Aquatic Biomes and Tropical Rainforest Essay

An aquatic biome is an ecological community dominate by peeing. This biome support be broken down into two categories oFresh water, which includes rivers, streams, ponds, lakes and freshwater wetland. o devil dog or saltwater, which includes oceans, seas, estuaries, coral reefs and saltwater wetland. Each of these aquatic ecosystems can be defined by variables such as temperature, the presence or absence of light, and the availability of nutrients. Aquatic biomes cover almost all the piece (around 75% of the surface) and only 3% of them be freshwaters. Freshwater ecosystemsThis ecosystem is defined as having a small salt concentration of less than 1%. It helps to introduce up all the different animals life in this planet. Ponds and lakes range in size from few yards to thousands miles across, and they atomic number 18 divided into the litoral regularise, limnetic zone and the profundal zone. The littoral zone is the part of the lake or pond which is shallow and located faithful the shoreline. In this zone there is torrential light, nutrients and names. Those plants provide protection and pabulum for animals, insects and crustaceans. The limnetic zone is offshore, where the water is deep and it receives enough sunlight to support life. in that respect are tiny forms of life called as phytoplankton, which are tiny plant forms, and zooplankton, which are tiny animal forms. Those tiny forms of life lead to large animals life such as fish, which feed from those planktons. The profundal zone is beneath the limnetic zone, where it doesnt receive light to sustain plants life. The organisms that die from above this zone wane down and are being eaten by decomposers. Because ponds and lakes are isolated from some other bodies of water, they dont have new species of animals or plant, or it is limited. Streams and rivers are defined by the ply of water in one direction.The point of reference of these regions can be the snowmelt from the mountains, runo ff of rains, or the out springs of a lake. They flow until they vacate into another body of water and they usually lead ultimately to oceans. The flow of water of streams and rivers changes as it moves. At high elevations (mountains), the waters flow moves swiftly and makes them clear and type Oated. As it moves slower, it allows a more diversity of plants and animals. Because the waters flow moves slowly, it carries more sediment and there is less oxygen in the water. Wetlands are standing waters regions that support aquatic life.Wetlands can receive many names such as swamps, marshes and bogs. Marine or saltwater This ecosystem is defined by its high salt concentration. Oceans are the large aquatic ecosystem that dominates the Earths surface. It is divided into four zones the intertidal zone, the pelagic zone, the benthic zone and the abyssal zone. The intertidal zone is the theatre that is covered and uncovered with the rising and falling of tides. Because of this, the communi ties are constantly changing and most of the financial support organisms live only where the high tides reach. The pelagic zone is the area away from the lands, which is the open ocean.This zone receives little sunlight and it has abundant plankton, which feed animals such as whales. In this zone, there are steady some plants anchored to the bottom of the shore. The benthic zone is beneath the pelagic zone and it doesnt receive sunlight, which makes it darker and colder. The abyssal zone is the deepest area beneath the benthic zone. This area is very cold, it has a great pressure, but it has a low nutrient level. Coral reefs are abundant in tropical water and it consists of a barrier of corals, anemones, and algae. The sunlight penetrates this area, which makes the water clearer and allows a diversity of living organisms.Estuaries are those areas in which freshwater merge with the ocean. This supports animals such as oysters, worms, and steer and supports plants such as algae an d seaweeds. Tropical Rainforest Biome This is the most divers(prenominal) terrestrial biome on Earth. It has a warm and moist environment and is dominated by broadleaf evergreen trees. The combination of constant warmth and moisture makes the tropical rainforest a great environment for many plants and animals, which do this biome as the only one that contains the greatest biodiversity in the world.Because of the great beat of trees in this biome, the soil is infertile and acidic. This is because when an organism decomposes in the soil, the plants absorb it pronto for their quick grow and survival. This biome has several layers of vegetation. The tallest trees reach approximately 50 meters down the stairs them there is a continuous canopy of treetop of approximately 40 meters. And the lower level is composed by small plants, mosses, and fungi. Most of the zoology in this biome is arboreal because the food near the ground is scarce.