Monosex breeding technology for sablefish aquaculture: a mini-review Bulletin of the Japan Fisheries Research and Education Agency

The process of sexual differentiation (i.e. development of ovaries or testes) in fishes is much more plastic than for humans or other mammals. Even in fish species for which genetic sex determination systems have been well described, exogenous factors such as high temperature or steroid exposure may override those genetic controls and induce sex reversal—a mismatch between genetic and phenotypic sex. Sablefish Anoplopoma fimbria, also known as black cod (or “gindara” in Japan), is an important United States fishery and emerging marine aquaculture species, and a focal species for intensive aquaculture research and development at the Northwest Fisheries Science Center (NWFSC, Seattle, Washington, USA).