There are many kinds of crabs, so their reproductive capacity is different.Because it is an oviparous animal, it will not directly produce small crabs, but produce crab eggs, which can produce tens of thousands or even millions of eggs at a time, and the hatching rate is very high, reaching about 90%.The newly hatched larvae look like water fleas and need to undergo five molts before they become young crabs.
1, male and female mating: Crabs want to reproduce, first need to mate.Usually the female and male crabs mature in the fall, when they will attract each other through pheromones, and then embrace each other, the female is ready to molt, the male will inject sperm into each other's body to store, until the right time to become fertilized eggs.
2. Overwintering and spawning: Crabs mature in autumn and mate in autumn, but they do not lay eggs immediately after mating. They need to spend the cold winter and wait until the next spring to lay eggs.The time of laying eggs is generally in the early and middle ten days of March, the amount of laying eggs is very large, and can lay 2-3 times.
3. Development of young crabs: Crab eggs are usually hatched in the water. The larvae have to undergo five molts before they can grow into young crabs. It usually takes 35 days.After growing into a young crab, it needs to slough its skin once before it can become a young crab.Young crabs need 1-2 days after molting carapace will be hard up, the body will become larger.
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