‘Swarms’ of parasitic lampreys feed on bumper sockeye run
The parasitic Pacific lamprey is taking a bite out of the estimated more than 21 million sockeye returning to the Fraser River this year — a bumper harvest but short of the unexpectedly high returns of 2010.

The latest median return estimates released Friday by the Pacific Salmon Commission include runs of 1.9 million early-summer sockeye, seven million summer, and 12.73 million late-summer, including the Adams River run. The early Stuart run also yielded more than 200,000 sockeye.

It’s possible the late-run estimate will be lowered next week to as much as nine million.

In 2010, the last four-year cycle for this sockeye run, a total of 28.3 million ....http://www.vancouversun.com/Swarms+parasitic+lampreys+feed+bumper+sockeye/10161652/story.html