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Freshwater shark. Freshwater sharks are sharks able to live in freshwater lakes and rivers, including: the bull shark, Carcharhinus leucas, which can swim between salt and fresh water, and are found in tropical rivers around the world. Some prehistoric sharks (in a broad sense), including hybodonts and xenacanths, are also thought to have ...
The giant pangasius, paroon shark, pangasid-catfish[1] or Chao Phraya giant catfish (Pangasius sanitwongsei) is a species of freshwater fish in the shark catfish family (Pangasiidae) of order Siluriformes, found in the Chao Phraya and Mekong basins in Indochina. Its populations have declined drastically, mainly due to overfishing, and it is now ...
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]
These fish need a larger aquarium than their size suggests. Though they only grow to a length of about 2 inches, they are happiest in groups of 8 – 10 or more, and they appreciate lots of swimming space. [67] 75 - 79 °F (24 - 26 °C) [67] 6.5 - 8.0 [67] Neon blue-eye: Pseudomugil cyanodorsalis: 3.5 cm (1.4 in) Pacific blue-eye: Pseudomugil ...
Rainbow shark. The rainbow shark (Epalzeorhynchos frenatum) is a species of Southeast Asian freshwater fish from the family Cyprinidae. [2] It is also known as the ruby shark, red-fin shark, red-finned shark, rainbow sharkminnow, green fringelip labeo, whitefin shark and whitetail sharkminnow. [3][4] It is a popular, semi-aggressive aquarium fish.
This species is among the longest-living species found in freshwater, with a reported age of 60 years. They are also among the largest fish species found in freshwater, with a maximum reported length of 2.5 meters (8.2 ft) and a maximum reported weight of 159 kg (351 lb). [46] [47] [48] Australian lungfish
Scyliorhinus canicula. (Linnaeus, 1758) Range in blue. The small-spotted catshark (Scyliorhinus canicula), also known as the sandy dogfish, [1] lesser-spotted dogfish, rough-hound or morgay (in Scotland and Cornwall), [2] is a catshark of the family Scyliorhinidae. It is found on the continental shelves and the uppermost continental slopes off ...
The shark's late sexual maturity, low reproductive rate, long gestation period of 11 months and slow growth make it vulnerable to pressures such as overfishing and environmental change. [7] Little is known about the great white shark's mating habits, and mating behaviour had not been observed in this species until 1997 and properly documented ...