Largemouth bass, also known as California bass and largemouth bass, is a freshwater fish native to North America. The body is flat on the side, spindle-shaped, with thick back flesh, the color is cyan or olive green, and the abdomen is white. The mouth is large and has a strong predation ability. Is a typical carnivorous freshwater fish, mainly to small fish, shrimp, crab and other invertebrates for food. It inhabits grassy still-water lakes and streams and prefers to group in clear, slow-flowing waters. Fast growth rate, strong adaptability, wide tolerance to salinity, can survive in fresh water and low salinity brackish water. The meat is delicious, no intermuscular thorns, suitable for eating, and has high economic value.

It is a common marine shellfish that is loved by people for its delicious meat and rich nutritional value. Shells are wedge-shaped, with a black brown surface and a gray blue interior, giving them a pearl like luster. Usually inhabiting coastal rocks, especially in areas with rapid seawater currents and clear water quality. It has strong resistance to adverse environments such as red tide and sewage, and mainly feeds on organic debris and diatoms. The reproductive ability is strong, and female clams can lay up to 25 million eggs. Strong vitality and easy to cultivate artificially. In terms of consumption, the meat is delicious, rich in protein, essential amino acids, vitamins, and minerals, and is known as the egg of the sea.

It is a marine fish widely distributed in the Indo Western Pacific region, commonly found along the coast of China. The body is slender, with a deep blue black color and silver luster on the sides. The mouth is small and pointed, and the two jaws have fine teeth. They usually live in rocky areas or near coral reefs near the coast, feeding on small fish, crustaceans, etc. Black snapper has delicious meat and rich nutrients, making it one of the favorite edible fish species among people. It also has certain medicinal value, and its meat and organs can be used to treat various diseases. The breeding season usually occurs in spring, when they gather in the nearshore reef areas to lay eggs. Due to overfishing, the population of black snapper has decreased and requires strengthened protection.

The scientific name Oncorhynchustshawytscha is a species of Pacific salmon in the Salmonidae family, mainly distributed in the North Pacific and its coastal rivers. This fish is known for its large size and delicious meat, and is one of the important economic fish species. The body length can reach 150 centimeters and the weight can reach 45 kilograms. Having a streamlined body and strong muscles, capable of long-distance migration. Every autumn, adult salmon return from the ocean to the rivers where they were born for breeding. After laying eggs in freshwater, they will soon die, completing the cycle of life.