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%

Average depth is 3800 meters• About 2.4 miles

Deepest is 11,045 meters• Mariana Trench

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

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

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)

http://www.jochemnet.de/fiu/OCB3043_1b.html

The Pelagic Zones

The Water columns The Neritic zones

• Above the Continental Shelf to the Shore The Oceanic zones

• Everywhere else

Prepare yourself...

You need to write a staggering 23 words for the next three slides!

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

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.

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!

And now…..

Something completely different! With 31 and a & words.

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

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

Aphotic Zone

Dysphotic Zone

Euphotic Zone (in Green)

Neritic Oceanic zones

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