Life in the ocean
- 71% of Earth's surface is covered with ocean.
- Ocean ecosystems exhibit great diversity.
- The ocean does not contain much plant life, because concentrations of critical nutrients are lower than they
are on land.
- The global distribution of what few nutrients there are depends largely on the temperature stratification of the ocean.
- Most of the water found in the deep ocean originated at the surface in the coldest parts of the world, it sank carrying large amounts of dissolved oxygen.
- Every 10 meters of seawater adds roughly another atmosphere of pressure.
- Most deep-sea animals are also small. Many mid-water fishes, for distance, are no more than 20cm long.
- 90% of the mid-water species of fish and invertebrates, and many deep-sea fishes have relatively large eyes, so they can see by this faint light.
- Coral reefs occur at depths of 30m, they must have warm, tropical water to survive.
- Corals are colonial animals that live in symbiosis with tiny photosynthetic creatures called zooxanthellae and that produce a hard calcium carbonate skeleton, which forms the essential architecture of the reef.
- The ocean communities and creatures that nearest shore: coral reefs, sea-grass beds, kelp forests, coastal mangroves, salt marshes, mudflats and estuaries.
- 70% of the world's fisheries are operating at or beyond sustainable levels.
Covering over 70 percent of the Earth’s surface, the ocean represents our planet’s largest habitat, containing 99 percent of the living space on the planet. This vast area supports the life of nearly 50 percent of all species on Earth. Scientists are currently conducting the first ever “Census of Marine Life,” to assess and explain the diversity, distribution, and abundance of life in the ocean. Expected to be completed in 2010, this project will be the first to develop a comprehensive global list of all forms of life in the ocean. Additionally, scientists estimate that perhaps a million or more species remain unknown, yet to be discovered. Biological productivity of the ocean plays a vital role in the global climate and carbon cycle and provides nearly 50 percent of Earth's oxygen and 20 percent of the world's protein supply. Species from the ocean are also potential sources of new medicines. Animals in the ocean are divided into three groups: zooplankton, nekton, and benthos. There are two general types of plants found in the ocean, those having roots that are attached to the ocean bottom and those not having roots which simply drift about with the water.
Ocean ecosystems are being assaulted and degraded. To save oceans, we need to observe holistically and to think systemically. To save oceans diverse interest groups need to network and collaborate. It will take combined efforts by many to undo some of the damages we have done. The better we coordinate the more we’ll accomplish and the better will be our stewardship moving forward.
So what?
- Ocean is the very important to our life. Without ocean, Earth enable to exist. in the ocean, there are billions of organism, creature, life that we have never think or imagine that can exist.
What if?
- All life in ocean extinct? Ocean become dead ocean or black ocean. Without ocean, people, and animals on land will die immediately.
Says who?
- According the authors of Life in The OceanJames W. Nybakken and Steven K. Webster
What does this remind me of?
- This is remind me of the ocean acidification, because they're both talking about ocean life.
- Ocean ecosystems exhibit great diversity.
- The ocean does not contain much plant life, because concentrations of critical nutrients are lower than they
are on land.
- The global distribution of what few nutrients there are depends largely on the temperature stratification of the ocean.
- Most of the water found in the deep ocean originated at the surface in the coldest parts of the world, it sank carrying large amounts of dissolved oxygen.
- Every 10 meters of seawater adds roughly another atmosphere of pressure.
- Most deep-sea animals are also small. Many mid-water fishes, for distance, are no more than 20cm long.
- 90% of the mid-water species of fish and invertebrates, and many deep-sea fishes have relatively large eyes, so they can see by this faint light.
- Coral reefs occur at depths of 30m, they must have warm, tropical water to survive.
- Corals are colonial animals that live in symbiosis with tiny photosynthetic creatures called zooxanthellae and that produce a hard calcium carbonate skeleton, which forms the essential architecture of the reef.
- The ocean communities and creatures that nearest shore: coral reefs, sea-grass beds, kelp forests, coastal mangroves, salt marshes, mudflats and estuaries.
- 70% of the world's fisheries are operating at or beyond sustainable levels.
Covering over 70 percent of the Earth’s surface, the ocean represents our planet’s largest habitat, containing 99 percent of the living space on the planet. This vast area supports the life of nearly 50 percent of all species on Earth. Scientists are currently conducting the first ever “Census of Marine Life,” to assess and explain the diversity, distribution, and abundance of life in the ocean. Expected to be completed in 2010, this project will be the first to develop a comprehensive global list of all forms of life in the ocean. Additionally, scientists estimate that perhaps a million or more species remain unknown, yet to be discovered. Biological productivity of the ocean plays a vital role in the global climate and carbon cycle and provides nearly 50 percent of Earth's oxygen and 20 percent of the world's protein supply. Species from the ocean are also potential sources of new medicines. Animals in the ocean are divided into three groups: zooplankton, nekton, and benthos. There are two general types of plants found in the ocean, those having roots that are attached to the ocean bottom and those not having roots which simply drift about with the water.
Ocean ecosystems are being assaulted and degraded. To save oceans, we need to observe holistically and to think systemically. To save oceans diverse interest groups need to network and collaborate. It will take combined efforts by many to undo some of the damages we have done. The better we coordinate the more we’ll accomplish and the better will be our stewardship moving forward.
So what?
- Ocean is the very important to our life. Without ocean, Earth enable to exist. in the ocean, there are billions of organism, creature, life that we have never think or imagine that can exist.
What if?
- All life in ocean extinct? Ocean become dead ocean or black ocean. Without ocean, people, and animals on land will die immediately.
Says who?
- According the authors of Life in The OceanJames W. Nybakken and Steven K. Webster
What does this remind me of?
- This is remind me of the ocean acidification, because they're both talking about ocean life.