John Larrson, chairman of OzFish Ballina, discusses the importance of Mangals and Oyster reefs to our dynamic ecosystems, via the link on this page.
Watch John's talk and answer the questions on Page 5 and 6 of your work booklet using this link below:
John Larrson talk for Geog/Science
To the left is a carousel of pictures of the mangals and salt marsh along Simpson Creek. Scroll through the images. Take note of the litter that was present.