The Aeron is a classic spate river that contains sea trout, salmon and brown trout. The sea trout range in size from half to ten pounds or more. Salmon have been caught over twenty pounds and one spectacular example can be seen mounted in the bar of the Black Lion Hotel in Aberaeron. The native brown trout are usually small but can provide challenging sport using light tackle.

The sea trout begin running in April or May and continue until the end of the season. The runs are generally water-dependent with the best fishing usually coinciding with higher levels. Sea trout can be caught during the day on worm and spinner, especially during high water, with fly fishing best after dark. Salmon run the river during high water and are generally caught during the second half of the season. Trout can be caught throughout the season.

Day tickets for the Aeron & Arth can be bought via the Aberaeron Town Angling Club. Please see here for details.