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Diatom Maximum Layer (Biotic Group)

Component: Biotic

Unique Identifier: 485

Biotic Setting Planktonic Biota
Biotic Class Phytoplankton
Biotic Subclass Diatom Phytoplankton
Biotic Group Diatom Maximum Layer
Biotic Community Asterionellopsis Maximum Layer

Definition Relatively thin layer dominated by diatoms at depth in the water column. Layers of high diatom density generally form in the surface mixed layer and have also been found at deep subsurface maxima. These are associated with nutrient or temperature maxima.