September 15, 2022 — Researchers at the Norwegian Institute of Marine Research in Bergen, Norway, have used the CRISPR/Cas9 method of gene editing to produce salmon that cannot produce gametes (eggs and sperm), so cannot reproduce.
If produced for commercial purposes, any escaped fish would be unable to breed with the wild salmon population. They would also not experience the issue of early sexual maturation, which can lead to poor meat quality and greater susceptibility to disease, according to Lene Kleppe, a researcher working on the project.