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Sacramento Pikeminnow
Ptychocheilus grandis
Sacramento Pikeminnow is a large native cyprinid of the Sacramento–San Joaquin system and nearby Central Valley rivers. It is an opportunistic predator that can reach impressive size and is often overlooked by anglers despite being a strong fighter.
Sharpbelly
Hemiculter leucisculus
Sharpbelly (Hemiculter leucisculus) is a small, slender Asian cyprinid widely introduced outside its native range and often recorded in slow freshwater habitats. It feeds opportunistically near the surface and midwater, and can become abundant in invaded systems.
Sharptooth Catfish
Clarias gariepinus
Sharptooth Catfish (Clarias gariepinus) is a hardy African air-breathing catfish now widely introduced outside its native range. It inhabits warm, often muddy waters and can survive low oxygen by gulping air.
Shorthead Redhorse
Moxostoma macrolepidotum
Shorthead Redhorse is a large North American sucker that feeds on bottom invertebrates and algae in clear to moderately turbid rivers. It is often abundant where riffles and runs have firm gravel, sand, or cobble bottoms and is usually a bycatch rather than a target game fish.
Shortnose Gar
Lepisosteus platostomus
Shortnose Gar is a long-bodied freshwater predator native to central North America. It favors warm, slow waters and ambushes small fish with its narrow snout and sharp teeth.
Siamese Fighting Fish
Betta splendens
Siamese Fighting Fish (Betta splendens) is a small labyrinth fish native to shallow waters of the lower Mekong basin in Thailand, Cambodia, Laos, and Vietnam. It is best known for aggressive territorial behavior and the long-finned males seen in the aquarium trade.
Silver Bream
Blicca bjoerkna
Silver bream (Blicca bjoerkna) is a small cyprinid of slow rivers, canals, lakes and backwaters across much of Europe and western Asia. It feeds mainly on benthic invertebrates and plant material, and is usually a modest-sized coarse fish rather than a prime sport species.
Silver Carp
Hypophthalmichthys molitrix
Silver Carp (Hypophthalmichthys molitrix) is a large invasive filter-feeding carp native to eastern Asia and now established in many warm rivers, reservoirs, and floodplain waters worldwide. It feeds on plankton, jumps violently when disturbed, and is often more of a nuisance than a targeted sport fish.
Smallmouth Bass
Micropterus dolomieu
Smallmouth Bass is a bronzeback black bass native to clear, cool, rocky waters of eastern and central North America and widely introduced elsewhere. It is a hard-fighting, sight- and vibration-feeding predator that often holds near current breaks and structure.
Smallmouth Bass
Micropterus dolomieu
Smallmouth Bass是常见鱼类，常见于适合该鱼种的水域和结构附近。本条目概述识别特征、典型栖息地和垂钓注意事项。
Smallmouth Buffalo
Ictiobus bubalus
Smallmouth Buffalo is a large North American sucker native to the Mississippi, Missouri, and Red River basins. It feeds mostly by sucking up plankton, detritus, and small invertebrates from open water and slow currents, and is usually targeted accidentally or as a rough-fish challenge.
Southern Redbelly Dace
Chrosomus erythrogaster
Southern Redbelly Dace is a small North American minnow found in cool, clear headwaters and spring-fed creeks. Males develop a vivid red belly and often spawning tubercles; it is mostly of interest to bait collectors and naturalists rather than as a target game fish.