The status of invertebrates in Port Phillip Bay in 2023-2024 was Fair and the trend is Improving. This status is informed by available time-series data indicating the biodiversity status of urchins, abalone and reef invertebrates. Spider crab data may be incorporated into the status in the future. The confidence score for this data is Low. The status was calculated using a Biological Quality Ratio. For more detail on how this status was calculated view the methodology section.
Data contributors and acknowledgements:
Page last updated: 30/10/25