Aquculture
By Willie Johnson
Abstract Destruc on of pens Aquaculture is the farming of aquatic organisms. Farming Abnormally high des can damage netpens and allow means some form of interference in the nurturing process to Affects on the environment Habitat destruc on thousands of fish to escape. The escaped fish start maximize production, like protecting them from predators Aquaculture was intended to help our environment by preventing overfishing and Aquacultures are in direct compe on of natural habitats. compe ng for resources which risks popula on diversity and being regularly fed. Aquaculture comes in many forms destruction of habitats but it can harm the environment with its existence. Escaped fish and endanger compe ng species. The farms also need like shrimp farming, fish farming, algaculture or seaweed from aquafarms may alter populations of wild fish by competing and inter-breeding. Mangroves and saltmarshes are natural ways to prevent protec ng from preda on, as many shore birds like to farming, oyster farming, mariculture (cultivation of the fish being farmed can also spread diseases and parasites to the surrounding erosion are being destroyed to create new aquaculture eat fish. In deep water pens present risks with larger fish organisms in seawater). Aquaculture’s purpose is to help environment. Genetically modified fish may increase pollution concerns. The fish in spaces. Mangroves help with reproduc on of many marine or mammals as they can damage the nets and allow fish preserve the existing ecosystem from over fishing but can the aquaculture systems produce waste along with being overfed, the combination of to escape. Pens in deeper water would be more also present environmental problems such as pollution. the two present problems on the outside environment. The food chain is altered and organisms by giving them a place to hide. In other beneficial for the environment since the waste and food Smaller fish are stocked in farms to produce fish oils and can have an affect on the outside environment. All the excess waste and food seep countries when the aquacultures experience diseases and can be dispersed in a greater area but to remain cost fish meal, which are big parts to feeding more marketable through the nets and rest on the bottom present many problems like damaging bottom efficient there needs to be a remote controlled feeding fish. Farmed fish supply close to one third of the global a shi in demand most of them are le abandoned. And dwelling life, Eutrophication or depletion of oxygen in the water. while the pollution op on to prevent daily trips. Other fish can get stuck in demand of seafood and is a growing industry. There are a from these fish farms is relatively small compared to sewage we create, it still can the marshes and mangroves that were once needed are the nets that are used to keep the aquaculture from couple different methods for aquaculture most farms are present problems locally. The waste that does get through only affects the local area demolished for temporary aquafarm use. Exo c fish are being released, which presents another problem of Water based systems, which are in natural bodies of water and doesn’t do enough harm to affect the environment on a global scale. someone having to clean the pens. using cages netpens and land based systems that rely on shipped to aquaculture farms to provide food locally
ponds with irrigation. A big concern is damage to water causes non-indigenous diseases to be spread in local based systems where captive organisms can escape and waters. present complications in the ecosystem neighboring it.
Risks of Aquacultures
Fish for fish feed Role in global food supply “a fish farm with 200,000 salmon releases nutrients and fecal matter roughly Fish feed for aquacultures rely on wild caught fish for the oils and fishmeal, two Conclusion Aquaculture already accounts for one third of fish equivalent to the raw sewage generated by 20,000 to 60,000 components to artificial fish feed. The fish being caught for feed aren’t typically Aquacultures are meant to prevent destruction of life in the consump on globally but is on the rise. “Aquaculture or people” (www.iatp.org).farming in developing countries has caused destroyed consumed by humans. Usually by-catch or fish that are caught and considered as oceans but in all reality they are just as destructive. The fish farming will provide close to two thirds of global food wetlands and mangrove forests, including large amounts of pollution in the water. The waste are included into making the feed. When the fish are caught to made into possibilities of farmed fish escaping and competing with fish consump on by 2030” (Jones, 2014) Aquaculture may United States regulates fish farming more since the industry is comparatively small food it presents problems for the predatory fish relying on the same species. others affect the ecosystem immensely. The antibiotics used be the only way to significantly increase seafood and hasn’t caused many problems yet. There are many approved herbicides for U.S. Aquacultures are supposed to end the need for catching wild fish as it is to to fight off bacteria present health risks for humans. The produc on, and can be less destruc ve to ecosystems aquaculture facilities to help control algae blooms, and fouling organisms but are supply our needs but to feed the captive in farms rely heavily on wild caught destruction of mangroves to provide space for future than mass fishing. With a growing popula on and limited mostly in tank-based and pond aquaculture. Netpen users have a copper-based algae fish. There are alternatives to for fish feed like vegetable proteins that could be aquacultures is destructive for the environment. The massive supply of fish, fish farming seams to be the most killer on the nets to prevent growth of fouling. Copper is toxic but the amount used is used but more research is needed to develop it. The vegetable proteins would be amount of pollution that is created from aquacultures directly promising route to provide for the rising demand. New relatively safe. Some antibiotics and pesticides are approved chemicals that are used in fed to herbivores and the herbivores can be fed to many of the carnivorous fish affects the organisms around it and can alter food chains. sources of food and jobs are created with more aquaculture. Since fish farming is all about profit, the cages and pens are cluttered with that are captive thus providing a better system without using wild caught fish. Although all these examples point toward negative impacts aquacultures being made. China produces the most fish fish. Bacteria thrives in densely populated areas leaving aquacultures vulnerable. Most on the environment, aquaculture will be our future if we like from aquacultures and also consumes the most. With the aquaculture farms use antibiotics and other chemicals to maximize yield and prevent it or not. It would make sense to understand the direct impacts popula on booming the increase of aquafarms poses a diseases. Antibiotics are given to the captive organisms by being mixed in with their and ways to prevent destruction of marine life and risk for the environment. If the wild caught fish remain a food and through medicated baths. Antibiotics being used in aquaculture allow bacteria ecosystems. part of providing food for the farms then the aquacultures to become immune and humans use the same products, which ultimately creates health that are depended on will cause destruc on of life in the risks. ocean. Aquafarming looks promising but many rules need to be in place to protect the ocean and the life in it. The Works Cited availability of future coastal sites presents problems and would send aquacultures into deeper waters. With more Emerson, C. (1992, December). Aquaculture Impacts on aquacultures needed to provide for the global demand, the Environment. Retrieved from h p://. www.csa.com/ more jobs will be created. There are many types of jobs discoveryguides/aquacult/overview.php required to maintain the aquacultures to regula ons. On Evans, S. (n.d.). Green Living Ideas | Keeping Green the other hand with more aquacultures come fewer jobs Ideas Simple and Down to Earth. Retrieved December 9, for fisherman since the aquacultures can sell their fish for 2014, cheap it floods our super markets. Charter services can be Jones, N. (2014, February 4). Raising More Fish to Meet harmed because deep water pens are increasing in Rising Demand. Retrieved from h p:// preferable fishing areas. www.worldbank.org/en/news/feature/2014/02/05/ raising-more-fish-to-meet-rising-demand Phillips, M. J., & Funge-Smith, S. (2001). Aquaculture . Systems and Species. Retrieved from h p:// www.fao.org/docrep/003/ab412e/ab412e07.htm