(Table 1) Biomass per area of picoplankton algae, cyanobacteria, and total picoplankton and their contribution to total phytoplankton biomass in 0-200 m layer, supplement to: Mikaelyan, A S (1987): Picophytoplankton of subantarctic waters of the Pacific Ocean. Oceanology, 27(5), 615-620A S Mikaelyan
Abundance of picophytoplankton in the Subantarctic and subtropical frontal zones was found to be 10**6-10**7 cells/l. Biomass of eucaryotes and procaryotes reached 2 g/m**2 and accounted for 1-15% of total phytoplankton biomass. A deep peak in the distribution of phytoplankton abundance was found at 40-120 m. Maximum number of dividing cyanobacteria cells occurred at depths of 40-60 m. An estimate of picophytoplankton production shows that picophytoplankton accounts for 30-40% of total primary production.
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