CATDOLL : CATDOLL: Are clams freshwater or saltwater?

1. Are clams freshwater or saltwater?

Clams are marine aquatic products.

Flower clams generally refer to Philippine curtain clams, which are a species from the subtropical to low cold temperate zones of the western Pacific Ocean and are distributed in temperate regions of Europe. Wild populations are found in the Philippines, the South China Sea and the East China Sea, the Yellow Sea, the Sea of ​​Japan, the Sea of ​​Okhotsk, and around the Southern Kuril Islands. Its cultivation began with traditional fishing activities in these areas by collecting wild clam seed.

It is widely distributed in the north and south seas of China, Dalian and Changxing Island in Liaoning, Beidaihe in Hebei, Qingdao and Yantai in Shandong, Lianyungang in Jiangsu, Nanji and Xiangshan in Zhejiang, Pingtan and Xiamen in Fujian, Haimen and Shanwei in Guangdong, and Hong Kong, and is also found in North Korea.

Introduction to Clams

The clams (Philadelphus philippinosus) are strictly dioecious, with gonads in diffuse tissues closely connected to the digestive system. The reproductive period varies according to the geographical area, and spawning is usually carried out at water temperatures of 20-25°C. Sexual activity is dormant from late autumn to early winter. Gamete formation in the wild takes 2-5 months, followed by spawning.

The Philippine clam (Philippine clams) grows rapidly, has a short breeding cycle, is highly adaptable (wide temperature, wide salt, and wide distribution), and can survive long out of water. It is an excellent shellfish suitable for high-density artificial breeding and is one of the four major farmed shellfish in China.

2. Questions about leeches and leeches

Leeches refer to aquatic animals of the class Hirudinidae, commonly known as leeches (some people also call them locusts, but this is actually a typo). In the 2005 Chinese Pharmacopoeia, only three types of leeches were included in traditional Chinese medicine: Whitmania pigraWhitman, Hirude nipponica Whitman, and Whitmania acranulataWhitman, which are dried and used as medicine. In zoology, these three animals are Hirudinella serrata, Hirude nipponica Whitman, and Hirudinella acranulata. However, there are about 100 species of leeches that have been identified in my country, and each leech has certain medicinal value.

According to their feeding habits, leeches can be divided into blood-sucking leeches and non-blood-sucking leeches. Non-blood-sucking leeches mainly feed on the body fluids of snails and other mollusks. The most widely distributed non-blood-sucking leeches in my country are the broad-bodied golden line leeches, which are the leeches (in a narrow sense) referred to in the pharmacopoeia. Not many people know that leech is the scientific name of leeches, so many people think that leeches and leeches are two different animals, and there is even a misunderstanding that leeches and leeches have different feeding habits.

3. What will happen if you boil leeches and drink water?

If it were me, I'd vomit!

4. What are leeches?

Leeches, commonly known as leeches, grow and reproduce in inland freshwater areas. They are traditional special medicinal aquatic animals in my country. Their dried products are used as Chinese medicine after processing. They have the effects of treating stroke, hypertension, clearing blood stasis, amenorrhea, and traumatic injuries. In recent years, new discoveries have shown that leech preparations are effective in preventing and treating cardiovascular and cerebrovascular diseases and fighting cancer. Historically, leeches were mainly caught naturally. Due to the abuse of pesticides and fertilizers in recent years, as well as the pollution of the environment by the "three wastes" of industry and agriculture, wild natural resources have been sharply reduced. With the in-depth development of the medicinal value of leeches, their market demand potential is huge. Around 1995, natural seedlings began to be caught in southern China, and artificial breeding was carried out for the first time, which was successful. The northern region has not been breeding due to seedling and technical reasons.