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Leading lampreys to slaughter: Pheromone for scourge of Great Lakes identified

ile acid derivative.

Until the pheromone can be synthesized in bulk, extracts of water from larval lamprey nurseries are being used to trap adults on an experimental basis in Michigan streams.

"Using these extracts has been shown to work," said Sorensen. "Capture rates are up six-fold." Most lamprey traps have been simple, rather ineffective devices, but now the attractants have opened up many new possibilities for attracting lampreys safely, easily and inexpensively into streams, where they might be captured. In theory, the cue could attract lampreys from many locations for miles around and could work for as long as several months.

The work was supported by GLFC, the University of Minnesota Agricultural Experiment Station and the National Institutes of Health.


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Source:University of Minnesota


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