The average size of the fish in a year-class at the time when the instantaneous rate of natural mortality equals the instantaneous rate of growth in weight for the year-class as a whole. At this size, the biomass of the age class is maximum. Also referred to as Optimum size.
CRITICAL SIZE
Meaning of CRITICAL SIZE in English
Fishery English glossary. Английский глоссарий рыболовства . 2012