The heart-stopping moment a fisherman jumps out of boat just as huge marlin with pointy snout jumps in Boat's location and identity of frightened crew is unknown Marlin nearly pierced one man with its long spiked bill Frazzled fisherman jumped overboard as the boat continued forward and the fish flailed wildly on the deck A jaw-dropping video that shows a large marlin jumping into a fishing boat, startling the unsuspecting crew and forcing one man to dive overboard, has become an Internet hit. The video shows a marlin suddenly launching itself onto the deck of the boat - its powerful body and long, sword-like bill dangerously thrashing about. It doesn't take long before the crew members realise, with no small amount of horror, that they are now sharing a small space with a huge fish who is as angry as it is pointy. In order to avoid being stabbed by the fish's snout, one fisherman jumps straight out of the boat and into the water as his colleagues give their visitor a wide berth. The huge fish continues to thrash around on the deck as the boat speeds forward, leaving the hapless fisherman bobbing about in the waves. Another passenger scrambles to free a fisherman who is strapped to a fishing chair, still holding onto his now-redundant fishing rod. The confined fisherman finally brakes free, leaving the marlin to flop feverishly around the deck. Three fisherman begin to struggle with the a heavy marlin caught on the fishing line The marlin jumps on board the boat of frazzled fishermen, who attempt to escape the fish's sword-like bill One fisherman, who appears to be an older male, hoists himself out of the attached chair and moves away from the flailing marlin Despite the fact that there is no other information provided - perhaps thankfully for the crew their identities have not been revealed - the video has been doing the rounds on Internet sites after being posted on Liveleak.com. Deep-sea fishing for marlin has long been considered an extreme sport by both professional and amateur fishermen. They are not little fish - the Atlantic blue marlin can grow to over 16ft long and can weigh up to 1,800lb. They are also incredibly powerful and fast - with the blue and black marlin reaching speeds of more than 60mph. They get their name from the long spiked bill or snout, which resembles a marlinspike tool used in marine ropework. The needle-like tool is used for 'marling', winding twine called marline around larger ropes.