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The Adaptation of Deep Sea Life

The environmental affects that caused deep sea creatures to evolve into almost entire different species.

Tara Layton

on 7 December 2010

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Transcript of The Adaptation of Deep Sea Life

The Adaptation of Deep Sea Life Evolutionary Factors Hey Check Out This Video!!! WHO TURNED OUT THE LIGHTS!!!! Pressure, Pressin' Down On Me BRR...It's Cold In Here! In example A it shows the effect of when Luciferin comes in contact with oxygen by the help of a luciferase. An organism can ultimately create Luciferin or by possessing it through eating a specific diet.
In example B it represents what happens when a photoprotein, which is made when an element such as oxygen forms together with itself to create a single unit, is triggered to produce a light when it comes in contact with an ion which typically will be calcium.
In example C they are showing that when a fish absorbs light it will trigger a fluorescent protein in their body. This protein will then begin to re-emit the light throughout their body which will then create the process of bioluminescence. Survive Breed A fish can use its bioluminescence as a burglar alarm to warn the others They also use this ability as a way to attract their predators' predators so that their predators have to be wary of their own surroundings and take caution Some fish possess photophores which are organs that contain bioluminescence tissues The specific colors that are used on a species can also reflect whether the fish is poisonous to it's predator Some fish may even be edible to their predators, but have developed batesian mimicry where they change their colors so their predators only believe they are poisonous How else are you going to find a mate if you can't see them? Some fish contain specific "searchlights" to make them stick out to the opposite sex An example would be the lure that is filled with bioluminescent bacteria on the female deep-sea anglerfish Bioluminescent bacteria will use their luminosity to attract fish Commonly found on detritus or on a fecal pellet, once the bacteria is eaten by the fish the bacteria will move into their system and stay in the environment where their needs are met Most of the underwater organisms don't have air spaces. They are simply just made up of solid materials or are entirely made of liquid. What about species that do have air spaces? They have a way of getting the air from the surface and when they begin to dive deeper and feel more pressure, the air pushes itself into a sinus that will then mix with a fatty oil to create an emulsion. Other fish possess a swim bladder. The swim bladder will pump gases in and out of it so that, when need be, the fish can make itself heavier in order to easily sink or lighter to be able to float. Confused? Just check out the picture... Cold temperatures can affect the behavior of an organism's cell membranes Water in the deep sea can get as low as 5 degrees Celcius Aww...so pretty! The cell membranes will become more rigid and can easily break. In order to adapt to this climate, the fish must alter the lipids in their membranes When the temperature becomes colder the fish will replace most of its lipids with lower-melting lipids This will allow the membranes to remain in a constant fluid state despite the cold Wasn't that amazing?! The End! RAWR!!!
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