Browsing Published externally by Author "Yaragina, Natalia A."

Now showing items 1-13 of 13

    • Density‐ and size‐dependent mortality in fish early life stages 

      Stige, Leif Christian; Rogers, Lauren; Neuheimer, Anna B.; Hunsicker, Mary E.; Yaragina, Natalia A.; Ottersen, Geir; Ciannelli, Lorenzo; Langangen, Øystein; Durant, Joel Marcel (Journal article; Peer reviewed, 2019)
      The importance of survival and growth variations early in life for population dynamics depends on the degrees of compensatory density dependence and size dependence in survival at later life stages. Quantifying density‐ ...

    • Deriving condition indices from standard fisheries databases and evaluating their sensitivity to variation in stored energy reserves 

      Marshall, C. Tara; Needle, Coby L.; Yaragina, Natalia A.; Ajiad, Adnan Mosa; Gusev, Evgeny (Journal article; Peer reviewed, 2004)
      To evaluate interstock differences in condition, it would be advantageous to develop stock-level condition indices from standardized databases on weight and length. This study describes a method for estimating stock-level ...

    • Diets of the Barents Sea cod (Gadus morhua) from the 1930s to 2018 

      Townhill, Bryony; Holt, Rebecca Emma; Bogstad, Bjarte; Durant, Joël; Pinnegar, John K.; Dolgov, Andrey V.; Yaragina, Natalia A.; Johannesen, Edda; Ottersen, Geir (Peer reviewed; Journal article, 2021)
      A new dataset on the diet of Atlantic cod in the Barents Sea from the 1930s to the present day has been compiled to produce one of the largest fish diet datasets available globally. Atlantic cod is one of the most ecologically ...

    • Diets of the Barents Sea cod (Gadus morhua) from the 1930s to 2018 

      Townhill, Bryony; Holt, Rebecca Emma; Bogstad, Bjarte; Durant, Jo l M.; Pinnegar, John K.; Dolgov, Andrey V.; Yaragina, Natalia A.; Johannesen, Edda; Ottersen, Geir (Peer reviewed; Journal article, 2021)
      A new dataset on the diet of Atlantic cod in the Barents Sea from the 1930s to the present day has been compiled to produce one of the largest fish diet datasets available globally. Atlantic cod is one of the most ecologically ...

    • Direct and indirect climate forcing in a multi-species marine system 

      Ottersen, Geir; Stige, Leif Christian; Dalpadado, Padmini; Chan, Kung-Sik; Hjermann, Dag Ø.; Lajus, Dmitry L.; Yaragina, Natalia A.; Stenseth, Nils Christian (Journal article; Peer reviewed, 2010-10)
      Interactions within and between species complicate quantification of climate effects, by causing indirect, often delayed, effects of climate fluctuations and compensation of mortality. Here we identify direct and indirect ...

    • Effects of climate and spawning stock structure on the spatial distribution of Northeast Arctic cod larvae 

      Endo, Clarissa; Vikebø, Frode Bendiksen; Yaragina, Natalia A.; Hjøllo, Solfrid Sætre; Stige, Leif Christian (Peer reviewed; Journal article, 2020)
      The spatial distribution of fish early life stages can impact recruitment at later stages and affect population size and resilience. Northeast Arctic (NEA) cod spawning occurs along the Norwegian coast. Eggs, larvae, and ...

    • Match-mismatch dynamics in the Norwegian-Barents Sea system 

      Ferreira, Ana Sofia De Araújo; Stige, Leif Christian; Neuheimer, Anna B.; Bogstad, Bjarte; Yaragina, Natalia A.; Prokopchuk, Irina; Durant, Joel Marcel (Peer reviewed; Journal article, 2020)
      A key process affecting variation in the recruitment of fish into fisheries is the spatio-temporal overlap between prey and predator (match-mismatch hypothesis, MMH). The Northeast Arctic cod Gadus morhua and its dominant ...

    • Match-mismatch dynamics in the Norwegian-Barents Sea system 

      Ferreira, Ana Sofia De Araújo; Stige, Leif Christian; Neuheimer, Anna B.; Bogstad, Bjarte; Yaragina, Natalia A.; Prokopchuk, Irina; Durant, Joel Marcel (Peer reviewed; Journal article, 2020)
      A key process affecting variation in the recruitment of fish into fisheries is the spatio-temporal overlap between prey and predator (match-mismatch hypothesis, MMH). The Northeast Arctic cod Gadus morhua and its dominant ...

    • Ontogenetic spatial constraints of sub-arctic marine fish species 

      Ciannelli, Lorenzo; Neuheimer, Anna B.; Stige, Leif Christian; Frank, Kenneth T.; Durant, Joël; Hunsicker, Mary E.; Rogers, Lauren; Porter, Steve; Ottersen, Geir; Yaragina, Natalia A. (Peer reviewed; Journal article, 2021)
      Marine species may respond and adapt to climate change through shifting spatial distributions, but options may be limited by the occupancy of essential habitats which are anchored in space. Limited knowledge of when spatial ...

    • Reconstructing the stock–recruit relationship for Northeast Arctic cod using a bioenergetic index of reproductive potential 

      Marshall, C. Tara; Yaragina, Natalia A.; Ådlandsvik, Bjørn; Dolgov, Andrey V. (Journal article; Peer reviewed, 2000)
      Correlation and simulation analyses suggest that, for the Northeast Arctic (NA) cod stock, the total lipid energy (TLE (kJ)) contained in the livers of mature females is proportional to total egg production, making TLE a ...

    • Systematic bias in estimates of reproductive potential of an Atlantic cod (Gadus morhua) stock: implications for stock–recruit theory and management 

      Marshall, C. Tara; Needle, Coby L.; Thorsen, Anders; Kjesbu, Olav Sigurd; Yaragina, Natalia A. (Journal article; Peer reviewed, 2006)
      Stock–recruit relationships that use spawning stock biomass (SSB) to represent reproductive potential assume that the proportion of SSB composed of females and the relative fecundity (number of eggs produced per unit ...

    • The effects of oil spills on marine fish: Implications of spatial variation in natural mortality 

      Langangen, Øystein; Olsen, Erik Joel Steinar; Stige, Leif Christian; Ohlberger, Jan Philipp; Yaragina, Natalia A.; Vikebø, Frode Bendiksen; Bogstad, Bjarte; Stenseth, Nils Christian; Hjermann, Dag Øystein (Peer reviewed; Journal article, 2017)

    • Variability in cannibalism in Northeast Arctic cod (Gadus Morhua) during the period 1947-2006 

      Yaragina, Natalia A.; Bogstad, Bjarte; Kovalev, Yuri (Journal article; Peer reviewed, 2009-01)
      Cannibalism is probably the most important and also the most variable cause of natural mortality for age 1-4 Northeast Arctic cod. Also, the proportion of cod in the diet of Northeast Arctic cod increases with increasing ...