The beluga sturgeon in Russia is the largest freshwater fish in the world. The white sturgeon is the largest freshwater fish in North America. White sturgeon have been reported to reach lengths of 15-20 feet and weights of nearly one ton.
The ray, as it turned out, measured 13 feet long and weighed 661 pounds, which Guinness World Records recognized as the largest-ever recorded freshwater fish in 2022.
The Murray cod is the largest exclusively freshwater fish in Australia, and one of the largest in the world. Other common names for Murray cod include cod, greenfish, goodoo, Mary River cod, Murray perch, ponde, pondi and Queensland freshwater cod.
The largest fish ever caught which is verified and listed by the IGFA is a 2,664lb (1,208kg) great white shark. It was caught by Australian angler Alfred Dean in April 1959 off the coast of Ceduna, in South Australia.
An adult Chinese sturgeon can grow up to five meters in total length, and its weight can reach almost 500 kilograms, which is equivalent to four adult pandas.
The queenfish (Seriphus politus) is a species of fish in the family Sciaenidae, the drums and croakers. It is native to the eastern Pacific Ocean, where it occurs along the North American coastline from Oregon to Baja California; it has been recorded as far north as British Columbia.
White sturgeon have been reported to reach lengths of 15-20 feet and weights of nearly one ton. The second largest freshwater fish in North America is the alligator gar.
The heaviest specimen on record is a bump-head sunfish (M. alexandrini) caught off Kamogawa, Chiba, Japan, in 1996; it weighed 2,300 kg (5,070 lb) and measured 2.72 m (8 ft 11 in) in total length.
The largest species is the beluga sturgeon (Huso huso) of the Caspian and Black seas, the only extant bony fish to rival the massiveness of the ocean sunfish. The largest specimen considered reliable (based on remains) was caught in the Volga estuary in 1827 and measured 7.3 m (24 ft) and weighed 1,474 kg (3,250 lb).
The largest one currently on record belongs to fisherman Ken Fraser, who caught a bluefin tuna off the coast of Nova Scotia, Canada in 1979. That fish weighed in at an astounding 1,496 pounds!
Australian or Queensland lungfish are the oldest freshwater fish in the country and the third most long-lived in the world, after lake sturgeons (from North America, can live to 152) and beluga sturgeon (Caspian Sea, can live to 118).
Australia's smallest freshwater fish is perilously close to extinction. The only wild population of this diminutive fish is found in a few small artesian springs on our Edgbaston Reserve in central Queensland.
The fish was caught using a 200mm unweighted paddle tail soft plastic (8 inch Keitech Easy Shiner) while casting along the sandflats of the Camden Haven River. According to NSW Fisheries data, the 105cm flathead could be 15 (possibly even more!) years old.
Josh Jorgensen, the presenter of YouTube's largest saltwater fishing show, hosted three absolutely massive men off the coast of Florida to catch the world's strongest fish, the Goliath Grouper. Goliath Grouper are the largest member of the bass family in the Atlantic Ocean.
Their scientific name is Hydrocynus goliath. They are also called giant tigerfish. Goliath tigerfish are predatory freshwater fish living in the Congo River Basin, including Lake Upemba, Lake Tanganyika, and Lualaba River.
The Beluga Sturgeon (Huso huso) is the biggest freshwater fish in the world. The largest Beluga ever caught weighed 1,571 kg and was 7.2 m long.
Sperm whales have been cut open to reveal entire sharks and squid that had been swallowed whole, as well as other flotsam. Their jaws aren't designed for “chewing”—thus, they are adept at swallowing whole prey.
Then comes an even bigger surprise. A bony fish known as a wreckfish comes from behind the researchers' remotely operated vehicle and snatches a shark into its mouth, leaving only the tail flailing between its lips.
Indeed, orcas are the top predator in the ocean and small sharks are a target for some populations. Orcas will even attack and kill great white sharks just to eat their livers which are a high energy food source.
Leedsichthys problematicus, meaning "Alfred Leed's problem-causing fish", was another prehistoric ocean giant. Estimates put Leedsichthys at approximately 16.5m long, substantially larger than the average Megalodon. Although huge, this fish was probably a filter-feeder, not a predator.
But the award for world's biggest snapper goes to the African red, if not by much. Still, the IGFA record for the African cubera is 132 pounds, 4 ounces (Keur Saloum, Senegal, 2001).
Atlantic bluefin tuna have been recorded at up to 680 kg (1,500 lb) in weight, and rival the black marlin, blue marlin, and swordfish as the largest Perciformes. Throughout recorded history, the Atlantic bluefin tuna has been highly prized as a food fish.
The fish that currently holds the depth record is a species of cuskeel (family Ophidiidae) called Abyssobrotula galatheae. This 20 cm long fish has been collected from the Puerto Rico Trench at a depth of 8,370 m (27,455 feet).
Salmon is called the king of fish.
The biggest fish in the ocean is the Rhincodon typus or whale shark. Despite their tremendous size and intimidating appearance, whale sharks are commonly docile and approachable.