AMHERST, Mass. - The splitting of a species into two new species may occur in far fewer generations than scientists previously believed, according to a study led by University of Massachusetts postdoctoral researcher Andrew Hendry. Hendry, an evolutionary ecologist, conducted his study on two populations of sockeye salmon in the Pacific Northwest. The findings are published in the Oct. 20 issue of the journal, Science. His co-authors are Paul Bentzen and Thomas Quinn, both of the University of Washington, John Wenburg of the University of Montana, and Eric Volk of the Washington State Department of Fish and Game.