Open Ocean Ecosystems

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Open Ocean Ecosystems

Post  Joshua T on Mon Oct 13, 2014 11:52 pm

Photic Zone Abiotic Factors
100%-1% of Sunlight. As depth increases, light decreases.
There is enough sunlight for photosynthesis to occur.
0-200 Meters Deep
0 PSI-288 PSI
As depth decreases, temperature decreases.
Turbidity
Visibility

Aphotic Zone Abiotic Factors
1%-0% of Sunlight. As depth increases, light decreases.
Photosynthesis cannot occur because there is not enough sunlight. At the depths that there is no sunlight, some animals create their own light, not sunlight.
200-1000 Meters Deep
288 PSI-1441 PSI
As depth decreases, temperature decreases.
Turbidity
Visibility

Benthic Zone Abiotic Factors
100%-0% of Sunlight. As depth increases, light decreases.
Photosynthesis can only occur in the areas of the Benthic Zone that sunlight reaches. At the depths that there is no sunlight, some animals create their own light, not sunlight.
0-11034 Meters Deep
0 PSI-15904 PSI
As depth decreases, temperature decreases.
Turbidity
Visibility

Abyssal Zone Abiotic Factors
0% of Sunlight.
Photosynthesis does not occur because there is not sunlight. At the depths that there is no sunlight, some animals create their own light, not sunlight.
2000-6000 Meters Deep
2883 PSI-8648 PSI
As depth decreases, temperature decreases.
Turbidity
Visibility

Photic Zone Animals
Some animals found in the Photic Zone are:
Fish, Sea Turtles, Jellyfish, Whales, Dolphins, Seals, Octopi, Squids, Zooplankton, and Plankton.

Aphotic Zone Animals
Some animals found in the Aphotic Zone are:
Gulper Eels, Giant Squids, Smaller Squids, Anglerfish, Vampire Squids, and Jellyfish.

Benthic Zone Animals
Some animals found in the Benthic Zone are:
Blue Mussels, Sand Gapers, Limpets, Scallops, Common Starfish, Green Sea Urchins, Ragworms, Pectinaria Worms, Scaleworms, Skeleton Shrimps, Isopods, Barnacles, and Crabs.

Abyssal Zone Animals
Some animals found in the Abyssal Zone are:
Deep Sea Anglerfish, Giant Squids, Tripod Fish, and Black Swallowers.

Photic Zone Plants
Some plants found in the Photic Zone are:
Red Algae, Green Algae, Brown Algae, Phytoplankton, and Plankton.

Aphotic Zone Plants
There are no plants found in the Aphotic Zone because there is no sunlight. Where there is no sunlight, photosynthesis could not occur.

Benthic Zone Plants
Some plants found in the Benthic Zone are:
Eel Grasses, Turtle Grasses, Shoal Grasses, Brown Algae, Red Algae, and Green Algae.

Abyssal Zone Plants
There are no plants found in the Abyssal Zone because there is no sunlight. Where there is no sunlight, photosynthesis could not occur.

Environmental Issues
Overfishing is draining the life from the water.
Ocean’s most important predators are being killed just for fins.
Ocean dead zones are growing.
Mercury pollution is going from coal, to oceans, to fish, and to our dinner tables.
A swirling plastic soup that you can see from space.

Interesting Facts
The Smithsonian states that as much as 99% of the world's inhabitable space is in the ocean, making this region and those that inhabit it a huge part of life on earth.
The World Register of Marine Species estimates that there are more than 199,000 marine species that remain unnamed.
There may be as many as 25 million species that dwell in the ocean, although no one is sure.
The deepest point in the ocean is the Challenger Deep at 11,034 meters.

References
http://oceanservice.noaa.gov/facts/pressure.html
http://www.britannica.com/EBchecked/topic/457662/photic-zone
http://www.brighthub.com/environment/science-environmental/articles/63526.aspx
http://www.molluscs.at/gastropoda/index.html?/gastropoda/sea/common_whelk.html
http://www.enchantedlearning.com/biomes/ocean/sunlit/
http://www.ehow.com/info_8473756_open-ocean-kids.html

Joshua T
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Re: Open Ocean Ecosystems

Post  Mira W. on Sun Oct 19, 2014 6:17 pm

Interesting post!

It is very true; humans are destroying the oceans through over-fishing, oil spills, and littering. The other issue that concerns water is the drought the U.S. is currently experiencing. For example, those who live in the countryside areas of California are using wells to obtain water, without knowing for how long they can do so. The wells they are using to go on about their everyday lives might be dried up within a few months! As a result, many might make the logical conclusion that the government is doing anything in its power to reduce the amount of water used.To the contrary, in the California area, agricultural profits reached an all-time high at 1/3 of a billion dollars! Rice farmers just keep flooding their fields, pumping water out of the ground 24/7, as if they don't care about the future.

I wonder what will happen if things continue on as they are now ...
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Mira W.
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Re: Open Ocean Ecosystems

Post  Sarah Marti Roy on Thu Oct 23, 2014 6:27 pm

I used to think that 90% of the ocean was unknown, however it only the ocean floors that we don't know. I had hope for mermaids until Joshua presented this ecosystem and crushed my dream. However, a lot of information here. Very interesting and useful. I learnt something new (:
Keep it up Josh.
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Sarah Marti Roy
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