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Modelling growth of northern krill (Meganyctiphanes norvegica) using an energy-budget approach

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  • Jager, Tjalling
  • Ravagnan, Elisa

Abstract

Northern krill (Meganyctiphanes norvegica) is an important species in the North Atlantic and the Mediterranean Sea, but very little life-history information is available under controlled (laboratory) conditions. Here, we use the DEBkiss model to piece together the available data into a quantitative energy budget. We use this model to analyse larval growth curves, and to reconstruct the feeding history for field populations from their (reconstructed) multi-year growth patterns. The resulting model parameters are also used to provide estimates for respiration, feeding and reproduction rates that are consistent with measured values. Many uncertainties remain, but this analysis demonstrates how simple and generic energy-budget models have the potential to integrate observations on different traits, to interpret growth as a function of food and temperature, and to compare different species in a meaningful manner.

Suggested Citation

  • Jager, Tjalling & Ravagnan, Elisa, 2016. "Modelling growth of northern krill (Meganyctiphanes norvegica) using an energy-budget approach," Ecological Modelling, Elsevier, vol. 325(C), pages 28-34.
    • Handle: RePEc:eee:ecomod:v:325:y:2016:i:c:p:28-34
    DOI: 10.1016/j.ecolmodel.2015.12.020
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    References listed on IDEAS

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    1. Jager, Tjalling & Salaberria, Iurgi & Hansen, Bjørn Henrik, 2015. "Capturing the life history of the marine copepod Calanus sinicus into a generic bioenergetics framework," Ecological Modelling, Elsevier, vol. 299(C), pages 114-120.
    2. Tremblay, Nelly & Werner, Thorsten & Huenerlage, Kim & Buchholz, Friedrich & Abele, Doris & Meyer, Bettina & Brey, Thomas, 2014. "Euphausiid respiration model revamped: Latitudinal and seasonal shaping effects on krill respiration rates," Ecological Modelling, Elsevier, vol. 291(C), pages 233-241.
    3. Groeneveld, Jürgen & Johst, Karin & Kawaguchi, So & Meyer, Bettina & Teschke, Mathias & Grimm, Volker, 2015. "How biological clocks and changing environmental conditions determine local population growth and species distribution in Antarctic krill (Euphausia superba): a conceptual model," Ecological Modelling, Elsevier, vol. 303(C), pages 78-86.
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    Cited by:

    1. Jager, Tjalling & Nepstad, Raymond & Hansen, Bjørn Henrik & Farkas, Julia, 2018. "Simple energy-budget model for yolk-feeding stages of Atlantic cod (Gadus morhua)," Ecological Modelling, Elsevier, vol. 385(C), pages 213-219.
    2. Ren, Jeffrey S. & Ragg, Norman L.C. & Cummings, Vonda J. & Zhang, Jihong, 2020. "Ocean acidification and dynamic energy budget models: Parameterisation and simulations for the green-lipped mussel," Ecological Modelling, Elsevier, vol. 426(C).

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