What are the oxygen for midnight zone?

The midnight zone, also known as the abyssal zone, is found at depths of about 1,000 to 4,000 meters (3,280 to 13,123 feet) in the ocean, where sunlight does not penetrate. Oxygen in this zone is primarily supplied by the decomposition of organic matter that sinks from the upper layers of the ocean, as well as by the slow mixing of water layers. Due to the extreme depths and pressure, the amount of dissolved oxygen can be low, but certain organisms have adapted to survive in these conditions. Additionally, cold water holds more dissolved oxygen than warm water, which aids in sustaining some life forms in this deep environment.