Three sharks have been caught near a netted Gold Coast beach where a surfer was mauled to death, as investigations into the attack continue.
Nick Slater, a 46-year-old real estate agent, was fatally bitten on the leg while surfing at Greenmount Beach at about 5pm on Tuesday.
His death is only the second fatal shark attack at one of Queensland's beaches protected by nets and drumlines since 1962.
But it has now been revealed the 57km coastline is only protected by 2km of nets, sparking fears beachgoers are not as safe in the water as they once thought.
Early analysis of a tooth lodged in Mr Slater's longboard has suggested the 46-year-old was killed by a 3.5m great white shark.
Longboard rider Nick Slater, 46, was mauled to death by a shark on the Gold Coast on Tuesday
The tooth left embedded in Mr Slater's surfboard has been taken away for analysis to find out what kind of shark attacked him
An investigation will also try to uncover whether a dead tiger shark caught in a net off the Gold Coast beach is the same one that attacked the popular estate agent
A photo of the tooth has been released by the Department of Fisheries, revealing it was 45mm long and 30mm wide.
Queensland Fisheries said two sharks were caught on a drumline and in a shark net near Greenmount Beach on Wednesday.
'There was a 3.3 metre tiger shark alive on a Shark Control Program drumline at North Kirra,' a spokesman said in a statement.
A two-metre tiger shark was found in a net a Currumbin.
'Further investigations will be conducted to discover if there is any link between it and the fatal attack,' Premier Annastacia Palaszczuk told parliament on Wednesday.
On Thursday, a 3.4 metre tiger shark was found on a drumline at Snapper Rocks.
'All catches were processed and disposed of in accordance with the Program's standard operating procedures,' a Department of Agriculture and Fisheries spokesperson said in a statement.
'Tiger sharks are classified as dangerous and included on the Program's list of target species.
'The Queensland Police Service is investigating the fatality at Greenmount Beach and will prepare a report for the coroner.'
There are 27 shark nets at Queensland beaches, along with almost 400 baited drumlines, The Courier-Mail reported.
Documentary director Andre Borell slammed the state's shark net program, which has been relied on for more than 60 years.
'It's totally unacceptable that our government continue to use safety measures from 1962 that have no scientific backing whatsoever,' he said.
Mr Borell said using drone technology and netted swimming enclosures would be a more effective safety measure.
Before nets were put in place, the last fatal shark attack off a Gold Coast beach was in 1958.
Surf cameras captured the moment Mr Slater was killed by a great white shark at a netted Gold Coast beach in the first fatal attack in the region since 1958
Pictured: Mr Slater was was a real estate agent who lived in Miami on the Gold Coast
Mourners descended on Greenmount Beach on Wednesday morning to pay their respects to Mr Slater.
A Westpac Lifesaver Rescue helicopter was circling in the area after first light looking for sharks.
Beaches from Burleigh to Snapper Rocks were closed on Wednesday as lifeguards patrolled the waters on jet skis.
The City of Gold Coast moved to reopen the beaches on Thursday.
'City lifeguards have advised that Gold Coast beaches will reopen this morning but surveillance by chopper, drone and lifeguards will continue until the weekend,' the City of Gold Coast said.
'We advise all beachgoers to exercise extreme caution with baitfish in the water.'
Thomas Richard Tate, Mayor of the Gold Coast, offered his condolences to Mr Slater's family on Wednesday morning.
'Last time we've had a shark attack is 1958, over 60 years ago,' he told Today.
'It doesn't matter how long it has been, still a devastating shock to the community of the Gold Coast.'
Mr Slater is assisted by fellow surfers and beachgoers after he was bitten by a shark on Tuesday
Two women hug at Greenmount Beach on Wednesday morning, following the death of a surfer
Coastalwatch footage captured the moment a surfer brought the injured man to shore with the help of other beachgoers
Pictured: Lifeguards on jet skis search the water at Greenmount Beach on Wednesday
Mr Tate said the shark attack was a reminder to all beachgoers to 'look after your mates'.
'I mean really it brings to reality, when we go off the land we go into water, it is the shark's domain,' he said.
Mr Slater's close friend Adrian Southern said the pair's common ground was their love for