Aquaculture 2 - Aquaculture is defined as the cultivation...

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Aquaculture is defined as the cultivation of aquatic organisms under controlled conditions, usually to be used as food. Some of the most commonly farmed organisms are carp, catfish, clams, mussels, oysters, salmon, shrimp, and tilapia. Our basic premise is that aquaculture could eventually be a positive practice, but right now there are just too many issues for it to be sustainable. Long-term growth of the aquaculture industry requires both ecologically sound practices and sustainable resource management, neither of which are what they should be at present. Types of Aquaculture 1. Fish farming – the main form of aquaculture, involving raising fish commercially in tanks or enclosures, usually for food. All fish farms fall into two main categories - extensive aquaculture based on local photosynthetical production (ex: Tilapia species filter feed on phytoplankton, allowing for higher production due to their low trophic level) and intensive aquaculture, in which the fish are fed with external food supply (carnivorous species that require a high-protein diet and give lower production since they are higher up in the food chain). 2. Mariculture – a specialized branch of aquaculture involving the cultivation of marine organisms for food and other products in the open ocean, an enclosed section of the ocean, or in tanks, ponds or raceways which are filled with seawater. Non-food products produced by mariculture include: fish meal (a powder made from both whole fish and the bones and organs from processed fish, used as a high-protein feed for intensive fish farms), nutrient agar, jewelries (e.g. cultured pearls), and cosmetics.
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This note was uploaded on 07/01/2009 for the course MNS 320 taught by Professor Staff during the Spring '08 term at University of Texas at Austin.

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Aquaculture 2 - Aquaculture is defined as the cultivation...

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