The best sustainable yield, for the combined purposes of the fishing industry, of conservation, and of the nation as a whole. It has no hard and fast definition. In Canada, the yield when fishing at F0.1 is often used as a practical replacement for OSY. Gough and Kenchington (1995)
OPTIMUM SUSTAINABLE YIELD
Meaning of OPTIMUM SUSTAINABLE YIELD in English
Fishery English glossary. Английский глоссарий рыболовства . 2012