Iron deficiency limits phytoplankton growth in the north-east Pacific subarctic
@article{Martin1988IronDL, title={Iron deficiency limits phytoplankton growth in the north-east Pacific subarctic}, author={John H. Martin and Steve E. Fitzwater}, journal={Nature}, year={1988}, volume={331}, pages={341-343} }
An interesting oceanographic problem concerns the excess major plant nutrients (PO4, NO3, SiO3) occurring in offshore surface waters of the Antarctic1–3 and north-east Pacific subarctic Oceans4. In a previous study5, we presented indirect evidence suggesting that inadequate Fe input was responsible for this limitation of growth; recently we had the opportunity to seek direct evidence for this hypothesis in the north-east Pacific subarctic. We report here that the addition of nmol amounts of…
1,877 Citations
Iron and Phytoplankton Growth in the Subarctic North Pacific
- Environmental Science
- 2011
Iron availability has been shown to have potential controls on phytoplankton growth, nutrient utilization, algal community composition, and the ecosystem structure in the subarctic North Pacific.…
Iron biogeochemistry in (sub-) Polar waters
- Environmental Science
- 2009
Iron represents an important control on primary production in high nutrient low chlorophyll (HNLC) regimes and has received considerably attention during the last two decades. This work has focussed…
Importance of iron for plankton blooms and carbon dioxide drawdown in the Southern Ocean
- Environmental ScienceNature
- 1995
THE iron hypothesis1–3—the suggestion that iron is a limiting nutrient for plankton productivity and consequent CO2 drawdown— has been tested by small-scale experiments in incubation bottles in the…
Iron stress in the Pacific region of the Southern Ocean: evidence from enrichment bioassays
- Environmental Science
- 1998
The effect of iron on phytoplankton physiology in a scarcely investigated part of the Pacific region of the Southern Ocean was studied during an expedition aboard RV 'Polarstern'. Physiological…
Evidence for phytoplankton iron limitation in the southern California Current System
- Environmental Science
- 2007
Observations of phytoplankton iron limitation in the world's oceans have primarily been confined to high-nutrient, low-chlorophyll (HNLC) regimes, found in the western equatorial and sub- arctic…
A review: iron and nutrient supply in the subarctic Pacific and its impact on phytoplankton production
- Environmental ScienceJournal of Oceanography
- 2021
One of the most important breakthroughs in oceanography in the last 30 years was the discovery that iron (Fe) controls biological production as a micronutrient, and our understanding of Fe and…
Iron limitation of phytoplankton photosynthesis in the equatorial Pacific Ocean
- Environmental ScienceNature
- 1994
Results show that iron limits phytoplankton photosynthesis in all size classes in this region by impairing intrinsic photochemical energy conversion, thereby supporting the hypothesis of physiologi-cal ('bottom up') limitation by this element.
Iron-limited diatom growth and Si:N uptake ratios in a coastal upwelling regime
- Environmental ScienceNature
- 1998
There is compelling evidence that phytoplankton growth is limited by iron availability in the subarctic Pacific, and equatorial Pacific and Southern oceans. A lack of iron prevents the complete…
Substantial advective iron loss diminishes phytoplankton production in the Antarctic Zone
- Environmental Science
- 2003
After 1 decade of research it is a well‐established fact that iron limits photosynthetic CO2 fixation and phytoplankton growth in the Southern Ocean; intense blooms are scarce. However, the input of…
Iron limitation of the postbloom phytoplankton communities in the Iceland Basin
- Environmental Science
- 2009
Measurements performed on a cruise within the central Iceland Basin in the high‐latitude (>55°N) North Atlantic Ocean during late July to early September 2007 indicated that the concentration of…
References
SHOWING 1-10 OF 22 REFERENCES
Nutrient Cycles in Antarctic Marine Ecosystems
- Environmental Science
- 1985
Studies of mineral cycling in the marine environment can be very informative in regard to understanding food web dynamics and general functioning of the ecosystem. Although emphasis is placed on the…
Antarctic Nutrient Cycles and Food Webs
- Environmental ScienceSpringer Berlin Heidelberg
- 1985
This chapter discussesNutrient Cycling in Relation to Biological Productivity in Antarctic and Sub-Antarctic Terrestrial and Freshwater Ecosystems, and Spatial Variability of Phytoplankton and the Distribution and Abundance of Krill in the Indian Sector of the Southern Ocean.
Changes in atmospheric CO2: Influence of the marine biota at high latitude
- Environmental Science
- 1984
Approximately half of the nitrogen and phosphorus entering deep waters of the contemporary ocean are transported from the surface in inorganic form as preformed nutrients. A simple model for ocean…
A new model for the role of the oceans in determining atmospheric PCO2
- Environmental ScienceNature
- 1984
Recent ice-core measurements have revealed that the atmospheric CO2 level increased comparatively rapidly by about 70 p.p.m. at the end of the last ice age1. Here we present an ocean–atmosphere model…
Rapid atmospheric CO2 variations and ocean circulation
- Environmental Science, GeographyNature
- 1984
Studies on air trapped in old polar ice1,2 have shown that during the last ice age, the atmospheric carbon dioxide concentration was probably significantly lower than during the Holocene—about 200…
Abundance of chemical elements in the continental crust: A new table: Geochimica e t Cosmochimica Ac
- Geology
- 1964
Polar ice evidence that atmospheric CO2 20,000 yr BP was 50% of present
- Environmental Science, GeologyNature
- 1980
Analysis of the air enclosed in polar ice (∼0.1 ml per g of ice1) provides one of the most promising ways of discovering atmospheric composition over the past 100,000 yr. Until now, because of an…
Ice age aerosol content from East Antarctic ice core samples and past wind strength
- Environmental Science, GeographyNature
- 1981
Isotopic analysis of Antarctic deep cores provides valuable information on the Earth's past climate. Past atmospheric trace element contents of continental, volcanic, marine or other origins can also…
Ice core sample measurements give atmospheric CO2 content during the past 40,000 yr
- Environmental Science, GeologyNature
- 1982
Recent measurements1,2 on ice samples from Camp Century (Greenland, 77°10'N, 61°08'W), Byrd Station (Antarctica, 80°01'S, 110°31'W) and Dome C (74°40'S, 125°10'E) suggest that during the late part of…