Seabed mapping first for Byron
THE Cape Byron Marine Park has become the first in NSW to have its seabed completely mapped using a program that has been described as one of the best in Australia.
Using side scan sonar technology, Cape Byron’s diverse habitats have now been fully documented.
Key findings include:
- Julian Rocks’ huge fish diversity, grey nurse sharks and abundance of temperate corals.
- One of the narrowest points on the continental shelf is at Cape Byron.
- The Lennox Head moat with its boulder reef habitats.
- The spanner crab spawning area south of Cape Byron.
Scientific teams will soon return to the Northern Rivers to map areas outside the marine reserve and identify areas of similar habitat.
They will also study the region’s river plumes to examine the effects of large flood events on the ecosystems in the Cape Byron Marine Park and nearby areas.
This comes as a new report, Marine Park Science in NSW, An Independent Review, was released by a group of renowned professors and researchers.
It sets the direction for the next five years of research at the Department of Environment, Climate Change and Water.
Director of environment and conservation science, Klaus Koop, said the report also praised the scientific work being done in NSW marine parks as ‘innovative’ and ‘excellent’.
He said he was thrilled their hard work had been recognised.
“Of course this is all very encouraging news,” Dr Koop said.
“Not only are we on the right track with our scientific program within marine parks, but a number of specific programs, including the seabed mapping and the Baited Remote Underwater Video System, which measures fish abundances, sizes and biomasses, have been recognised.
“The seabed mapping is high technology mapping of the estuaries and seabed along the open coast, and has been undertaken now in all the marine parks.
“Sonar instruments send down signals and these signals bounce back off thebottom of the ocean to create images for us.
“On land it’s very easy to see what’s there, but the bottom of the sea is hidden from us.
“We’ve now found new habitat in a number of the marine parks.
“And with our new high tech boat, the Bombora, now out and working, we’re looking forward to discovering even more about the world at the bottom of the ocean.”