Hi John,
A new threat to Gannets that might be more serious: Chinese fishers.
Here is a German article on "fishers" apparently going after Gannets exclusively. In 2013, the Mauritanian coast guard found an estimated catch of 95,000 Gannets on board of a single Chinese trawler:
http://www.dda-web.de/downloads/tex...menacker_2014_spurensuche_vor_mauretanien.pdf
Another German magazine, "Vögel", subsequently published photos from the hold of what I suppose must have been another trawler, so the fear that Gannets are industrially exploited as a food source by the hundred thousands seems to be quite real.
Regards,
Henning