No salmon were caught on the first day of the new fishing season, according to fisheries boards in Dublin and Donegal.
The disappointing news is seen as a confirmation of the latest scientific findings that salmon stocks are at their lowest level since records began.
The only two areas where fishing was permitted were the Liffey in Dublin and the Drowse in Donegal.
As a result of the low stocks, a further 11 rivers have been closed for fishing.
In Cork, the South Western Regional Fisheries Board began the year with a plan to revive stocks on the River Lee.
