Body features
The Goby is this long
4-10 Inches long
Round Gobies love rocky areas at the bottom of lakes and rivers, especially in these famous North American lakes
The great lakes
This fish species loves eating zebra and quagga mussels, which are both invasive species with tough shells
Round Gobies
True or false, Round Gobies are non invasive species
False- Round Gobies are invasive species
True or false: Round gobies can actually help some larger fish species by becoming a new food source.
True — fish like smallmouth bass and lake trout eat round gobies.
These round body features sit high on the Goby’s head, helping it spot food and predators
It's eyes
True or false, These aggressive little fish often take over habitats and push out native species.
True
This powerful sense helps round gobies locate prey in dark or muddy waters by feeling vibrations.
Their sense of touch (or ability to detect vibrations)
Male round gobies guard these under rocks until they hatch.
Eggs
Round gobies often out-compete native fish for food and space. They can do this so well because of this type of behavior
They are aggressive and eat a wide variety of foods, letting them outcompete native species.
The Goby's head is this shape
A Round head, that's how it got its name
Round gobies eat just about anything, but they especially like this hard-shelled food that lives on rocks.
Mussles
Even though they’re small, round gobies can harm other fish by eating these before they hatch.
Fish eggs
This Great Lake was one of the first in North America to be invaded by round gobies in the 1990s, what lake is it?
Lake Erie
This happens to native fish when round Gobies take over their homes and food
The native fish populations go down.
The Goby has this many fins
It has 4 fins
Round gobies first invaded the Great Lakes after traveling in this part of cargo ships.
Ballast water
The round goby is originally from this part of the world before invading North America.
Eastern Europe (the Black and Caspian Seas)
Round gobies use this body part like a suction cup to stick to rocks and the bottom of lakes.
Pelvic fin
This is how the round Goby's change the food chain in the Great Lakes
They eat small creatures and mussels, then become food for bigger fish, which changes who eats what in the ecosystem.
The round Goby is this color (Trick Question)
Round Gobies are camo
This term describes how round gobies stay close to the bottom instead of swimming in open water.
Bottom dwelling
Round Gobies can survive in this type of water that is described as poor water conditions because they can handle both fresh and slightly salty water
Brackish water
When competing for food and space, round gobies often chase away this type of fish that looks similar to them.
Sculpins
By eating zebra and quagga mussels, round gobies accidentally pass this dangerous substance up the food chain
Toxins or contaminants, like PCBs (polychlorinated biphenyls).