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Posts tagged Murray River

Murray-Sunset and Wyperfeld National Parks, Australia

March 28th, 2009 Category: Lakes, Rivers, Snapshots

Australia - March 20th, 2009

Australia - March 20th, 2009

The darker patches of land amidst the Australia’s orangey brown terrain are actually two national parks, rich in plant- and wild-life.

Murray-Sunset National Park (above) is the second largest national park in Victoria, located 438 km northwest of Melbourne. It is in the northwestern corner of the state, bordering South Australia to the west and the Murray River to the north.

The park was created in 1991, and expanded to encompass Pink Lakes State Park in 1999. The lakes are dubbed “pink” after the beta-carotene pigment that colours it in late summer, caused by the algae Dunaliella salina. Over 600 species of plants have been recorded, and 300 species of birds in the rich mudflats.

Below Murray-Sunset is another protected area: Wyperfeld National Park, the third largest national park in Victoria. Declared in 1921 and expanded significantly since, it protects more than 3,500 kmĀ² of mallee, woodland, and heathland in Victoria’s north-west, about 450 km northwest of Melbourne.

In good years, the Wimmera River fills Lake Hindmarsh to the south of the park, which overflows along Outlet Creek, which then fills Lake Albacutya to the immediate south of the park, and (given sufficient rain) flows further north into Wyperfeld itself, forming a series of smaller lakes which support rich floral and faunal communities based around black box and river red gum.

Lake Alexandrina and Adelaide, Australia – March 24th, 2009

March 24th, 2009 Category: Image of the day, Lakes

Lake Alexandrina and Adelaide, Australia - March 20th, 2009

Lake Alexandrina and Adelaide, Australia - March 20th, 2009

Lake Alexandrina is a lake in the state of South Australia, Australia, adjacent to the coast of the Southern Ocean, about 100 kilometres south-east of Adelaide (visible as a light grey area on the coast). Easily identifiable from its bright green color, the lake is north of Encounter Bay and east of Fleurieu Peninsula.

The major river flowing into Lake Alexandrina is the Murray River; others include the Bremer, Angas, and Finniss Rivers, all from the eastern side of the southern Mount Lofty Ranges. A narrow channel connects Lake Alexandrina to the smaller Lake Albert to the south-east.

Lake Alexandrina, which is shallow and contains a number of islands near the southern end, empties into the sea near Goolwa (the channel is known as the Murray Mouth). However, when the river flow is low the entrance is often blocked by a sand-bar.

Originally subjected to tidal and storm inflows of seawater the lake is now maintained as fresh water by a series of barrages across the islands near the Murray Mouth. This has produced an annual requirement for more than 1 million megalitres of fresh water to replace losses from evaporation that once came from sea water.

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