Category: Urchin – Longspined

Fine-scale Commercial Catch

Status Longspined Sea UrchinCentrostephanus rodgersii Fishing mortality in the Centrostephanus rodgersii fishery is represented by annual catch (tonnes) as a proxy. In the most recent 2021/22 season, the annual catch in Tasmania was 494...

Ecosystem and Habitat Interactions Credit: Matt Testoni By-Catch There is no by-catch in this fishery as urchins are harvested by hand. Threatened, Endangered or Protected Species Interactions (TEPs) Interactions with protected species and the...

Commercial Catch Per Unit Effort (CPUE) Data was filtered to exclude dives with the top and bottom 5% of effort (hours per dive). Annual catch rate was calculated by averaging all individual dive catch...

Commercial Catch and Effort Commercial harvesting began in March 2009. The total annual harvest began at less than 10 tonnes a year and gradually increased to 100 tonnes in 2013/14, followed by a decline...

Biology The Longspined sea urchin is a large, fast growing Diadematidae that inhabits temperate reefs at varying depths up to 60m around southeast Australia, Norfolk and Lord Howe Islands, the Kermadec Islands and northern...

Fishery Management Commercial Fishery A commercial fishery for Longspined sea urchins began in 2009 in response to their increased biomass and densities in Tasmania. The annual catch remained below 100 tonnes for the first...

Background The longspined sea urchin (or Centro) was not traditionally found in Tasmanian waters, with the first record of its occurrence in 1978. Rather, evidence suggests that this species has recently undergone a range...

Longspined Sea Urchin luwanuma (Sea Urchin)In palawa kani, the language of Tasmanian Aborigines, with thanks to the Tasmanian Aboriginal Centre. Centrostephanus rodgersii (Longspined Sea Urchin or Centro) Credit: Matt Testoni Longspined sea urchin were...