Coral reefs are the 'rain forests' of the ocean, containing the highest diversity of marine organisms and facing the greatest threats from humans. As shallow-water coastal habitats, they support a wide range of economically and culturally important activities, from fishing to tourism. Their accessibility makes reefs vulnerable to local threats that include over-fishing, pollution and physical damage. Reefs also face global problems, such as climate change, which may be responsible for recent widespread coral mortality and increased frequency of hurricane damage. Start saving the reef NOW!
Monday, August 25, 2008
Wednesday, August 20, 2008
Marine Conservation
Our group feels that if we can conserve marine life, we would be able to enchance our world's beauty.We should care about corals, creatures and fishes that are found in the oceans, seas and so on. We think that life under water may never be easy. We should pity these creatures as we have a wonderful life here on land. We enjoy looking at corals when scuba-diving. So please, everyone,help us out!
Tuesday, August 19, 2008
Threats to the ocean
Our oceans once seemed like an infinite resource, but today, they face so many threats, that their future is in question. We know less about our oceans than we do about outer space, but our activities threaten to destroy oceans that were once teeming with life. The key threats facing our oceans include:
- Whaling
- Overfishing
- Factory Fishing
- Global Warming
- Bycatch
- Pollution
- Fish Farming
- Whaling
- Overfishing
- Factory Fishing
- Global Warming
- Bycatch
- Pollution
- Fish Farming
What is corals
Corals are marine organisms and exist as small sea anemone–like polyps, typically in colonies of many identical individuals.Consequently, most corals depend on sunlight and grow in clear and shallow water, typically at depths shallower than 60 m (200 ft). These corals can be major contributors to the physical structure of the coral reefs that develop in tropical and subtropical waters, such as the enormous Great Barrier Reef off the coast of Queensland, Australia. Other corals do not have associated algae and can live in much deeper water, such as in the Atlantic, with the cold-water genus Lophelia surviving as deep as 3000 m.
Monday, August 18, 2008
What is Marine Biology?
Marine biology is the scientific study of living organism in the ocean or other marine or brackish bodies of water. Marine life is a vast resource, providing food, medicine, and raw materials, in addition to helping to support recreation and tourism all over the world Marine organisms contribute significantly to the oxygen cycle, and are involved in the regulation of the earth's climate. Shorelines are in part shaped and protected by marine life, and some marine organisms even help create new land. It studies habitats such as coral reefs, kelp forests, tidepools, muddy, sandy and rocky bottoms, and the open ocean zone, where solid objects are rare and the surface of the water is the only visible boundary.A large amount of all life on Earth exists in the oceans. Exactly how large the proportion is still unknown. The oceans comprise about 71% of the Earth's surface.Many species are economically important to humans, including the food fishes. Large areas beneath the ocean surface still remain effectively unexplored.
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