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Trophodynamic food web models to quantify the effects of Hemimysis anomola on Great Lakes food webs

Hemimysis anomola is an invertebrate invader that was first reported   in the Great Lakes basin in 2  6. Hemimysis are quickly spreading   through the basin, becoming most abundant in nearshore areas where   they are forecast to impact resident zooplankton (through competition   & predation) and fishes (changed prey base) (H1: Hemimysis quickly   become integrated into the Great Lakes food web). We will combine   field studies with modelling to quantify the effect of Hemimysis on   trophic transfer efficiency and bioaccumulation of critical   pollutants relative to food web structure (H2: Hemimysis are   contributing to continued disturbance by non-native species in Lake   Ontario by introducing another energy and contaminant pathway). Both   analyses will consider all dominant food web linkages from   zooplankton to predatory fish, sampling along a demonstrated gradient   of Hemimysis density. Our results will be broadly applicable to other   regions where Hemimysis has or will invade, to assist managers and   researchers in understanding the potential impact on energy and   contaminant pathways. Our work will build on existing efforts by OMNR   and DFO to quantify Hemimysis density in different habitats in Lake   Ontario, USGS led initiatives to characterise the basic ecology of   Hemimysis in the Great Lakes, and a Queen?s/ OMNR partnership to   support a post-doc on Great Lakes modelling.

Status
In progress
Type
Project
Start Date
End Date
Researchers
Tim JohnsonPrincipal Investigator
Associated with 1 projects
Shelley ArnottResearcher
Associated with 1 projects
Linda CampbellResearcher
Associated with 1 projects
Agencies
Queen's University $ 174,600.00CADEstimates

Funding 2 projects for a total of $174,600.00
Ontario Ministry of Natural Resources $ 151,000.00CADEstimates

Funding 5 projects for a total of $165,802.00
Ontario Ministry of Environment $ 50,000.00CADEstimates

Funding 9 projects for a total of $50,000.00
University of Windsor $ 49,700.00CADEstimates

Funding 2 projects for a total of $49,700.00
Fisheries and Oceans Canada $ 45,500.00CADEstimates

Funding 4 projects for a total of $45,500.00
Scope of Study
Field Investigation
Modelling
Scale of Phenomena
Ecosystem
Population
Impact of Pollutants
Exotic Species
Lake Basin Connecting Channels
Lake Ontario
State Province
Ontario
Purpose of Project
Special Survey
Frequency
Monthly
Number of Sampling Entities
2-4
Data Availability
Geo-referenced
Region Being Monitored
Near and OpenShore Waters
Resource Being Monitored
Fisheries
Plankton / Microorganisms
Suspended Sediments
Beneficial Use Impairment Assessments
Degradation of Phytoplankton or Zooplankton Populations
Restrictions of Fish and Wildlife Consumption
Biology And Life History
Life History
Ecosystem Effects
Food Web Structure
Annex Numbers
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
General
Monitoring
Annex
  • Annex Numbers
    Annex Numbers
    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

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