#Antarctic_krill
Every night, some crustaceans migrate upwards, up to 1000m from the twilight zone, to feed. They poop on the way down, transferring nutrients to deeper waters.

Other species or larval stages maintain depth in the water column by riding gelatinous zooplankton!

#Crustmas 🧪🦑
December 20, 2023 at 5:11 PM