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Round Goby
Common

Round Goby

Neogobius melanostomus

The Round Goby is a small, invasive bottom-dwelling fish originally from the Black and Caspian Sea regions. It has distinctive large eyes, a single fused pelvic fin, and typically displays mottled brown coloration.

The record

Round Goby at a glance

Scientific name
Neogobius melanostomus
Typical size
3-6 inches, under 1 lb
Water
Freshwater
Habitat
Freshwater
Rarity in the Fishdex™
Common
Where it lives

Habitat

Round Gobies inhabit rocky and sandy bottoms in the Great Lakes and connecting waterways, where they were introduced via ballast water. They are not typically targeted by anglers but are often caught incidentally and are considered a nuisance species that competes with native fish.

Catch one and it is yours

Log a round goby through the Cobia Camera and this entry fills in with your photo, your personal best, and the exact conditions on the day. The app also carries the slot and season rules for wherever you are standing.

How the Fishdex™ works
Questions

Round Goby questions people ask

Round Goby is Neogobius melanostomus.

A typical round goby runs 3-6 inches, under 1 lb. Cobia records the length and weight of every round goby you log and keeps your personal best on its Fishdex entry.

Round Gobies inhabit rocky and sandy bottoms in the Great Lakes and connecting waterways, where they were introduced via ballast water. They are not typically targeted by anglers but are often caught incidentally and are considered a nuisance species that competes with native fish. It is a fresh water species, filed under freshwater in the Fishdex.

Yes. Log one through the Cobia Camera and this entry fills in with your own photo, your personal best, and the conditions on the day you caught it. The app also carries the slot limits and season dates for wherever you are standing. It is free.

Free on iPhone

Tomorrow morning starts tonight

Set your home water, pick a drive radius, and wake up to a plan.

Download Cobia on the App Store Android coming soon

iPhone, iOS 17 or later. Setup takes about a minute.