Water

Directory of Important Wetlands

Directory of Important Wetlands in Australia - Information sheet

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Upper Hindmarsh River Catchment - SA035

Level of importance: National - Directory
Location: 35 degrees 26' S, 138 degrees 32' E; southern Fleurieu Peninsula, located in the southern Mt Lofty Ranges 5 km south east of Myponga township.
Biogeographic region: Lofty Block.
Shire:
Area: 6.2 ha.
Elevation: 270-400 m ASL.
Other listed wetlands in same aggregation: None.
Wetland type: B15
Criteria for inclusion: 1, 2, 5,
Site description:
Two permanent, densely vegetated swamps located in steep gullies of the Hindmarsh River, and one lower down on the flats. Important filtering system for this River which is degraded in its lower reaches.
Physical features:
Climate: Mean annual rainfall is 900 mm, mostly falling in winter.
Hydrological features:
Water supply: Fed by springs and local rainfall.
Ecological features:
Ecological role: Provides habitat for nationally endangered fauna species. Plant structural formations: Swampy heathland.
Significance:
A good example of a peat swamp in the southern Mt Lofty Ranges. One of the few sites in the State to contain the threatened plant Thelymitra venosa.
Notable flora:
Threatened species: The swamps contain 15 threatened plant species, some of which include: Cryptostylis subulata (Se), Thelymitra venosa (Se), Schoenus tenuissimus (Se), Olearia glandulosa (Sv), Baumea rubiginosa (Sr), Baumea gunnii (Sr) and Pultenaea dentata (Sr). Composition: Dominant plant species include Leptospermum lanigerum, L. continentale, Lepidosperma longitudinale, Gleichenia microphylla, Empodisma minus, Sprengelia incarnata and Baumea rubiginosa.
Notable fauna:
Threatened species: Southern Emu-wren Stipiturus malachurus intermedius (Ne, Se). Composition: No information.
Other Fauna:
Social and Cultural values:
Research: One or more of these swamps may be used as monitoring sites for the Mt Lofty Ranges Southern Emu-wren Recovery Plan.
Land tenure:
Private land. Private land.
Current land use:
Moderate stock grazing. Stock grazing.
Disturbance or threat:
Past/present: Weed invasion.

Potential: Over-grazing and cat and fox predation.
Conservation measures taken:
None identified.
Management authority and jurisdiction:
The area is managed by a private landholder.
References:
See SA Reference List
Compiler & date:
T. Littlely & J. Cutten, Conservation Council of South Australian for ANCA (Endangered Species Program), 1995.
Drainage:  
AWRC Division: South Australian Gulf
AWRC Region:
AWRC Basin:
Catchment:
Sub-catchment: