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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.
Access: No
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 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

A Comparison Study of Adirondack Region Clearcutting Implementation to that of Paul Smith’s College VIC FERDA Plots

Mon, 05/02/2016 - 10:44
Abstract: The students of Paul Smith’s College have a unique opportunity to explore the parameters of silviculture and forestry practices. Gaining the base knowledge of silvicultural systems while also, properly implementing timber harvesting methods in order to achieve the specific goals and objectives of these systems is tremendously useful for implementation in future years. This study investigated the silvicultural prescriptions of the Forest Ecosystem Research and Demonstration Area (FERDA) plots on Paul Smith’s College lands, in Paul Smiths, New York. Comparing the inventory of the two clearcut sites upon these lands to that of other harvests within the Adirondack Park can supply further knowledge on what can be expected after a specific silvicultural system. Clearcutting has the greatest effect on forest succession by removing the forest cover and allowing light to reach what was once a shaded forest floor. Comparing experimental five acre clearcuts to that of larger commercial clearcuts in the same region can further our understanding of regeneration composition after such timber harvesting operations occur. The variance between the age of the FERDA plot harvests and the age of the harvests completed on Landvest timberlands resulted in varying data. However, if four to eight more years was given for pseudo FERDA plots to mature, it is believed that these harvests would be similar in composition and structure.
Access: No
Literary Rights: On
Major: Forestry
Year: 2016
File Attachments: The Author has selected not to publish this complete work.
Authors: Ryan Krzys, Louis Ferrone III