Some times when all the rigs are out and there is nothing better to do than wait, I tend to get very creative, and after seeing these types of fish around where I live there are certain species that are really abundant and caught my attention, and possibly when the fishing is cold but the shark fishing is hot and I need a bait i can catch one of these. I wonder if anyone here has ever hooked or caught sharks on the following before?
-yellow stingrays (those small 3lb round ones with spots, sometimes called skates)
-skipjacks (looks like a mackeral, true name is leather jack)
-rainbow runners
-barjack
-porgy
-margate
-trippletail
-triggerfish
-any freshwater species???
Thanks everyone.
Just an average fisherman.
Had a bull nail a rainbow runner at the side of the boat one time.
True rainbow runners and barjacks are excellent bait .The rest are excellent jerk baits. Your a jerk if you ues them. 
Used a chicken once good and oily actually got a run off it.
have'nt thought of that in years........ 
I used to work on a party boat and at one time or another I've seen sharks chomp on literally every fish on your list with the exception of a trigger, but I've seen flipper eat them so I guess sharks will too. We use rainbow runners up here for kings and 'hoo's and I regularly use skipjack's with great success because they are such an oily fish.