scallops

[Zhuyin]: shànbèi

Scallops are filter feeders and have the ability to choose the size of their food, but not the species. Appropriately sized food is delivered into the mouth with the oscillation of cilia, and unsuitable particles are excreted from the body through the groin of the foot. Its food intake is related to the filtration rate, which is the lowest at 1-3 o'clock at night. Therefore, the amount of food intake is greatest at night. The main food is organic detritus, microscopic particles suspended in seawater, and plankton, such as diatoms, diflagellated algae, copepods, etc.; Secondly, there are spores of algae, bacteria, etc. The composition of its food species is consistent with that of the species in the environment.

Scallops, like mussels and pearl oysters, are also attached to shallow rocky or sandy seabed with filaments, and generally the right shell is on the bottom and the left shell is flat on the bottom of the sea. Usually do not do much activity, but when the environment is not suitable, you can take the initiative to shed the filaments of your feet and do a smaller range of swimming. In particular, young scallops open and close quickly with shells and swim quickly, which is special among bivalves.

Scallops generally do not show up at low tide, so it is more difficult to catch them. In China's coastal areas, scallop fishing is mainly in the north, and only Donglao Island in the north of Shidao in Shandong Province and Changshan Island in the Bohai Sea are the most famous.

The shells of scallops are colorful and neat and beautiful, which is a good material for making shell carving handicrafts. People who go to the beach for work, travel or recuperation like to collect some scallop shells as souvenirs for friends.

【Ctenophora scallops】(chlamysfarreri)

Varietal source: Yellow Sea

Characteristics: Molluscs, Gills, Heterosaurus, Scallopaceae, Scallops; Lives on 3m~30m reefs and gravel seabed; filter feeding, with phytoplankton as the main bait; Temperature resistance range: 1.5°C~25°C, salt range 16‰~43‰; The spawning period is from May to June; It has a wide range of uses, the meat is delicate, the taste is fresh, and the economic value is high.

It is a natural species in China's sea area. It is suitable for aquaculture in China's vast sea areas, especially in the northern coastal areas. The scallop camp is attached to life, and the foot silk material is developed. Adult shells can reach heights of more than 8 cm. It is named because the foreear of the right shell has a distinct filament hole and several fine ctenophores. The shell surface has fine growth lines, with radial ribs of varying thickness; There are about 10 left shells and about 20 right shells, with small irregular spines on the ribs.

【Gulf scallops】(ar-gopectenirradians)

Breed source: Introduced from the United States in 1982.

Characteristics: Molluscs, Petal Gill Class, Heterocolumna, Scallop Family, Scallop Genus. The shells are fan-shaped, the two shells are almost equal, the hind ears are larger than the front ears, and there are filamentous holes under the front ears. There are 18 radial ribs on the shell surface, and the shell surface is black-brown or brown. The suitable temperature range for growth is 5-30 °C, and the optimal growth temperature is 18-28 °C.

【Ezo scallops】(patinopectenyessoensis)

Breed source: Introduced from Japan in 1982.

Characteristics: Filter-feeding bivalves, molluscs, petalgills, heterocolumns, scallops, scallops. The shell is fan-shaped, the right shell is more prominent, yellowish-white, the left shell is slightly flattened, slightly smaller than the right shell, purple-brown. The shell surface has 15-20 radial ribs, and the lugs on both sides have shallow filament holes. The natural distribution water depth is 6-60m, and the substrate is gravel. Ezo scallops are cold-water shellfish, with a suitable growth temperature range of 5-20 °C and a breeding and spawning water temperature of 5-9 °C. The largest natural growth individual can reach 20cm, weigh 900g, artificially bred for 17-23 months, the average shell length of the individual can reach 10cm, weigh 100-150g, the meat is delicious, and the nutritional value is high.

【Chlamysnobilis)

The shell surface is light purple-brown, light red, yellow-brown or jujube red cloud markings, and the shell height is about the same as the shell length. Radiating ribs are large, about 23. It is produced in the South China Sea and the southern part of the East China Sea, and is a warm-water shellfish. It is found from the low tide line to the deep sea.