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| Port Phillip Bay (Western Shoreline) and Bellarine Peninsula Ramsar Site | |
|---|---|
| Name | Port Phillip Bay (Western Shoreline) and Bellarine Peninsula Ramsar Site |
| Location | Victoria, Australia |
| Area | 1,343 ha |
| Designation | Ramsar Wetland of International Importance |
| Designated | 2002 |
Port Phillip Bay (Western Shoreline) and Bellarine Peninsula Ramsar Site is a coastal wetland complex on the eastern flank of Port Phillip encompassing intertidal mudflats, saltmarshes, and coastal lagoons along the western shoreline and the Bellarine Peninsula. The site lies within the governance of Victoria and overlaps with municipal areas including the City of Greater Geelong and the Surf Coast Shire. It supports internationally significant populations of migratory shorebirds and estuarine fauna and is linked to broader conservation frameworks such as the Ramsar Convention and the East Asian–Australasian Flyway Partnership.
The Ramsar site comprises a mosaic of wetlands adjoining urban and agricultural landscapes between Point Lonsdale and the mouth of the Barwon River. Habitats include saline lagoons at Swan Bay, intertidal flats at Edithvale-Seaford Wetlands (contextual proximity), and remnant saltmarshes near Breamlea and Queenscliff. The assemblage supports species listed under the Environment Protection and Biodiversity Conservation Act 1999 such as the Bar-tailed Godwit and the Eastern Curlew, and contributes to the ecological character of Corio Bay and adjacent marine areas.
The site spans coastal lowlands on the southern coastline of Australia, facing the entrance to Port Phillip at The Rip and encompassing geomorphic features formed during the Holocene sea-level rise. It includes tidal flats along the western shoreline near Point Henry, shallow bays such as Swan Bay, and barrier islands like Oyster Bank (local nomenclature). The landscape is bounded inland by urban settlements including Geelong and agricultural plains of the Bellarine Peninsula, and connects hydrologically with freshwater systems such as the Barwon River estuary and the Leigh River catchment.
Vegetation communities comprise samphire-dominated saltmarsh, seagrass meadows in sheltered shallows, and mangrove patches where salinity permits—providing habitat for invertebrates, fish and waterbirds. The area is a critical staging ground for migratory waders on the East Asian–Australasian Flyway including Red-necked Stint, Ruddy Turnstone, and Sanderling, and supports resident species such as Australian Pelican and Australasian Bittern in nearby freshwater wetlands. Subtidal areas host fisheries species like King George Whiting and Black Bream, while threatened taxa recorded in the region include Growling Grass Frog and various listed fish under the Environment Protection and Biodiversity Conservation Act 1999.
Listed under the Ramsar Convention in 2002, the site met criteria for internationally important waterbird populations and representative wetland types of the Temperate Australasia bioregion. The designation complements national protections delivered through the Environment Protection and Biodiversity Conservation Act 1999 and state instruments such as the Flora and Fauna Guarantee Act 1988. The Ramsar listing recognizes values including biodiversity, fish nursery function connected to Corio Bay and Port Phillip Bay, and the role of the wetlands in supporting obligations under the Convention on Migratory Species and bilateral agreements like the Agreement on the Conservation of African-Eurasian Migratory Waterbirds (comparative framework).
Primary threats include coastal urbanisation in Geelong, altered hydrology from drainage and channelisation, invasive species such as Spartina and introduced mammals, and water quality pressures from stormwater and agricultural runoff in the Barwon River catchment. Climate change-driven sea-level rise poses long-term erosion and salinisation risks to saltmarsh and coastal dune systems at Point Lonsdale and Queenscliff. Management actions are coordinated among agencies including the Department of Environment, Land, Water and Planning (Victoria), Parks Victoria, and local councils, utilising tools from the Victorian Coastal Strategy and regional catchment plans prepared by Barwon Water and the Corangamite Catchment Management Authority.
The wetlands are situated on the ancestral lands of the Wathaurong (Wathawurrung) People and contain sites of Indigenous cultural significance such as shell middens and traditional fishing grounds. European heritage includes historic lighthouses at Point Lonsdale Lighthouse and maritime infrastructure associated with shipping to Geelong Port. Recreational activities—birdwatching, angling, and boating—occur alongside commercial operations like aquaculture and port logistics, necessitating spatial planning to balance use and conservation.
Long-term monitoring programs involve bird surveys by groups such as the BirdLife Australia affiliate networks and academic research from institutions including Deakin University and University of Melbourne. Restoration initiatives have targeted seagrass rehabilitation, saltmarsh revegetation, and removal of invasive flora through collaboration with community groups like the Bellarine Landcare Network. Adaptive management is informed by studies on tidal exchange, nutrient dynamics, and climate vulnerability assessments undertaken by agencies including the Commonwealth Scientific and Industrial Research Organisation and regional environmental consultants.
Category:Ramsar sites in Australia Category:Wetlands of Victoria (state) Category:Bellarine Peninsula