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The Xingu River ray, River stingray, white-blotched river stingray, or polka-dot stingray (Potamotrygon leopoldi) is a species of freshwater fish in the family Potamotrygonidae. It is endemic to the Xingu River basin in Brazil and as such prefers clear waters with rocky bottoms. [ 1 ]
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. To survive in fresh water, fish need a range of ...
This fish also occurs in estuaries. largest freshwater pufferfish, they are very peaceful with most fish except, other Mbu pufferfish, other fish that will harass them. see above [82] Congo pufferfish: Tetraodon miurus: 15 cm (5.9 in) As it is an ambush pufferfish it is best to house it alone as it will attack tank mates. See above. [83]
Freshwater herring" is a term applied to a wide variety of freshwater fish which resemble herring: Clupeoides papuensis, toothed river herring; Coregonus albula, vendace; Potamalosa richmondia, Australian freshwater herring; Salvelinus grayi, the Lough Melvin charr; Sardinella tawilis, the bombon sardine
Fish species of Aravaipa Canyon; List of fishes native to Arizona; List of freshwater fish in California; List of fishes of Idaho; List of fishes of the Indiana Dunes; List of fishes of Isle Royale National Park; List of freshwater fishes of Maryland; List of fishes of Minnesota; List of fishes of Montana; List of freshwater fishes of Oregon
Of North American freshwater species, an estimated 48.5% of mussels, 22.8% of gastropods, 32.7% of crayfishes, 25.9% of amphibians, and 21.2% of fish are either endangered or threatened. [24] Extinction rates of many species may increase severely into the next century because of invasive species, loss of keystone species, and species which are ...
The American paddlefish is a smooth-skinned freshwater fish with an almost entirely cartilaginous skeleton and a paddle-shaped rostrum (snout), which extends nearly one-third its body length. It has been referred to as a freshwater shark because of its heterocercal tail or caudal fin resembling that of sharks, though it is not closely related. [7]
Some fish, such as salmon and some species of shark, are able to travel between the freshwater and saltwater environments, linking the two. [11] These fish are referred to as diadromous fish, stemming from Greek and meaning "to run between", in reference to the fish running between freshwater and saltwater. [12]
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