{"id":{"repo_id":"uoit","oai_identifier":"oai:ontariotechu.scholaris.ca:10155/1217"},"canonical_url":"https://search.dev.ndltd.org/etd/uoit/oai:ontariotechu.scholaris.ca:10155/1217","repository":{"repo_id":"uoit","name":"Ontario Institute of Technology","base_url":"https://ontariotechu.scholaris.ca/server/oai/request"},"display":{"title":"Understanding the role of aquatic plants in stormwater management pond performance in Oshawa, Ontario, Canada","abstract":"Stormwater Management Ponds (SMPs) are engineered to receive, store, and treat stormwater runoff before it enters receiving waters in urbanizing landscapes. While these systems are not considered natural, they are typically colonized by aquatic plants. Although submergent and emergent vegetation is common in SMPs, not much is known about their potential impacts on SMP performance. The aim of my thesis project was to investigate the effect of aquatic plants on the water treatment capacity of 15 SMPs in Oshawa, Ontario, Canada, over two years (2018-2019). I determined that overall, SMPs serve as sinks for certain water quality parameters including chloride and nitrogen, while being a net source of phosphorus to tributaries. The effect of plants on SMP performance was mixed. Increasing submergent plant biomass was associated with decreasing nitrogen concentrations at outflow locations (p = 0.002, cor = -0.316). Emergent vegetation had no significant impact on stormwater treatment overall, but the invasive species, P. australis was associated with decreasing outflow nitrogen concentrations. Overall, I determined that pond characteristics, including pond size, age, and drainage area are significant drivers of established plant profiles.","abstract_html":"Stormwater Management Ponds (SMPs) are engineered to receive, store, and treat stormwater runoff before it enters receiving waters in urbanizing landscapes. While these systems are not considered natural, they are typically colonized by aquatic plants. Although submergent and emergent vegetation is common in SMPs, not much is known about their potential impacts on SMP performance. The aim of my thesis project was to investigate the effect of aquatic plants on the water treatment capacity of 15 SMPs in Oshawa, Ontario, Canada, over two years (2018-2019). I determined that overall, SMPs serve as sinks for certain water quality parameters including chloride and nitrogen, while being a net source of phosphorus to tributaries. The effect of plants on SMP performance was mixed. Increasing submergent plant biomass was associated with decreasing nitrogen concentrations at outflow locations (p = 0.002, cor = -0.316). Emergent vegetation had no significant impact on stormwater treatment overall, but the invasive species, P. australis was associated with decreasing outflow nitrogen concentrations. Overall, I determined that pond characteristics, including pond size, age, and drainage area are significant drivers of established plant profiles.","abstract_has_math":false,"creators":["Johnston, Alexandra"],"institution":"University of Ontario Institute of Technology","degree_name":"Master of Science (MSc)","degree_level":null,"degree_discipline":"Applied Bioscience","degree_department":null,"school":null,"contributors":[],"advisors":["Kirkwood, Andrea"],"committee_chairs":[],"committee_members":[],"year":2020,"date_issued":"2020-05-01","date_published":"2020-05-01","updated_at":"2026-07-24T05:35:39Z","subjects":["Urban ecology","Stormwater management ponds","Water quality","Aquatic vegetation"],"languages":["en"],"rights":[],"rights_urls":[],"identifier_entries":[]},"links":{"outbound_url":"https://hdl.handle.net/10155/1217","outbound_label":"Handle","outbound_source":"dc:identifier.uri"},"metadata_groups":[{"id":"people","label":"People","entries":[{"key":"dc:contributor.advisor","label":"Advisor","values":["Kirkwood, Andrea"]},{"key":"dc:creator","label":"Author","values":["Johnston, Alexandra"]}]},{"id":"academic_context","label":"Academic Context","entries":[{"key":"dc:date.accessioned","label":"Dc Date Accessioned","values":["2021-02-19T21:41:19Z","2022-03-29T17:26:05Z"]},{"key":"dc:date.available","label":"Dc Date Available","values":["2021-02-19T21:41:19Z","2022-03-29T17:26:05Z"]},{"key":"dc:date.issued","label":"Date","values":["2020-05-01"]},{"key":"dc:type","label":"Dc Type","values":["Thesis"]},{"key":"thesis:degree_discipline","label":"Discipline","values":["Applied