Iron from melting glaciers fuels the phytoplankton blooms in Amundsen Sea (Southern Ocean): Iron biogeochemistry

Gerringa, Loes J. A.; Alderkamp, Anne‐Carlijn; Laan, Patrick; Thuróczy, Charles-Edouard; Baar, H. J. W. de; Mills, Matthew M.; Dijken, Gert L. van; Haren, Hans van; Arrigo, Kevin R.

doi:10.1016/j.dsr2.2012.03.007

Cited by 206 publications

(249 citation statements)

References 96 publications

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“…The concentrations of total dissolvable Fe (TDFe) are reported in detail by Gerringa et al (2012). At the open ocean stations (St. 160) [TDFe] were low (0.31-4.31 nM TDFe) as showed by Gerringa et al (2012).…”

Section: Dissolved Iron and Total Dissolvable Ironmentioning

confidence: 99%

“…Shipboard analysis of dissolved Fe was done using an in-line Flow Injection Analysis system with chemiluminescence as a detection method (De Baar et al, 2008a,b;De Jong et al, 1998) and is described in detail by Gerringa et al (2012). In addition, unfiltered samples (19 profiles and 8 surface stations) were taken and acidified to pH ¼1.8 for at least 6 months of dissolution before being analyzed in the same way as for DFe in the home laboratory.…”

Section: Iron Analysesmentioning

confidence: 99%

“…This work is part of the DynaLiFe project (Shedding a dynamic light on Fe limitation in the Southern Ocean) which studied in situ phytoplankton primary productivity and taxonomic composition in relation to Fe limitation and dynamic changes in irradiance . Details on the hydrography and Fe distributions in the Amundsen Sea are described in Gerringa et al (2012). The phytoplankton characteristics and nutrient distribution are described in .…”

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confidence: 99%

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Key role of organic complexation of iron in sustaining phytoplankton blooms in the Pine Island and Amundsen Polynyas (Southern Ocean)

Thuróczy

Alderkamp

Laan

et al. 2012

Deep Sea Research Part II: Topical Studies in Oceanography

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Section: Dissolved Iron and Total Dissolvable Ironmentioning

confidence: 99%

Section: Iron Analysesmentioning

confidence: 99%

mentioning

confidence: 99%

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Key role of organic complexation of iron in sustaining phytoplankton blooms in the Pine Island and Amundsen Polynyas (Southern Ocean)

Thuróczy

Alderkamp

Laan

et al. 2012

Deep Sea Research Part II: Topical Studies in Oceanography

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“…Net primary production rates (NPP) were very high and variable (84-333 mmol C m -2 d -1 ) near the peak of the phytoplankton bloom within the polynya during the ASPIRE cruise in 2010-11. The high NPP appears to be supported by transport of iron from melting glaciers Gerringa et al, 2012;Sherrell et al, 2015). This mechanism may be especially important in the Amundsen Sea, a region of increased ice mass loss (Rignot et al, 2008).…”

Section: La Et Al (This Issue) Conducted Acoustic Analyses On Volume-mentioning

confidence: 98%

The interdisciplinary marine system of the Amundsen Sea, Southern Ocean: Recent advances and the need for sustained observations

Meredith

Ducklow

Schofield

et al. 2016

Deep Sea Research Part II: Topical Studies in Oceanography

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“…However, in some places like Pine Island Bay, this relatively warm water advects beneath floating ice shelves, melting them at their base (Jenkins et al, 2010). This releases iron, and the iron-rich water subsequently rises to the surface near the ice shelf front (Gerringa et al, 2012), stimulating substantial phytoplankton growth and accumulation. Indeed, the highest phytoplankton concentrations in the Southern Ocean are found near the ice shelves of the Amundsen Sea (Arrigo and Van Dijken, 2003;Arrigo et al, 2008, although the spatial extent of the Amundsen blooms is far less than those in the Ross Sea (Smith et al, 2014b).…”

Section: Impacts Of Advection On Primary Production In the Antarcticmentioning

confidence: 99%

Advection in polar and sub-polar environments: Impacts on high latitude marine ecosystems

Hunt

Drinkwater

Arrigo

et al. 2016

Progress in Oceanography

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a b s t r a c tWe compare and contrast the ecological impacts of atmospheric and oceanic circulation patterns on polar and sub-polar marine ecosystems. Circulation patterns differ strikingly between the north and south. Meridional circulation in the north provides connections between the sub-Arctic and Arctic despite the presence of encircling continental landmasses, whereas annular circulation patterns in the south tend to isolate Antarctic surface waters from those in the north. These differences influence fundamental aspects of the polar ecosystems from the amount, thickness and duration of sea ice, to the types of organisms, and the ecology of zooplankton, fish, seabirds and marine mammals. Meridional flows in both the North Pacific and the North Atlantic oceans transport heat, nutrients, and plankton northward into the Chukchi Sea, the Barents Sea, and the seas off the west coast of Greenland. In the North Atlantic, the advected heat warms the waters of the southern Barents Sea and, with advected nutrients and plankton, supports immense biomasses of fish, seabirds and marine mammals. On the Pacific side of the Arctic, cold waters flowing northward across the northern Bering and Chukchi seas during winter and spring limit the ability of boreal fish species to take advantage of high seasonal production there. Southward flow of cold Arctic waters into sub-Arctic regions of the North Atlantic occurs mainly through Fram Strait with less through the Barents Sea and the Canadian Archipelago. In the Pacific, the transport of Arctic waters and plankton southward through Bering Strait is minimal.In the Southern Ocean, the Antarctic Circumpolar Current and its associated fronts are barriers to the southward dispersal of plankton and pelagic fishes from sub-Antarctic waters, with the consequent evolution of Antarctic zooplankton and fish species largely occurring in isolation from those to the north. The Antarctic Circumpolar Current also disperses biota throughout the Southern Ocean, and as a result, the biota tends to be similar within a given broad latitudinal band. South of the Southern Boundary of the ACC, there is a large-scale divergence that brings nutrient-rich water to the surface. This divergence, along with more localized upwelling regions and deep vertical convection in winter, generates elevated nutrient levels throughout the Antarctic at the end of austral winter. However, such elevated nutrient levels do not support elevated phytoplankton productivity through the entire Southern Ocean, as iron concentrations are rapidly removed to limiting levels by spring blooms in deep waters. However, coastal http://dx

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Iron from melting glaciers fuels the phytoplankton blooms in Amundsen Sea (Southern Ocean): Iron biogeochemistry

Cited by 206 publications

References 96 publications

Key role of organic complexation of iron in sustaining phytoplankton blooms in the Pine Island and Amundsen Polynyas (Southern Ocean)

Key role of organic complexation of iron in sustaining phytoplankton blooms in the Pine Island and Amundsen Polynyas (Southern Ocean)

The interdisciplinary marine system of the Amundsen Sea, Southern Ocean: Recent advances and the need for sustained observations

Advection in polar and sub-polar environments: Impacts on high latitude marine ecosystems

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