Bass

Smallmouth Bass

Micropterus dolomieu

4.0

At a Glance

Avg Length

16"

Avg Weight

2.5 lbs

World Record

11.9 lbs

Habitat

Rivers, Clear Lakes

About the Smallmouth Bass

Smallmouth Bass (Micropterus dolomieu). Found in Rivers, Clear Lakes. Average length 16 in, weight 2.5 lbs. World record: 11.9 lbs (Tennessee, USA).

The Smallmouth Bass is one of the most recognizable freshwater species in North American waters, classified scientifically as <em>Micropterus dolomieu</em>. It belongs to the Bass group, most commonly found in rivers, clear lakes environments. Anglers target this species for both sport and table fare, and it appears across a broad range of water bodies throughout the United States.

A typical Smallmouth Bass runs 16 inches in length and weighs around 2.5 pounds, though fish in prime habitat regularly exceed these averages. The all-tackle world record stands at 11.9 lbs, set at Tennessee, USA, making it a legitimate target for anglers chasing personal bests. Conservation status varies by region — check local regulations before keeping fish, as some waters have slot limits or catch-and-release requirements in place.

Habitat & Range

Primary habitat: Rivers, Clear Lakes.

The Smallmouth Bass thrives across a wide range of freshwater environments throughout North America. Seasonal movements are driven by water temperature — fish tend to move into shallower water during spring and fall feeding periods, and push deeper or seek cover during the heat of summer and cold of winter. Understanding these patterns is critical to locating fish consistently across the season.

How to Fish for Smallmouth Bass

Best bait: Crayfish.

Technique: Drop Shot.

Match your presentation to the season and conditions. In clear water, downsize your bait and slow your retrieve. In stained or muddy water, switch to high-contrast colors and add vibration. Early morning and evening are the most productive windows during summer months. During spawning season, fish become highly territorial and will strike out of aggression as well as hunger.

World Record

The all-tackle world record Smallmouth Bass weighed 11.9 lbs, caught at Tennessee, USA. This record represents the upper end of what this species achieves under ideal conditions. Most anglers targeting personal bests focus on proven trophy waters with the right combination of habitat, forage base, and light fishing pressure.

State Regulations

Regulations vary by state and water body. Before fishing for Smallmouth Bass, verify current size limits, bag limits, and open seasons with your state fish and wildlife agency. Check your state's fishing license requirements and season dates at the FishLog Fishing License guide.