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GLMM standardisation of the commercial abalone CPUE for Zones A-D over the period 1980–2015

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This paper presents an update of the standardisation of the abalone CPUE using a GLMM approach proposed by Brandão and Butterworth (2012), which adds new data for the 2014/2015 fishing “year” in Zones A and B. The standardised CPUE values for both Zones A and B for the 2015 model-year are slightly higher than the corresponding values for 2014; however these indices are still lower than those prior to 2011 and 2012 respectively.

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Department of Mathematics and Applied Mathematics, University of Cape Town