The data used in the 2024 sardine assessment

The data used in the South African sardine assessments are not all raw data. Some data have already been subjected to 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 of the data used in the sardine assessment carried out in 2024 – using data up to the end of 2023 ‐ from the raw data.

南非沙丁鱼评估所使用的数据并非全部为原始数据。部分数据已经过分析与精炼处理。这些相关的计算通常在幕后进行，且其细节鲜有记录。这种记录的缺失可能导致后续评估中计算数据所采用的方法出现间断，尤其是在计算过程中所做出的假设未得到文档记录，或新的人员负责开发用于评估输入的数据时。本文件旨在记录2024年进行的沙丁鱼评估中使用的、截至2023年底的数据生成过程。