Question

Net productivity is measured as

• A. production of $Chl / g$ dry wt/unit area
• B. $CO _{2}$ fixed/g $chl / yr$
• C. $O _{2}$ fixed/g $chl /$ hour
• D. production of $C$ in $g / m ^{2} / yr$.

Answer 1

Answer: (D)

Net productivity is the rate of storage of organic matter which is not used by the consumers. It is equivalent to net primary production minus consumption by the heterotrophic organisms. It is generally expressed as "production of $C$ in $g$ / $m ^{2} /$ day