Shallow tray hatching is to find a rectangular tray vessel with a relatively large opening, pour in the water for hatching the shrimp, and sprinkle the eggs of the shrimp evenly on the water surface. After 24-36 hours, the larvae of the shrimp will hatch. When collecting, we can make use of the characteristics of the harvest shrimp. The harvest shrimp will swim to a place with light. We will shine a flashlight on a corner of the vessel, and the harvest shrimp will swim to the place where the flashlight shines. We will suck the harvest shrimp out with a dropper and complete the collection.
The deep-water oxygenation incubation method generally uses a 2L plastic beverage bottle, and the bottle cap is replaced with an oxygen-forming pipe joint. Then cut off the bottom of the bottle, connect the lid to the oxygen tube, put the bottle upside down, and pour nearly 2 liters of hatching water into the bottle. This water for hatching is not ordinary tap water, but we use tap water and crude salt or sea salt, and the ratio is 1 liter of water/kloc-0-15g of salt. Remember to use tap water now.
Ecological habits of bumper shrimp
The distribution of harvest shrimp is global. Under natural conditions, harvest shrimp is rarely found in water with salinity lower than 45 ‰. Shrimp can live in water with a salinity of 300 thousandths. Because there are few predators and competitors at high salinity, its population can maintain a high density.
Resting eggs with a diameter of about 200-280 microns will be produced when the salinity is over 100%, which is called durable eggs. Durable eggs are grayish brown and have a hard shell. When floating on the water surface or suspended in the water, it can survive the harsh environment such as hypoxia, cold and dryness in the underwater sludge. In dry and oxygen-free state, it can be preserved for several years, and it will not hatch until it is immersed in seawater and the metabolism of embryos in the shell is stimulated.