The pressure is so large because there is tonnes of water pushing down on the organisms which live within the deep ocean. These creatures also have strong bones so that they are not crushed due to the pressure. Most deep sea creatures are made up of liquids that are not easily compressed meaning that they are able to survive under immense pressure. The pressure of the Abyssal Zone can reach 11,000 psi at times which means that the bodies of the creatures which live there need to adapt so they don't become crushed under the pressure. Some animals also have fat to stay warm against the very cold conditions. Most animals in the deep ocean zones travel very slowly because their metabolism is slowed down by the cold temperatures meaning they can't get as much energy as fast as some other creatures in the warmer ocean zones (3). It is slightly warmer in the Midnight Zone compared to the Abyssal Zone as it is closer to the surface of the water and is therefore closer to sunlight which provides warmth. The Midnight and Abyssal zones have a temperature range of 2 - 4 degrees celsius. They are also helped through the use of bioluminescence as mentioned above. Most deep sea creatures have very large eyes and reflective retinas to help them see. It is extremely difficult to see anything in these deep ocean zones, therefore creatures which live in these zones must have adaptations for their eyes which allow them to see in the dark. This is because plants require sunlight to carry out photosynthesis and therefore live. Bioluminescence can also serve to produce light in order for creatures to see.īecause there is no sunlight in these zones, there are no plants. Another adaptation that these creatures have is bioluminescence.īioluminescence is "the ability to produce light by physiological processes which helps the species lure prey." If deep sea creatures weren't bioluminescent they would be invisible to prey because of their dark camouflage and would therefore not be able to attract them. This increases their chances of survival as it means they are less likely to be found and hunted by predators. The dark colouring acts a camouflage against the darkness of the water to keep the creatures hidden from predators. Most creatures in these zones are dark coloured. In the Midnight and Abyssal zones there is no sunlight meaning that it is very dark. I'm going to be outlining the conditions of the Midnight and Abyssal zones as these are the deep ocean zones in which my chosen organism lives. The shark is a parasite which means that it "eats its prey in units of less than one" and is named after the cookie shaped bites it leaves on its prey.ĭescribe the conditions of the deep ocean zone(s) that require special adaptations for survival of the marine organism. The Cookiecutter Shark lives between the Abyssal and Midnight zones and sometimes climbs to the Twilight Zone. One of the creatures that lives in the deep ocean is the Cookiecutter Shark, formerly known as the Cigar Shark. The different deep ocean zones all have varying extreme conditions that require the organisms which live within them to adapt. These zones are the Bathypelagic zone (Midnight Zone), the Abyssopelagic Zone (The Abyss) and the Hadalpelagic Zone (The Trenches). The deep sea refers to all ocean zones more than 1,000m below the surface. The sea covers around 71% of the Earth's surface and is sectioned into different ocean zones. An example of an extreme environment is the deep sea. These extreme conditions could be things such as very high or very low temperatures, an absence of water or an abundance of water and very high levels of precipitation or very low levels of precipitation. An extreme environment has extreme conditions outside of the "normal range" in which organisms usually survive. An environment is the conditions or surroundings in which an organism lives in.
0 Comments
Leave a Reply. |
Details
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |