artificial worms/Mediterranean

I fish the Med, near to the Ebro Estuary, usually off the back of my
yacht - this is relevant as I do not have the speed to get out into
deep water. Fishing in 5 to 7 metres over sand and silt there are
ceratinly large(ish) fish but the plague is tiny fish with very sharp
teeth, well capable of eating every bait off the hook without
registering a bite. If I'm tempted to use a smaller hook I end up with
6 inch fish. Also the fish have a deal with the tackle shops as they'll
only take worm. These worms are what I, in my youth, called silver or
habour rag. In fact they come from Asia, to France and then to Spain
and cost 4 euros for about 10 or 12 in a box. Scandalous! I've seen
reference to artificial, scented worms perhaps marketed by Coopers
Baits (their website doesn't respond!) I have started to try
chiporones (tiny squid)as they fit the hook well and have a scent. I'd
appreciate any advice from UK or Med sources as I am really desperate
to catch a fish to be proud of (and cook - there's only two of us!!)
Whilst writing, let me say we have an apartment for rent in Ampolla if
anyone wants a decent place to base their fishing trip. Go to
www.valcol.com if you want details - there may be a sea-boat trip
available too!!