To add to @kingie chaser link.
Here is a section from DPI
Taking, gathering, destroying, injuring or interfering with any fish or marine vegetation (whether dead or alive), other than taking fish using hand held lines or lawful recreational nets from that part of Towra Point Aquatic Reserve referred to as the refuge zone shown in Schedule 2.
Note: This includes a prohibition on feeding fish or the use of burley to attract fish.
So if it was in the "reserve" it seems OK to Fish in there.