Mention of crabs, it is estimated that most people will think of eating hairy crabs, or eating river crabs in their minds, there is a saying called: "Crabs are fresh and fat, sweet and greasy, white like jade and yellow like gold, have reached the extreme of color, fragrance and taste, and nothing can be on it", which shows the deliciousness of crabs.
The only deficiency is that whether it is a hairy crab or a river crab, it is very small, generally only about half a pound, full of hard shells, meat is less difficult to eat, so is there a crab that can be eaten like a pig's trotter?
If you eat crab like a pig's trotter, then the individual crab should be very large, there is a crab known as "killer crab", the leg spread of 4.2 meters and weigh more than 30 kilograms, such a large individual can be like a pig's trotter when eating. So why is it called a "killer crab", can it really kill people, and can its flesh be eaten?
Giant crab
The giant crustacean is the largest surviving crustacean, the only species in the genus Decapoda, Suborder Bremiscosaurs, Spider Crabs, giant crustaceans, and the holder of the guinness book of the world records for the largest crustacean. Also known as The Japanese Spider Crab, the Giant Spider Crab, the Gan's Giant Crab, the Gan's Giant Foot Crab, the Tall Crab or the Killer Crab.
This giant crab subverts people's cognition of crabs, in the eyes of most people, the size of the crab is very small, freshwater crabs are difficult to exceed 1 kilogram, even the sea crab is only more than 10 kilograms, and the giant crab weighs about 16-20 kilograms, the average length is about 3 meters, the double claw opening span can reach 4.2 meters, and the life span is up to 100 years.
On October 21, 2003, at the Guangdong Aquarium, a giant cheet crab successfully molted after a few hours, and this giant cheet crab weighed more than 30 kilograms before molting, and after molting, it means that its weight will have a leap forward, which shows the size of the giant cheet crab.
Studies have shown that crabs undergo 14 molts in their lifetime, and each molt is a challenge to life, and the more they molt, the greater the number of molts. After experiments have recorded the molting shell of a giant crab with a 12.8 cm breastplate, the breastplate increased by 22%.
So the giant crab is so big, is it not flexible? Contrary! The giant crab has a sensitive sensing organ in the body, which can distinguish objects moving on the surface of the sea, and is extremely flexible underwater by its claws, if the claws are fully deployed, it can easily cover a diameter of 3 meters, providing sufficient conditions for hunting or foraging.
Friends who have caught crabs know that its two large claws are very powerful and can easily clip the skin, while the giant claw crab is like steel claws, very powerful, able to easily chop food, but also able to clip human fingers.
Giant crabs are omnivorous, carnivorous crabs that prey on fish, shrimp and other shellfish, and also eat carrion. It inhabits the bottom of the ocean at an average depth of 150-300 m, and the spawning season is spent in shallow waters at depths of around 50 m.
Mainly distributed in the Pacific coast near Japan, the Russian Far East, Australia, the mainland taiwan east, etc., so do killer crabs really kill people?
Why is the giant crab called a killer crab?
The giant crust crab is the largest crustacean in the world, much like a giant spider. Due to a translation error, it was mistakenly called a "giant killer crab".
Do you think if humans were to wrestle with this giant crab in the water, who do you think would win? Personally, I think the odds of a human being winning are slim because it's too big.
There are many cases of giant crabs killing people, but they have not been confirmed, which has become a rumor, but do not underestimate it, although it is more docile (compared to green crabs, it is much more docile), but it does not mean that it is not aggressive. From its predation methods, you can peek into one or two, and there are 4 ways for giant crabs to prey.
1, through vibration, its body has an organ that senses vibration, when there is prey passing on the surface of the water or under the water, it can be sensed by the giant crab, so as to launch an attack.
2, scavenging, there are a variety of animals in the ocean, some animals naturally age, or after being attacked and injured to die, if encountered by giant crabs, they will eat a lot, there is a certain degree of scavenging.
