Salmon fishing thrives in Jökulsá á Dal as reservoir nears capacity

Jökulsá á Dal, once primarily a glacial river, has transformed into a notable salmon fishing river since Kárahnjúkavirkjun hydropower plant began operations. The fishing record has significantly improved this summer, with the fishing season extending by about one and a half months compared to last year, when the reservoir filled unusually early.

Currently, Hálslón, the reservoir for Kárahnjúkavirkjun, is nearing capacity, just half a meter away from overflowing. Once it does overflow, sediment-laden water will flow through the river’s former channel. Until then, the river remains a clear, cold-water stream for much of the year while the reservoir fills and no overflow occurs. Local farmers and the fishing service Strengir have successfully cultivated a salmon population in this heavily fished river.

This summer has seen an exceptional yield, with 1,130 salmon caught, surpassing all previous records. The absence of overflow has contributed to this success, as noted by a local fishing guide. The river has also been stocked with fry, aiming to bolster its wild salmon population. Despite concerns about the potential impacts of glacial meltwater on the ecosystem, recent studies suggest that the river’s biodiversity can withstand this variability, with increasing numbers of wild fry.

As the reservoir approaches overflow, fishing will pause in Jökulsá á Dal but will continue in neighboring tributary rivers. The anticipated shift in water clarity will signify a seasonal end to fishing in the main river, marking a significant moment for both anglers and the local ecosystem.