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MECHANICAL FISH CONTROL <br />FYKE NETS <br />20.2 HECTARE LAKE IN WISCONSIN <br />FYKE NETS FISHED IN SPRING 1 YEAR <br />2822 BLACK CRAPPIE/HECTARE REMOVED <br />277 BLACK BULLHEADS/HECTARE REMOVED <br />3 GROWING SEASONS LATER <br />CRAPPIE LARGER THAN 200 MM INCREASED 4.3 <br />TIMES <br />BULLHEADS LARGER THAN 260 MM INCREASED 11 <br />TIMES <br />SOURCE: HANSON ET AL. (1983) <br />n