Ok, not a everyday venture, yellow fishing!!!
so we do fish for them in the summer rains.
we do not fish the big rivers as we can normally see the fish feeding in the small streams.
so what we do is, go to a stream which has a flood plain, which has scattered rocks.
all you need to do is lift the rocks and find the crabs.
big ones and small ones, it does not matter.
if you cannot get crabs, then fish with earth worms or termites.
like i said, we can normally see them feeding.
we would use a j-hook and about 40-60cm above the j-hook we would place a wine cork inline.
because it is sight fishing, we stand on the edge of the stream and then place the baited hook inside the water and letting it flow with the current.
it is normally fast flowing streams, so we only place the bait out, follow it until the slack is taken up and then we place it again higher up in the stream.
just watch the cork, it normally goes down with a bang.
the other area we do target is where the fast running stream goes into a wider area.
there we will cast out the cork with the crab.
let it drift down current and here we will let out line, to cause a natural moving bait.
you will be surprised how hard they take the bait.
even the smaller ones do not play.
we also do not use the whole crab, but rather pieces of it. we were fishing more for small mouth but we did succeed in getting a large mouth too.
so if you do get a small crab, we would normally break off all the legs, break open the shell and only use the meat inside of the shell.
let me see if i can find a picture of the ones we caught earlier this year.
i hope this helps.