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Zones of the Ocean

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by

Susan Koch

on 26 August 2013

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Transcript of Zones of the Ocean

The Ocean Zones
Sea Lions
Sea Turtles
Euphotic Zone
Also known as the Sunlit Zone
Euphotic is Greek for "Well Lit"
Moray Eel
Manta Rays
Angelshark
Euphotic Zone:
from the surface to 600 feet deep
has 90 percent of sea life
gets the MOST sunlight.
temperature range: from 104 to 27 degrees
with sunlight comes photosynthesis & food production
minimal pressure
Changes color - why?
Changes body temperature - why?
Adaptions?
Adaptions?
Nemo or Clownfish
Why does the
manta ray have
a white underbody?
Adaptions?
Twilight Zone
only dim light penetrates
no plants growth
from 600 to 3,300 ft deep
bioluminescent adaptions appear
temperatures range from a chilly 41 to 39 degrees F
increased pressure - special equipment needed for exploration
Twilight Zone
Also known as Disphotic Zone
Disphotic is Greek for "Poorly Lit"
Comb Jelly
stings prey
turns red to hide in the dark waters
lights up food as it passes by
Why?
Hachet Fish
big eyes
flat bodies
silver color
Why?
Adaptations?
Octopus
Jellyfish
Adaptations?
Squid
Adaptations?
Bathyal Zone
Also known as Midnight Zone
Bathyal is Greek for "Deep"
Bathyal Zone
90 percent of the ocean water is this zone
from 3,300 to 13,100 feet deep
no light - only light produced is by critters themselves
chilly waters - temperatures range 43-32 degrees F
IMMENSE!!! pressure
most critters are black or red - why?
all critters are predators - why?
many have no eyes - why?
Anglerfish
Adaptations?
Viperfish
Adaptations?
Tripod Fish
Adaptations?
Snipe Eel
Adaptations?
The Abyss Zone
Also known as Abyssal
Greek of "Bottomless"
Abyssal Zone
from 13,000 to 20,000 feet deep
3/4 of ocean floor is in this zone
most critters are invertebrates - what is that?
near FREEZING waters
CRUSHING pressure
few critters live in the abyss
Hagfish
Adaptation: produces slime - why?
Sea Cucumber
See any changes?
Sea Spiders
Adaptations?
Blind Shrimp
Adaptations?
Hadal Zone
Also known as the Ocean Trenches
Named after Greek god - Hades, God of the Underworld
Hadal Zone
From 20,000 to 36,000 + feet deep
Hadal zones are canyons & trenches on ocean floor
Deepest trench known is off of Japan
Temperatures hover around freezing
Critters have adapted to the EXTREME pressure & is believed would die if pressure was reduced
Even fewer critters live in the Hadal zone
Critter have little color - why?
Starfish
Sea Cucumber
Sea Cucumber
Tube Worms
Sea Cucumber
See any changes?
Lives on ocean floor
Adaption: can throw up its own stomach - why?
If you discovered a brand new life form in your class's ocean zone, what would that critter look like?
Full transcript