Lobster shelling essay my little shrimp shelling essay

I discovered the mystery of lobster molting essay].

I discovered the mystery of lobster molting This thing happened during a summer vacation, my father bought me 1 pound of lobster to eat, I was very bored, and suddenly an idea germinated: Why don't I pick out a few to observe them? It's better to act than to move, so I picked out 4 strong lobsters, and I discovered the mystery of lobster molting.

I put them in my "aquarium", which is a big red basin with a lot of pebbles and strange conch shells and shells, as well as some natural oxygen, aquatic plants. I think they're going to love this new home. As soon as they got in, they were looking around, and I thought:

They may be looking for a place to make a home. The next day, I went to see them, I gently opened the water weeds, and was surprised to find that there were only 3 lobsters left, and I was the second monk - I didn't know what to do, and suddenly 2 thick whiskers stretched out from a large conch shell, heh, you little thing will really find a home! I looked at them seriously and couldn't help but exclaim:

Ah, the hermit crab in the book! I then rummaged through the cabinets and found 2 large conch shells, and the other two also got in, and the other one saw that they all had homes, and I also found a few shells to hide myself, the sixth grade essay "I found the mystery of lobster molting essay". On the third day, I got up early in the morning and went to see the four little ones, and I gently brushed the water weeds again, only to find only an empty shell of a lobster next to a pebble.

I was so sad at this time, one of the lobsters died, and the other three must have been so hungry that they ate their own kind, and I had read books that some animals were so hungry that they would eat their own kind of cannibalism, and they ate them without even a trace of meat. After taking out the empty shells and throwing them away, I continued to look at them, and I was surprised to find that there were still four lobsters basking on the pebbles. I touched them, and yes!

It's alive, but there's a soft body. It dawned on me that the lobster was not a corpse left after it had been eaten, but a lobster molting!

I couldn't help but shout again: "I discovered the secret of lobster molting!" I've discovered the mystery of lobster molting!

The real house is about to collapse by the sound of our waiting! However, over the next few days, the other three also shed their shells in turn. These 4 lobsters accompanied me throughout the holidays, and after the start of school, I often visited them in my spare time.

The shelling activity accompanies the lobster throughout its life. In the first year of lobster's birth, it will undergo 10 shell changes. Lobsters will continue to undergo shelling activities approximately once a year until they reach maturity.

Mature lobsters may only change their shells once every three years. Lobsters grow by molting, and the new shell hardens after 12-24 hours. Under the condition of water temperature 25 -30, rearing for 6-8 months, the weight can reach 60-150 grams.

The general growth trend of lobster is as follows: from hatching to 20 grams of body weight, the growth rate is an accelerated increase; At the stage of 50-100 grams, the growth rate remains at a relatively stable level, beyond which the growth rate tends to decline. As a result, an inverted U-shaped growth curve is formed.

Molting is divided into two kinds: long molt and reproductive molting, after the juvenile shrimp is separated from the mother, it quickly enters the first molt, replaced with a soft and wrinkled new skin, and quickly absorbs water and grows, this is the growth molt, from the larvae to the adult body molt a total of 11 times. Female shrimp begin to reproduce and molt after sexual maturity, and must perform reproductive molting before each mating and spawning in the future.

When I came home from school today, I went to observe my beloved shrimp again. I found that the small shrimp made the source different from before:

It got bigger, and it was lighter than before, and he looked at me motionlessly, as if he was going to say something to me, and when I looked closer, there was a shrimp shell next to it. It turned out that my little shrimp had shed its shell, and I was so happy.

During this summer vacation, after my repeated requests, my father finally agreed to go lobster fishing with me in the countryside.

After dinner, when the sun had not yet set, Dad drove the car to the countryside in the afterglow of the setting sun. After about 20 minutes, we arrived at our destination. When I got out of the car, I noticed that there were a lot of people fishing for lobsters here.

A group of three or two, some with fishing rods, some with buckets. I looked closer, and I saw that one guy had already caught about half a bucket of lobster.

I quickly asked my dad to get his rod ready, and I picked up the bucket and went to the pond to fish for lobsters. I find an empty space, put my rod in the water, and wait for the lobster to take the bait. There are so many lobsters in this pond that as soon as I put the hook down, there were hungry lobsters to eat.

I saw the lobster take the bait, and quickly lifted the fishing rod, only to see a lobster pulled up by me to the surface, and just as I was proud, the lobster released its big pincers and fell back into the water. I sighed with pity. A few times in a row, the lobster was hooked, but it just couldn't be caught, I saw that the people next to me could catch the lobster every time they were hooked, and I was very disappointed.

When Dad saw it, he taught me, "Look, you're in too much of a hurry, and when the lobster is hooked, you have to slowly lift the water to the surface so that the lobster loses its alert." If it is lifted too quickly, the lobster will feel the danger and let go of the pincers. I thought my father's words were very reasonable, so I went lobster fishing as my father said.

After the lobster was hooked, I slowly lifted the rod, and the lobster did not let go of the pincers, and slowly left the water as my rod slowly left the water. The rod was raised in mid-air, and the lobster was still holding on. I quickly caught the lobster ashore and put it in a bucket.

I was overjoyed to see the lobsters bouncing around in the bucket.

Later, I was able to get my hands on it, and by the time it got dark, I had caught quite a few lobsters. ( Read the article.)