Estimates of net community production from multiple approaches surrounding the spring ice-edge bloom in Baffin Bay
Bibliographic Data
| ID | 19568469 |
|---|---|
| Authors | Tonya M Burgers, Tonya Burgers (0000-0002-9974-6405, University of Manitoba), Jean-Éric Tremblay, Jean‐Éric Tremblay (0000-0003-0319-5723, Université Laval), Brent Else (0000-0003-0002-7011, University of Calgary), Brent G T Else, Tim Papakyriakou (0000-0002-2019-9104, University of Manitoba), Tim N Papakyriakou |
| Year | 2020 |
| Volume | 8 |
| Issue | 1 |
| Publication date | 2020-11-23 |
| Peer Reviewed | Yes |
| Open Access | Yes |
| Type | ARTICLE |
| Venue | Elementa Science of the Anthropocene (JOURNAL) |
| Journal identifiers | ISSN: 2325-1026 • E-ISSN: 2325-1026 |
| Publisher | University of California Press (PUBLISHER • US) |
| DOI | 10.1525/elementa.013 |
| OpenAlex | W3110218028 |
| Language | EN |
| Citations received | 2 |
| References cited | 78 |
Measurements of net community production (NCP) provide an upper constraint on the strength of the oceanic biological pump, the dominant mechanism for removing CO2 from the ocean surface and sequestering it at depth. In this investigation, our objectives were to describe the spatial and temporal variability of NCP associated with the spring ice-edge bloom in Baffin Bay and to identify the key environmental drivers controlling its variability. Using data collected between June 9 and July 10, 2016, we estimated NCP based on (1) underway measurements of surface water oxygen to argon ratios (O2:Ar), (2) underway measurements of the partial pressure of CO2, and (3) seasonal nitrate drawdown from discrete samples. These multiple approaches displayed high NCP (up to 5.7 mol C m–2) in eastern Baffin Bay, associated with modified Atlantic waters, and low NCP (<1 mol C m–2) in the presence of Arctic outflow waters in western Baffin Bay. Arctic outflow waters were characterized by low surface salinities and nitrate concentrations, suggesting that high freshwater content may have limited the nutrient availability of these waters. Different integration depths and timescales associated with each NCP approach were exploited to understand the temporal progression and succession of the bloom, revealing that the bloom was initiated under ice up to 15 days prior to ice retreat and that a large portion of NCP in eastern Baffin Bay (potentially up to 70%) was driven by primary production occurring below the surface-mixed layer
Arctic · Bay · Bloom · Nutrient · Outflow · Phytoplankton · Spring bloom · Arctic and Antarctic ice dynamics · Environmental Science · Marine and coastal ecosystems · Ocean Acidification Effects and Responses · Ecology · Geology · Oceanography
The NCEP/NCAR 40-Year Reanalysis Project
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Environmental factors influencing the seasonal dynamics of spring algal blooms in and beneath sea ice in western Baffin Bay
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| Unique citing works | 2 |
|---|---|
| Citations per year | 1 |
| Citation span | 2024 - 2025 (2) |
| Citation velocity | recent |
| Highly cited | No |
| Citation types | Neutral: 2 |