MONITORING SEAGRASS BEDS

The Yuku Baja Muliku Rangers have been monitoring the sea grass beds at Archer Point since 2008 and they have noticed a dramatic change in the quality and quantity of the sea grass beds. The surrounding areas adjacent to the sea grass beds are undeveloped national parks and Aboriginal freehold, therefore they have had minimal human impact.

Although seven sea grasses have been identified in the bay, the July 2012 monitoring found that only two of these grasses are still present. This decline has been the result of sand deposits from adjacent creeks, major cyclone events and drastic flooding in the South. The rangers have noticed not only a decline in sea grass species, but also the quantity of the grasses.

Dugong and turtle feeding trails were traditionally very common in these sea grass beds, but recently no trails have been present. Dugongs have the ability to move to where there is more food to keep feeding. However, the green sea turtles return to the same feeding ground every year and they do not go looking for another food source when their food supply diminishes. Hence, there has been an increase in sick and hungry turtles up and down the east coast of Queensland, which were once vital turtle feeding grounds.

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