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Assessing Barriers to Round Goby Invasion of Great Lake Tributary Streams

The round goby has had a significant impact in the Great Lakes since  its invasion less than 15 years ago and it is now expanding into  tributary streams. The impacts to stream communities and ecosystem  functions will likely be greater than those documented within the  Lakes. Little is known about the ability of this fish to by-pass  barriers (e.g., waterfalls, fish ladders, lowhead dams), preventing  accurate assessment of streams at risk to invasion or whether  proposed fish by-pass structures might facilitate its upstream  invasion. This project aims to document the physical limits and  necessary substrate and flow conditions allowing round gobies to pass  existing structures in Great Lake tributary streams. This will help  in predicting the rate of goby expansion and the most likely  tributaries most vulnerable.

In progress
Start Date
End Date
Christopher M. PennutoPrincipal Investigator
Associated with 1 projects
New York Sea Grant $ 89,600.00USDEstimates

Funding 14 projects for a total of $1,043,408.00
Scope of Study
Laboratory Investigation
Scale of Phenomena
Impact of Pollutants
Exotic Species
Resource Management
State Province
New York
Biology And Life History
Environmental Requirements / Tolerance
Spread of Established ANS Populations
Rate of Spread
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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