Standard Presentation 2024 Australian Marine Sciences Association Annual Meeting combined with NZMSS

Using an interim population consequences of disturbance model to assess the impact of offshore wind farms on large whale populations (#186)

Rebecca Dunlop 1 , Sophia Volzke 1
  1. University of Queensland, Brisbane, QLD, Australia

The “Population Consequences of Disturbance (PCoD)” model is a framework with which to relate the response of individuals to a potential stressor to changes in population dynamics via changes in individual health. If fully parameterised, the PCoD framework allows a comprehensive, population-level, evaluation of the impact of disturbance-inducing activities. However, they are time-consuming and expensive to fully parameterise, especially when there are large data gaps. This project uses available data to develop an interim PCoD model for blue whales (Balaenoptera musculus) and southern right whales (Eubalena australis) to determine the likelihood of a population level impact of one, or multiple, wind farm developments off the Australian coast. The model uses a decision pathway for each whale species, and for each proposed wind farm development area, to determine vulnerability of the population to the activity. Outcomes will also provide a first-pass risk analysis of the likelihood of population-level negative impacts on blue whale and right whales exposed to wind farm construction noise. In addition, model outcomes will identify key research areas to inform further data collection efforts and assist the development of more fully parameterised PCoD models in the future.