F0.1
F 0.1;(F zero point one)
the fishing mortality rate at which the marginal yield-per-recruit, i.e. the increase in yield-per-recruit in weight for an increase in one unit of fishing mortality, is only 10 percent of the marginal yield-per-recruit on the unexploited stock.The fishing mortality rate at which the slope of the yield-per-recruit curve is only one-tenth the slope of the curve at its origin. It is an approximation to the level of fishing mortality that will generate the maximum sustainable yield when a more accurate estimate is not possible. Most TACs are based on this target fishing mortality which aims at catching 18 fish out of every 100. Fishing at greater than F 0.1 yields few more fish for a much greater effort. It also gives a greater safety margin against overfishing than using FMAX. as is is always lower. It lets more fish survive to grow and spawn, reducing the risk of recruitment failure, increasing the stock\'s biomass and giving higher catch rates and so costing less to catch the same weight of fish. Fish in the catch are bigger and more economically viable on a per pound basis. F 0.1 management is usually a more stable fishery from year to year than FMAX management