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Cercopagis Invasion of Lake Michigan: Predictable Responses or 'Invasional Meltdown' of the Planktonic Food Web?

Like the spiny waterflea Bythotrephes cederstroemii before it, the   invasion of Lake Michigan by the fishhook waterflea Cercopagis   pengoi is of great concern because it is a predatory zooplankton   that competes with larval yellow perch and alewives for food. This   new invasion offers an important opportunity to test the   predictability of how Great Lakes ecosystems respond to repeated   invasions by ecologically similar planktonic species, and this new  project will examine Lake Michigan's ability to absorb this new   invader by documenting the dynamics of competing predatory   zooplankton populations. This work addresses a cross-cutting AIS and   Fisheries priority of evaluating the effects of invasive species on   Great Lakes food webs as well as an Ecosystems and Habitats priority   of evaluating the importance of invertebrate species to planktonic   food webs.    (Lake Michigan); (fishhook waterflea); (Cercopagis pengoi); (AIS);   (aquatic invasive species); (ANS); (aquatic nuisance species);   (zooplankton); (plankton); (invertebrate); (invertebrates)

In progress
Start Date
End Date
Scope of Study
Field Investigation
Impact of Pollutants
Exotic Species
Lake Basin Connecting Channels
Lake Michigan
State Province
Resource Being Monitored
Plankton / Microorganisms
Beneficial Use Impairment Assessments
Degradation of Phytoplankton or Zooplankton Populations
Loss of Fish and Wildlife Habitat
Ecosystem Effects
Food Web Structure
Annex Numbers
Research & Development
Annex 17
Impact of water quality and AIS on fish and wildlife populations and habitats
  • Annex Numbers
    Annex Numbers
    Research & Development
  • Annex 17
    Annex 17
    Impact of water quality and AIS on fish and wildlife populations and habitats

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