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Year-round utilization of sea ice-associated carbon in Arctic ecosystems

Author

Listed:
  • Chelsea W. Koch

    (Natural History Museum
    University of Maryland Center for Environmental Science)

  • Thomas A. Brown

    (Scottish Association for Marine Science)

  • Rémi Amiraux

    (University of Manitoba)

  • Carla Ruiz-Gonzalez

    (Scottish Association for Marine Science)

  • Maryam MacCorquodale

    (Scottish Association for Marine Science)

  • Gustavo A. Yunda-Guarin

    (Laval University)

  • Doreen Kohlbach

    (Norwegian Polar Institute, Fram Centre)

  • Lisa L. Loseto

    (Freshwater Institute)

  • Bruno Rosenberg

    (Freshwater Institute)

  • Nigel E. Hussey

    (University of Windsor)

  • Steve H. Ferguson

    (Freshwater Institute)

  • David J. Yurkowski

    (Freshwater Institute)

Abstract

Sea ice primary production is considered a valuable energy source for Arctic marine food webs, yet the extent remains unclear through existing methods. Here we quantify ice algal carbon signatures using unique lipid biomarkers in over 2300 samples from 155 species including invertebrates, fish, seabirds, and marine mammals collected across the Arctic shelves. Ice algal carbon signatures were present within 96% of the organisms investigated, collected year-round from January to December, suggesting continuous utilization of this resource despite its lower proportion to pelagic production. These results emphasize the importance of benthic retention of ice algal carbon that is available to consumers year-round. Finally, we suggest that shifts in the phenology, distribution and biomass of sea ice primary production anticipated with declining seasonal sea ice will disrupt sympagic-pelagic-benthic coupling and consequently the structure and the functioning of the food web which is critical for Indigenous Peoples, commercial fisheries, and global biodiversity.

Suggested Citation

  • Chelsea W. Koch & Thomas A. Brown & Rémi Amiraux & Carla Ruiz-Gonzalez & Maryam MacCorquodale & Gustavo A. Yunda-Guarin & Doreen Kohlbach & Lisa L. Loseto & Bruno Rosenberg & Nigel E. Hussey & Steve H, 2023. "Year-round utilization of sea ice-associated carbon in Arctic ecosystems," Nature Communications, Nature, vol. 14(1), pages 1-10, December.
    • Handle: RePEc:nat:natcom:v:14:y:2023:i:1:d:10.1038_s41467-023-37612-8
    DOI: 10.1038/s41467-023-37612-8
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    References listed on IDEAS

    as
    1. T. A. Brown & S. T. Belt & A. Tatarek & C. J. Mundy, 2014. "Source identification of the Arctic sea ice proxy IP25," Nature Communications, Nature, vol. 5(1), pages 1-7, September.
    2. Carlos Cinelli & Chad Hazlett, 2020. "Making sense of sensitivity: extending omitted variable bias," Journal of the Royal Statistical Society Series B, Royal Statistical Society, vol. 82(1), pages 39-67, February.
    3. Xosé Luis Otero & Saul Peña-Lastra & Augusto Pérez-Alberti & Tiago Osorio Ferreira & Miguel Angel Huerta-Diaz, 2018. "Seabird colonies as important global drivers in the nitrogen and phosphorus cycles," Nature Communications, Nature, vol. 9(1), pages 1-8, December.
    4. Mathieu Ardyna & Kevin Robert Arrigo, 2020. "Phytoplankton dynamics in a changing Arctic Ocean," Nature Climate Change, Nature, vol. 10(10), pages 892-903, October.
    Full references (including those not matched with items on IDEAS)

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