Hi mate i fish for blackfish not on the ocean rocks but in the harbour have been getting some fine blackfish there if i was you i would get some weed and try the harbour for them while they are still around .
So more people with out the knowledge of the water will drown as to what I said Lifejackets I think is a good idea and all Rock Fisherman should wear one .
Every wharf i fish have the signs on them but i know of people who eat the fish from there for years and still continue to eat the fish Eating fish 2 times a week is fine would not eat them every day but .