青虾,学名日本沼虾,俗称河虾,属于长臂虾科,沼虾属中的一个种。它体形粗短,体色青蓝,半透明,冬春体色深,夏秋体色浅。青虾的整体由20个体节组成,头部5节,胸部8节,腹部7节(包括1尾节),头胸部的体节愈合成头胸甲。青虾是我国淡水产天然虾类中的一个重要类群,其生长速度快,养殖周? Freshwater shrimp, Macrobrachium nipponica, commonly known as shrimp, is a long-arm shrimp, Macrobrachium in a species. It is short and stature, body color blue, translucent, winter and spring body color depth, light summer and autumn body color. The whole body of the shrimp consists of 20 body segments, 5 heads in the head, 8 in the chest, 7 in the abdomen (including 1 tail node), and the head and thorax section heal to the carapace. Freshwater shrimp is a kind of freshwater natural shrimp in China an important group, its fast growth, breeding week?