the marine biome
DESCRIPTION
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. Ice 2% Lakes, Rivers and Atmosphere = 1% Ave rage depth is 3800 m eters About 2.4 miles Deepest is 11,045 meters - PowerPoint PPT PresentationTRANSCRIPT
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The Marine Biome
It’s Deep...
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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.• Ice 2% Lakes, Rivers and Atmosphere = 1%
Average depth is 3800 meters• About 2.4 miles
Deepest is 11,045 meters• Mariana Trench
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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
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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 2,000–6,000 m(6,500 - 19,500
feet) deep
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The Benthic Zones
Hadal zone• The deepest region of the oceans (greater than >
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)
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http://www.jochemnet.de/fiu/OCB3043_1b.html
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The Pelagic Zones
The Water columns The Neritic zones
• Above the Continental Shelf to the Shore The Oceanic zones
• Everywhere else
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Prepare yourself...
You need to write a staggering 23 words for the next three slides!
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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
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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.
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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!
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And now…..
Something completely different! With 31 and a & words.
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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 marsh…for example..And what is good about a salt marsh?
– CD
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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
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Aphotic Zone
Dysphotic Zone
Euphotic Zone (in Green)
Neritic Oceanic zones
Tre
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Bat
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Had
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(wat
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