1, sea shrimp habitat and distribution: Living in shallow sea with sediment bottom, it is inactive in the daytime, often lurking in the mud, but very lively at night, and occasionally swims to the upper and middle layers of seawater to prey on other zooplankton. Distributed in the Yellow Sea, Bohai Sea and the sea areas north of the Yangtze River estuary, it is a specialty of China.
2. Habitat and distribution of oriental shrimp: It inhabits aquatic algae and grass in rivers, lakes and streams, and is distributed all over the country.
Sea shrimp, also known as red shrimp, red shrimp, big green shrimp, etc., is the general term for the meat or all of aquatic products and marine shrimp. Shrimp is rich in nutrients and delicious, and can be used as food or medicine. Shrimp is mainly distributed in the Yellow Sea, Bohai Sea and the sea areas north of the Yangtze River estuary, and it is a specialty of China.
A large number of blue-black pigments are distributed in the dermis of aquatic crustaceans such as crabs and shrimps, so fresh shrimps and crabs are generally blue. Astaxanthin is a terpene conjugated long-chain antioxidant with strong antioxidant function.
Shrimp is long, with flat sides. The female is about18 ~ 24 cm long, the male is slightly shorter, the body is transparent, the female is brown-blue, and the male is slightly yellow. The whole body is covered with carapace. The breastplate is hard and wide, with a sharp sword zygoma extending from the center of the front end and 7 ~ 9 teeth on the upper edge; The lower edge has 3 ~ 5 teeth. There are 1 pairs of eyes with stalks on the lower sides of the forehead, and 5 pairs of appendages on the head. The first 1 and the second pair become two pairs of whip antennae, and the second pair is very long.
The other three pairs of feet are 1 pair of large jaws and 2 pairs of small jaws, which are part of the mouthparts. There are 8 pairs of chest appendages, of which 3 pairs become feet, which are part of mouthparts, and 5 pairs are walking feet. The ends of the first 3 pairs of walking feet are all pincers, and the third pair is the longest. The last two pairs of ends are claw-shaped. The abdomen has 7 segments, which are obviously segmented and can be flexed; Six pairs of abdominal appendages; The first 1 pair of female inner limbs is extremely small, and the male becomes a genitalia. The sixth pair is caudal limb, short and thick, and the caudal fin is synthesized with the 7th caudal segment of abdomen.
Reference to the above information: Baidu Encyclopedia-Sea Shrimp