Consumption of silicic acid below the euphotic zone by sedimenting diatom blooms in the Barents Sea
Journal article, Peer reviewed
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Date
1987-03-23Metadata
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Original version
http://dx.doi.org/10.3354/meps036307Abstract
Massive sedimentation of spring phytoplankton
blooms occurs in the Barents Sea as in many other shelf sea
environments. Associated with this sedimentation there is a
large decrease in concentration of dissolved shcic acid below
the nitracline. This decrease is apparently related to resting
spore formation of the dominant &atom species Chaetoceros
socids. The deep shcic acid consumption seems to be a
regular and extensive phenomenon which results in a vertical
separation of the shcic acid gradient from the nitracline. This
d disfavour further growth of diatoms during the summer
season due to reduced upward transport of silicic acid by
vertical mixing.