University of Cape Town
FISHERIES.2023.JUL.SWG.SCRL.06 (new management target).pdf (782.99 kB)

South Coast Rock Lobster: a new management target

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posted on 2023-10-23, 06:46 authored by Susan HollowaySusan Holloway, Doug ButterworthDoug Butterworth

Current spawning/exploitable biomass for the south coast rock lobster resource is estimated to be 41%/45% of K. The Reference Case (RC) MSY estimate is 420 MT at a Bsp/K of 0.35 (a Bexp/K of 0.42). Fmsy is estimated to be 0.11, though MSY-related estimates are heavily dependent on assumptions made about the stock-recruitment relationship. The RC model estimates that the resource is currently 19% above Bmsy in terms of spawning biomass. A new management target, based on Bmsy, for simulation testing new candidate OMPs is suggested.



Department of Mathematics and Applied Mathematics, University of Cape Town