The interesting life history of Antarctic krill

Antarctic krill is a kind of crustacean zooplankton living in the Southern Ocean. It is small in size, with a body length of generally 3 to 5 cm. But the reserves are astonishing, about 400 to 600 million tons, and there is also a saying that there are 5 billion tons. It plays an important role in the Southern Ocean food chain. It is food for seals, whales and penguins, and is also an important marine biological resource.

Krill development process< /span>

The life history of krill is quite interesting. After the krill eggs are discharged into the water, they continue to sink before they hatch. They hatch as they sink, and they sink to hundreds of meters. It took even more than 2,000 meters for the larvae to hatch. The larvae continue to float during the development process, and develop as they float. When the larvae develops into the shrimp stage, it has almost reached the surface of the sea water. At this time, it can feed, grow, and swarm on the surface. When it matures, it reproduces to the next generation.

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