2. A pond is stocked with 100 fish in 1997, and it is observed that the fish population doubles every year for the first couple of years In what year a maximum sustainable yield of 2 fish per day, on the average, will occur from this pond? Solution In 1997 the pond is stocked with 100 fishes As per the condition fishes will be doubled every year 1998 200 fishes in the pond 1999 400 fishes 2000 800 fishes in pond (on an average of 2fish/day)..