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Transcript of Bathypelagic Zone
Plants & Animals
Light, Temperature, & Pressure
Light & Pressure: The bathypelagic zone is sometimes known as the “Midnight Zone” or the “Dark Zone” this is because the only light in this area is produced by the animals themselves. Most of the animals down in the Bathypelagic zone are black or red due to the lack of light. The animals that live down in this zone have to tolerate water pressure reaching 5,850 pounds per square inch. Despite of the great amount of pressure, many creatures live down in this area of water.
Temperature & Distance: "The upper limit of the Bathypelagic zone starts at 100-700 meters (330-2,300 ft) below the ocean's surface and coincides with a sea temperature of 10* celsius. Now the further the Bathypelagic zone goes down, which is at 2000-4000 m (66,000 to 13,200 ft). Then the temperature will drop down to 4* celsius." (Source: http://www.eoearth.org/view/article/150442/)
Geography & Distance
Distance: 1000 meters to 4000 meters
Geography: Lying between the mesopelagic zone and abyssopelagic zone (Hello neighbors!), the bathypelagic zone is generally larger by volume and is densely less populated. Since sunlight doesn't reach the zone, will we ever pass this darkness and ever get production?
The zone has bioluminescent organisms, known as some of the strangest creatures in the ocean reside there since the “Midnight Zone” is so dark. They live on detritus, or dead material, that “falls from the other surface zones on other animals that live in the deep sea.” Most of the animals are either transparent, black, or red due to the lack or light. The animals are basically invisible in the midnight zone. *Able to withstand water pressure reaching 5,580 pounds per square inch.
* Since only five percent of the food supply up in the epipelagic zone reach into the bathypelagic zone, many deep sea fish will anything that comes their way.
* Animals are often hermaphroditic (with male & female parts) due to its lack of light, making it harder for them to find mates.
* Since there is no plants, the bathypelagic zone goes through chemosynthesis - a biological conversion of one or more molecules, or simply...the transfer of chemicals into nutrients via tubeworms at hydrothermal vents.
Some more photos of our animals~
Brandon R., Halle P., Antonio G., and Victoria W.