


South American tropical freshwater fish (largest freshwater fish) which can grow up to 10 ft long. "They commonly reach 3 m (9.8 ft) in length, and the maximum reported is 4.55 m (14.9 ft) in length and 650 kg (1,430 lb) in weight" from wikipedia One of the largest of the Marlin family, the Atlantic blue marlin ( Makaira nigricans) can reach 5 m (16.4 ft) in length and 818 kg (1,803 lb) in weight. The heaviest known bony fish in the world The Whale Shark also has the thickest skin of any animal, measuring up to 6 inches (15 cm) on the back. The heaviest specimen ever found (in March 1994) weighed 36,000 kg. Contact us if you know of other fish that should be on the list. Where do you get a scale to weigh a shark from anyway? This is a list in progress, the weights have been researched from different sources, and some represent the largest found, other the estimated average weight of the species. The weights listed are sometimes estimated weights, for some of these animals it is quite hard to weigh as you can imagine. This is not a definitive list, the information has been gathered from several sources and there are probably some fish that have been left out. Whale sharks at the Okinawa Churaumi Aquarium
