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—Photo courtesy IDAHO DEPARTMENT OF FISH AND GAME Brook trout were selected for the first YY project because they are short lived and quick to sexually mature, which enables researchers to rapidly produce the hatchery broodstock and test the technique in a natural environment. Brook trout are also good candidates because they are nonnative, frequently overpopulate, and stunt in both lakes and streams, which means fish are too small to be of interest for most anglers.

—Photo courtesy IDAHO DEPARTMENT OF FISH AND GAME Brook trout were selected for the first YY project because they are short lived and quick to sexually mature, which enables researchers to rapidly produce the hatchery broodstock and test the technique in a natural environment. Brook trout are also good candidates because they are nonnative, frequently overpopulate, and stunt in both lakes and streams, which means fish are too small to be of interest for most anglers.

October 6, 2016

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IFG develops new way to control fish populations
October 6, 2016 1 a.m.

IFG develops new way to control fish populations

Hatcheries have long been used to replenish and restore fish populations, but can they also be used to reduce or eradicate them? Idaho Fish and Game researchers are studying whether using traditional hatchery technology in a nontraditional way can eliminate unwanted fish populations in the wild.