Deep-Sea Dialogues

This series examines topics in ocean science with video reports from NOAA Office of Ocean Exploration and Research expeditions and interviews with scientists.


Seamounts

September 29, 2022

Most seamounts are remnants of extinct, underwater volcanoes. They are found in every ocean basin, and come in a variety of shapes and sizes. Seamounts are often hotspots for biodiversity because they provide a hard substrate for deep-sea organisms to attach and grow, and interact with deep-sea currents driving nutrients up from the seafloor. Video courtesy of NOAA Ocean Exploration. Download largest version (mp4, 328 MB).

 


Deep-sea Corals

March 24, 2022

Over half of all known coral species are found in deep, dark waters where temperatures range from 4-12°C (39-54°F). Deep-sea corals can live as individuals or as colonies that form extensive reefs and provide habitat for many other species. This video interview features Randi Rotjan, Ph.D. who shares some of the wonders of these incredible, and fragile ecosystems. Video courtesy of NOAA Ocean Exploration. Download largest version (mp4, 789 MB).

 


Bioluminescence

October 25, 2021

Bioluminescence, the production of light by living organisms, is an incredible natural phenomenon that occurs in several deep-sea organisms (as well as those on land, although less common). This video interview features PhD candidate Rene Martin, who studies the evolution of deep-sea fishes and the "why" and "how" behind bioluminescence. Video courtesy of NOAA Ocean Exploration. Download largest version (mp4, 600 MB).

 


Hydrothermal Vents

February 22, 2021

Hydrothermal vents are dynamic, diverse ecosystems that exist in the absence of sunlight. This video features scientific experts who explain the geological processes that form these other-worldly ecosystems and the biological communities that call them home. Video courtesy of NOAA Ocean Exploration. Download largest version (mp4, 352 MB).

 


Underwater Robots

October 8, 2020

Underwater robots play a big part in deep sea exploration. This video features interviews with experts in underwater robot engineering and operations, providing a window into who builds and operates them, the engineering design process, and what the future of ocean exploration may look like. Video courtesy of NOAA Ocean Exploration. Download largest version (mp4, 335 MB).

 


Predators

May 29, 2020

Deep-ocean predators come in all shapes and sizes, but they all have limited amounts of available food. Learn more about techniques predators use to catch their prey in this video, which also features a discussion with Dr. Scott France, a marine biologist from the University of Louisiana at Lafayette. Video courtesy of NOAA Ocean Exploration. Download largest version (mp4, 559 MB).