Browsing by Subject "TACs"

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    Further results relating to appropriate TACs for the South African Merluccius paradoxus and M. capensis resources
    (2006) Rademeyer, Rebecca A; Butterworth, Doug S
    A simple species-aggregated population model is applied to combined-species hake CPUE data since 1992 as a “reality check” on the short term substantial reductions in TACs being indicated by candidate OMPs when tested under the operating model. These simple computations suggest similar levels of TAC reduction are necessary to restore resource abundance (and hence CPUE) to 1992 levels over the next 10 years. Retrospective analyses comparing the reliabilities of the SR1 and SR2 options in predicting recent recruitment are pursued, and suggest slight preference for use of the SR2 option. TAC projections under the various OMP candidates for fixed future inputs for resource abundance indices are shown to illustrate how the TACs output by these OMPs depend on the index values input
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    OMP 2007 re-cast to be used for setting TACs for the West Coast rock lobster fishery for the 2008+ seasons
    (2010) Johnston, Susan J; Butterworth, Doug S; Glazer, Jean Patricia
    This document first gives the reasons why the OMP agreed for West Coast rock lobster in 2007 (OMP-2007) was “re-cast” the following year, listing the modifications then introduced. It then provides details of the three main components of “OMP-2007 re-cast”: 1) how data are combined across the five super-areas (Area 1-2, Area 3-4, Area 5-6, Area 7 and Area 8) for input into the OMP; 2) the OMP formulae which provide the global TAC recommendation; and 3) the manner in which the global TAC is split amongst super-areas and resource usergroups
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    OMP 2011 re-tuned to be used for setting TACs for the West Coast rock lobster fishery for the 2013+ seasons
    (2013) Johnston, Susan J; Butterworth, Doug S; Brandão, Anabela
    This document provides full specifications of OMP 2011 re-tuned to be used to set allocations for various sectors and super-areas for the 2013+ seasons for the West Coast rock lobster fishery. This OMP is implemented slightly differently for the first season (2011), and also differs from OMP 2011 as intended to be implemented for 2012+. The management objective is to increase the male biomass above 75mm CL by 35% by 2021 relative to the 2006 level in median terms. OMP 2011 re-tuned retains this management objective by adjusting for the TAC set for the 2012 season being higher than recommended under OMP 2011. This document provides details of the three main components of OMP 2011 re-tuned: 1) how data are combined across the five super-areas (Area 1-2, Area 3-4, Area 5-6, Area 7 and Area 8+) for input into the OMP; 2) the OMP formulae which provide the global TAC recommendation; and 3) the manner in which the global TAC is split amongst the super-areas and different sectors.