Are Stocked Fish Sterile?

Triploid trout are sterile and cannot reproduce successfully because they have three sets of chromosomes (triploid) instead of the normal two sets (diploid). The use of sterile, triploid trout in stockings is a practice that several states use in our region.

Why is stock sterile fish?

The sterile predatory fish will lower the population of the invasive species while also providing a sport fishery for anglers. ... They provide great angling opportunities and protect wild stocks that could otherwise be threatened.

Are farmed trout sterile?

Farmed trout stocked into rivers must be infertile (triploid) to prevent them breeding with wild trout.

Alexander Ross

Alexander Ross

Gaming, Esports & Interactive Media Writer

Alexander Ross has covered the video game industry for a decade, writing deep dives on game design, esports tournaments, VR developments, and gaming culture.