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Freshwater fish are fish species that spend some or all of their lives in bodies of fresh water such as rivers, lakes, ponds and inland wetlands, where the salinity is less than 1.05%. These environments differ from marine habitats in many ways, especially the difference in levels of osmolarity .
Asterisks denote introduced fishes. The list includes several anadromous species, and two normally marine species ( starry flounder and shiner perch ) that are occasionally found in freshwater. Only one species ( Olympic mudminnow ) is a Washington endemic , however three others ( Nooksack dace , Salish sucker, and margined sculpin ) have very ...
Freshwater fish of the United States — species native to rivers, lakes, streams, and ephemeral waters within the U.S.
Live in medium to large rivers and reservoirs in deep water or open water. They can grow up to 20 inches or more and weigh up to 38 lbs. Freshwater drums are bottom feeder as well as carnivore and eat small fish, crayfish, aquatic insects, clams, and snails. They have strong molar teeth in its throat to crush the shell of snail and clams.
The following is a list of common fish species known to occur in the lakes and rivers of Canada.
Deep water of large streams, lakes, reservoirs with sandy or rocky bottom Petromyzontidae (family) Chestnut lamprey: Ichthyomyzon castaneus: Large streams and small rivers, large reservoirs Polyodontidae (family) Paddlefish: Polyodon spathula: Channels in large rivers to medium rivers with moderate flow Sciaenidae (family) Freshwater drum ...
Asterisks denote introduced fishes. 108 species and subspecies are listed, 33 of them introduced. The list includes several anadromous species, and seven normally marine species–starry flounder, staghorn sculpin, saddleback gunnel, Pacific herring, topsmelt, surf smelt, and shiner perch–that are occasionally found in fresh water.
Many color and tail pattern varieties exist. They generally need a ratio of 1 male to 2 females or more. All guppies and mollies are hardy fish that tolerate lower oxygen levels and temperatures than most aquarium fish, give birth to live young, and readily breed in home tanks. [58] can live in full sea water [59] 66 °F - 84 °F (19 °C - 29 °C)