Round Goby are currently found in the Credit River Watershed in two ponds in Hillsburgh and in the lower portion of the Credit River south of the Mississauga Golf and Country Club into Lake Ontario. Queen's Printer for Ontario. Thanks to the continued growth of a foreign forage species â the round goby â the Elites should find the St. Lawrence smallmouth healthier than ever. Ontario, Canada. We have encountered this species many times during expeditions in the Great Lakes: exploring shipwrecks in Lake Huron, diving in the waters of Lake Ontario, holding search and rescue demos in Lake Erie, and venturing through the surf on Lake Michigan. The round goby is an invasive species known to exist in all five Great Lakes. The round goby is a small, bottom-dwelling invasive fish. Presentations showcased the most recent research on round goby â¦ Ive just fished a couple of tournaments out on Lake Ontario & Lake Erie and I have to say Im so impressed with the size of these Smallmouth Bass out there. The double-crested cormorant is eating more round gobies and fewer sport fish, a recent study says. Round Goby appeared to make up approximately 75% of Burbot (Lota lota) and Smallmouth Bass diet in Lake Erie and 36% of Lake Trout diet in Lake Ontario, indicating that a new energy source may be travelling up the food chain (Dietrich et al. Ontario Ministry of Natural Resources. Native to the Black and Caspian seas in eastern Europe, it was first found in North America in 1990 in the St. Clair River north of Windsor, Ontario. 2012. If the elements donât kill you, thereâs always the next power-hungry leader, plague, or toothy beast waiting in line to give it their best shot. 2005). Round Goby also supplements the diet of Yellow Perch (Weber et al. It has spread to rivers and streams that are connected to them. Round goby represented 86% of the stomach contents of smallmouth bass and 29% of largemouth bass, confirming that round goby are an important food source for piscivorous fish in Lake Ontario, and likely the other Laurentian Great lakes. Native to the Black and Caspian seas in eastern Europe, it was first found in North America in 1990 in the St. Clair River north of Windsor, Ontario. The Round Goby prefers rocky, shallow areas but is able to flourish in a wide range of habitat types and can also tolerate poor water quality 1. At the 57 th Annual Meeting of the International Association of Great Lakes Research (IAGLR; Hamilton, Ontario 2014), a session was held specific to round goby with the intent to increase awareness and understanding of ongoing ecological impacts of this AIS in the Great Lakes and in large-bodied European aquatic ecosystems. The Ontario provincial government is combatting the spread of the species, by prohibiting the possession of live round goby and the use of the species as baitfish. Researchers believe the fish was brought to North America in â¦ âThe round goby [â¦] has spread to all the Great Lakes and several of their tributaries, [â¦] into an inland river in Ontario (Running Creek; E. Holm, Royal Ontario Museum, personal communication) [â¦]â From Kornis et al. 2011). 2006, Johnson et al. The seemingly harmless Goby fish . banned the possession of live round goby and the use of round goby as a baitfish. Round Goby Fact Sheet. Species: Round Goby (Neogobius melanostomus) Location: Toronto, Ontario, Canada Date: July 16, 2018. From 2003 to 2007, researchers estimate that the cormorant ate 13 million fewer yellow perch and 600,000 fewer smallmouth bass in two large Lake Ontario cormorant colonies. Round Goby. Round Goby The round goby is a small, bottom-dwelling invasive fish. Queen's Printer for Ontario. A pretty obvious reason for the rapid growth of these fish has been the introduction of round gobies. 2010. (2012): âRelatively new populations have been found in â¦ Field Guide to Aquatic Invasive Species, 3rd Edition. Ontario Ministry of Natural Resources. The north is a tough place.