why is the pyramid of biomass of phytoplankton inverted - Biology - Ecosystem

Question

why is the pyramid of biomass of phytoplankton inverted ?

Sarina Biswas · Accepted Answer

Reason for pyramid of biomass of phytoplankton
to be inverted:

In aquatic ecosystems in which the producers
are phytoplanktons which have short life spans and rapid turnover
and have lower mass than the
heterotrophs
Where the biomass of trophic level depends
upon the reproductive potential and longevity of the
member
Where the weight of the producers is less
than the weight of the consumers The best example is the pond
ecosystem, where the mass of the producers of the ecosystem, which
are generally the phytoplanktons is always less than the mass of
the consumers in the ecosystem, which are generally fish and other
insects