Not a Fact Anymore
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Category

Oceanography

Explore the 1 entry currently assigned to this category. These counts describe this curated catalogue, not the size or rate of change of the field itself.

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Entries1In this catalogue
Statuses represented1Corrected
Median lifespan—No quantitatively comparable entries
Representative changes1993 → 1993Oldest to newest change anchor

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Browse Oceanography

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Not a fact anymore

Open-ocean regions rich in nitrate and phosphate were thought to contain enough iron that iron deficiency could not explain their low phytoplankton productivity.

What we know now

Some ocean regions contain plenty of major nutrients such as nitrate and phosphate but still support surprisingly little phytoplankton growth. In several of these regions, the missing ingredient is iron: tiny amounts of bioavailable iron can limit the microscopic algae that form the base of the food web.

Status
Corrected
Category
Oceanography
Accepted for
Not quantified
Changed approximately
1980s–1990s
Read the evidence →
Open-ocean regions rich in nitrate and phosphate were thought to contain enough iron that iron deficiency could not explain their low phytoplankton productivity.Oceanography · Corrected · Lifespan not quantified