Found this on beach in Southend uk. What is it? There was loads. Green jelly like ?

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20160402_133318.jpg, 2.67 mb, 5312 x 2988

Looks like a polychaete worm egg mass - best guess (i.e. they are common and their eggs are thought to look like this, but there are other species!) would be the green leaf worm, Eulalia viridis which is a sort of paddleworm. Interestingly, nobody (to me knowledge) has yet to do the DNA work to totally confirm the widespread view that the green jelly blobs do indeed come from this beastie!