Micropterus dolomieu, commonly known as the smallmouth bass, is a freshwater fish native to North America's lakes and rivers. It is recognized by its bronze-green body, red eyes, and smaller mouth relative to its cousin, the largemouth bass. Known for its aggressive behavior, it thrives in cool, clear waters and is a prized catch among anglers.

Micropterus dolomieu, commonly known as the Smallmouth Bass, is native to North America. Its geographical distribution primarily includes the eastern and central United States and parts of southeastern Canada. The species is naturally found in the Great Lakes region, the Saint Lawrence River, the Mississippi River basin, and many watersheds in the northeastern United States.

Smallmouth Bass typically inhabit freshwater environments with clear, cool streams, rivers, and lakes. They prefer waters with rocky or sandy substrates and often seek cover around structures such as submerged logs or vegetation. The species thrives in environments where water temperatures range between 60-80°F (15-27°C) and requires well-oxygenated water.

As a predatory fish, the Smallmouth Bass occupies an ecological niche as a top predator in its freshwater habitats. It feeds on a variety of prey including insects, crayfish, and smaller fish, playing a crucial role in maintaining the balance of aquatic ecosystems. The species is adaptable and can adjust to different water conditions, though it prefers habitats with moderate to high flow rates, which provide abundant oxygen and food resources.