Round Goby Research Paper

366 Words1 Page

Invasive species: Round Goby

Description: Frog like raised eyes
Black spot on dorsal fin
Dorsal fin may be tinged green
Body mostly slate gray, mottled with black to brown spots
Thick lips
Single scallop-shaped pelvic (bottom) fin

Habitat Map

The Round Goby have spread across all five the great lakes. In some areas, the fish have reached a density of more than 100 fish per square meter. It is native to the Black and Caspian seas in eastern Europe. They were first spotted in North America in 1990, in the St.Clair River. They are believed to have been brought here from ballast water of ships from Europe.

They are invasive because; they compete with native bottom dwelling fish for food. They threaten the several species in the Great Lakes Basin. The Round Goby have reduced the population of sport fish by eating their eggs and and young ones. Also by competing for food.Researchers believe that the Round Goby is also connected to the botulism type E outbreaks in the Great Lake's fish and fish …show more content…

It’s thought that the the bird was more widespread in Canada before the the clearing of the forest in the 1800s. The most recent population estimate counted for 20 to 30 pairs of birds, and the population is still at a low level, and shows no sign of rising.

The main reason that they are endangered is because of the continuing forest loss in Ontario. Residential and agriculture also has a negative effect on sensitive wildlife like the Acadian Flycatcher.

The Acadian Flycatcher is protected under the federal Migratory Birds Convention Act. The Acadian Flycatcher is also listed under Ontario's Endangered Species Act, 2007, which protects the species from being killed, harmed, or

Open Document