Invasive Fish Database
The internet's most comprehensive resource for tracking invasive species.
Oscar
Native to the Amazon basin, this popular aquarium fish has been widely released and is now heavily established in South Florida's canals, where it competes aggressively with native sunfish.
Walking Catfish
Infamous for its ability to "walk" across land using its pectoral fins during rainstorms. It is highly invasive in Florida, dominating small ponds and wetlands.
Round Goby
A bottom-dwelling native to the Black and Caspian Seas. Introduced to the Great Lakes via ballast water, it aggressively outcompetes native fish and eats their eggs.
Northern Snakehead
An aggressive, air-breathing apex predator native to East Asia. Highly invasive in the mid-Atlantic US, its ability to survive out of water allows it to travel overland and pose a severe ecological threat.
Mayan Cichlid
Also known as the "Mexican Mojarra," this species is native to Central America but has exploded in population across South Florida's fresh and brackish waterways.
Lionfish
A marine invader native ``` ```html
Invasive Fish Database
The internet's most comprehensive resource for tracking invasive species.
Oscar
Native to the Amazon basin, this popular aquarium fish has been widely released and is now heavily established in South Florida's canals, where it competes aggressively with native sunfish.
Walking Catfish
Infamous for its ability to "walk" across land using its pectoral fins during rainstorms. It is highly invasive in Florida, dominating small ponds and wetlands.
Round Goby
A bottom-dwelling native to the Black and Caspian Seas. Introduced to the Great Lakes via ballast water, it aggressively outcompetes native fish and eats their eggs.
Northern Snakehead
An aggressive, air-breathing apex predator native to East Asia. Highly invasive in the mid-Atlantic US, its ability to survive out of water allows it to travel overland and pose a severe ecological threat.
Mayan Cichlid
Also known as the "Mexican Mojarra," this species is native to Central America but has exploded in population across South Florida's fresh and brackish waterways.
Lionfish
A marine invader native ```