Periwinkle Status


Lunella undulata


2018/19 Periwinkle Status (Released June 2021)

Stock Tasmanian Periwinkle Fishery
Indicator(s) Catch, Effort, CPUE and mean weight.

Catch rates (CPUE) and size structure is used as performance indicators in the Tasmanian periwinkle fishery. Increases in size limits in 2009 and 2014 had little (<18%) impact on catch rates. Consistent catch rates and robust size limits indicate this stock is unlikely to be depleted, that recruitment is unlikely to be impaired and that the current level of fishing mortality is unlikely to cause the stock to become recruitment impaired.

Learn more about what each stock status classification means on our Stock Status Classifications Information Page:

Stock Status Classifications

Learn more about fisheries terms and concepts on our Science Information page:

Science Terms and Concepts