Put the clams into a basin, add a lot of water and pour in a proper amount of vegetable oil. The principle is that vegetable oil isolates the air, making the clams stand out due to lack of oxygen, thus achieving the cleaning effect.
Spider: species
1. Huangcaozi
Yellow flag [1]? The scientific name is green willow clam, which is produced in the shallow sea of the Yellow Sea. Its shell is yellow, its meat is yellow, it has an axe-shaped shell and dark yellow markings. Clam meat contains protein, multivitamins and nutrients such as calcium, phosphorus, iron and selenium needed by human body. It also contains trace cobalt, which has a good effect on maintaining human hematopoietic function and restoring liver function, and its nutritional value is quite high. Because the waters near Dandong Donggang are rich in nutrients, the seeds of Astragalus here are bigger, fatter, more delicious and more nutritious than those in other places. [2]
2. clam
Meretrix meretrix is a common shellfish in the market, which is widely distributed in the north and south seas of China. Rapid growth, short culture period, strong adaptability (wide temperature, wide salt and wide distribution) and long survival time without water. It is an excellent shellfish suitable for artificial high-density culture and one of the four major cultured shellfish in China.
3. White Spider
White clam is a kind of shellfish rich in the Yellow Sea Beach in Donggang area. It is named because its shell is whiter than other clams and its size is similar to that of chestnut. Its quality and reputation can keep pace with yellow clam and sand clam, and its taste is also very special. Compared with yellow clam and sand clam, it is gentle, euphemistic and gentle.
Biological explanation:
Bivalves 1 family. Global distribution. Represents a small to medium-sized shell of an animal belonging to the genus Corbicula. The shell is thick and firm, and its shape is round or nearly triangular. The shell surface is shiny, with concentric veins, yellow-brown or brown, and the inner surface of the shell is white or blue-purple. The hinge part has three main teeth, the left shell has 1 front and rear teeth, the right shell has two front and rear teeth, and the upper end of the side teeth has serrations. The feet are big and tongue-shaped. Androgyny or hermaphroditism. Mature eggs or sperm are discharged into water for fertilization, develop into larvae, and then sink to the bottom for benthic life. It can mature in about 3 months. There are also types of viviparous. Habitat in fresh water and Yuxian fresh water. Meat is delicious, with high nutritional value and can be eaten. It is also a natural feed for fish and waterfowl. It is also a traditional Chinese medicine, which has the effects of promoting lactation, improving eyesight, diuresis, dehumidification and detoxification. Shells can be calcined with lime. Clam is the second intermediate host of Echinococcus. The shell of Corbicula fluminea in China is about 40 mm long and 30 mm high. The shell is thick and hard, slightly triangular and slightly symmetrical on both sides. The shell surface is yellow-green, dark brown and black with luster, and the inner surface of the shell is lavender, bright purple and porcelain luster. Habitat in rivers and lakes. Edible, can also be used as bait for fish and poultry, and can also be used as farmland fertilizer.