The blue-spotted grouper, commonly known as the green spot, is a genus of oyster-shaped heads, fins, and grouper, and it is a warm and watery bottom-level expensive fish. Widely distributed in the western North Pacific, our country is mainly distributed in the South China Sea and the South East China Sea, with more in the South China Sea. It can be caught all year round. In spring and summer, it is the peak season for fishing. The blue grouper is fresh and nutritious, rich in nutrients, and it is highly praised by people. Live fish are sold to the Hong Kong and Macau markets, and they are regarded as superior dishes. Its price is high and its economic value is high. There are more than 10 species of grouper distributed on the coast of China. Among them, the group with higher economic value and more common species are blue grouper, red grouper, grouper, grouper, and grouper. Fish etc. The color of blue grouper is greenish brown, so it is also known as green spot, which is a type of production in China. The grouper is oval in shape, with flat sides, large heads, short and blunt snouts, large mouths, well-developed paved bones, small body scales, strong dorsal fins, and body color that can change with changes in the environment. Adult fish are usually 20-30 cm long.

Groupers prefer to inhabit reefs, gravels, and coral reefs near coastal islands. The inhabited water layer rises and falls as the water temperature changes. Spring and summer are distributed at water depths of 10 to 30 meters. In summer, water depths are 2 to 3 meters. In autumn and winter, when water temperature drops, they swim to deeper waters of 40 to 80 meters. The suitable temperature range is 15 to 34°C, and the optimal water temperature is 22 to 28°C. With a wide salt range, it can survive in salinity above 10‰. For ferocious, ferocious fish, the use of raids to prey on benthic crustaceans, a variety of small fish and cephalopods.

Groupers are male and female, with sexual conversion characteristics. When the first sexual maturity, the whole line of females is converted to males the following year. Therefore, males are significantly larger than females. One week of age can be mature, and the amount of eggs varies with the size of the fish. The amount of spawning of the blue-spotted grouper is about 150,000 to 200,000 eggs. They spawn in batches, produce floating eggs, and are round and have oil balls. After hatching, juveniles grow on the coast. Grouper fish grow rapidly, such as codfish grouper, one-year-old can grow to 250 to 300 grams, the weight of second-instar fish can reach 500 to 600 grams, the third-instar fish weighing 800 to 900 grams; red grouper and Blue grouper, one-year-old fish weighing 200 to 250 grams, second-instar fish weight 400 to 500 grams, the third-instar fish weighing 700 to 800 grams.

The grouper is delicate and delicious, nutritious and highly favored by consumers. Especially in Southeast Asia, Japan and China's Hong Kong and Macau, it is in short supply and expensive. It is a valuable economic fish with high economic value. In addition, the blue-spotted grouper grows fast, has strong adaptability to the environment, and has strong disease resistance. It is the main species in the southern grouper fish breeding industry in China.

Fig Tea

Natural, No-addition, Fig series products

WEIHAI ACCELERATE BIOTECHNOLOGY CO, LTD , https://www.accelerfig.com