FishDatabase

Beyond native waters

Introduced fish in US waters

356 species reached United States waters from somewhere else, or were moved inside the country to water they did not hold. 72 of them the USGS calls exotic — from outside North America.

Two sources agree on this list: the ITIS jurisdiction origin, which marks a species introduced in a US area, and the USGS Nonindigenous Aquatic Species database. A species on either list is here.

Range

Where introduced fish are recorded

How many introduced species are recorded in each state.
0
170
How many introduced species are recorded in each state.

Most recorded

The most widely observed

Bluegill49 states
Lepomis macrochirusCentrarchidaeNative and introducedFresh
Sargo2 states
Anisotremus davidsoniiHaemulidaeNative and introducedSalt
Chinook Salmon18 states
Oncorhynchus tshawytschaSalmonidaeNative and introducedFreshSaltBrackish
Rainbow Trout42 states
Oncorhynchus mykissSalmonidaeNative and introducedFreshSaltBrackish
Largemouth Bass48 states
Micropterus salmoidesCentrarchidaeNative and introducedFresh
Brown Trout41 states
Salmo truttaSalmonidaeIntroducedFreshSaltBrackish
Blue Catfish31 states
Ictalurus furcatusIctaluridaeNative and introducedFreshBrackish
Striped Bass39 states
Morone saxatilisMoronidaeNative and introducedFreshSaltBrackish
Common Carp44 states
Cyprinus carpioCyprinidaeIntroducedFreshBrackish
American Gizzard Shad41 states
Dorosoma cepedianumClupeidaeNative and introducedFreshSaltBrackish
Alewife29 states
Alosa pseudoharengusClupeidaeNative and introducedFreshSaltBrackish
Yellow Perch47 states
Perca flavescensPercidaeNative and introducedFreshBrackish

Species

All 356 species, A–Z

A

B

C

D

E

F

G

H

I

J

K

L

M

N

O

P

Q

R

S

T

U

V

W

Y

Z