US Freshwater Fish Guide
Identify fish species, discover the best baits, optimal water temperatures, and where to find them across all 50 states.
All Fish Species
Page 3 of 4 · 47 total species
Largemouth Bass
Micropterus salmoides
The largemouth bass is America's most popular freshwater sport fish. Known for its aggressive strikes and powerful fights, it inhabits warm,...
Longnose Gar
Lepisosteus osseus
The longnose gar is a living fossil — its lineage dates back over 100 million years, making it one of the most ancient fish species in Nor...
Muskellunge (Muskie)
Esox masquinongy
The muskellunge — commonly called "muskie" — is the largest member of the pike family and is known as the "fish of ten thousand casts." ...
Northern Pike
Esox lucius
The northern pike is an apex freshwater predator with a fearsome reputation. Known as the "water wolf," pike use ambush tactics from vegetat...
Paddlefish
Unknown
Paddlefish are members of the ray-finned fish family Polyodontidae, which belong to the basal order Acipenseriformes, one of two living grou...
Pumpkinseed
Unknown
The pumpkinseed (Lepomis gibbosus), also referred to as sun perch, pond perch, common sunfish, punkie, sunfish, sunny, and kivver, is a smal...
Rainbow Trout
Oncorhynchus mykiss
The rainbow trout is one of North America's most prized sport fish and a favorite of fly fishermen worldwide. Native to cold-water rivers an...
Redear Sunfish (Shellcracker)
Lepomis microlophus
The redear sunfish, known as "shellcracker" for its specialized molariform teeth that crush snails and mussels, is the largest of the true s...
Rock Bass (Goggle-eye)
Ambloplites rupestris
The rock bass, commonly called "goggle-eye" for its distinctive red eyes, is a feisty panfish found in clear, rocky streams and lakes across...
Sauger
Sander canadensis
The sauger is the walleye's smaller, scrappier cousin that prefers large, turbid rivers where walleye are less common. Found primarily in th...
Silver Carp
Unknown
The silver carp or silverfin (Hypophthalmichthys molitrix) is a species of freshwater cyprinid fish, a variety of Asian carp native to China...
Smallmouth Bass
Micropterus dolomieu
The smallmouth bass is renowned as one of the hardest-fighting freshwater fish pound for pound. Preferring cooler, cleaner water than its la...
🌡️ Water Temperature & Fishing Guide
🧊 Cold Water Species <65°F
Cold-water species thrive below 65°F and may become stressed or die when water warms above their threshold.
🌿 Warm Water Species 60–80°F
Most sport fish are warm-water species, active and feeding aggressively when water temperatures are between 60–80°F.
🔥 Hot Water Species >72°F
Hot-water species remain active even in summer heat when most cold and warm-water fish seek deep, cooler water.
About This Fish Guide
This comprehensive US freshwater fish guide covers the most common and popular sport fish species found in American lakes, rivers, and reservoirs. Each species profile includes detailed information on identification, habitat preferences, optimal water temperatures, proven fishing techniques, and where to find them across all 50 states.
Water temperature is one of the most critical factors determining fishing success. Fish are cold-blooded, meaning their activity levels, feeding behavior, and location in the water column are directly controlled by temperature. Use the temperature filter above to find species that are currently active based on your lake or river's current water temperature — which you can find on any water body detail page on this site.
Always ensure you have the appropriate state fishing license before fishing, and check local regulations for size and bag limits for each species. Fishing regulations vary significantly by state, water body, and season.