can seaside shells, shells are edible seaside shells seafood, can be processed to make a variety of delicious dishes. However, it is important to select them carefully to avoid contaminated shells and to be aware of your body's reaction after eating them.
Seashells by the SeaOn a trip to Hainan, playing by the sea is a must.
As soon as you arrive at the beach in the morning, there are not many people. The clean sandy beach has a skein of shells left behind when the tide goes out. Many small shells lying quietly there, telling people that the sea has been here.
Seeing the shells, children are very happy. They have not yet played in the water, first pick up the shells. I didn't prepare a bag for the shells in advance, so I didn't let the kids pick up too many.
The shells are not big but very beautiful. There are purple, white, yellow, pink and so on, and there are spots, stripes, folds, color gradient, clean and bright, exquisite.
You see, the white jade, crystal clear, bright and moist; the longitudinal lines like a fan, subtle and elegant, delicate and exquisite; and the not quite regular folded pattern, ordinary through the elegant and mysterious, attracting people to appreciate and explore.
Each shell is smooth and clean, it can be seen that they are after countless times of seawater, only to become so beautiful, warm as jade.
There is also a large shell remains, washed by the sea are not angular, peculiar shape, smooth and round, as if a piece of white jade. It also has a small piece of reddish-brown on the back, as if it were a jade skin, so that when you look at it, it looks even more like sheep's fat jade, a piece of sheep's fat jade naturally carved by seawater.
There is also a small delicate, oval, about five millimeters long, solid, as if it were a jade ring, white and crystal, spiritual and round.
There are also some strange shaped reefs, the children are also loved.
Looking at these lovely shells and strange reefs, really marveled at nature's ingenious work.
Some of the seashells on the beach look like what some look like?
Shells on the beach are like:
1, the shells look like a lot, some like snails, some like combs, some like fans, some like round buns, some like commas, some like screwdrivers, some like bamboo shoots, and some like hedgehogs.
2. The beautiful shells on the beach look like tiny butterflies, lying quietly in the embrace of the lilies.
3. The shells on the beach are like all kinds of small animals, some are like stars, some are like squares, and some are like cookies.
4. The shells on the beach are like all kinds of little animals, some like turtles, and some like fans.
5. There are many multicolored shells on the beach, just like the stars in the sky, which are too many to count.
6. Some shells are like a small tower, high, big at the bottom and pointed at the top; some are like a piece of turtle shell, high in the middle and low at the sides, with a pattern on it; some are like a peacock's tail.
7, shells of all kinds, some like a crab lying down; some like a curved fan; some like a long, thin earthworm; some like a big round pebbles. Very beautiful.
What are the shellfish in the seaThe shellfish in the sea are oysters, mussels, clams, razor clams and so on. Shellfish are mollusks that have shells. In the scientific classification contains bivalves (bivalves), most of the gastropods (snails), polyplacophora (stone turtles), and diggeropods (horn shells), etc. The shellfish are also classified into the following categories:
Shellfish, cephalopods, mussels, and razor clams. Although manatees and cephalopods (squid, octopus) are also mollusks, their shells are degraded and they are not considered shellfish.
Shellfish body soft, left and right symmetrical, not divided into sections, by the head, feet, visceral sac, coat membrane and shell 5 parts. The head has a mouth, eyes and tentacles and other sensory organs. The foot is on the ventral side of the body and consists of strong muscles, which are organs for crawling, digging up mud and sand, or swimming. The internal capsule is located on the back of the body and includes internal organs such as the heart, kidneys, stomach, intestines, digestive and reproductive glands. The coat membrane is encapsulated on the outside of the body and consists of two layers of epidermis and connective tissue and a little muscle between them. The epidermal cells of the coat membrane secrete shells, and both the coat membrane and shells are protective organs of shellfish.
Why are there shells on the beachBecause some light-weight shells (newborn) or shells with weak resistance will be light when they die because no organisms survive inside the shell. When the sea rises in the evening, those light weight shells are washed ashore with the waves.
Unmature shells are very similar to full-grown shells, except for their size. Bivalves grow along the edges of both shells, and the direction of growth does not change as the shell grows. Gastropods, on the other hand, grow in a self-coiling fashion along the mouth of the spiral tube.
Mollusks have adapted to a variety of environments, from rocky outcrops washed by the sea day and night to the murky depths of the ocean floor, where they have their own specialized mollusc fauna.
The tides influence the characteristics and distribution of mollusks growing on the seashore, and abundant sunlight provides an abundance of food. The variety of sea shells that mollusks are best suited to inhabit in the tropics is breathtaking.
Extended information
Research has shown that shells contain a variety of biologically active ingredients. On the one hand, these components have good bioactivity themselves, and on the other hand, their microstructure changes during processing and extraction, which stimulates their bioactivity.
Research has found that active calcium oxide from scallop shells has better activity and more obvious antibacterial effect than ordinary calcium oxide; the use of discarded shells to prepare bioactive materials, hydroxyapatite, using a water bath heating method, shell powder as raw material, diammonium phosphate as the source of phosphorus, urea as an additive, and successfully prepared a high purity phase, size uniformity and controllable nano-banded hydroxyapatite.
Shell as raw material was immersed in phosphate buffer for 24 hours, and a layer of carbonate-type apatite with lamellar structure was deposited on the surface of shell by dissolution-recrystallization reaction, and the results showed that the prepared apatite had excellent in vitro bioactivity; therefore, based on the bioactivity of shell and its components, it can be used for the research of shell-based biomaterials and bioactive substances.
In addition, from the structure of shells, the current resource utilization technology of shell waste at home and abroad was summarized; the advantages of shell powder and lightweight calcium carbonate in improving the strength properties and hand-copying performance of hand-copied paper were comparatively analyzed; and it was found that shells have certain medicinal value.
Baidu Encyclopedia - Shells
Why are there shells on the seashore?Shells on the seashore are usually shells left behind by mussels that have died of disease, or natural disasters.