Then I met Peter Maitland, doyen of Scots freshwater fisheriies, and chanced to mention that I had this information and he asked where he could access it. I (rather sheepishly) tapped my head. He, rightly, responded 'Well, that's no good, is it?' So, I decided to draw the threads together. It was, in fact, a substantial project but has now been published in Review of Scottish Culture, volume 28. The volume is dated 2016 (though actually publiished in July 2019).
It brings together the scattered evidence, allows some comparison with other countries and suggests some of the major pressures on the fisheies (which have all, now, vanished as the European eel itself becomes a rarity).