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While shark nets and drum lines share the same purpose, drum lines are more effective at targeting the three sharks that are considered most dangerous to swimmers: the bull shark, tiger shark and great white shark. [80] SMART drumlines can also be used to move sharks, which greatly reduces mortality of sharks and bycatch to less than 2%. [81]
From 2014 to 2015, 621 sharks died in Queensland. [43] From 2017 to 2018, 218 sharks were killed, including 75 tiger sharks and 41 bull sharks. [44] From 2001 to 2018, a total of 10,480 sharks died on drum lines in Queensland. [45] In 2015, the following was said about bycatch in Queensland's "shark control" program (which uses drum lines):
The majority of shark nets used are gillnets, which is a wall of netting that hangs in the water and captures the targeted sharks by entanglement. [6] The nets may be as much as 186 metres (610 ft) long, set at a depth of 6 metres (20 ft), have a mesh size of 500 millimetres (20 in) and are designed to catch sharks longer than 2 metres (6.6 ft) in length.
Kinsler says the reality of any day at the beach is: There are very often sharks around you, and you just don't know it. "People are in and around sharks when they're swimming just off the shore ...
Shark bites are common in Volusia County, with blacktips and bull sharks mostly to blame. But the bites are rarely fatal. Here is what we know.
The night shark (Carcharhinus signatus) is a species of requiem shark, in the family Carcharhinidae, found in the temperate and tropical waters of the Atlantic Ocean.An inhabitant of the outer continental shelf and upper continental slope, this shark most commonly occurs at depths of 50–600 m (160–1,970 ft) and conducts a diel vertical migration, spending the day in deeper water and moving ...
Swell sharks hunt at night for bony fish, molluscs, and crustaceans. [2] [3] They will eat prey that is dead or alive. [3] They feed either by sucking prey into their mouth or by waiting motionless on the sea floor with their mouth open, waiting to encounter prey. [2] [4] Swell sharks have also been known to look for food in lobster traps. [2]
Shark baiting is a procedure where the water is baited by chumming with fish or other materials attractive to sharks. [17] Tourists remain inside a shark-proof cage while tour guides bait the waters to attract sharks for the tourists to observe. There have been claims that this could lead to potentially aggressive behavior by the shark ...