Catfish
With a possible total length up to 3 m (9.8 ft) and a maximum weight of over 150 kg (330 lb) it is the second largest freshwater fish in its region after the beluga sturgeon...
Freshwater Eel
Some details of eel reproduction are as yet unknown, and the discovery of major eel spawning grounds in the Sargasso Sea is one of the more famous anecdotes in the history of Ichthyology.