Reminds me of Tripoid Carp..... gov. guaranteed for years that they were sterile and spread them all over the south to combat excessive plant growth in lakes. They they found hatchlings, in a tank of guaranteed sterile carp.
Dumbazz government!
Triploid fish are sterile. Period. End of discussion. I can go into all the genetic reasons why, but nobody wants to read that here.
That said, the various methods to induce triploidity are not 100% (except for one, but it’s not used for grass carp as far as I know) so once in a while a normal diploid fish will slip in. For fish sold in all western states, each fish is therefore individually checked, which involves human interpretation of the test. That has potential for failure.
