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Friday, September 5, 2008

Why are marine plants important for marine lives?

Marine plants are important for marine lives because they provide food, oxygen and shelter.

Food
There are many marine plants in the ocean supporting like but the most important of them all is phytoplankton6. Phytoplankton are alone responsible for 50% of the oxygen in the atmosphere and the majority of the food in the ocean.

Plankton7 feeds on phytoplankton and someof the marine life in the ocean, from tiny fish to giant shark and whales, feeds on Plankton.
The annual bloom of the phytoplankton determines the breeding cycles for most marine life. Fish, mammals and crustacean travel vast distances across the oceans search for the blooms.
Without phytoplankton, most of their inhabitants will starve, and there will not be a large population of marine lives living in the ocean.

Oxygen
The plant life in the oceans releases huge amounts of oxygen into the water, allowing marine life to breath.
It is beacuase if the lack of plant life in the great ocean depths (they can't photosynthesize without sunlight) that marine life there is so sparse.

Shelter
The ocean is a vast empty space. There isn't much to hide behind to avoid predators but floating seaweed or other plant life provides a great escape for small fish and crustaceons that would otherwise be quickly eaten up.
The kelp forest of the oceans are a "safe harbour" for marine life. Kelp can grow to be several metres tall and houses many fish, crustacean and even some mammals in its leaves and stems


^ Example of a crustacean


^ Kelp

Source :
· info - WikiAnswers
· picture - Kelp, Wikipedia



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