Explain standing crop in an ecosystem. Draw a pyramid of biomass when a small standing crop of phytoplanktons supports a large standing crop of zooplanktons in the sea

Each trophic level has a certain mass of living material at a particular time called as the standing crop. The standing crop is measured as a mass of living organisms or the number in a unit area. The biomass of a species is expressed in terms of fresh or dry weight.

Inverted pyramid of biomass is a small standing crop of phytoplanktons support a large standing crop of zooplanktons.