Date of Award
5-2016
Degree Type
Thesis
Degree Name
Master of Science in Environmental Science and Policy (ES&P)
Department
International Development, Community and Environment
Chief Instructor
Samuel Ratick
Second Reader
John Baker
Keywords
hydro-rake, management, pond, lake, plant, freshwater
Abstract
Hydro-raking is one management option to control non-native invasive and native nuisance plants in freshwater ponds and lakes in Massachusetts. The hydro-rake is a floating pontoon boat with paddlewheels and a long, giant rake that scoops plants from pond or lake bottoms. Analyzing eight case studies in Massachusetts where hydro-raking occurred, this thesis provides a comprehensive overview of when the process would be recommended or not. The results, displayed in a decision tree guide the reader through questions to test for suitability of the water body they manage. The water level needs to be between one and twelve feet, and the pond or lake requires shore access for the machinery. Plants recommended for hydro-raking in Massachusetts are rooted floating plants and emergent shoreline plants. Plants not recommended for removal through hydro-raking include species that spread through fragmentation. Organic debris and trash are also recommended for removal with the hydro-rake.
Recommended Citation
Desmarais, Danielle L., "HYDRO-RAKING AS A MANAGEMENT OPTION FOR AQUATIC NON-NATIVE INVASIVE AND NATIVE NUISANCE PLANTS IN FRESHWATER PONDS AND LAKES: CASE STUDIES IN MASSACHUSETTS" (2016). International Development, Community and Environment (IDCE). 38.
https://commons.clarku.edu/idce_masters_papers/38