Serpentine Lagoon Removal of Woody Weeds

Serpentine Lagoon Removal of Woody Weeds

  • Haughton
  • Burdekin

This project aims to complement works of the GBR Coastal Wetland Protection Program to clear weeds on the perimeter of the lagoon and increase the open shallow wetland habitat preferred by some birds. Work is bieng carried out on Barringa and involves CWPP, Wetlandcare Australia and ACTFR.

Summary: Serpentine Lagoon habitat values are presently adversely impacted by a range of factors, one of which is a woody weed infestation of chinee apple bush ( Ziziphus mauritiana ). Many water birds prefer areas with little adjacent vegetation to reduce the risk of predation. This project will reduce the infestations of chinee apple that are presently degrading habitat on the perimeter of Serpentine Lagoon, especially the melaleuca swamp forests in the vicinity of the bird hide. This project will restore natural values for birds dependent on open shallow wetland habitat whilst at the same time protecting native vegetation and enhancing opportunities for natural regeneration of native species.

This project is designed to complement works being undertaken through the Great Barrier Reef Coastal Wetland Protection Program - Pilot Program (CWPP) on aquatic areas at Serpentine Lagoon. Outcomes from the project include:

  • An environmental values and works plan for mechanical and manual weed removal
  • Removal of woody weeds and reduction of re-infestation potential (the lagoon is a headwater for
  • Use of the area as a demonstration site and production of a clearing guideline to assist other landowners who are clearing chinee apple bush.

Current highlights: As of 25 January 2007, some 80% of the Chinee apple infestation was cleared, and of the cleared areas all had been stick-raked. Clearing will recommence as the end of the wet season. A photo series of pre-clearing, post-clearing and post-stickracking has been undertaken. Detailed costing of the project has been supplied by the landowner and a cost benefit analysis shall be included in the clearing guidelines.

Linkages to other activities: The CWPP project will address aquatic weeds, grazing management and grazing exclusion trials as well as providing administrative and project management funding. Townsville City Council have worked with the landholders in the past and established bird hides, with funding provided by NHT.