Science writer Jason Bittel tweeted about the stingray’s discovery, sharing his amazement. A 661-pound (300 kilos) giant freshwater stingray caught and released near a remote island in the Mekong River is largest freshwater fish in the world. The tag and its signals will allow researchers to track the stingray’s movements and hopefully discover more about how the species behaves in the Mekong. One of the largest freshwater fishes, Alligator Gar, often known as the fossil fish or primitive fish, is one the largest freshwater fishes in the world. The previous record holder was a Mekong giant catfish that weighed 646 pounds the new record holder weighs 661 pounds. Over a dozen people dragged the tarp to the shore to measure and weigh the female on three commercial scales with a makeshift wooden platform. A fisherman on the Mekong river in Cambodia has hooked the biggest freshwater fish ever recorded, scientists say. A Cambodian fisherman caught a monster 661-pound freshwater stingray. On Instagram, Wonders of the Mekong wrote that this was the first-ever instance of an acoustic tagging effort of a freshwater stingray. The World’s Largest Freshwater FishCaught in 2022. The researchers then tagged the fish for tracking and set it free. And with only 175 total fish at last count, they’re the rarest fish on the planet. PADDLEBOARDERS SPOT MASSIVE SUNFISH BENEATH THEM OFF CALIFORNIA COAST The one that didn't get away an 18-hour effort On the river, the fisherman did all he could to keep the stingray on the line and from running. They determined that the stingray was female and in great health. What is the rarest fish caught Indeed, the bottomless geothermal pool that gives the Devils Hole pupfish (Cyprinodon diabolis) their name plus some frisky mating behavior that resembles puppies playing is the narrowest geographic range of any vertebrate. Record keepers confirmed that the 661-pound freshwater stingray caught on June 13, was indeed the largest freshwater fish in the world. The stingray was affectionately named Boramy, which means “full moon” in Khmer, the official and national language of Cambodia. The scientists and numerous locals manoeuvred the giant stingray onto a tarp to assess, measure and weigh the fish on three scales placed next to each other. ![]() The next morning, Thun, 42, contacted scientists from the Cambodia-based research group Wonders of the Mekong, who were sent to help the fisherman evaluate the creature. Part of the Sun breaks free and forms a strange vortex, baffling scientists Canada’s single-use plastics ban a ‘first step’ in waste reduction.
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