On...biomass and its calculation

Biomass is the is the total mass of living matter per unit area. Its calculation helps us understand how an ecosystem or an specific species has changed over a period of time and can help us determine the health and evolution of the specimen.

Biomass of an organism can be calculated using the formula

• Biomass = # of organisms * average mass of the organism,

Another way to calculate biomass is to find the difference between the biomass of two time periods of the same ecosystem.

• biomass(net) = increase biomass(gross) -- decrease biomass(gross). 

Bibliography:
Berg, Susan. "How Is Biomass Calculated?." eHow. N.p., 14 Oct 2009. Web. 23 Aug 2010.