Freshwater Fish
19 entries in the Freshwater Fish compendium.
MinnowSmall freshwater fish used widely as bait and sometimes as food.MuskellungeLarge freshwater predatory fish, largest of the pike family.Neon tetraA small, brightly colored Amazonian fish popular in home aquariums.Nile perchA large freshwater predator of economic importance and ecological disruption.PaddlefishAncient ray-finned fish with electroreceptive rostrums, one species now extinct.PerchTrue perch are freshwater fish of the genus Perca.PumpkinseedA small, colorful sunfish native to eastern North America.PupfishSmall fish noted for extreme habitats and rapid evolution.Rainbow troutA widely introduced trout species with an anadromous steelhead form.RicefishSmall fish from rice paddies, model organisms in space.Misgurnus fossilisWeatherfish breathes air through its intestines to survive low oxygen.MudskipperAmphibious fish that skip, climb, and breathe on land.Murray codLarge apex freshwater predator of Australia's Murray-Darling basin.NotopteridaeBony-tongued fishes with knife-like bodies and specialized swim bladders.OsteoglossiformesPrimitive ray-finned fish with bony tongues and electric senses.Pencil fishSmall South American characins known as pencil fish.ReedfishA snakelike African fish that breathes air and explores land.Pouched lampreyA southern-hemisphere lamprey with a distinctive pouch and parasitic adult stage.RabbitfishVenomous, herbivorous fish of the Indo-Pacific, important for food.
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