Most mesopelagic fish make daily vertical migrations, moving at night into the epipelagic zone, often following similar migrations of zooplankton, and returning to the depths for safety during the day.
Kebanyakan ikan mesopelagik melakukan migrasi vertikal setiap hari, bergerak saat malam hari ke zona epipelagik, sering mengikuti migrasi yang mirip pada zooplankton, dan pada siang hari kembali ke kedalaman agar aman.