Great quantities of salmon have been recently exported from Limerick to England, and the abundant supply of eels in the Shannon is furnishing a new and productive traffic in the English market. There are ten tons of this prolific fish now in tanks at Killaloe, awaiting a conveyance to London, and a vessel adapted for the trade will take on board from Limerick in the ensuing week forty tons of eels for the London market.
The Dublin Monitor 23 October 1844
Irish waterways history 