Author:Brandão, Anabela; Butterworth, Doug SDate:2014Back-tracking biomass values to 1932 for each posterior replicate of a Bayesian “Replacement Yield” model applied to the total annual catches and the survey abundance estimates for the South African kingklip resource off the South coast by ...Read more
Author:Teka, ZeferinoDate:2011This study looks at backward linkages to the manufacturing sector in the oil and gas value chain in Angola as a potential driver of industrial development. The study employs a sub-sectoral approach rather than an aggregate (entire industry) ...Read more
Author:Jones, Bevan W S; Malan, Arnaud G; van Rooyen, Jacobus ADate:2015Presented in this paper is an accuracy enhancing r-refinement scheme based on the ballvertex method [1, 2]. Due the success of the method in mesh movement, this work seeks to extend its use to error minimization for computational fluid dynamics ...Read more
Author:Simmonds, GillianDate:1997This paper forms part of the research programme entitled Energy efficiency, equity and environment: Improving access to energy services for the urban poor of South Africa. The paper explores the market and government barriers to the implementation ...Read more
Author:Cunningham, Carryn L; Butterworth, Doug SDate:2007The assessment of the South African sardine resource is in the process of being updated. This document outlines the base case assessment which has been updated from the last assessment (Cunningham and Butterworth 2004) to take account of new data.Read more
Author:Butterworth, Doug S; Coetzee, JanetDate:2019A list is put forward of suggestions and criteria to provide a basis for developing a sardine directed TAC and by-catch TAB for 2019Read more
Author:Glazer, Jean Patricia; Butterworth, Doug SDate:2012A Bayesian assessment of the squid resource was last performed in 2010. This paper presents results from an updated Bayesian assessment given that additional years’ data are now available.Read more
Author:Johnston, Susan J; Butterworth, Doug SDate:2005Bayesian assessment of breeding stocks B, C and G of the Southern Hemisphere humpback whales are presented. These assessments incorporate a prior for the maximum growth rate r derived from similar assessments for breeding stocks D and E. This ...Read more
Author:Johnston, Susan J; Butterworth, Doug SDate:2005A Bayesian assessment of breeding stocks D and E shows qualitatively similar results to those presented previously using maximum likelihood methodology, although (in posterior median terms) breeding stock D is indicated to be a little less ...Read more
Author:Johnston, Susan J; Butterworth, Doug SDate:2008Bayesian stock assessment results for breeding sub-stocks C1 and C3 using models which allow for interchange on the breeding grounds as well as mixing on the feeding grounds are illustrated for two models – the sabbatical model and the resident ...Read more
Author:Müller, Andrea; Butterworth, Doug S; Johnston, Susan JDate:2010Three different models are considered for Southern Hemisphere humpback breeding stock B: Model 1, a single fully-mixed stock; Model 2, reproductively independent stocks B1 off Gabon and B2 of the southern African coastline; and Model 3 with ...Read more
Author:Johnston, Susan J; Butterworth, Doug SDate:2009Bayesian stock assessment results for breeding sub-stocks C1 and C3 using models which allow for interchange on the breeding grounds as well as mixing on the feeding grounds are illustrated for four models – the sabbatical, tourist and migrant ...Read more
Author:Faull, AndrewDate:Dec 2011This resource will be of value to scholars of transformation in South African organisations. The shift from apartheid to a constitutional democracy in South Africa brought with it a plethora of questions concerning ideas of nationhood, ...Read morecbna