optimum yield(maximum sustained yield, MSY) The theoretical point at which the size of a population is such as to produce a maximum rate of increase. If the population has a symmetrical, S-shaped growth curve this is equal to half the carrying capacity. The concept is of practical use in farming and has been applied widely to commercial fisheries. It forms the basis for models that predict the stocking density required to maintain optimum fish production, and the harvesting methods and food supply needed to maintain production at that level.

optimum yield (maximum sustained yield, MSY) The theoretical point at which the size of a population is such as to produce a maximum rate of increase. If the population has a symmetrical, S-shaped growth curve this is equal to half the carrying capacity. The concept is of practical use in farming and has been applied widely to commercial fisheries. It forms the basis for models that predict the stocking density required to maintain optimum fish production, and the harvesting methods and food supply needed to maintain production at that level.

optimum yield (maximum sustained yield, MSY) The theoretical point at which the size of a population is such as to produce a maximum rate of increase, equal to half the carrying capacity. The concept is of practical use in farming and has been applied widely to commercial fisheries. It forms the basis for models that predict the stocking density required to maintain optimum fish production, and the harvesting methods and food supply needed to maintain production at that level.