Research below the thermocline
Sublevel 7 is a deep-sea research station anchored to the abyssal plain of the North Pacific. We study bioluminescent organisms, hydrothermal vent ecosystems, and the biochemical frontiers of extreme-pressure biology. Our crew of 12 lives and works in a pressurized habitat 2.4 kilometers below the surface.
Praya dubia var. abyssalis
Colonial organism spanning up to 40m. Emits continuous blue-green bioluminescence from nematophores along its stem. Specimen collected at 2,800m near the eastern rift.
Depth: 2,800m | Pressure: 281 atmKiwa tyleri
Hairy-chested squat crab found exclusively near hydrothermal vents. Farms filamentous bacteria on its setae for nutrition. Exhibits remarkable heat tolerance up to 80°C.
Depth: 2,200m | Pressure: 221 atmVampyroteuthis infernalis
The "vampire squid from hell" — despite its name, feeds on marine snow. Two large fins propel it through oxygen-minimum zones. Eyes are the largest in the animal kingdom relative to body size.
Depth: 3,100m | Pressure: 311 atmMacropinna microstoma
Transparent cranial dome houses tubular eyes capable of rotating 90° to spot prey silhouetted above. First photographed alive in 2004 at this station.
Depth: 1,800m | Pressure: 181 atmAt this depth, every square centimeter of the hull bears the weight of 241 kilograms. We monitor structural integrity continuously. The gauge below reflects real-time readings from our primary pressure sensors.
Marine biologist. 14 years at depth. First person to observe live Vampyroteuthis feeding behaviour.
Habitat systems specialist. Maintains life support, ballast, and hull integrity across three pressure zones.
Biochemist focused on piezophilic enzymes. Her work has led to three pharmaceutical patents.
Deep submergence vehicle pilot. Over 200 dives to the abyssal plain. Holds the station dive record.
All surface communications are relayed through our satellite buoy array. Expect a response within 48 hours.
Open Channel