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Goby in the Great Lakes Region What's New | Overview | General Resources | Related Resources Select a species: Crustaceans: Cercopagis pengoi | Rusty Crayfish | Spiny Water Flea Fish: Common Carp | Goby | Ruffe | Sea Lamprey | White Perch Mollusks: Zebra Mussel Plants: Curly-leaf Pondweed | Eurasian Watermilfoil | Flowering Rush | Purple Loosestrife [Invasive species home page] 
What's New Underwater cannon may help protect Great Lakes Wall Street Journal (12/30) Biologists plan to use a seismic gun to chase invasive round gobies from several Lake Michigan reefs. Removing Newburg dam would let river flow free Milwaukee Journal Sentinel (12/3) Ozaukee County, Wisc., has offered to spend up to $650,000 in federal grant money to remove the dam on the Milwaukee River in 2012 and restore the natural riverbed. Push to keep invasives out driving force behind ballast water measures Minnesota Public Radio (11/21) The quest to stop invasive species from reaching the Great Lakes in the ballast water of ocean-going ships is moving forward in Congress and at the state level. Feds say Lake Erie watersnake no longer threatened Wall Street Journal (8/15) A nonpoisonous snake that slithers among a patchwork of islands in western Lake Erie has been removed from the federal government's list of endangered and threatened species following a successful recovery campaign, officials said Monday. Invasive species: should we learn to love them? CBC News (8/10) After the first spotting in Lake Erie in 1990, experts predicted the round goby would cause harm to native Great Lakes species. Two decades later, it appears instead to have brought some unexpected benefits. Cleaning up the Great Lakes The Voice (7/30) New standards governing the cleaning of ballast water in ocean-going freighters, about to be adopted by the U.S. Coast Guard, should help prevent release of non-native species into the Great Lakes and other threatened U.S. waters.
Overview 
The goby is a bottom-dwelling fish that has great potential for causing impacts on Great Lakes fisheries. Originally the round goby and the tubenose goby were introduced into the St. Claire River in 1990, probably via contaminated ballast water of transoceanic ships.
Round goby are thriving in the Great Lakes Basin because they are aggressive, voracious feeders which can forage in total darkness. The round goby takes over prime spawning sites traditionally used by native species, competing with native fish for habitat and changing the balance of the ecosystem. The round goby is already causing problems for other bottom-dwelling Great Lakes native fish like mottled sculpin, logperch and darters. Goby can also survive in degraded water conditions, and spawn more often and over a longer period than native fish. Unfortunately, they have shown a rapid range of expansion through the Great Lakes. Many of the characteristics of the round goby invasion parallel that of the Eurasian ruffe. Photo Credit: David Jude, Center for Great Lakes Aquatic Sciences
General Resources Distribution map of Round Goby U.S. Geological Survey (USGS) Distribution map of Tubenose Goby U.S. Geological Survey (USGS) Factsheet: Round Gobies Ohio Sea Grant College Program Neogobius melanostomus (Round Goby) U.S. Geological Survey (USGS) Nonindigenous occurrences, means of introduction, and impact of the Round Goby. Proterorhinus marmoratus (Tubenose Goby) U.S. Geological Survey (USGS) Nonindigenous occurrences, means of introduction, and impact of the Tubenose Goby. Round Goby (Neogobius melanostomus) Sea Grant Nonindigenous Species Site (SGNIS) Includes scientifically reviewed articles as well as images from Sea Grant researchers. Round Goby Fact Sheet U.S. Geological Survey (USGS), Great Lakes Science Center Outlines potential impacts of goby populations in the Great Lakes, current research and barriers being tested. Round Goby ID Card Minnesota Sea Grant Program Informative fact sheet on the round goby, 1998. Round Goby Invades Lake Michigan Illinois Natural History Survey Article describes the expansion of the round goby range into Lake Michigan. INHS Reports November-December 1995.
Related Resources GLIN: Agencies and Organizations, Fauna GLIN: Fish and Fisheries in the Great Lakes Region
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