Indeed, the metapenaeus ensis we bought now is kept in fresh water, so we will mistakenly think that metapenaeus ensis is a freshwater shrimp, that is, a river shrimp. Actually, it's not. It's just a diluted shrimp fry. It can be raised in fresh water, but it still belongs to sea shrimp. Many seawater varieties have desalted seedlings, and now freshwater culture of seawater varieties has become very common.

Related instructions

Body color khaki to brown, swimming feet brown or red. There are many short hairs on the body surface except the ridge, the edge and the front and bottom of both sides of the abdomen, and many black spots are distributed on the body surface. The male frontal angle is straight, sharp-knife-shaped, and the female end is slightly bent upward.

The first step is to have a seat joint thorn. There are 6~9 teeth in the frontal angle, longitudinal ridges on the back of the first to sixth abdominal segments, and no lateral spines in the tail segment. The first step has seat spines, but they are smaller than the basal spines. The male copulator has a sharp tip, a wide base, a slightly triangular ventral surface, and the anterior and middle processes of the female copulator are nearly long.