Silks

This is incredibly interesting! Hope you have some joy with the local govt and the respective depts, Riggers!

By the by, the City of Canning referred me to the Swan River Trust and the Dept of Fisheries FISHWATCH, for all inquires about 'guidelines or instructions on catching feral fish in the waterways, ponds, drains and rivers around Canning'.
http://www.swanriver..._feral_fish.pdf

There are masses of interconnected waterways in Canning, drains, ponds and the river itself. I have seen Koi, Carp, cichlids and all sorts of ferals while walking. I'd love to remove them but don't fancy the jumped up council workers giving me grief over it lol!