Freshwater Bass: Types, ID Marks and Eating Advice

Yes. In North America freshwater bass almost always means the black basses, the genus Micropterus: largemouth, smallmouth, spotted bass and their relatives. Wikipedia calls them the most popular game fish in North America.

The name is misleading in one way. Black basses belong to the sunfish family, Centrarchidae, together with bluegill and crappie, so they are not closely related to saltwater bass. Three other groups called bass also live in fresh water:

• Temperate basses: white bass live their whole lives in fresh water, and striped bass are sea-run fish that have been stocked into inland reservoirs
• Rock bass: another sunfish
• Peacock bass: South American cichlids, established in south Florida; see peacock bass

AFTCO's freshwater bass guide lists eight main black bass species. The marks that separate them:

• Largemouth bass: green with a dark, jagged stripe along the side; upper jaw reaches past the back of the eye; the two dorsal fins are almost separated by a deep notch. See largemouth bass.
• Smallmouth bass: light brown with vertical bars; upper jaw ends about under the middle of the eye; dorsal fins joined. See smallmouth bass.
• Spotted bass: green to olive with rows of small dark spots on the lower sides; dorsal fins connected. See spotted bass.
• Alabama bass: longer and leaner than a largemouth and nearly identical to a spotted bass; a tooth patch on the tongue helps separate them.
• Redeye bass: red eyes and a reddish tail; rarely over 3 lb.
• Guadalupe bass: lime to olive green, found only in central Texas rivers; about 12 inches and 1 lb.
• Shoal bass: dark olive with a distinct dark spot; Florida and Georgia rivers such as the Flint and Chattahoochee.
• Suwannee bass: bright blue on the cheeks and breast; rarely over 10 inches, in the Suwannee and Ochlockonee drainages.

The jaw test separates the two species most anglers catch. Close the fish's mouth and look at where the upper jaw ends relative to the eye.

Florida bass have been split from largemouth bass as a separate species. Florida FWC notes that the two are visually indistinguishable and are treated as one species for fishing regulations.

The split also moved the scientific names. Wikipedia reports that a 2022 study concluded the name Micropterus salmoides belongs to the Florida bass, and that the largemouth bass should be called Micropterus nigricans. Many older field guides and agency pages, including some we cite, still use M. salmoides for the largemouth, so expect both names for a while.

Florida's state record for the species is 17.27 lb (FWC).

They are different fish from different families that happen to share a name. Freshwater black basses are sunfish (Centrarchidae). The fish sold as sea bass come from other families: black sea bass is in the sea bass family Serranidae with the groupers, European seabass or branzino is a temperate bass, and Chilean sea bass is not a bass at all but the Patagonian toothfish (Wikipedia).

In practice, sea bass are commercial seafood, while the US Fish and Wildlife Service describes largemouth bass as one of the top recreational fish in the country. The eating advice differs too; see below and our bass fish page.

Freshwater bass are eaten, but health agencies advise eating them less often than panfish. The Minnesota DNR explains that bluegill accumulate few toxins because they feed low in the food chain; bass are predators higher up, and the guidelines for them are stricter.

Minnesota's statewide guidelines (Minnesota Department of Health, updated August 2026) show the difference:

• Bass: 1 serving a week for most adults; 1 serving a month for children under 15 and anyone pregnant or who may become pregnant
• Sunfish, bluegill and crappie: 4 servings a week for most adults; 1 a week for the sensitive group

Those numbers apply to Minnesota waters. Freshwater bass do not appear on the FDA's commercial fish list. For fish caught by family and friends, the FDA says to check local advisories, and if there is none, to eat only one serving that week and no other fish. Check your own state's fish consumption advisory for the lake you fished.

Many bass anglers release their fish anyway. If you do, our handling and release guide covers how to do it without harming the fish.

The largemouth is the giant of the group. The world record is shared: George Perry's 22 lb 4 oz fish from Montgomery Lake, Georgia, in 1932, and Manabu Kurita's 22 lb 5 oz fish from Lake Biwa, Japan, in 2009, both recognised by the IGFA according to Wikipedia. The US Fish and Wildlife Service gives a common length of 16 inches and a maximum age of 23 years.

The other species are smaller. AFTCO puts the Alabama bass record at 11 lb 4 oz and the shoal bass record at 8 lb 12 oz, while redeye, Guadalupe and Suwannee bass rarely reach 3 lb.

Research and drafting for this page were assisted by AI and checked line by line against the sources listed below. Every number names the organisation it comes from; where sources disagree we say so rather than pick one silently. Rules and advisories change, so treat the dates given here as the date we checked. If you find an error, tell us and we will correct it.

There are 14 recognised species of black bass, the genus Micropterus, according to Wikipedia's species list. Counting every fish called 'bass' gives no single number: Wikipedia's Bass article says the name is shared by many species across several families.

The eight species above are the ones AFTCO calls the main black basses. The full Micropterus list adds six more, four of them described only in 2013 (year described, from Wikipedia):

• Florida bass, M. salmoides (1802), now separate from the largemouth
• Neosho bass, M. velox (1940)
• Cahaba bass, M. cahabae (2013)
• Chattahoochee bass, M. chattahoochae (2013)
• Tallapoosa bass, M. tallapoosae (2013)
• Warrior bass, M. warriorensis (2013)

Wikipedia adds that a 15th species, the Choctaw bass, M. haiaka, has been proposed but is not yet widely accepted, and that the Altamaha bass and Bartram's bass are still undescribed and grouped with the redeye bass.

Other groups called bass, with examples:

• Temperate basses (family Moronidae): striped, white and yellow bass, and the European seabass or branzino (Wikipedia)
• Asian seabasses (genus Lateolabrax): Japanese seabass and blackfin seabass (Wikipedia)
• Pacific saltwater basses: spotted sand bass, calico bass and barred sand bass (Bad Angling)
• Hybrid striped bass: a hybrid that Texas Parks and Wildlife lists with its own ID marks

The temperate basses look alike, and Texas Parks and Wildlife separates them with the stripes, body depth and the tooth patches near the back of the tongue:

• Striped bass: distinct stripes, several reaching the tail; slender body, depth less than a third of its length; two distinct tooth patches on the tongue
• White bass: faint stripes, only one reaching the tail; deep body, more than a third of its length; one tooth patch
• Yellow bass: distinct stripes broken above the anal fin; silvery yellow; dorsal fins joined; no tooth patch
• Hybrid striped bass: distinct, usually broken stripes, several reaching the tail; deep body; two tooth patches that may be close together

TPWD adds that all these marks should be read together, because single fish vary. For black bass, TPWD uses the jaw: on a largemouth the jaw reaches well behind the back of the eye with the mouth closed; on smallmouth, spotted and Guadalupe bass it does not.

Largemouth bass can be eaten, and many are. The reasons they are kept less often than panfish come from the sources above:

• Stricter advisories: bass are predators, so health agencies set lower limits. Minnesota's statewide guideline (Minnesota Department of Health, updated 12 August 2026) puts bass at 1 serving a week for most adults and 1 a month for children and pregnant people, the same weekly limit as walleye and northern pike, against 4 a week for sunfish and crappie.
• Sport value: the US Fish and Wildlife Service calls the largemouth one of the top recreational fish in the country, and many anglers release bass so the same fish can be caught again.

Check your state's advisory for the lake before keeping one.