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DLMtool (version 3.2.3)

DBSRA: Depletion-Based Stock Reduction Analysis

Description

User prescribed BMSY/B0, M, FMSY/M are used to find B0 and therefore the OFL by back-constructing the stock to match a user specified level of stock depletion (OFL = M * FMSY/M * depletion* B0).

Usage

DBSRA(x, DLM_data, reps = 100)

Arguments

x
A position in a data-limited methods object.
DLM_data
A data-limited methods object.
reps
The number of samples of the TAC (OFL) recommendation.

Value

A vector of TAC (OFL) values.

Details

You specify a range of stock depletion and, given historical catches DB-SRA calculates what unfished biomass must have been to get you here given samples for M, FMSY relative to M and also BMSY relative to Bunfished.

References

Dick, E.J., MacCall, A.D., 2011. Depletion-Based Stock Reduction Analysis: A catch-based method for determining sustainable yields for data-poor fish stocks. Fish. Res. 110, 331-341.