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Capstone Projects

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.
Access: Yes
Literary Rights: On
Major: Environmental Sciences
Year: 2015
Authors: Hunter Favreau

Limnological Report of Marvin (Potters) Pond

Thu, 04/30/2015 - 09:51
Abstract: Long term data of limnological conditions is crucial to understand lentic freshwater ecosystems. Marvin (Potters) pond is a 2.04 hectare kettle pond located in Franklin County, New York in the Northern Adirondack Park. There have been numerous short studies of the pond over the past 30 years but the pond has never been intently monitored to date. The pond is assumed to be meromictic by the NYSDEC. The objectives of this study are to 1) calculate the morphometry of the pond and its watershed; 2) the determination of the trophic status of the pond; 3) to document the chemical composition of the pond, particularly as it relates to acidity and acid neutralizing capacity; 4) to document the annual dynamics of temperature and dissolved oxygen. Evidence from profile data on dissolved oxygen and total iron suggests that the pond is monomictic with the capability to be meromictic under certain climatic conditions. The mixing period of the pond occurred in the month of November. The morphometry of Marvin pond was found to have a conical cross sectional area and large depth for the surface area of the pond. The trophic state of Marvin pond was found to be eutrophic for chlorophyll-a and total phosphorus concentrations but mesotrophic for the secchi disk reading. The acidity of the pond was found to be high with a low buffering capacity.
Access: Yes
Literary Rights: On
Major: Environmental Sciences
Year: 2015
Authors: Robert Frank

Trophic status of Lake Placid over the past 2740 + 30 years inferred by sub-fossil diatom analysis.

Thu, 04/30/2015 - 11:07
Abstract: The hypothesis of this study was that human activity in the Lake Placid watershed would cause changes in the lakes trophic status. Trophic status was inferred by changes in diatom assemblages over time. This analysis shows that an unusual increase in Asterionella and Tabellaria has occurred within the past 200 years. Both of these species are indicators of higher trophic status, so their increase in numbers indicates a recent increase in trophic status (Stager 2001, Rawson 1956, Stevenson et al, 1982). Loss on ignition tests were used to determine the organic content of samples from two cores. These tests showed that organic content has varied in the past, however changes observed in the upper 20 cm of the record for Lake Placid and Wolf Lake suggest that human activity impacted the lake. The data collected in this study supports the hypothesis that human settlement in the Lake Placid watershed has changed its trophic status.
Access: Yes
Literary Rights: On
Major: Environmental Sciences
Year: 2015
Authors: Alex Garrigan-Piela

Investigating Amount of Sample Points Necessary for Accurate Topographic Representation of the Ground Truth

Wed, 04/29/2015 - 18:18
Abstract: Topographic or elevation data has many uses and applications especially when it is converted into a Digital Elevation Model (DEM). Such uses are erosion modeling, surface hydrology, watershed modelling geomorphology, land-sliding, agriculture and ecosystem modeling to list a few examples. This project intends to determine the amount of topographic data points that need to be collected in order to create an accurate model of the ground topography. To accomplish the objective, a topographic survey was conducted on a grid pattern, with a spacing of 7.5 feet between points regularly spaced over one acre. After the data were collected, varying percentages of the total amount of points collected were removed and the resulting digital elevation model (DEM) was compared to the ground truth DEM. When comparing accuracy of interpolated elevation across the entire DEM with a RMSE (root mean square error) it was found that using a subset of 25-30% of the entire data set were needed to create a model that did not significantly differ from the Ground Truth. The change in volume of the elevation surface compared to the Ground Truth results in a linear relationship, as more points are added the closed the change in volume is to zero. The P value derived from the T-test of the mean elevations of the trial DEM’s and the Ground truth, reflect the results from the change in volume, as more points are added the closer to the truth the DEM becomes.
Access: Yes
Literary Rights: On
Major: Forestry
Year: 2015
File Attachments: Final_Report_RGM.docx
Authors: Ryan McGowan

Implementing an Educational Demonstration Forest with Working Elements of Silviculture, Wildlife, Recreation, and Water in Harrietstown, Adirondack, NY

Tue, 05/05/2015 - 11:15
Abstract: The project being conducted will provide rationale about the importance of working forestry, all while maintaining positive public sentiment within the forest products industry. The project will focus on public education and maintain water quality, wildlife habitat, and recreational opportunities. The public will see developed interpretive areas with signage at points of interest. The designated area is located near the Adirondack Regional Airport, Hunt Road and NYS Route 30, and is comprised of 226 acres. There are varying stands in the tract that range from pure softwood, hardwood and mixed wood stands. After the designated area was selected, a timber cruise was conducted along with note taking and visual analysis of how the area could entice public use and education. Once all the data was gathered, the conclusion drawn was throughout all different forests types in the tract, there were multiple educational opportunities pertaining to water quality and wildlife habitat through use of sustainable forestry methods. The significance of this project is to facilitate public education on how forestry can be sustainable and beneficial. This will be shown through workshops, kiosks, interpretive walks and a menagerie of other proposed ideas.
Access: Yes
Literary Rights: On
Major: Forestry
Year: 2015
File Attachments: Capstone_LIB_Upload.docx
Authors: Jeffrey Bigelow, Raymond Desilva, William Lehning, Llewellyn Palmer, Bennett Lohmeyer, Corey Bulson

Downtown Saranac Lake Urban Forest Management Plan

Thu, 05/07/2015 - 16:47
Abstract: Trees and green spaces are important resources to any community. They are public spaces which provide havens of relaxation, play, and mental and physical stimulation. Trees and green spaces have been proven to have a positive impact on the mental and physical wellbeing of area residents. However, the care of these trees and green spaces is often overlooked or not planned for, leading to human/nature conflicts at a fine scale (local level). This is where arborists enter; arborists are individuals trained in the art of caring for trees, and are often involved in every stage of a tree’s life cycle, from planting to removal. But arborists are also teachers, acting as the intermediary between urban trees and the public and providing education to the people. The village of Saranac Lake, New York, is no different. The results of the data collected on Saranac Lake’s downtown street trees and parks were analyzed and compiled into a comprehensive urban tree management plan. A total of 236 trees and shrubs were inventoried and assessed for their health, overall condition, and pruning needs. Also included in the urban tree management plan are observations on the current state of the urban forest, recommendations for the mitigation and correction of any observable problems, and prevention and treatment courses of action for any future insect pests.
Access: Yes
Literary Rights: On
Major: Forestry, Parks, Recreation and Facilities Management
Year: 2015
Authors: Michael O'Sullivan, Danielle Rageotte