Managing Overabundant Native Marine Species

Mr Jonathon  Stevenson1

1Parks Victoria , Queenscliff , Australia

Abstract

South Gippsland’s Corner Inlet and Nooramunga Marine and Coastal Parks are home to extensive beds of Broad-Leaf Seagrasses (Posidonia australis) . In recent years native sea urchins (Heliocidaris erythrogramma) have created extensive urchin barrens within these seagrass beds, reducing habitat for other species and making these areas vulnerable to erosion of sediments. This presentation will provide some details of the experimental approaches being undertaken by Parks Victoria to try and reduce the impact of these overabundant native grazers in this critically important habitat.

Biography

Jonathon is a Marine Ranger from South Gippsland currently on secondment to support management of marine pests in parks across Victoria.