how do fish in the abyssal depths survive the pressure

The chemoautotrophs oxidizes hydrogen sulphide, hydrogen and methane, readily available from the hydrothermal fluids and creates an energy surplus In the form of sugar which the bacteria then utilizes to produce organic matter. The process is termed as chemosynthesis and the microbes capable of this process are called chemoautotrophs. How do the deep sea creatures survive without light?Īs there is no sunlight, the microbes depend on chemicals that come out of the vents. Most hadal habitat is found in the Pacific Ocean.

Found at the depth of around 6,000-11,000 metres, making it a deepest region of the ocean. Hadal zone is lying within oceanic trenches. Has higher concentration of nutrient salts, like nitrogen, phosphorus, and silica, due to the large amount of dead organic material that drifts down from the above ocean zones and decomposes.Ībyssal zone is above Hadal zone. Midnight zone or the deep sea consists of two zones abyssal or hadal zone.Ībyssal zone is 4,000-6,000 metres in depth with perpetual darkness with very little oxygen. No plants grow in this layer, one can find some strangest sea animals such as octopus, crab, krill, swordfish, wolf eel, and catshark. Due to lack of sunlight, bioluminescence can be observed in creatures. Twilight zone – only faint light reaches this zone. The ocean is divided into three vertical zones of the water column based on the amount of light and pressure it experiences and these are: Sunlight zone, Twilight zone, Midnight zone. Pressure of upto 1,000 atmosphere can be experienced in this zone. About three-fourths of the area covered by ocean is deep, cold, and permanently dark. The water is between 3-10 degree Celsius and has low or no oxygen. What is deep sea? How deep is the deep sea?ĭeep sea is the lower most layer of the ocean existing below thermocline and above the seabed. The zone is 80m(260 feet) in depth and is home to majority of aquatic life. Photic zone also known as sunlight zone or limnetic zone is the uppermost layer of the ocean receiving sunlight and allowing photosynthesis to happen, forming the basis of food chain in the upper water column. Deep sea monsters or the Deep sea creatures are the animals that live below the photic zone of the ocean.

How do fish in the abyssal depths survive the pressure