I have seen folks use big chunks of raw chicken. I would imagine that most large chunks of raw fish would work as well. They can also be caught by pulling a completely unraveled piece of rope (not the coarse type. you will need the softer kind with as fine of fibers as you can get) near them but you really need to know where they are first. They snap and get their teeth tangled in it and you don't even need a hook. You will need some beefy tackle. Use the toughest rod u can find over 8' long with a penn 209 or something comparable. You will also probably want at least 100lb test line with steel leaders double that strength. Use at least 8/0 with the hook size too. If you want much better odds you can use treble hooks. It is tough to hook them because they are very bony and built like tanks. I hope this helps.
cov