Diet of the European Shag Gulosus aristotelis during the non-breeding season at a roost within a tidal channel

The diet of the European Shag Gulosus aristotelis was assessed at one of their most northerly roosts in the UK; Bluemull Sound, Shetland. One pellet and 40 faecal samples were collected during the non-breeding season. The most frequent prey was Velvet Swimming Crab Necora puber, while the highest number of otoliths were from Saithe Pollachius virens and estimated mean (+/- sd) fish length was 143.9 +/- 66.9 mm (range 81.4-223.6 mm).