‘Both herring and mackerel are moving quickly and as an example, we were fishing on a very good mark we found off Glettinganes three days ago. The marks were very strong and in three days we have followed this shoal as it has shifted around 100 nautical miles, first east and then south-east. Yesterday we towed for 30 nautical miles south-east and there was plenty to be seen. But in the evening it was as if everything disappeared. At first we thought the fish had dropped down to 100 fathoms, which isn’t unusual, but that wasn’t what had happened.’