| Impact ID | 3588 |
| Impact Type | Competition |
| Study Type | Anecdotal |
| Study Location | Field |
| Impact Description | There also is potential for competition between tubenose gobies and johnny darters Etheostoma nigrum for spawning sites. Both species spawn on the underside of fixed objects such as rocks (Balon 1975; Jude et al. 1995). Tubenose gobies are similar in total length to johnny darters, but johnny darters are more slender and smaller in overall body size, which may provide a competitive advantage to tubenose gobies. Habitat overlap for these two species is possible in nearshore areas of Lake Erie near river outflows where rainbow darters occur (e.g., in several tributaries to Lake Erie). |
| Reference | 19664 |
| Cost | |
| Location | |