Macrobrachium rosenbergii is Macrobrachium rosenbergii and Macrobrachium rosenbergii is a Cantonese dialect. Because the head is much bigger than the body, it is called bighead carp, which belongs to megabrachium and Macrobrachium. From young shrimp to adult shrimp, they live in fresh water. Mature females mate and hold eggs in fresh water, hatch in salt water, and larvae develop in salt water.

Macrobrachium rosenbergii:

The habitat habits of Macrobrachium rosenbergii in different growth and development stages are different, even the opposite. In the larval development stage, Macrobrachium rosenbergii must live in salty and fresh water with a certain salinity, and can float, always with its abdomen facing the sky, its back touching the ground, its tail tilted upward and its head tilted downward. If this period is put into pure fresh water, it will soon die. Larvae like to live in groups and have strong phototaxis, but avoid direct light. When the larvae are transformed into young shrimps, they all live in fresh water and live a benthic life until they reach adulthood and their brooding parents.