Currently, the most widely cultured shrimp in Thailand and abroad is the Pacific white shrimp (Litopenaeus vannamei) because it is much easy to be cultured, has the ability to grow fast and produces good yields in just a short period of time. But it takes a good quality of nauplii to produce a good quality of shrimp which will have to start from a good shrimp hatchery. The appointed transfer time of nauplii can greatly impact the quality because it will affect the survival rate and quality of nauplii considering many factors such as water quality, density, and temperature. The longer the distance of the transportation the higher the level of stress that can occur to the Nauplii. So, reducing the possible time and delay that may occur in the transport can keep the survival rate high. But if the reduction of time will not be possible, a sufficient supply of dissolved oxygen can help to control the temperature during transit, in effect, it lowers the metabolism of the nauplii that can affect the its strength after the transport.
So, the study of the appropriate time to transport the nauplii stage of Pacific white shrimp (Litopeneus vanamei) is very significant since it affects greatly the quality and the rate of its survival.