Find the production parameter based on depletion that produces MSY

For surplus production models, this function returns the production exponent n corresponding to BMSY/K (Fletcher 1978).

Usage

SP_production(depletion, figure = TRUE)

Arguments

depletion

The hypothesized depletion that produces MSY.

figure

Local, plots figure of production function as a function of depletion (B/K)

Value

The production function exponent n (numeric).

Note

May be useful for parameterizing n in SP and SP_SS.

References

Fletcher, R. I. 1978. On the restructuring of the Pella-Tomlinson system. Fishery Bulletin 76:515:521.

See also

SP SP_SS

Author

Q. Huynh

Examples

SP_production(0.5)

#> [1] 2
SP_production(0.5)
#> [1] 2