In Reviving Giants we learnt about the disappearance of giant kelp forests in Tasmania. Scientists estimate that 95% of the dense giant kelp forests along Tasmania’s east coast have disappeared.

In the film we learnt this decline was cause by climate change which had led to a) lack of nutrients, b) marine heatwaves and c) tropicalisation.

14. Match the definitions below with the correct term.

In this next video we will learn more about what has caused the decline.

In the video at 01:11, Dr. Scott Bennett explained the combination of impacts that has led to the giant kelp decline.

15. In your own words describe how these factors may impact kelp

a) climate change

b) lack of nutrients

c) sea urchins

Giant Kelp Threats