is a phenomenon corresponding to hermaphroditism. For animals, it means that both male and female characteristics are reflected in an animal, and both male and female glands are present. In nature, there are many lower animals that are female. However, Monopterus albus is not a hermaphrodite, from the reproductive characteristics, they only have the characteristics of sex reversal between male and female.
From the time they are born until they reach the age of sexual maturity and begin to reproduce for the first time, they are in a female state, with female traits and characteristics, female glands, ovaries, and eggs. However, when they reproduce once, they will change their sex and become male, with male characteristics. It can be seen that the characteristics of the two sexes do not exist in the body of the eel at the same time, so they are not hermaphrodite.
? The breeding season of Monopterus albus is generally when the temperature is high, and the water temperature is suitable at this time. Monopterus albus may breed between April and August, and the breeding frequency of Monopterus albus is the highest in May and June. At this time, the eels in the male state and the eels in the female state will begin to reproduce. They will find a suitable place to burrow for breeding. After burrowing, they lay separate eggs and sperm, which combine to form a fertilized egg. The fertilized egg is usually yellow. The hatching of fertilized eggs can only be successful when the water temperature is suitable, and the water temperature has a great impact on the time of their hatching.
