Round goby could invade Lake Winnebago The Post-Crescent (2/9) In Wisconsin, round gobies could have a strong impact on Lake Winnebago, the Fox River, and the Wolf River, according to a University of Wisconsin aquatic invasive species expert.
Round goby a good-news, bad-news Great Lakes invader Great Lakes Echo (1/27) The round goby is one of the nastiest aliens in the Great Lakes, with what the Michigan Department of Natural Resources (DNR) calls its “voracious appetite and an aggressive nature which allows them to dominate over native species.”
An invader in our waters: The Round Goby ins in Little Lake Peterborough Examiner (1/14) Unbeknownst to most, a small but aggressive invader is lurking in the tranquil waters of Little Lake, in Ont. For the time being, however, it seems to have met a roadblock in its attempt to expand and plunder waters to the north.
Some ostracods survive goby guts Great Lakes Echo (5/18) Ostracods, also known as seed shrimp, can survive getting eaten by the round goby, an invasive fish that comes from central Eurasia, according to a recent study.
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