*Established in Michigan waters*
PROHIBITED IN MICHIGAN
- Small – up to 11 cm.
- Mottled brown coloration with small scales
- Conjoined pectoral fins, 2 dorsal fins
- Tube-shaped protuberance extending from each anterior nostril
- Lines on first dorsal fin (no spot like round goby)
Illustration by Joseph R. Tomelleri, Ontario's Invading Species Program
Habitat: Slightly brackish to freshwater habitats are preferred.
Diet: Tubenose goby eat primarily benthic invertebrates such as amphipods.
Native Range: Black, Caspian, and Aral Seas, the Sea of Azov and rivers in northern Aegean
U.S. Distribution: They have been introduced to the Great Lakes basin and inhabit Lakes Superior, Erie, Huron, and are abundance in Lake St. Clair and the St. Clair River.
Local Concern: Dietary requirements put this species in strong competition with native darter populations in the Great Lakes.
Means of Introduction: It is believed that tubenose gobies made their way to the Great Lakes basin via ballast water introduction.
Native look-alikes and how you can tell them apart from tubenose goby:
- Spoonhead Sculpin: pelvic fins not fused, all fins lightly speckled except for clear pelvic fins, scaleless body
- Slimy Sculpin: pelvic fins not fused, scaleless body
- Mottled Sculpin: pelvic fins not fused, dark spots all over first dorsal fin, scaleless body
- Deepwater Sculpin: pelvic fins not fused, scaleless body