| Aquatic Ecosystem |
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| CATEGORIES ABOUT AQUATIC ECOSYSTEM | |
| aquatic ecology | |
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An aquatic ecosystem is an Ecosystem located in a Body Of Water . Communities of Organisms that are dependent on each other and on their environment live in aquatic ecosystems. The two main types of aquatic ecosystems are Marine Ecosystem s and Freshwater Ecosystem s.1 TYPES OF AQUATIC ECOSYSTEMS Aquatic ecosystems can be divided into two general types: marine ecosystems and freshwater ecosystems. Neritic (the relatively shallow part of the ocean that lies over the Continental Shelf ); Profundal (bottom or deep water); Benthic (bottom substrates); Intertidal (the area between high and low tides); Estuaries . Marine ecosystems near the Hawaiian Islands is an example of a complex marine ecosystem.]] Marine ecosystems cover approximately 71% of the Earth's surface and contain approximately 97% of the planet's water. They generate 32% of the world's net Primary Production . They are distinguished from freshwater ecosystems by the presence of dissolved Compounds , especially Salt s, in the water. Approximately 85% of the dissolved materials in Seawater are Sodium and Chlorine . Seawater has an average salinity of 35 Parts Per Thousand (ppt) of water. Actual salinity varies among different marine ecosystems.2 Marine ecosystems can be divided into the following zones: Oceanic (the relatively shallow part of the ocean that lies over the Continental Shelf ); Profundal (bottom or deep water); Benthic (bottom substrates); Intertidal (the area between high and low tides); Estuaries ; Salt Marshes ; Coral Reef s; and Hydrothermal Vent s (where Chemosynthetic Sulphur Bacteria form the food base). Classes of organisms found in marine ecosystems include Brown Algae , Dinoflagellate s, Coral s, Cephalopod s, Echinoderm s, and Shark s. Fish caught in marine ecosystems are the biggest source of commercial foods obtained from wild populations. Environmental problems concerning marine ecosystems include unsustainable exploitation of marine resources (for example Overfishing of certain species), Water Pollution , and building on coastal areas. Freshwater ecosystems |
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