Marine fish arowana marine fish, commonly known as red melon, namely large yellow croaker, grouper and large yellow croaker. It is one of the four products in China. The side of the body length is flat, slightly oval, the back of the body is grayish yellow, the center of the scale is grayish brown, and the scales below the lateral line have developed luminous glands and are golden yellow, so it is called yellow croaker. Adult fish are generally 40-50 cm long. It is a warm-water pelagic fish, which likes strong light, turbid water, gregarious and has a wide range of feeding habits. Very sensitive to sound, you can use the telescopic vibration of the swim bladder in the body to make sound, which is often used by fishermen to find fish. South Australia, Shantou Port, Guang 'ao, Haimen and Huilai are all offshore production, and the annual flood season is September-165438+ 10. Before 1956, Pseudosciaena crocea was the main fishing species with high yield. According to records, on March 3rd, 1955, 196.4 tons of arowana was caught in the nets of Jin Fu and Zhougu in Yudou Township, Huilai County. Due to the large-scale development of knocking (ship) operation, cool fishing has been overfished and arowana resources have been plundered. 1956 People's Republic of China (PRC) * * and the State Council explicitly prohibit ship knocking. By the early 1990s, there were still no large fish schools in Chaoshan coastal fishing grounds. Only gill nets, artisanal fishing and trawling are occasionally caught. Arowana has high economic value, tender meat, protein 17.6% and fat 0.8%, and it tastes delicious. Its swim bladder, named Jinlong Jiaozi, is rich in protein, fat, bone glue, calcium, phosphorus, iron and other ingredients, and is a high-grade sea treasure and tonic. In Chaoshan, people often stew pork belly with Jinlong glue as a tonic for lying-in women.