Browsing by Subject "South coast"

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    Does parasite infection definitely increase for sardine aged 2 and above on the south coast
    (2014) Ross-Gillespie, Andrea; Butterworth, Doug S
    The trend with length in parasite prevalence in sardine on the South Coast is modelled in a manner that isolates behaviour at larger lengths to enable a determination of whether the trend continues to increase from age one to ages of two and above. The results indicate that a continued increase is robustly confirmed at the 5% level of significance, and hence that there must be some movement of sardine of ages greater than one in at least one direction between the West and the South Coasts under the hypothesis that infection by the parasite can occur only on the West Coast.
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    Implications to existing OMP of the 2010 updated assessments of the south coast rock lobster resource
    (2010) Johnston, Susan J; Butterworth, Doug S
    Johnston and Butterworth (2008) reported expected results for the final OMP 2008 for the South Coast Rock Lobster fishery. This OMP 1. has a 5% maximum TAC change constraint, and 2. has a median anticipated sp B (2025/2006) of 1.20 under operating Model 3 (MARAM TVS). Recently, a programming glitch in the operating models has been discovered. The result of correcting this glitch is reported in Johnston and Butterworth (2010). Here we compare the OMP 2008 expected performance statistics using the original 2008 operating models with those produced using the corrected operating models conditioned on the data available at that time. The current “OMP 2008” was tuned using the original 2008 Model 3 operating model.