All members of krill order are true krill suborder, a crustacean similar to shrimp. Their breastplate unit, or pectoral muscle, is connected to the carapace. These pectoral fins are so short that the gills of Antarctic krill are visible to the naked eye on each side of crustaceans. Legs do not form mandibular structure, which is the difference between this project and crabs, lobsters and shrimps. (See Super Krill in Wikipedia classification. )

2. Life cycle

The main spawning season of Antarctic krill is from 1 month to March, which is above the continental shelf and the upper part of the deep-sea ocean area. In the typical way of all krill, the male is attached to the semen around the female reproductive origin. To this end, the first male polypod (leg with abdomen) was built as a coupling tool. Women lay 6000- 10000 eggs at a time. When they are attached to semen [RQ86] released from the male sperm sac at the beginning of reproduction, they are fertilized.

According to the classic hypothesis of Marr [Marr62], the investigation results found on the famous British research ship "RRS" were obtained, and then the development process of eggs was as follows: during the descent of 0.6 mm eggs on the shelf, gastrulation (the development of eggs into embryos) was set at the bottom, and the depth was about 2000-3000m in the marine area. Eggs from time

Hatch cover, 1 nauplii (larval stage) begins to migrate to the water surface with its three pairs of legs; The so-called developed.

The next two larval stages, named No.2 nauplii and post-nauplii, still do not eat, but are fed by the remaining yolk. Three weeks later, the krill completed its ascent. The growth is large, followed by other larval stages (second and third cap bodies, 1 to sixth cilia). They described the development of bristles (bristles) to add extra legs, compound eyes and bristles. At 15 mm, juvenile krill is similar to adult. Krill will mature in two to three years. Like all crustaceans, krill must be transformed to grow. About every 13 to 20 days, krill shed its shell, leaving it behind.

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