FLORENCE (AP) — Prices for whitefish are going up worldwide, thanks to an international shortage of Alaskan pollock and other white-fleshed fish. That’s coupled with increasing demand from Europe.

Some researchers think the shortages are due to overharvesting in some parts of the world and changes in the ocean because of warming temperatures.

Pollock prices have swung from 10 to 15 cents per pound in recent years, before jumping to as high as 25 cents a pound in recent months. Pacific whiting prices also have doubled, from 3 cents per pound to 6 or 7 cents.

Oregon commercial fishermen say they have seen some benefits but say they are still pulling in less for their product than their Canadian counterparts, thanks to a lack of processing options.