My Deep-sea Fishery

Xiang Yang secretly thought in his heart that this hulking female shop owner is still delicate, and she didn't forget to remind customers that Pippi Shrimp is actually in danger.

However, Xiang Yang is also an expert in this field, and he paid the money with a smile, indicating that he knew it.

Seeing that Xiang Yang didn't take what she said to heart, the female boss couldn't help being a little angry.

"Mantis shrimps are cave-dwelling shrimps. They often dig holes in the sandy bottom or muddy bottom of shallow seas. They can even dig out rocks on the bottom of the sea." The female boss whispered.

Xiang Yang was taken aback for a moment, then smiled, and said, "Don't worry, I know what you mean, but I don't know much less about Pippi Shrimp than you do."

Pippi shrimp is an extremely ferocious carnivorous animal among stomatopods.

Although the pippi shrimp only preys on small invertebrates most of the time, such animals can make sounds by rubbing the ventral surface of the telson with their tail limbs or striking with their grazing limbs.

But there is no doubt that Pippi Shrimp has a ferocious temperament.

Pippi shrimp has very sharp eyesight and is very good at swimming.

Therefore, most of the prey of Pippi shrimp are bottom-dwelling creatures that are not good at swimming, including various shellfish, crabs, sea urchins, etc.

Adult Pipi shrimp can easily destroy the outer hard shell of the prey and eat the meat inside.

In addition, some Pipi shrimp are very good at ambushes, and a strong attack can kill the enemy.

Lobsters with calcified armor and crabs passing quietly on their tiptoes are also often targeted by Pippi Shrimp.

Xiang Yang once saw a kind of Pippi shrimp with two hammer joints, which can destroy the nervous system of the crab and kill the crab on the spot.

Some pippi shrimps also use their barbed arms under their heads to stab food quickly, which is quite like a praying mantis.

There is also a kind of Pippi shrimp with palm joints that is even more powerful.

Pippi shrimp with palms are lighter in weight, and their protective devices have evolved to withstand continuous blows, like ancient Roman gladiators. When fighting, they hide behind a shield made of curly tails to avoid enemy attacks .

Extremely aggressive and often fearless, the Pippi Shrimp can grab hold of cephalopods ten times its size and weight.

Even if octopuses and other cephalopods find a crack to hide, they dare to approach the nest of Pippi shrimp after thinking twice.

It is said that after the main enemy of the Pippi shrimp is caught in the open area, they always have to fight. The Pippi shrimp struggling in the hunter's mouth is difficult to swallow, and many of them are spit out intact.

This clever sea creature has a pair of powerful pincers that can shatter glass and even snap off a human finger when it strikes.

Biologists say that the pippi shrimp ranks second in the speed of animal attack, second only to the mandibles of soldier ants.

Some species of Pippi shrimp even have a pair of hammers hidden under the body that can strike at a speed of 60 kilometers.

When the Pippi Shrimp attacks its prey, it can eject the hammer within one ten-thousandth of a second. The impact force of the ejection can reach up to ten meters. The high temperature generated by the friction in an instant can even cause electric sparks to appear in the surrounding water.

Pippi shrimp can feed on fish, shrimp and shellfish, but fresh and small shellfish are better.

To avoid polluting the water quality in breeding Pippi shrimp, it is better to use small pieces of bait in the wild, and it should be evenly distributed to facilitate ingestion, so as to increase the edible half of the bait and reduce mutual killing due to robbing.

According to the nocturnal feature of the mantis shrimp, feed once a day in the evening, the amount of feeding is 5% to 20% of the weight of the parent mantis shrimp, and it depends on the brooding conditions of the parent mantis shrimp, the water temperature, and the weather conditions. , bait types and quality conditions, etc. are appropriately increased or decreased.

In the early stage of cultivation, the amount of feeding can be appropriately increased to meet the sufficient nutritional requirements for the development of the sex shrimp glands, and they basically do not eat. Therefore, it is estimated that most of the shrimps should reduce the amount of feeding when they are laying eggs.

In addition, after the pippi shrimp hatches, it turns into growth, and its food intake increases greatly, which also interferes with other egg-bearing mantis shrimps. Therefore, it is best to use ground cages and nets to trap them out of the pond.

During the cultivation period, it is necessary to patrol the pond to check the water intake and drainage, mantis shrimp activities and feeding conditions, water quality, especially the discharge of larvae. Once it is found that the parent mantis shrimp discharges the false flea-like larvae, the larvae are collected into the nursery pond for seedling cultivation.

Of course, the two most difficult steps in breeding Pippi shrimp are hatching and training.

The spawning and reproduction of Pippi shrimp have strict requirements on environmental conditions, especially the substrate, caves and light. Without suitable conditions, they will not lay eggs, or even if they lay eggs, they will not hatch. Therefore, it is necessary to put soft mud collected from the intertidal zone at the bottom of the glass fiber cylinder, spread it flat, add sea water to a distance of 30 cm from the mud surface, soak it in sodium hypochlorite for 24 hours to disinfect, then neutralize, wash, and make the inside of the tank The pH value of the seawater is consistent with that of the filtered seawater, and then covered with a black cloth for later use.

However, Xiang Yang is good at cooking pippi shrimp. Xiang Yang has seen people select about 16 brood shrimps with mature gonads, large, lively, and complete appendages.

After being sterilized with formaldehyde, put them into the hatching tank.

Pippi shrimp has a strong ability to dig holes, and as long as the substrate and environmental conditions are suitable, sexually mature mantis shrimp can complete it in a short time. Between 1.5 and 3 centimeters. Mature egg cells are round, with a diameter of about 410-450 microns. They are discharged at one time, and are held on the mouth with jaws and feet and rotate continuously. As long as the egg mass is not broken or is not stimulated by the outside world, it will always hold it.

From a few hours to a few days, if there are external stimuli such as strong light, rapid water, large water temperature difference, etc., the egg mass will be quickly thrown away. The cleavage form of fertilized eggs of mantis mantis shrimp is surface cleavage. Under the water temperature of 26-28°C, it is hatched in running water for about 20 days, and cultivated into the larvae of the mantis mantis shrimp, that is, the larvae of Pippi shrimp. "

During this period, the water flow should be controlled to prevent mixing in the tank. The amount of effluent and influent water should be equal, and a 100-mesh sieve should be used to change the water. The dissolved oxygen content in the cylinder should be greater than 5 mg/L.

Oviposition, hatching, and larvae are all completed together in the cave and the mother body. When the larvae leave the cave and the mother body and float in the water, they become metamorphosed mantis shrimp larvae.

It takes 3 to 4 months for mantis shrimp larvae to metamorphose into juvenile mantis shrimps. At this time, the larvae should be separated from the original tank.

In addition, the difficulty of transporting Pippi shrimp is also a very difficult thing.

After the small pippi shrimp is purchased, it should be transported to the nursery plant as soon as possible, and put into the mantis shrimp pond for temporary cultivation.

Small pippi shrimp can be transported by means of running water boat transport, nylon bag oxygenation transport, dry moisturizing transport, canvas bucket and other water transport methods.

Even so, in order to ensure the quality of Pippi shrimp and increase the amount of eggs, merchants should pay attention when purchasing Pippi shrimp. The time for Pippi shrimp to leave the water should be short, the degree of gonad development is good, the body is strong, the appendages are complete, and there is no scar. , strong vitality, bright body color.