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Showing 1–9 of 9 results
Advanced filters: Author: M. Ardyna Clear advanced filters

  • Using 25 years of satellite data, this study presents evidence that phytoplankton biomass and bloom phenology in the West Antarctic Peninsula are significantly changing as a response to anthropogenic climate change. These findings raise important questions regarding the effect of these ecological changes on global carbon sequestration and Antarctic food webs in the future.

    • Afonso Ferreira
    • Carlos R. B. Mendes
    • Ana C. Brito
    ResearchOpen Access
    Nature Communications
    Volume: 15, P: 1-11

  • This study reports a dense, late summer phytoplankton bloom in the Southern Ocean that accumulated unusually high levels of organic matter and supported feeding hot spots for birds and whales. The authors show that this recurring open ocean bloom is driven by anomalies in easterly winds that push sea ice southwards and favour the upwelling of deep waters enriched in hydrothermal iron.

    • Sebastien Moreau
    • Tore Hattermann
    • Harald Steen
    ResearchOpen Access
    Nature Communications
    Volume: 14, P: 1-12

  • Primary productivity in the Southern Ocean plays an important role in the drawdown of atmospheric CO2, but phytoplankton growth is limited by iron. Here the authors show that iron from hydrothermal vents fuels massive phytoplankton blooms in the Southern Ocean that have recurred in the same location for decades.

    • Casey M. S. Schine
    • Anne-Carlijn Alderkamp
    • Kevin R. Arrigo
    ResearchOpen Access
    Nature Communications
    Volume: 12, P: 1-11

  • Transient winter restratification events can promote phytoplankton blooms in the North Atlantic subpolar gyre, according to float data. Typical winter conditions feature a deep mixed layer that limits phytoplankton activity.

    • L. Lacour
    • M. Ardyna
    • D. Iudicone
    Research
    Nature Geoscience
    Volume: 10, P: 836-839

  • Marine snow is a major route through which photosynthetically fixed carbon is transported to the deep ocean, but the factors affecting flux are largely unknown. Here the authors use high frequency imaging of marine snow particles collected during phytoplankton blooms to categorize and quantify transport.

    • Emilia Trudnowska
    • Léo Lacour
    • Lars Stemmann
    ResearchOpen Access
    Nature Communications
    Volume: 12, P: 1-13

  • The North Atlantic current has been suspected to trigger intrusions of temperate marine species in the Arctic. Here, Oziel and colleagues reveal the link between the poleward intrusion of the temperate coccolithophore Emiliania huxleyi and the North Atlantic current, showing evidence for bio-advection as an important mechanism.

    • L. Oziel
    • A. Baudena
    • M. Babin
    ResearchOpen Access
    Nature Communications
    Volume: 11, P: 1-8

  • Deposition of Siberian wildfire aerosols, which contained nitrogen, enhanced phytoplankton growth in the eastern Eurasian Basin of the Arctic Ocean in summer 2014, suggest satellite-based ocean color data and atmospheric transport modeling.

    • Mathieu Ardyna
    • Douglas S. Hamilton
    • Kevin Robert Arrigo
    ResearchOpen Access
    Communications Earth & Environment
    Volume: 3, P: 1-8

  • The Southern Ocean represents a substantial carbon sink and heavily influences global carbon fluxes. This Review describes how an expanding suite of observations are providing increasing insight into the contribution of biota and plankton to the carbon cycle in the Southern Ocean.

    • Philip W. Boyd
    • Kevin R. Arrigo
    • Sandy J. Thomalla
    Reviews
    Nature Reviews Earth & Environment
    Volume: 5, P: 390-408