The Great Vertical Migration

Diel vertical migration truly is a phenomenon. This migration serves as the anchor for the food web that supplies the entire planet. Every day, 5 billion metric tonnes of organisms migrate to the surface to feed. Predators chase prey, forming a layer of animals so dense that it shows up on sonar equipment as a false bottom. The Deep Scattering Layer.

Part 2 | Seasonal Marine Migrations: https://youtu.be/EqGwIt4-orM

DEEP SEA HUB: https://naturalworldfacts.com/deep-sea-hub

00:00 - Introduction: Migrations in the Deep Sea
01:00 - Adaptations to the Pelagic Zone
01:26 - Why Marine Animals Migrate
01:42 - How Marine Animals Know when to Migrate
02:25 - Diel Vertical Migration
03:00 - The Role of Zooplankton
03:30 - The Deep Sea Arms Race
04:09 - Sanctuary in the Deep
04:30 - Why Vertical Migrations are Necessary
04:46 - The Role of Phytoplankton
05:17 - The Deep Sea Food Web
05:57 - The Importance of Krill
06:30 - Siphonophores
06:43 - The Great Larvacean Mucus Trap
07:13 - Active Predators of Vertical Migrators
07:42 - The Role of Lanternfish
08:10 - Conclusion: The Importance of the Vertical Migration
08:44 - Preview: Seasonal Marine Migrations
09:04 - The Deep Sea Hub

Footage used belongs to Schmidt Ocean Institute, MBARI, OceanX and the Ocean Exploration Institute.

#deepsea #wildlife #nature #documentary #ocean #marinebiology #science #biology

Music by Jorge Mendez:
- Shelter
- Solitude
- Silver Linings
- Moments

Resources:
https://www.researchgate.net/publication/230996198_Diving_behavior_of_sperm_whales_in_relation_to_behavior_of_a_major_prey_species_the_jumbo_squid_in_the_Gulf_of_California_Mexico
https://www.mbari.org/vertical-migration-predators/