black urchin, spiny sea urchin, hollow-spined urchin
The exoskeleton or body is a deep brown-red to black colour with long needle-like spines protruding from it. These hollow spines can reach 9 cm in length and are a dark purplish to black colour with an iridescent green tinge. The mouth is on the underside of the body.
Log any sightings with
Redmap. Read about the management strategy to tackle the long spined sea urchin populations in Tasmania.
Take care if handling as their fragile spines can puncture skin and remain embedded.
Long-spined sea urchins live around intertidal rocky shores and in coastal waters to a depth of 35 metres.
Long-spined sea urchins are an invasive species that is known to overgraze on seaweeds and algae which are a key habitat for abalone and rock lobster. A range of projects addressing the impacts of long-spined sea urchin have been funded by the Abalone Industry Reinvestment Fund.
The roe is edible but its quality can vary seasonally.
Level 3, 134 Macquarie St
Hobart TAS 7000
Phone: (03) 6165 3233, 1300 720 647
GPO Box 44
Phone: (03) 6165 3000, 1300 368 550
Level 1, 134 Macquarie St