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Lake Ontario Nearshore Nutrient Transport Study (LONNS)

The coastal zones of Lake Ontario are experiencing elevated levels   of phosphorus suspended solids, turbidity, nitrate, dreissenid   mussels, Cladophora, and cyanobacteria and frequent beach closings   or postings on both the American and Canadian side of the lake. A   change in the nearshore to offshore movement of materials could   explain these observations. A key question is: to what extent has   the retention (and accumulation) of nutrients and pollutants   increased in the nearshore and conversely, as a result, has the   supply to the offshore declined? This question is particularly   relevant to phosphorus since much of the total phosphorus input to   the lake is in particulate form, originates from a watershed, and is   susceptible to being retained in the nearshore. There is substantial   potential for dreissenid mussels to enhance benthic algal growth by   increasing habitat availability through greater water clarity and by   enhancing nutrient supply through excretion or indirectly through   the accumulation of particulate material in mussel beds. More   simply, the Dreissena and Cladophora beds could be acting as   biological filters removing and retaining phosphorus in the coastal   zone and thereby reducing the amount transported to the offshore.     Researchers propose research in the coastal zone of Lake Ontario   that will provide information to evaluate the working hypothesis   that nutrients and particulate matter loaded to the coastal zone are   being trapped/sequestered in the coastal zone by dreissenid mussels   and Cladophora.    (nutrient); (nutrients); (nutrient loading); (nutrient transport);   (eutrophication); (algal bloom); (algal blooms); (Cladophora);   (dreissenids); (dreissenid mussel); (dreissenid mussels); (Lake   Ontario); (beach closure); (beach closures); (beach closings);   (beach closing); (turbidity); (pathogen); (pathogen transport);   (phosphorous); (nearshore); (offshore); (AIS); (aquatic invasive   species); (ANS); (aquatic nuisance species)

Status
In progress
Type
Project
Start Date
End Date
Researchers
Joseph MakarewiczPrincipal Investigator
Associated with 3 projects
Agencies

Funding 2 projects for a total of $100,000.00
Great Lakes Protection Fund $ 0.00USDEstimates

Funding 4 projects for a total of $1,000,540.00
Scope of Study
Field Investigation
Scale of Phenomena
Biochemical
Landscape
Organism
Physical/Chemical
Impact of Pollutants
Exotic Species
Nutrients, Including Phosphorus
Land Use and Habitat
Shoreline
Lake Basin Connecting Channels
Lake Ontario
State Province
New York
Control And Mitigation
Chemical Measures
Ecosystem Effects
Nutrient / Contaminant Cycles
Annex Numbers
Control of Phosphorus
Remedial Action Plans and Lakewide Management Plans
Research & Development
Annex 17
Impact of water quality and AIS on fish and wildlife populations and habitats
Mass transfer of pollutants between GL Basin Ecosystem components
Physical and transformational processes affecting delivery of pollutants
Pollution exchange between AOCs and open lakes
General
Annex
  • Annex Numbers
    Annex Numbers
    Control of Phosphorus
    Remedial Action Plans and Lakewide Management Plans
    Research & Development
  • Annex 17
    Annex 17
    Impact of water quality and AIS on fish and wildlife populations and habitats
    Mass transfer of pollutants between GL Basin Ecosystem components
    Physical and transformational processes affecting delivery of pollutants
    Pollution exchange between AOCs and open lakes

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