CATDOLL : CATDOLL: Are clams freshwater or saltwater?

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.

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.

Additional information

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Flower clams, also known as flower clams and mango snails in Hainan, are a mollusk with a slender, long oval shell.

The shell surface is yellow-brown or light purple, densely covered with irregular purple Bowen-shaped patterns, and often covered with a layer of shiny shell, with dense concentric growth lines. The inside of the shell is white or slightly purple, and the mantle sinus is shallowly curved.

Flower clams generally refer to the Philippine clam, which is also commonly known as the variegated clam or the Philippine clam. The shell length is 2.5-5.7 cm. The commercial size is an average of 40 mm. It is a common shellfish.

The shell is solid, with equal lobes on both sides; the two sides are unequal, with the beak at the top of the shell located in the front half; the shape is slightly oval. The ligament is embedded and does not protrude from the shell surface. The broad, brown, oval-arched body extends almost halfway to the rear edge.

Shellfish are seafood products widely distributed in the north and south seas of China. They grow rapidly, have a short breeding cycle, are highly adaptable (wide temperature, wide salinity, and wide distribution), and can survive long out of water. They are an excellent shellfish suitable for high-density artificial breeding and are one of the four major farmed shellfish in China.

A species found in the subtropical to low temperate zones of the western Pacific Ocean and in temperate regions of Europe. Wild populations are found in the Philippines, the South and East China Seas, the Yellow Sea, the Sea of ​​Japan, the Sea of ​​Okhotsk, and around the Southern Kuril Islands. Its aquaculture began with traditional fishing activities in these areas through the collection of wild seed.