3, the eyes, the eyes of the giant crawfish are two periscope eyes, this eye is applied to the submarine, mainly more stealth, and see farther, and the giant craw crab uses developed vision to easily find prey.
4, flexible body, there is a saying called "two fists are difficult to fight four hands", which means that one person can not fight two people, and the crab claws of the giant crab can not be more than 4 but 5 pairs, which are a pair of claws and 4 pairs of feet. When hunting, it will fiercely wrap around the desperately struggling food, and then use two large and hard claws to attack the prey until the prey is scaly and exhausted, and then the prey is eaten.
Giant crabs hunt by vibrating, scavenging is not picky, periscope eyes see farther, flexible body hunting, in addition to the slow speed, how to see is not good stubble! Its diet contains sharks, hagfish, crabs, various fish for food, and is also a social crab.
According to the Chongqing Morning Post reported on June 23, 2016: "Spectacular! Thousands of spider crabs gather in Melbourne Bay." Aquatic scientist Hill Maris filmed a jaw-dropping scene in Melbourne's Port Phillip Bay. Thousands of spider crabs gather at the bottom of the sea to begin their annual migration.
A huge number of spider crabs are one by one, and some are even stacked on top of each other, unable to see their heads. They migrate forward in a majestic and spectacular way. Hill said it was the largest migration of crabs she had seen in the 20 years since diving.
There is also an interesting phenomenon in the social life of giant crabs, their class consciousness is very strong, the leader will stand at the top, if there are other giant crabs standing taller than the leader, then the leader will step on its feet. They determine the position of the leader through the "beating" method, and the status is determined by hooking the opponent with a chelch.
In fact, for foodies, whether this crab eats people or not, the most concerned is the length of 4 meters, the weight of more than 30 kilograms, this crab has no use value? Can I eat it?
Is giant crab edible high?
The giant crab is mainly eaten by Japanese, because it is mainly distributed on the Pacific coast near Japan, not only edible, but also delicious meat, and special tools are also made to eat giant crab crab.
Giant crabs are made into steamed, sashimi, etc., because of the large amount of meat, the shell of the giant crab is broken and then taken out of the crab meat, made into crab meat roasted wheat, and so on, there are many ways to eat, but it seriously affects the population of giant crabs.
As mentioned above, the distribution of giant crabs can be seen that the distribution range of giant crabs is not large, and the increase in catch also causes its population to decline relatively quickly, and the water layer it inhabits is relatively deep, and it is difficult to catch, so the price remains high.
In previous years, there were some rumors circulating on the Internet that it was a giant killer crab mutated by The Japanese nuclear leak, and listed that it attacked humans without the attention of fishermen, and these rumors were confirmed to be misinformation.
Because the body of the giant crab is really too large, the legs spread 4.2 meters, close to the length of a small car, weighing more than 30 kilograms, larger than the king crab, it is difficult for people to believe that the small crab can grow so big! So it creates a misunderstanding.
It wasn't until around 1990, with the upgrading of fishing methods, that giant crabs gradually entered people's field of vision, and to this day we still know very little about this giant crab.
Finally: the killer crab is just a rumor, but it can not be underestimated its combat effectiveness, as the world's largest crustacean, the legs spread 4.2 meters and weigh more than 30 kilograms, it is indeed terrifying.
If you look at the individual of the giant crab alone, its edible value is very high, coupled with its growth in the deep sea, and the meat is delicious, it is even more expensive.
I don't know in the future with the development of science, whether this crab can be farmed, if it can be farmed, they will slowly enter thousands of households, everyone holds crabs like gnawing on pig's trotters, how good it should be, you say?
Resources:
"Wenzhou News Network": A giant killer crab in the Guangzhou Aquarium successfully molted and witnessed
Encyclopedia: Giant Crab
Chongqing Morning Post: Spectacular! Thousands of spider crabs gather in Melbourne Bay