Great white sharks will be tracked along the coast from Perth to the South Australian border for the first time under an expansion of WA's shark monitoring network.
The 39 acoustic and satellite-linked receivers monitoring tagged sharks along the Perth coast will be boosted by 100 receivers along the South West and south coasts.
Concerned by the lack of south coast shark monitoring despite it being a great white hotspot, Esperance abalone diver Marc Payne is building his own network to contribute to research.
He and his crew took heritage group Gabbie Kylie Foundation members to Salisbury Island, 60km offshore and home to one of WA's biggest seal colonies, to put two receivers in a channel in which sharks move to attack seals.
Mr Payne said he wanted to bridge the gap between Perth and South Australia, which tagged about 100 great whites in the past two years compared with 12 in WA.
"It's really going to do a lot for research and tagging in the Esperance area might pick these sharks up," he said.
Hundreds of seal pups swam in rock pools and sheltered in crevices on the island where deep water drops straight off the shoreline and many will be a great white's meal.
A 3m great white shark circled boats within hours.
Department of Fisheries senior shark researcher Rory McAuley said new State-funded receivers would also greatly expand their range. The units would be deployed this year to show whether the sharks stayed in WA or migrated and what drove their movements.Angela Pownall
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