Bioscience"]},{"key":"thesis:degree_name","label":"Degree Name","values":["Master of Science (MSc)"]},{"key":"thesis:institution_name","label":"Thesis Institution Name","values":["University of Ontario Institute of Technology"]}]},{"id":"subjects_keywords","label":"Subjects and Keywords","entries":[{"key":"dc:subject","label":"Dc Subject","values":["Urban ecology","Stormwater management ponds","Water quality","Aquatic vegetation"]}]},{"id":"language_rights","label":"Language and Rights","entries":[{"key":"dc:language.iso","label":"Language (ISO)","values":["en"]}]},{"id":"identifiers","label":"Identifiers","entries":[{"key":"dc:identifier.uri","label":"Identifier URI","values":["https://hdl.handle.net/10155/1217"]}]},{"id":"additional","label":"Additional Metadata","entries":[{"key":"dc:description.abstract","label":"Abstract","values":["Stormwater Management Ponds (SMPs) are engineered to receive, store, and treat stormwater runoff before it enters receiving waters in urbanizing landscapes. While these systems are not considered natural, they are typically colonized by aquatic plants. Although submergent and emergent vegetation is common in SMPs, not much is known about their potential impacts on SMP performance. The aim of my thesis project was to investigate the effect of aquatic plants on the water treatment capacity of 15 SMPs in Oshawa, Ontario, Canada, over two years (2018-2019). I determined that overall, SMPs serve as sinks for certain water quality parameters including chloride and nitrogen, while being a net source of phosphorus to tributaries. The effect of plants on SMP performance was mixed. Increasing submergent plant biomass was associated with decreasing nitrogen concentrations at outflow locations (p = 0.002, cor = -0.316). Emergent vegetation had no significant impact on stormwater treatment overall, but the invasive species, P. australis was associated with decreasing outflow nitrogen concentrations. Overall, I determined that pond characteristics, including pond size, age, and drainage area are significant drivers of established plant profiles."]},{"key":"dc:title","label":"Title","values":["Understanding the role of aquatic plants in stormwater management pond performance in Oshawa, Ontario, Canada"]}]}],"canonical_facts":{"dc:contributor.advisor":["Kirkwood, Andrea"],"dc:creator":["Johnston, Alexandra"],"dc:date.accessioned":["2021-02-19T21:41:19Z","2022-03-29T17:26:05Z"],"dc:date.available":["2021-02-19T21:41:19Z","2022-03-29T17:26:05Z"],"dc:date.issued":["2020-05-01"],"dc:description.abstract":["Stormwater Management Ponds (SMPs) are engineered to receive, store, and treat stormwater runoff before it enters receiving waters in urbanizing landscapes. While these systems are not considered natural, they are typically colonized by aquatic plants. Although submergent and emergent vegetation is common in SMPs, not much is known about their potential impacts on SMP performance. The aim of my thesis project was to investigate the effect of aquatic plants on the water treatment capacity of 15 SMPs in Oshawa, Ontario, Canada, over two years (2018-2019). I determined that overall, SMPs serve as sinks for certain water quality parameters including chloride and nitrogen, while being a net source of phosphorus to tributaries. The effect of plants on SMP performance was mixed. Increasing submergent plant biomass was associated with decreasing nitrogen concentrations at outflow locations (p = 0.002, cor = -0.316). Emergent vegetation had no significant impact on stormwater treatment overall, but the invasive species, P. australis was associated with decreasing outflow nitrogen concentrations. Overall, I determined that pond characteristics, including pond size, age, and drainage area are significant drivers of established plant profiles."],"dc:identifier.uri":["https://hdl.handle.net/10155/1217"],"dc:language.iso":["en"],"dc:subject":["Urban ecology","Stormwater management ponds","Water quality","Aquatic vegetation"],"dc:title":["Understanding the role of aquatic plants in stormwater management pond performance in Oshawa, Ontario, Canada"],"dc:type":["Thesis"],"thesis:degree_discipline":["Applied Bioscience"],"thesis:degree_name":["Master of Science (MSc)"],"thesis:institution_name":["University of Ontario Institute of Technology"]},"updated_at":"2026-07-24T05:35:39Z"}