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Originally posted by cloudbreak
reply to post by KIZZZY
Yep - fresh water doesn't mean safety unfortunately...bull sharks have also been a major problem in Brisbane, Aus. over the years. There are estimated to be more than 500 of them in the Brisbane river...periodically people's dogs get taken from the edge of the river, which is the middle of a metropolitan area
Bull sharks are aggressive, common, and usually live near high-population areas like tropical shorelines. They are not bothered by brackish and freshwater, and even venture far inland via rivers and tributaries.
Because of these characteristics, many experts consider bull sharks to be the most dangerous sharks in the world. Historically, they are joined by their more famous cousins, great whites and tiger sharks, as the three species most likely to attack humans.
Bull sharks get their name from their short, blunt snout, as well as their pugnacious disposition and a tendency to head-butt their prey before attacking. They are medium-size sharks, with thick, stout bodies and long pectoral fins. They are gray on top and white below, and the fins have dark tips, particularly on young bull sharks.
They are found cruising the shallow, warm waters of all the world’s oceans. Fast, agile predators, they will eat almost anything they see, including fish, dolphins, and even other sharks. Humans are not, per se, on their menus. However, they frequent the turbid waters of estuaries and bays, and often attack people inadvertently or out of curiosity.
Bull sharks currently are not threatened or endangered. However, they are fished widely for their meat, hides, and oils, and their numbers are likely shrinking. One study has found that their average lengths have declined significantly over the past few decades.
Originally posted by SNAFU38
Originally posted by cloudbreak
reply to post by KIZZZY
People just have to remember, THEY own the water, we just visit. If someone is unlucky enough (or their dog) to be taken, dont blame the shark, we entered their territory.
I know some take it as surprising sharks arent just in the oceans, but they are everywhere. Aussies know that fact well, we love the water, but we know who owns it.
I concur.
I lived in far north Queensland for 5 years (for non-Aussies, that's in the tropics way up on the north east coast of the continent) and you could not swim in the ocean or the rivers - there were crocodiles, tiger sharks, box jellyfish (stingers) and irukandji jellyfish ( a jellyfish the size of your thumbnail and completely translucent like glass so is invisible underwater and whose venom kills in minutes and mimcs a heart attack).
The beaches were deserted
And what was even worse was that the Great Barrier Reef blocked all the waves - NO SURF!!!
Tiger sharks are named for the dark, vertical stripes found mainly on juveniles. As these sharks mature, the lines begin to fade and almost disappear.
These large, blunt-nosed predators have a duly earned reputation as man-eaters. They are second only to great whites in attacking people. But because they have a near completely undiscerning palate, they are not likely to swim away after biting a human, as great whites frequently do.
They are consummate scavengers, with excellent senses of sight and smell and a nearly limitless menu of diet items. They have sharp, highly serrated teeth and powerful jaws that allow them to crack the shells of sea turtles and clams. The stomach contents of captured tiger sharks have included stingrays, sea snakes, seals, birds, squids, and even license plates and old tires.
Tiger sharks are common in tropical and sub-tropical waters throughout the world. Large specimens can grow to as much as 20 to 25 feet (6 to 7.5 meters) in length and weigh more than 1,900 pounds (900 kilograms).
They are heavily harvested for their fins, skin, and flesh, and their livers contain high levels of vitamin A, which is processed into vitamin oil. They have extremely low re-population rates, and therefore may be highly susceptible to fishing pressure. They are listed as near threatened throughout their range.
Originally posted by KIZZZY
Bull Sharks found in fresh water in New Jersey
Two eight-foot bull sharks - a prime suspect in two of New Jersey's fatal shark attacks in Matawan Creek in 1916 - were caught in the Potomac River near Washington D.C this week. While the shark sightings of early summer in New Jersey slowed greatly over the past month, the capture of these bull sharks resembles their likely trips up the brackish Matawan Creek that fateful summer of 1916. Unlike nearly every other species of North Atlantic shark, the bull shark is comfortable in brackish water.
Fisher Willy Dean caught an eight-foot shark in the Potomac River this week, NBC 4, a local television station, reported. "Dean put out a net Monday at Cornfield Harbor in the Potomac three miles north of Point Lookout with hopes of catching cow-nosed rays for a Solomons Island Marina biologist. When he checked Monday night, everything seemed normal. But when he checked again Tuesday morning, he made a startling discovery," NBC 4 said.
blogs.nationalgeographic.com...
Just when you thought it was safe to go in FRESH WATER? You got it!