A record of the generation of data used in the sardine and anchovy assessments

Cunningham, Carryn L; van der Westhuizen, J J; Durholtz, D; Coetzee, J

A record of the generation of data used in the sardine and anchovy assessments

Working Paper

2007

Publisher

University of Cape Town

Department

Marine Resource Assessment and Management Group

Faculty

Faculty of Science

Abstract

The data to which the South African anchovy and sardine assessments are tuned are not raw data. Some of the data have already been subjected to a number of analyses and refinements. These associated calculations are often done “behind the scenes” and their details are seldom recorded. This lack of record can result in a discontinuity in the method used to calculate data for subsequent assessments, particularly if assumptions made in the calculations are not documented and/or a new person becomes responsible for developing the data to be used for input to the assessment. This document serves to record the generation from the raw data of the data to be used in the anchovy and sardine assessments to be carried out in 2007.

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