Current assessments of the rock lobster Jasus tristani estimate current spawning biomass at Nightingale to be 99% of pristine – an exceptionally healthy level. The performances of three OMP candidates for the fishery for rock lobster at Nightingale are reported, which vary in the maximum future TAC ceiling (either the current 95 MT or a higher 100 MT, or a combination of the two). All CMPs have appropriate feedback, so that if the resource declines in the future, the future TAC will do so too. An added precautionary feature defines an Ilim catch rate below which the TAC can decline faster than the baseline constraint of 5% pa given the occurrence of specified “Exceptional Circumstances”; this feature is built into the CMPs.
History
Department/Unit
Department of Mathematics and Applied Mathematics, University of Cape Town