Category: Urchin – Longspined

Longspined Sea Urchin Status

Longspined Sea Urchin Status

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...

Longspined Sea Urchin CPUE

Longspined Sea Urchin CPUE

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...

Longspined Sea Urchin Biology

Longspined Sea Urchin Biology

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...

Longspined Sea Urchin Fishery Management

Longspined Sea Urchin Fishery Management

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...

Longspined Sea Urchin Background

Longspined Sea Urchin Background

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

Longspined Sea Urchin

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...