Analysis of common water sampling techniques used to assess lake trophic state
Sat, 12/05/2015 - 00:21
Abstract: Volunteer lake management programs (VLMPs) across the country employ different surface water sampling techniques to establish long-term trends in nutrient availability and trophic state. The three most common techniques are a surface grab (SG), 2m integrated tube sampler (IT), and a discrete sampler, such as a Van Dorn or Kemmerer bottle deployed to a depth of 1.5m (DD). These various sampling techniques vary not only in depth, but also in cost and ease of use. The objectives of my study are to 1) determine if there is a statistical difference in chlorophyll-a (chl-a) and total phosphorus (TP) concentration obtained between the three different sampling techniques, 2) determine if the treatment effect (sampling device) varies over time, 3) determine which method has the least amount of variability, and 4) determine if sampling technique ultimately influences trophic state classification. The study was conducted on Upper St. Regis Lake, Paul Smiths, New York. I collected 10 samples from the lake using the three different techniques during the months of June – August, 2015. I found a significant difference in chlorophyll-a concentration between sampling techniques during June and July, and during the month of July for TP. The three sampling techniques yielded similar variability for chlorophyll-a but significantly different variability for TP. Ultimately, the trophic status rating for Upper St. Regis was not effected by sampling technique. My study suggests that VLMP should utilize a SG or IT rather than a costly DD sampler.
Literary Rights: On
Major: Environmental Sciences
The Portable Glass Business Plan
Wed, 12/02/2015 - 10:18
Abstract: This is a capstone on a business plan for a start up company. This business is an educational style catering company that teaches classes on how to pair foods with various alcoholic spirits (beer, wine,and hard cider). The business itself is based out of Burlington, Vermont and does business throughout the Champlain Valley areas of Vermont and New York.
Literary Rights: Off
Major: Food Service and Beverage Management
Environmental Factors Influencing the Establishment of Moss Species in the Elevator Shaft on Whiteface Mountain: A Descriptive Study
Wed, 12/02/2015 - 15:19
Abstract: The moss species growing in the elevator shaft on Whiteface Mountain have not yet been identified and little is known on the environmental conditions in which they exist. Light, moisture, substrate pH, and temperature play vital roles in the establishment and reproduction of moss. In the summer of 2015 eight moss species, present only in their gametophyte generation, were identified in the shaft. Four of these species are known to exist on the mountain outside of the elevator shaft. Temperature and relative humidity were measured to represent the conditions of the shaft, whereas available light, moisture, and substrate pH were measured with each colony. Temperature and humidity became more stable further into the shaft, similar to that of a cave environment. In addition, temperature peaked during the hours the elevator was in operation. Light, moisture, and substrate pH of each species were not strongly correlated with colony area. Most colonies were found to be growing on a type of sediment, rather than directly on the granite wall of the shaft. The pH of these substrates ranged between 6.68 and 8.99. The influx of tourists on Whiteface between May and October may play a vital role in the establishment of these species. The elevator may provide air circulation within the shaft and the electric lights omit the radiation necessary for the mosses survival. There is a 6 month period with possibly no light source or circulation of air. Further research should document these changes in environmental conditions during this period.
Literary Rights: On
Major: Integrative Studies
File Attachments: Capstone Report_Maloney_Moss on Whiteface Mountain