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Seagrass loss
Winter scene, West Beach
Beach erosion and littoral drift have been increased by the progressive loss of protective
off-shore seagrass beds, which worsened dramatically in the 1970s.
The loss of seagrass has been attributed to a combination of increased nutrients from
sewage effluent in the traditionally nutrient-poor Gulf waters, and increased turbidity
from stormwater runoff.
The controversial Barcoo Outlet project diverts polluted, sediment-laden stormwater from
the Patawalonga Lake at Glenelg, and discharges it directly to the Gulf.
Members of the Stormwater Industry Association inspecting the construction of the Barcoo Outlet, 23 February 2001.
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