Identifying the Source of Marine Debris

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Identifying the Source of Marine Debris

Analysis of beach rubbish from 2007-2013 found that marine debris makes up an average of 50-60 per cent of all rubbish found on Kangaroo Island’s beaches.

Results confirmed that there are higher quantities of marine debris on south coast beaches, particularly Vivonne, Windmill and Flour Cask Bays, which act as sinks for marine debris drifting in from the southeast.

Barcodes from bottles and food wrappers were recorded and used to identify the exact source of rubbish items. As might be expected, the majority of rubbish collected originated from Australia (80 per cent), while 8 per cent of items came from Asia, 5 per cent from Europe and 3 per cent from the Americas.

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Ecological Value of Exotic Water Plants Equals that of Indigenous Species - If you look at the role of exotic water plants in an ecosystem, you won't find any significant differences compared to indigenous species. Researchers studied seven essential functions of water plants in experiments with indigenous and non-indigenous species. They looked among other things at the impact of the plants on the habitat and food supply of fish and small aquatic animals, on cyanobacterial growth and on greenhouse gas emissions. What they found was that all things considered, the two groups are not fundamentally different.

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