Bass live in shallow estuaries, salt wide, seedlings hatch in the salinity of about 22 ‰ seawater, and then up the river to the salty and freshwater confluence of the estuarine life, and can enter the freshwater water foraging and growth, but most of the adults in the salty and fresh water habitat. Perch is a ferocious carnivorous fish, large food intake, a feeding up to 5% of body weight -

12%, predation intensity in the spring and summer seasons of the strongest crack, fry to flexipods and mysid shrimp as bait, grow to 10 centimeters in length, then prey on small fish and shrimp. Perch growth rate is faster, the breeding period is generally in November to January of the following year, the fry grow to the end of the body length of 25 centimeters, weighing 0?5 city pounds, 6-year-old fish body length of 0?8 meters, the largest individual up to 1 meter, weighing 15-20 kilograms. Artificially cultured bass grow faster, usually 280 days of culture can reach more than one city catty. Perch in the water temperature of 14 ℃ above the normal feeding growth in the region can be natural overwintering, conducive to the next year of breeding to become a large size commercial fish balanced market.