Have you ever questioned what function sterilized video game fish– triploids and hybrids– play in fisheries-management strategies? A cool story on the Idaho Fish & Video game site discusses:
The most frequently equipped sterilized fish in Idaho is Rainbow Trout. We stock triploid Rainbow Trout, indicating these fish have 3 total sets of chromosomes rather of 2. This makes them sterilized. Hatchery personnel cause triploidy by disrupting the early phases of embryo advancement quickly after fertilization with high pressure (a number of thousand psi) which triggers the egg to maintain an additional set of chromosomes and renders the fish sterilized. Other times, IDFG utilizes hybrid mixes such as Tiger Trout or Tiger Musky that are naturally sterilized. Sterilized fish are a crucial tool in a fisheries supervisor’s tool kit since they enable fishery supervisors to have more direct control over a population’s density and their prospective to trigger damaging hereditary effects to wild fish.
