The Mesopelagic Zone

    What is the Mesopelagic zone ? The mesopelagic is the deep part of the ocean that is below 200 meters. The mesopelagic is very cold and dark , the oxygen is very low down there. There is not a lot of life in the deep ocean , there are fewer animals down there and its salty.
 
    Scientist use different tools to study the mesopelagic, for example one tool is a C.T.D this measure the salt  in this area.they use the nets top collect the animals at the bottom of the deep layer. Scientist Study the animals by using sonar. There use a tool called Acoustics , there is part of this tool called the ping and it is used to put down deep in the sea so that a sound can reflect back up to tell what is down at the bottom . Visual methods or tools they use are submarines or a robot that can go under water. The robot has a suction attached to it so that they can suck up the animals in a bucket and bring them up.

    Some fish that live in the deep sea are Angelfish, Dragon fish, Latern fish, Light Fish , Hatchet fish, Bristle fish, Deep Sea Smelts. Some adaptations of these fish are their eyes , they have eyes on the top of their head to find their prey. Another one is their lighting , it camoflagues the light from above and the preditors from below wouldn't be able to eat them .
    One observation I seen in class looked like a shrimp , this was the size of my thumb. There were different colors of these fish one was tan/brown and another was red . These fish kinda lookled like little crawfish , these fish were interesting to look at .