The Large Aquatic Eco System includes wetlands, rivers, lakes and sea. The living resources that live in this large ecosystem provide with major portion of food supply to the world. This large aquatic ecosystem provides ecological services such as ground water recharge, air purification, nutrient cycling and wildlife habitat. It also provides tourism and recreation services. The coastal communities along with other shipping and energy production manufacturers’ impact economic growth. As a result these ecosystems are proved important as a source of water and for providing economic benefits.
The Aquatic Eco System supports thousands of species including human beings. The importance of aquatic ecosystems is as important as water in a human body. A human body contains only 60 percent of water but the marine ecosystems occupies 71% of the Earth’s surface and contain 97% of the planet’s water. These resources are not only useful as drinking water but are also useful for producing food, clothing, generates power and also helps in moving out waste, thus keeping the environment clean and healthy. In U.S. around 6 percent of electricity is generated by hydroelectric sources.
The Aquatic Eco System consists of Marine Ecosystem and Fresh Water Ecosystem. Marine Ecosystem includes the largest ecosystem of earth such as oceans. These are important for the health of marine as well as terrestrial environment. Fresh Water Ecosystem includes lakes, rivers, wetlands, ponds and springs.
The important impacts to these ecosystems are caused directly pollution from commercial, recreational and military vessels originates from a various sources that include: gray water, sewage water, anti-fouling paints, hazardous materials and other garbage. The cruise ship has expanded in recent years; as a result the concern over the impacts on water quality has grown.
The government has enacted the Marine Protection, Research and Sanctuaries Act (MPRSA, also known as the Ocean Dumping Act) in 1972 to ban the dumping of waste material in the ocean that unreasonably degrades or causes ill health to human beings. The sediments found in ocean today is dredge material dumped in the past years. Ocean dumping is not allowed until a permit is sanctioned under the MPRS Act.
Marine wreckage is a solid material that enters waterways directly or indirectly. Marine wreckage enters oceans and coasts from sources connected to land and oceans. The marine debris continues to increase as more people move near to the coasts each year which as a result increases production in trash. It is better to control the discarding of trash and other wastes when the situation is under control if not we may find marine wreckage in our rivers and streams.