The long-spined sea urchin, Centrostephanus rodgersii has expanded its distribution southwards from southern New South Wales, through Eastern Victoria, the Bass Strait Islands and down the east coast of Tasmania. In some areas of Tasmania abundance of C. rodgersii has increased substantially, even...

At low-levels of exploitation, commercial harvesting of long-spined sea urchins was found to prevent increase in urchin density. Adjacent unfished locations experienced an increase in both urchin density and grazed area over the 2014 – 2016 study period. Research sampling of populations...

The rapidly developing international tuna aquaculture industry started with a joint Japan/ Australia experiment in 1991. Since then it has grown into the largest finfish aquaculture in Australia with an export value of $290 million. It is based on the capture of wild fish and subsequent fattening of...