The status of abalone (Haliotis rubra, Haliotis laevigata, Haliotis scalaris) in Port Phillip Bay in 2023-2024 was Very Poor and the trend is Declining. This status is informed by the latest available time-series data indicating mean density. The confidence score for this data is Low.
Abalone provides Victoria with one of its most valuable commercial fisheries. Abalone exhibit very high fecundity, with size and growth rates varying significantly across species.
The status was calculated using a Biological Quality Ratio from data provided by Reef Life Survey and the Victorian Subtidal Reef Monitoring
Photo credit: Chromodoris tasmaniensis, on a pink sponge. Julian Finn / Museum Victoria, Rights/Licence: CC BY (Attribution)
Program. The decline of this species could also be attributed to the reduction in number of surveys available for data analysis and change in monitoring sites. For more detail on how this status was calculated view the methodology section.
Data contributors and acknowledgements:
Page last updated: 30/10/25