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Capstone Projects

Rooted Education: learning from aquaponics

Sat, 04/30/2016 - 15:02
Abstract: Aquaponics is the integration of soil-less agriculture (hydroponics) within closed-loop aquaculture systems to reduce the toxic accumulation of nutrient waste from aquatic animals. Bacteria naturally establish to purify water by oxidizing the ammonia secreted by fish, which reduces the toxicity of effluent while creating a usable nitrogen source for plants. The conversion of ammonia and nitrite into nitrate by living bacteria communities is called a biological filter, or biofiltration (FAO 2014). Aquaponics would not be possible without biofiltration; the slightest amount of ammonia would be fatally toxic to fish, and plants wouldn't receive the nitrates they need to grow. There are unique opportunities offered by an aquaponics system to learn about ecological and human communities. 1.1. Aquaponics enables users to grow fish and agricultural plants with limited space and resource use (water, soil, and time). This enables an aquaponics user to invest less physical energy and time into expanding sustainable food resources for their household use. 1.2. A small aquaponics system could promote cultural values of self-sufficiency, energy consciousness, and connection to food systems. It could inspire individual efforts to produce food for one’s household, to build healthier and more resilient systems, and a greater appreciation for farming. Therefore, this project aims to actualize a mobile and functional aquaponics system for the educational benefit of the Paul Smith's College community. I will provide the background knowledge needed to maintain an aquaponics system, as well as describe the general concept of aquaponics design.
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Literary Rights: On
Major: Environmental Sciences, Natural Resources Sustainability Studies
Year: 2016
File Attachments: The Author has selected not to publish this complete work.
Authors: Brian Jason Kohan

Management Plan of the Ring-Tailed lemurs (Lemur catta) at Beza Mahafaly Special Reserve in Madagascar

Tue, 05/03/2016 - 11:29
Abstract: The need to protect Ring-tailed lemurs is evident. Lemurs are the most threatened group of vertebrates in the world with the IUCN listing 94% of lemur species as threated. This high percentage is in part due to the fact that lemurs only occur naturally in Madagascar so changes to the island effects the whole infraorder (Lemuriformes). Helping to curb illegal activities will protect not just the habitat for Ring-Tailed lemurs but will help the entirety of Madagascar’s Wildlife that has evolved on an island that used to be covered by up to 90% forest. These illegal practices are often protected by armed guards which may require assistance from the Madagascar government for adequate protection of the islands forests
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Literary Rights: Off
Major: Fisheries and Wildlife Science
Year: 2016
File Attachments: The Author has selected not to publish this complete work.
Authors: Elias Carter

Management of the Invasive American Mink (Neovison vison) Populations in the Southern Region of South America (Cape Horn Biosphere)

Tue, 05/03/2016 - 11:24
Abstract: American mink (Neovison vison) are an invasive species in South America, Europe and a few other countries. An invasive predator like the American mink can have negative effects on ecosystem function. In the Cape Horn biosphere, mink have no natural predators and have established themselves as top predator in that ecosystem (Crego 2015). Their populations have steadily increased in the Cape Horn Biosphere Region since their release from mink farms in 1930 (Ibarra et al. 2009). The Cape Horn biosphere is affected by the loss of native fauna such as Magellanic woodpeckers (Campephilus magellanicus), Olive Grass Mouse (Abrothrix olivaceus), and different types of ducks (Anseriforms) due to American mink predation. The Cape Horn Biosphere is a research, education, and conservation land that is used by institutes and universities (Ibarra et al. 2009). There are four objectives to help prevent the further spread of the invasive American mink that include: Educating the general public in the Cape Horn Biosphere region on the negative implications of invasive species, increasing the number of minks trapped by 15% in 1 year, setting environmental laws against the release of mink from fur farms within 5 years, creating a tactile agency to enforce those laws within 5 years. When all objectives are complete there will be a decreasing trend in American mink populations in Southern South America.
Access: No
Literary Rights: Off
Major: Fisheries and Wildlife Science
Year: 2016
File Attachments: The Author has selected not to publish this complete work.
Authors: Eleanor Congden