen, Jon; Huwer, Bastian; Nash, Richard David Marriott (Peer reviewed; Journal article, 2021)
      Lemon sole Microstomus kitt is a commercially valuable flatfish species that occurs in shelf waters around the northeast Atlantic. Only the most basic life-history information is available for the North Sea. Spawning is ...

    • Linking dispersal connectivity to population structure and management boundaries for saithe in the Northeast Atlantic 

      Myksvoll, Mari Skuggedal; Devine, Jennifer Ann; Quintela, Maria; Geffen, Audrey J.; Nash, Richard David Marriott; Sandvik, Anne Dagrun; Besnier, Francois; Saha, Atal; Dahle, Geir; Jansson, Eeva; Nedreaas, Kjell Harald; Johansen, Torild (Peer reviewed; Journal article, 2021)
      Population connectivity is an increasingly important focal area for the understanding of how marine fish populations respond to anthropogenic pressures like climate change and fisheries. Our model species, the saithe ...

    • Ontogenetic movements of cod in Arctic fjords and the Barents Sea as revealed by otolith microchemistry 

      Andrade Rodriguez, Hector Antonio; van der Sleen, Peter; Black, Bryan A.; Godiksen, Jane Aanestad; Locke V, William L.; Carroll, Michael Leslie; Ambrose, William G. Jr.; Geffen, Audrey J. (Peer reviewed; Journal article, 2020)
      The distribution of Atlantic cod (Gadus morhua) in northern Norwegian waters is expanding eastward and northward in the Barents Sea and along western Svalbard. In the Arctic fjords of Svalbard, cod has become abundant, but ...

    • Otolith “spawning zones” across multiple Atlantic cod populations: Do they accurately record maturity and spawning? 

      Denechaud, Côme; Geffen, Audrey J.; Smolinski, Szymon; Godiksen, Jane Aanestad (Peer reviewed; Journal article, 2021)
      Specific changes identified in the otolith macrostructure of Northeast Arctic cod as “spawning zones” are presumed to represent spawning events, but recent experimental studies have challenged this relationship. Because ...