Word: spawn
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Dates: during 1950-1959
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...lamprey's chief weakness is its breeding system; the adults (up to 2 ft. long) swim up rivers in early spring to spawn. The young lampreys, which look like minute worms, bury themselves in mud and lead a wormlike life, eating microorganisms. After five years of this, when they are 7 in. long, they develop toothy suckers and drift downstream to hunt fish in the lake...
...Canadian lamprey fighters have had some success with electrically charged fences built across the lampreys' favorite streams. Adult lampreys are killed or driven back by the electricity before they can spawn, but good fish are affected, too, and the fences are expensive to build and operate. Dr. Moffett felt it would be much better to find some chemical that would kill the infant lampreys in their burrows. The poison would have to spare the desirable fish that use the same streams, and no such chemical was known. So Moffett sent out a call for help, asking universities and industrial...
Originally a saltwater dweller, the sea lamprey moved up the fresh water of the St. Lawrence and into Lake Ontario to spawn, then developed a fresh-water species. The building of Canada's Welland Canal provided a detour around the natural barrier of Niagara Falls, and in the past 20 years the pests have begun to thrive in Lake Huron, Lake Michigan and, more recently, in Lake Superior. Multiplying enormously, with each female averaging 61,500 eggs, and feeding greedily, with each maturing lamprey devouring up to 40 pounds of fish, they have already wiped...
...looking into the possibility of a domestic market for the lamprey's white, tasty but highly indigestible flesh.* Of all the tested antidotes, the most workable is an electrically charged fence that can be stretched across the Great Lakes' tributary streams, into which the lampreys swim to spawn. Other fish will turn away from the electric field, but the lamprey will swim against the fence and be electrocuted...
...relied shamelessly on the "devil" theory of history. "Wall Street," "big businessmen," "reactionaries," "economic royalists" were tagged as villains. The logical legacy of the devil theory was the witch hunt. Professor Robinson implies that today's political " 'primitives' of limited intelligence," e.g., the McCarthyites, are the spawn of Roosevelt's intemperate labeling of political enemies. Equally damaging to the American policy, according to Robinson, was F.D.R.'s reliance on his intimate junta of nonelective braintrusters...