EstuaryWatch Data Portal
|Estuary name||Bourne Creek|
|CMA||West Gippsland CMA|
Bourne Creek is a small intermittently closing and opening coastal estuarine lagoon (ICOLL) located to the east of the Kilcunda township. The majority of the creek that is considered estuarine is located within protected crownland reserves with good vegetation cover (i.e. the Kilcunda Creek Water Frontage and Kilcunda Coastal Reserves). The broader catchment that feeds the estuary with freshwater is approximately 10 square kilometres, extending as far north as the Kilcunda Ridge Road. This catchment is relatively steep, eroded and contains very little remnant or newly established vegetation.
- EVC pre European settlement: (83) Swampy Riparian Woodland (Endangered).
- EVCs that appear to inhabit the site currently: (9) Coastal Saltmarsh, (10) Estuarine Wetland (this is likely to resulted from changes in hydrology resulting from catchment clearing, intensive landuse leading to the loss of top soil and deepening of the creek channels (i.e. lowering of the landscape and creek channels to allow the intrusion of more saltwater into the creek). On top of this the recent need to carry out artificial estuary entrance openings would also have allowed more saltwater into the creek).
- Bird species sighted at Bourne Creek include; Hooded Plover, Sooty Oystercatcher, Eastern Great Egret, Pacific Gull, Greater Sand Plover, Common Diving Petrel
- Fish species at Bourne Creek; Common Galaxias, Spotted Galaxias, Short-finned Eel, Flatheaded Gudgeon, Black Bream.
Unpermitted estuary entrance openings, growing populations, changes in water regimes, high levels of sediment and nutrients, pollution events, habitat modification, land reclamation, Invasion by weeds and pest animals, salinisation and acidification, bank instability, livestock access and altered marine exchange.
|Monitor group||WGCMA Estuary Management Group|
24-05-2016 - 23-07-2018
Grassy bank 20 metres upstream of the Kilcunda Rail Trail Trestle bridge. Eastern bank of the creek.
27-04-2017 - 13-08-2018
Mouth of Bourne Creek.
|21-08-2018 Estuary Entrance Opening
After 25mm of rain over a period of 3 days Bourne Creek opened naturally to the ocean.
Tide: low tide occurred at 12.41 pm (0.7m).
Swell: Rough (2.6-2.7m)
|24-07-2018 Estuary Entrance Opening
An artificial estuary mouth opening took place to alleviate the inundation of the Bass Hwy.
|18-06-2018 Estuary Entrance Opening
Mouth artificially opened to alleviate the inundation of the Bass Hwy
More than 10 Long-finned Eels were found dead throughout the estuary. The size class (20 - 40cm long) which is younger than the breeding and seaward migration age. One larger 60 - 80cm Eel was also found, which may have been of a breeding age.
These deaths are likely to be a result of the following:
- Estuary water draw down (over summer)
- dramatic increase in Salinity (well above seawater)
- Increased temperature and Turbidity
- Dissolved oxygen fluctuations resulting from Eutrophic conditions.
The EstuaryWatch snapshots provide a summary of estuary condition on a particular day. For all EstuaryWatch Snapshots, photopoint photos and a longitudinal water quality profile from the estuary mouth to the inland extent is displayed. Read more
All content, files, data and images provided by the EstuaryWatch Data Portal and Gallery are subject to a Creative Commons Attribution License
Content is made available to be used in any way, and should always attribute EstuaryWatch and www.estuarywatch.org.au