Moreton Bay Ramsar Site

Moreton Bay Ramsar Site
Name	Moreton Bay Ramsar Site
Location	Queensland, Australia
Area	~74,000 ha
Established	1993
Designation	Ramsar Wetland of International Importance

Moreton Bay Ramsar Site Moreton Bay Ramsar Site is a designated Wetland of International Importance located in southeastern Queensland, Australia. The site encompasses extensive intertidal sandbanks, seagrass beds, mangrove forests and tidal flats supporting notable populations of shorebirds, fish and marine mammals. It lies adjacent to major urban centres and a network of protected areas, playing a critical role in regional biodiversity, fisheries and cultural values.

Overview

The site forms part of the coastal complex near Brisbane, incorporating waters between Moreton Island and the mainland including North Stradbroke Island approaches, with jurisdiction overlapping local government areas such as Redland City Council and City of Brisbane. It connects to other recognized places including Moreton Bay Marine Park, Moreton Island National Park, and sections of the Great Sandy Strait. International recognition followed designation under the Ramsar Convention in 1993, aligning with Australian national instruments like the Environment Protection and Biodiversity Conservation Act 1999 and informing management by agencies including the Queensland Parks and Wildlife Service and the Department of Agriculture, Fisheries and Forestry (Australia).

Geography and ecology

Geographically the site contains a mosaic of estuaries, channels, shoals and islands formed by coastal processes interacting with the Brisbane River, Pine River and smaller coastal catchments. Ecologically, the bay supports intertidal flats dominated by extensive Zostera and Halophila seagrass meadows, extensive mangrove stands of genera such as Avicennia and Rhizophora, and saltmarsh vegetation including Sarcocornia. The hydrodynamics of the bay are influenced by semi-diurnal tides, sediment transport from the Coral Sea boundary and periodic flood pulses from the Brisbane catchment, creating habitats for estuarine fishes, invertebrates and migratory Charadriiformes species.

Ramsar designation and legal status

The site's Ramsar listing followed criteria recognizing its importance for waterbird populations, fish nursery functions and representative coastal wetlands. The designation interacts with Australian law, notably the EPBC Act for nationally significant matters, and with Queensland statutory planning instruments such as the Planning Act 2016 (Queensland). Management frameworks incorporate marine zoning under Moreton Bay Marine Park zoning plan and cooperative arrangements among state, federal and local entities including Australian Government Department of the Environment and Energy and regional natural resource management groups like Healthy Land and Water.

Flora and fauna

The bay supports diverse flora including extensive seagrass species important for carbon sequestration and as nursery habitat, and mangrove assemblages that provide shoreline stabilization. Notable fauna includes migratory shorebirds listed under the JAMBA and CAMBA agreements such as the Eastern Curlew, Bar-tailed Godwit and Great Knot, plus resident waterbirds like Royal Spoonbill and Australian Pelican. Marine fauna comprises Dugong populations, threatened Humpback Whale migrations, estuarine sharks, and commercially important species including barramundi and mud crab. The bay is also habitat for threatened taxa recognised under international and national lists, and supports significant populations of Australasian bittern and other conservation-priority species.

Human use and management

Human uses include commercial and recreational fisheries, shipping via Port of Brisbane, tourism centred on island resorts and day-trip operations, and recreational boating and birdwatching. Cultural and heritage values are significant for Traditional Owners such as groups from the Quandamooka people, with Indigenous management practices incorporated through joint management and advisory arrangements. Management actions are coordinated through instruments like marine park zoning, fisheries management plans under the Queensland Fisheries Act 1994, and regional coastal plans involving stakeholders including Reef Check Australia and local councils.

Threats and conservation measures

Key threats encompass habitat loss and fragmentation from coastal development, water quality decline due to urban runoff and catchment disturbance, sedimentation after flood events from the Brisbane River catchment, invasive species incursion, and disturbance from shipping and recreational vessels. Climate change pressures include sea level rise and increasing storm intensity affecting mangrove and seagrass distribution. Conservation measures implemented include water quality improvement programs, seagrass restoration trials, mangrove protection, marine park enforcement, pollution incident response protocols, and regional catchment rehabilitation led by partners such as Healthy Land and Water and the Queensland Government agencies.

Research and monitoring

Ongoing research and monitoring are conducted by universities like the University of Queensland and research organisations including the CSIRO and the Australian Institute of Marine Science, focusing on seagrass mapping, dugong population assessments, shorebird banding and movement studies, and water quality modelling. Long-term datasets inform adaptive management under programs operated by the Moreton Bay Research Station and collaborative citizen science initiatives involving groups such as BirdLife Australia and local volunteer networks. Monitoring outputs contribute to national reporting obligations under the Ramsar Convention and feed into policy reviews at federal and state levels.

Category:Wetlands of Queensland Category:Ramsar sites in Australia