What fish are not male and female Why are some fish not male and female?

Some fish species are male and female, such as sea bass, cleaner fish, red silk fish, moray eel, dragon eel, and striped snake eel.

Among them, sea bass is a very delicious fish, which also undergoes a complete denaturation process, changing from a mature female to a mature male. The reason why clean fish have such an interesting name is that they work tirelessly to clean the mouths and fins of other fish. In this fish, machismo has reached its peak, a male has "three rooms and four concubines", and these females are not allowed to leave the male's active waters, and they will not unite against this unreasonable "husband".

In general, fish go through various changes during reproduction and growth, and some fish are unisexual.

Most of the fish are dioecious. Herring, cod, yellow snapper, plaice and other fish have hermaphrodites. In the genus Perciformes, there are several species of fish that are permanently hermaphrodites. Small grouper 、......

Yellow eel, the yellow eel belongs to the class Ichthyidae, the order Gillidae, the family Gillidae, and the subfamily Eel; Ordinary freshwater edible fish, scaleless, can straighten the front half of the body in shallow water, breathe through the mouth to the surface of the water, and store air in the mouth and throat, so the larynx appears swollen. It is widely distributed in southeastern Asia, except for the northwest plateau, it is produced everywhere, inhabits ponds, small rivers, rice fields, etc., often lurks in mud holes or stone crevices, and forages at night. Many people who have been in contact with the yellow eel think that the yellow eel is a hermaphroditic creature, in fact, it is not, the yellow eel is not a hermaphroditic creature, its reproductive situation is more special, it is a female when it is young, and after reproduction once, it transforms into a male, and this phenomenon of female and male transformation is called sexual reversal.

Fish have a gender. Although fish are the lowest vertebrates, they already have a fairly complete organ system such as bones, muscles, digestion, circulation, respiration, excretion, reproduction, and neurosensory.

Because they are hermaphroditic.

For example, groupers are hermaphroditic and have the characteristics of sex transition. All females are sexually mature for the first time, and then transition to males the following year.

How to distinguish between male and female map fish.

Females can lay eggs, males cannot.

The biggest difference is that the male has a male character in it, and the female fish has a female character in it.

The male is male and the female is female.