Spatial Variability in the Primary Production Rates and Biomasses (Chl a) of Sea Ice Algae in the Canadian Arctic–Greenland Region: A Review

Laura Martin-Garcia, Brian Keith Sorrell, Dorte Haubjerg Søgaard, Lars Chresten Lund-Hansen*

*Corresponding author for this work

Research output: Contribution to journal/Conference contribution in journal/Contribution to newspaperReviewResearchpeer-review

Abstract

The aims of this review are to elucidate the spatial variation in the primary production rates and biomasses (Chl a) of sea ice algae in the Canadian Arctic–Greenland region, characterized by its comparable physical settings. A database was compiled from 30 studies of the production rates and biomasses (Chl a) of sea ice algae, the snow and ice thicknesses, ice types, nutrients (Si(OH) 4, PO 4, (NO 3 + NO 2)), and NH 4 concentrations in the ice and below the ice from the region. Production rates were significantly higher (463 mg C m −2 d −1) in Resolute Bay and Northern Baffin Bay (317 mg C m −2 d −1), both in the Canadian Arctic, compared to a rate of 0.2 mg C m −2 d −1 in northeast Greenland. The biomasses reached 340 mg Chl a m −2 in Resolute Bay in comparison to 0.02 mg Chl a m −2 in southwest Greenland. Primary production at other Canadian and Greenland sites was comparable, but sea ice Chl a was higher (15.0 ± 13.4 mg Chl a m −2) at Canadian sites compared to Greenland ones (0.8 ± 0.5 mg Chl a m −2). Resolute and Northern Baffin Bay production rates were significantly higher when compared to other Arctic Ocean sites outside the studied region. The review concludes that the high production rates and biomasses in Resolute and Northern Baffin Bay are related to the inflow and mixing of nutrient-rich waters of Pacific origin. A conceptual model with drivers and inhibitors of the primary production of sea ice algae is proposed, and the database is compiled into a dataset of published data for further studies.

Original languageEnglish
Article number2063
JournalJournal of Marine Science and Engineering
Volume11
Issue11
Number of pages11
ISSN2077-1312
DOIs
Publication statusPublished - Nov 2023

Keywords

  • Canadian Arctic Archipelago
  • Chl a
  • Greenland
  • nutrients
  • ocean-ography
  • sea ice algae’s primary production
  • snow and sea ice thickness

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