Critical depth
Hypothesized depth at which phytoplankton growth is matched by losses / From Wikipedia, the free encyclopedia
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This article is about the biological oceanography term. For ocean acoustics, see SOFAR channel. For the video game, see Critical Depth (video game).
In biological oceanography, critical depth is defined as a hypothetical surface mixing depth where phytoplankton growth is precisely matched by losses of phytoplankton biomass within the depth interval.[1][note 1] This concept is useful for understanding the initiation of phytoplankton blooms.