Smallmouth vs largemouth bass

Quick answer: Smallmouth and largemouth bass are different black bass species. Smallmouth tend to be bronze with vertical bars and a jaw that stops near the eye; largemouth typically have a darker horizontal side stripe and a jaw that reaches behind the eye. Smallmouth often favor rocky water, while largemouth frequently use grass, wood and warmer cover.

The Ultimate Battle: Smallmouth against Largemouth Bass

Both species belong to the black bass group, but their habitat preferences, appearance and fishing patterns differ. Compare their identifying features below, then follow our largemouth bass and smallmouth bass profiles for species-specific fishing advice.

While both largemouth and smallmouth bass are types of black bass, there are many differences between them that anglers should know. In this article, we’ll talk about fishing smallmouth against largemouth bass, the difference, and their traits and downsides. Be sure to stick around!

The Defining Features of Smallmouth Bass

The biggest difference between smallmouth and largemouth bass is that the smallmouth bass has a lighter color and a smaller jaw – hence their name. Smallmouth bass are generally brown with red eyes and dark vertical bars or vertical stripes along their bodies, which helps distinguish them from largemouth bass. They are sometimes called ‘brown bass’ or ‘smallies’ due to their coloration and fighting spirit. The largest smallmouth bass grows between 12 and 18 inches and can be bronze, brown, or olive green. These species are native to North America and are often found in colder waters, especially in northern lakes and rivers. Smallies are commonly associated with rocky bottoms and rocks, where they hunt for prey. They prefer deep, clear, and cool waters often found in rocky highland reservoirs and glacial lakes, as well as swift, shallow currents, particularly below dams. During certain times of the year, smallmouth bass seek out deep water and calm waters, but can also be found in swift, shallow currents below dams. The St. Lawrence River is a renowned destination for anglers seeking trophy smallmouth bass. To find smallmouth, target rocky structures and clear, moving water.

Smallmouth bass is also an eager fish that eats everything on the menu. Their typical diet consists of insects, smaller fish, crayfish, and other aquatic animals. That’s why anglers use spinnerbaits, crankbaits, jerk baits, buzz baits, as well as finesse tactics like ned rigs and vibrating jigs to catch this hungry fish, especially in clear and calm waters. Many anglers describe smallmouth bass as especially strong fighters for their size, but “which fights harder” is subjective and depends on fish size, current, water temperature, tackle, and individual fish behavior.

The Defining Features of Largemouth Bass 

You can also see the difference between largemouth and smallmouth bass in the largemouth’s upper jaw, which extends past the eye—a key identifying feature that helps anglers distinguish largemouth from other bass species. Largemouth bass is darker than smallmouth, and you can catch them in green, black, or brown colors with horizontal lines along the body.

The largemouth bass is generally bigger than the smallmouth—actually, it’s the largest freshwater game fish in the sunfish family. Largemouth bass can grow larger than smallmouth bass, often reaching sizes of 15 pounds or more, while smallmouth typically top out around 10 pounds. The standard body length of largemouth bass ranges between 16 and 24 inches. Largemouth bass thrive in clear and/or stained lakes with abundant shallow cover such as vegetation, docks, brush, or weed beds, and they prefer warmer waters compared to smallmouth bass. Largemouth tend to avoid strong currents, often sheltering in cover and using current breaks in rivers to rest and ambush prey. They are also well adapted to muddy water conditions, relying on vibration and scent to locate prey.

The largemouth diet consists of smaller fish, insects, frogs, shad, crawfish, and crayfish. Professional anglers usually use plastic worms, swimbaits, and live bait to catch this aggressive predator.

Fishing Technique Differences

Largemouth bass often relate to vegetation, wood, docks, and other cover, so flipping, pitching, Texas rigs, jigs, frogs, spinnerbaits, and other cover-oriented presentations are common. Smallmouth bass are frequently associated with rock, gravel, current, points, shoals, and open-water structure, where drop shots, tubes, jerkbaits, crankbaits, swimbaits, and finesse presentations can be effective.

Those are tendencies, not hard rules. Both species can use shallow or deep water, chase moving baits, hold around cover, and respond differently as season, water clarity, current, forage, and temperature change.

The U.S. Fish and Wildlife Service describes largemouth bass as strongly associated with vegetated lakes, ponds, swamps, and backwaters, while smallmouth bass are commonly found around rocky lake habitat and clear, gravel-bottom river runs and pools. The dorsal fin is a helpful feature for distinguishing between the two species: smallmouth bass have a shallow indent in the dorsal fin, making it appear as one continuous fin, while largemouth bass have a deeper indent, making it look like two separate fins. Additionally, juvenile largemouth bass have different dietary needs and behaviors compared to adults, often feeding on smaller prey. Anglers often target other freshwater fish species such as crappie, which, like bass, are popular for both sport and table fare.

Smallmouth Bass vs Largemouth Bass: Ultimate Comparison

Smallmouth and largemouth bass are different species in the same genus, Micropterus, and the same sunfish family, Centrarchidae. They are both freshwater black bass, but they differ in identification, preferred habitat, typical size, and common fishing approaches.

For identification, the jaw position, dorsal-fin notch, body markings, and habitat together are more reliable than color alone. Juveniles can be especially easy to confuse, so use multiple traits rather than one feature.

What to Choose: Largemouth vs Smallmouth Bass?

Choosing what to fish can be a difficult decision. You should consider numerous factors before deciding which fish to catch, including the water conditions, time of year, fishing gear, and much more. The choice between targeting largemouth or smallmouth bass can also vary depending on factors such as location, season, and water conditions. For example, if you are near warmer and shallower waters, you can always fish for largemouth bass. These fish prefer shallow and warm waters, especially during the summer months.

On the contrary, if you want to fish for smallmouth bass, you must find fast-moving, clear water because it loves open waters during the colder months. Moreover, the smallmouth bass is most active during the spring and fall.

Other factors can also prompt you to decide which bass to fish. For example, the fishing gear you use. If your tackle box is equipped with large lures and heavy lines, and you prefer pitching and flipping movements, then the largemouth bass is the right choice! However, if you use lighter lines and vibrating baits, you can always cast your lure into the open waters and attract some smallmouth bass.

Fishing for bass should also be fun! Largemouth bass can be fun to catch, hiding their large bodies in the covers and waiting for the bait. Smallmouth bass, on the other hand, can put up a far more exciting battle and acrobatic movements.

Lure color should be chosen for water clarity, forage, depth, light, and the presentation—not as a fixed rule for choosing smallmouth versus largemouth. Both species can respond to natural, dark, bright, or contrasting colors when conditions make that presentation effective.

Largemouth vs Smallmouth Bass: Final Words

Choosing which to fish – smallmouth vs largemouth bass – is a fun learning process about the particular fish, its characteristics, and fishing techniques. Once you learn the difference between smallmouth and largemouth bass, like coloring, habitat, and diet, you’ll immediately know which one you want to catch.

Smallmouth bass is for anglers who’d want to see some acrobatic moves and tight battles, while largemouth is fun because it hides in the waterbeds and reeds and demands time and concentration. Furthermore, you can always analyze the fishing equipment needed (rods, lures, and lines) and choose the type of bass you want to catch accordingly.

Lastly, the water conditions around you and where you go for bass fishing are crucial! If you’re fishing in shallower waters, cool and clean streams, and rivers, hope to catch plenty of smallmouth bass. However, if you fish in highly vegetative lakes and swamps, you’ll witness the powerful strikes of the big guys!