Living in the mud and sand bottom with water depth 10 meter above the low tide line in the shallow sea of the inner bay, especially near the estuary where fresh water flows out, it is mostly 4-8 meters.
morphological character
The adult shell is 4-5 cm long, the shell surface is oval, the two shells are unequal, and the top of the shell protrudes outward and rolls inward, leaning forward; There are 30-44 radial ribs on the shell surface, and square nodules appear on the ribs; The hinge is straight, with about 50 teeth; The shell surface is white and covered with brown fluff epidermis.
Shouguang
territorial scope
Shouguang square fish are mainly distributed in the coastal waters of Yangkou Town within the administrative area of Shouguang City, Shandong Province, with geographical coordinates of1kloc-0/903' 00 "~165438+0907' 00" and 3718' 00 "~ 37" north latitude.
Product quality characteristics
1, product quality characteristics: external sensory characteristics: Scapharca subcrenata is a bivalve mollusk with a short and wide oval shell, which is hard and extremely swollen. The two shells are different in size, the right shell is slightly smaller than the left shell, and there are 30-34 radial ribs protruding from the shell surface, and square nodules appear on the ribs, especially the left shell. Internal quality index of Scapharca subcrenata: Scapharca subcrenata is delicious, high in protein and low in fat, and contains amino acids, vitamins and other nutrients, which are easy to be absorbed by human body. It is rich in unique hemoglobin and vitamins, so it also has medicinal value. The meat is sweet and warm, and has the functions of enriching blood, warming middle warmer, invigorating stomach and promoting digestion. Through the detection of Scapharca Shouguang, we know that it is rich in calcium, and the calcium content per kilogram exceeds 596 mg. As we all know, calcium is an important nutrient that provides all functions of the body. Most people know the importance of calcium in ensuring strong bones and teeth and preventing osteoporosis. Once calcium is insufficient, it will easily lead to tooth decay, osteoporosis and osteomalacia, child dysplasia, low back pain and knee pain. Therefore, eating more boat-fruited Sterculia in Shouguang is of positive significance to prevent the occurrence of the above diseases. According to the Pharmacopoeia, Scapharca subcrenata has the function of "enriching blood and benefiting qi, benefiting blood color (increasing heme)". 2. The quality and safety regulations are strictly in accordance with the production requirements mentioned in the above-mentioned "three specific production modes": in addition to the production requirements in production environment, seed stocking and production management, GB 18406.4-200 1- safety requirements for agricultural products and pollution-free aquatic products, NY5052- pollution-free food mariculture water quality, NY570 1-. NY5073-200 1- Organize the development and production according to the indexes specified in the limit of toxic and harmful substances in pollution-free food and aquatic products, improve the quality management rules, and ensure the quality and safety of Shouguang yellow croaker. Scapharca subcrenata is a treasure all over the body, and its meat is used as medicine, which has the effect of "removing blood stasis and resolving phlegm" and is also an important calcium supplement additive for livestock and poultry feed, so there is no problem of "three wastes".