Aquaponics Projects For Beginners
Aquaculture is the cultivation offish, shellfish, or aquatic plants in natural or controlled marine or freshwater environments. Estimates report that about 20 percent of all commercial fish are raised in an aquaculture environment, and that this industry will continue to grow in the 21st century. Today, aquaculture is a multimillion dollar business. Much of the trout, catfish, and shellfish consumed in the United States are products of aquaculture. Global demand for seafood is projected to increase by 70 percent in the next 30 years. In fact, the world's fastest growing area of animal production is the farming of fish, crustaceans, and mollusks, particularly in Asia. A consensus is growing that a dramatic increase in aquaculture is needed to supply future aquatic food needs.
According to the 2005 World Geothermal Congress, 72 countries reported using geothermal energy for direct uses (e.g., space heating, snow melting, aquaculture, and greenhouse use) providing over 16,000 MW of geothermal energy and 24 countries used geothermal to produce 8,900 MW of electricity directly. Reykjavik, Iceland's capital, is heated completely by geothermal energy from volcanic sources within the Mid-Atlantic Ridge that intersects the country. In fact, water reservoirs with temperatures of 80 C-180 C were tapped to provide reliable and low cost heating for homes, businesses and industry.
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