-
Article
The role of biota in the Southern Ocean carbon cycle
The Southern Ocean, although relatively understudied owing to its harsh environment and geographical isolation, has been shown to contribute substantially to processes that drive the global carbon cycle. For e...
-
Article
Open AccessUCYN-A/haptophyte symbioses dominate N2 fixation in the Southern California Current System
The availability of fixed nitrogen (N) is an important factor limiting biological productivity in the oceans. In coastal waters, high dissolved inorganic N concentrations were historically thought to inhibit d...
-
Article
Open AccessMassive Southern Ocean phytoplankton bloom fed by iron of possible hydrothermal origin
Primary production in the Southern Ocean (SO) is limited by iron availability. Hydrothermal vents have been identified as a potentially important source of iron to SO surface waters. Here we identify a recurri...
-
Article
Open AccessZooplankton and micronekton respond to climate fluctuations in the Amundsen Sea polynya, Antarctica
The vertical migration of zooplankton and micronekton (hereafter ‘zooplankton’) has ramifications throughout the food web. Here, we present the first evidence that climate fluctuations affect the vertical migr...
-
Article
Spatial and temporal variation of photosynthetic parameters in natural phytoplankton assemblages in the Beaufort Sea, Canadian Arctic
During summer 2008, as part of the Circumpolar Flaw Lead system study, we measured phytoplankton photosynthetic parameters to understand regional patterns in primary productivity, including the degree and time...
-
Article
Magnitude of oceanic nitrogen fixation influenced by the nutrient uptake ratio of phytoplankton
The ratio of nitrogen to phosphorus in phytoplankton varies greatly with taxa and growth conditions. An ecosystem model suggests that the relative abundance of fast- and slow-growing phytoplankton controls the...
-
Article
Marine manipulations
The effect of increasing levels of atmospheric carbon dioxide on carbon uptake in and export from the upper ocean is one of the big questions in environmental science. But it can be tackled experimentally.
-
Article
Erratum: Marine microorganisms and global nutrient cycles
Nature 437, 349–455 (2005) In this Review, the digital object identifier (DOI) number was incorrectly given as doi:10.1038/nature04158. The correct DOI number for this Review is doi:10.1038/nature04159.
-
Article
Marine microorganisms and global nutrient cycles
The way that nutrients cycle through atmospheric, terrestrial, oceanic and associated biotic reservoirs can constrain rates of biological production and help structure ecosystems on land and in the sea. On a g...
-
Article
Agricultural runoff fuels large phytoplankton blooms in vulnerable areas of the ocean
Runoff of nutrients from agricultural regions and cities are a growing threat to the world's oceans, as highlighted in the Pew Oceans Commission report (www.pewoceans.org
-
Chapter and Conference Paper
Discovering Ecosystem Models from Time-Series Data
Ecosystem models are used to interpret and predict the interactions of species and their environment. In this paper, we address the task of inducing ecosystem models from background knowledge and time-series d...
