Have another harvesting questions.
On the seashore. Can you "harvest" and therefore eat periwinkles, mussels, crabs etc.
Again some people doing this, usually using snorkels/wetsuits to go out quite far (less contaminated, they said).
Also, in Spain people tend to eat seafood "as is", meaning they just boil an eat, whereas we always seen to add strong flavours e.g Garlic Mussels.
Anyone know why?
For winkles and mussels. You can harvest/pick them on the shore. The best time to do so is around spring tides. When the tide is out you can go out an pick them from places that would normally be under the water. That way you are sure of the freshness of the winkle/mussels.
Crabs are not as easy to find as winkles or mussels. Generally if it is alive then you are ok to catch it and eat it. You aren't likely to find large ones without knowing where to look.