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Effects of Physical and Chemical Stressors on Survival of the Resting Egg Stage of Bythotrephes longimanus

The spiny waterflea (Bythotrephes longimanus) is a voracious  predatory zooplankton that is an aquatic invasive species in the  Great Lakes, including Lake Superior.  Current control efforts for  this pest focus mainly on the adult life stage, even though the  resting egg stage is more likely to be accidentally  dispersed by  recreational boaters on their equipment.  Resting eggs might be  viewed as "super eggs."  They have a hardened outer shell and are  designed to withstand harsh environmental conditions.  They can  hatch months to years after incubating in lake sediments.   Researchers plan to conduct lab experiments that will simulate  different methods (extreme temperatures, drying, chlorine, and salt)  boaters could use to kill any resting eggs on their equipment.  Lake  managers and policy specialists will find the results useful in  containing the spread of this invasive species.

Status
In progress
Type
Project
Start Date
End Date
Researchers
Donn BranstratorPrincipal Investigator
Associated with 4 projects
Lyle ShannonResearcher
Associated with 1 projects
Agencies
Minnesota Sea Grant College Program $ 54,867.00USDEstimates

Funding 30 projects for a total of $2,568,917.00
Scope of Study
Field Investigation
Laboratory Investigation
Scale of Phenomena
Organism
Population
Impact of Pollutants
Exotic Species
Lake Basin Connecting Channels
Lake Superior
State Province
Minnesota
Biology And Life History
Environmental Requirements / Tolerance
Control And Mitigation
Chemical Measures
Prevention and Introduction
Determination of Preventive
Annex Numbers
Research & Development
Annex 17
Control technologies for treatment of municipal and industrial effluents/emissions
Impact of water quality and AIS on fish and wildlife populations and habitats
General
Aquatic Nuisance Species
Annex
  • Annex Numbers
    Annex Numbers
    Research & Development
  • Annex 17
    Annex 17
    Control technologies for treatment of municipal and industrial effluents/emissions
    Impact of water quality and AIS on fish and wildlife populations and habitats

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Great Lakes - St. Lawrence Region.