Thanks for all the tips so far!

Redweiser, I had no idea they would grow that big!!!
Biggest ones I've seen around the fishmarkets were a maximum of 40 pounds I would say. And many 3-5 pounders are sold. Other than kingfish this is the most expensive fish on the local markets in Sri Lanka and very tasty. So probably or quite sure they're overfished. After Tsunami in 2004 lots of small boats and outboards were bought with donations to help the people there. All of a sudden everybody claimed he was a fishermen before Tsunami and got one. The number of commercial fishermen nearly doubled, many of them were farmers before Tsunami! But you can make better money with a new boat!

I understand these people.
So I'll try some live baiting next time there.

Alex