Cited by 2,848Marine and coastal ecosystemsPaleontology and Stratigraphy of FossilsAquatic Ecosystems and Phytoplankton Dynamics

Biogeochemical Controls and Feedbacks on Ocean Primary Production

Falkowski, Paul G., Barber, Richard T., Smetacek, Victor·1998·Science

Abstract

Changes in oceanic primary production, linked to changes in the network of global biogeochemical cycles, have profoundly influenced the geochemistry of Earth for over 3 billion years. In the contemporary ocean, photosynthetic carbon fixation by marine phytoplankton leads to formation of ∼45 gigatons of organic carbon per annum, of which 16 gigatons are exported to the ocean interior. Changes in the magnitude of total and export production can strongly influence atmospheric CO 2 levels (and hence climate) on geological time scales, as well as set upper bounds for sustainable fisheries harvest. The two fluxes are critically dependent on geophysical processes that determine mixed-layer depth, nutrient fluxes to and within the ocean, and food-web structure. Because the average turnover time of phytoplankton carbon in the ocean is on the order of a week or less, total and export production are extremely sensitive to external forcing and consequently are seldom in steady state. Elucidating the biogeochemical controls and feedbacks on primary production is essential to understanding how oceanic biota responded to and affected natural climatic variability in the geological past, and will respond to anthropogenically influenced changes in coming decades. One of the most crucial feedbacks results from changes in radiative forcing on the hydrological cycle, which influences the aeolian iron flux and, in turn, affects nitrogen fixation and primary production in the oceans.

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Registry

Crossref · 10.1126/science.281.5374.200

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99 of 99 references verified0 citation errors · 0 not checkable

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  • Algae efficiently use CO2 and are responsible for more than 40% of global carbon fixation, with the majority of this productivity coming from marine microalgae.

    “Algae efficiently use CO2, and are responsible for more than 40% of the global carbon fixation, with the majority of this productivity coming from marine microalgae [14,15].”

    From Biofuels from algae: Challenges and potential (2010) · cites this paper as [14]

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Authors
Falkowski, P. G., Barber, R. T., & Smetacek, V.
Affiliations
Rutgers, The State University of New Jersey (US)
Corresponding author
Falkowski, Paul G.
Venue
Science
Published
1998-07-10
Volume
281
Issue
5374
Pages
200-206
ISSN
  • 0036-8075 (ISSN-L)
  • 1095-9203
OpenAlex
W2105796581
Cited by
2,848
References
99
Citations by year
2026: 165 · 2025: 151 · 2024: 178 · 2023: 155 · 2022: 195 · 2021: 170 · 2020: 153 · 2019: 136 · 2018: 122 · 2017: 121 · 2016: 111 · 2015: 110 · 2014: 125 · 2013: 123 · 2012: 97
FWCI
33.37
Type
journal article
Language
en
Open access
closed
Locations
  • Science (publishedVersion)
  • PubMed (publishedVersion)
  • Helmholtz-Zentrum für Polar-und Meeresforschung (Alfred-Wegener-Institut) (submittedVersion)
Topics
  • Physical Sciences › Earth and Planetary Sciences › Oceanography › Marine and coastal ecosystems
  • Physical Sciences › Earth and Planetary Sciences › Paleontology › Paleontology and Stratigraphy of Fossils
  • Physical Sciences › Environmental Science › Environmental Chemistry › Aquatic Ecosystems and Phytoplankton Dynamics
Keywords
ocean primary productivity, phytoplankton, export production, biogeochemical cycles, carbon cycle, atmospheric CO2, mixed layer depth, nutrient fluxes, food web structure, nitrogen fixation, radiative forcing, water cycle, climate feedbacks, sustainable fisheries, paleoceanography

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