The Marine Biome - PowerPoint PPT Presentation

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The Marine Biome

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The Marine Biome It s Deep... The Marine Biome The largest of all the Biomes More than () 70% of the Earth s surface is covered in water. Only 3% is fresh. – PowerPoint PPT presentation

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Title: The Marine Biome


1
The Marine Biome
  • Its Deep...

2
The Marine Biome
  • The largest of all the Biomes
  • More than (gt) 70 of the Earths surface is
    covered in water. Only 3 is fresh.
  • Ice 2 Lakes, Rivers and Atmosphere 1
  • Average depth is 3800 meters
  • About 2.4 miles
  • Deepest is 11,045 meters
  • Mariana Trench

3
The Marine Biome
  • The Marine Biome is broken into two major groups
    of zones.
  • The Benthic Zones
  • Underwater Land
  • The Pelagic Zones
  • The Water columns

4
The Benthic Zones
  • Underwater Land
  • Continental Shelf zone.
  • Also the edge, slope and rise zones
  • Bathyal zone
  • Between 200 and 2,000 m (660 - 6,600 feet) below
    the surface.
  • Abyssal zone
  • Dark ocean region 2,0006,000 m(6,500 - 19,500
    feet) deep

5
The Benthic Zones
  • Hadal zone
  • The deepest region of the oceans (greater than gt
    6,000 m)
  • The French meaning is "house of the dead".
  • The Trenches
  • Mariana Trench
  • The deepest known is at 10,911 m.(6.8 miles)

6
http//www.jochemnet.de/fiu/OCB3043_1b.html
7
The Pelagic Zones
  • The Water columns
  • The Neritic zones
  • Above the Continental Shelf to the Shore
  • The Oceanic zones
  • Everywhere else

8
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9
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10
Prepare yourself...
  • You need to write a staggering 23 words for the
    next three slides!

11
The Pelagic Zones
  • The oceanic pelagic region is divided into three
    sunlight zones.
  • The top zone is the euphotic or sunlit zone. This
    is the ocean zone that sunlight penetrates.
  • Down to about 660 feet

12
The Pelagic Zones
  • The pelagic region is divided into three sunlight
    zones.
  • The next zone is the dysphotic or twilight zone.
    Some sunlight reaches this zone, but not enough
    for photosynthesis to occur.
  • Down to about 3,300 feet.

13
The Pelagic Zones
  • The pelagic region is divided into three sunlight
    zones.
  • The last zone is the aphotic or midnight zone.
  • No light, pure saturating darkness.down to the
    very pit of the festering abyss.
  • Bwaa Haaa Haaa Haaa!

14
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15
And now..
  • Something completely different!
  • With 31 and a words.

16
Estuaries
  • An estuary is a partially enclosed body of water
    where incoming seawater is mixed with fresh water
    coming from the land.
  • Like a salt marshfor example..
  • And what is good about a salt marsh?
  • CD

17
Estuaries
  • A Water Filtration System
  • River sediment (and pollution) trapped.
  • Flood Storm Control
  • Hugely absorptive of water..buffer for swells and
    tides
  • Extremely productive.
  • CD of Meerwald

18
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19
Euphotic Zone (in Green)
Neritic
Oceanic zones
Dysphotic Zone
The Pelagic Zones (water zones separated by
light penetration)
Aphotic Zone
Continental Shelf
Bathyal
Abyssal
Hadal
Trenches
The Benthic Zones (Underwater lands)
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