The yellow eel reproduces through fertilization. The reproductive season of the yellow eel is about June-August, and in its individual development, it has the characteristic of male and female sex reversal, i.e., it is female from the embryonic stage to the first time of sexual maturity; the ovary gradually changes into the spermatic ovary after the eggs are spawned; the length of the body in the 36-48 centimeters, part of the sex reversal, and the male and female individuals are almost equal;
The one that grows to 53 centimeters or more is mostly the spermatic ovary. Eel spawning in its burrow near the mouth of the cave, spawning before the mouth spit foam piled up into a nest, fertilized eggs in the foam with the help of the buoyancy of the foam, on the surface of the water to develop, both male and female fish have the habit of protecting the nest.
The eggs are large, with a diameter of about 2-4 millimeters, golden-yellow in color and rich in elasticity. When spawning the adult fish spit foam, in the hole to accumulate into a ball, the amount of eggs is small, not spawned in the foam, spawned in the nest, about 7-8 days can be hatched out of the young fish.
Expanded Information:
Life Habits
Eels prefer to burrow in the much humus during the daytime or in the silt. The daytime eel prefers to burrow in the humus in the mud or in the bank of the water in the stone gap burrowing. Rarely active during the day, night out of the hole for food. Nocturnal, oral skin folds viable respiration, so can breathe air directly.
Gills are not developed, but with the oral cavity and the laryngeal cavity of the inner wall of the epidermis as a respiratory auxiliary organs, can breathe air directly; in the water is very poor in oxygen, can also survive. Out of the water, as long as the skin is kept moist, within a few days will not die.
The eel is a carnivorous and ferocious fish, mostly feeding at night, and can prey on a variety of small animals, such as insects and their larvae, and can also devour frogs, tadpoles and small fish. The eel's ingestion is mostly in the form of slurping, whenever it senses that there is a small animal in its mouth.