This dataset lists catch of Southern Bluefin Tuna (SBT) from the Commission for the Conservation of Southern Bluefin Tuna (CCSBT) from 1952 to 2015. Catches are stratified by year and fishing gear. It corresponds to the CCSBT nominal catch (task1) dataset.

This dataset was downloaded on the CCSBT website. It was then restructured to be in line with the Sardara database structure (columns normalization, names, etc.). However the content of data and the code lists were kept exactly as their are available in the source dataset.

The description below (caracteristics, specific issues and problems that need to be taken into account) is extracted from the CCSBT web page where the dataset has been downloaded.

Caracteristics, specific issues and problems that need to be taken into account :

Estimates of the global SBT catch will be updated on an annual basis within two months of the CCSBT annual meeting in October of each year. Note: reviews of SBT data in 2006 indicated that southern bluefin tuna catches may have been substantially under-reported over the previous 10-20 years and the data presented here do not yet include estimates for this unreported catch.

It should be noted that the data for individual Flag States and fishing entities shown here may differ to data that those Flag States and fishing entities have provided separately to other organisations. This is in part due to the data manipulations conducted by the CCSBT in producing this dataset (a variety of data sources were used, requiring a range of correction and raising techniques) and in part due to differences in the data provided by individual Flag States and fishing entities to the CCSBT and to other organisations. In particular, the post 1994 SBT data provided by Japan to the CCSBT differs from the post 1994 SBT data that Japan provides to other regional fishery management organisations. The data that Japan provides to CCSBT takes advantage of a Real Time Monitoring Program for SBT to collect daily catch and effort reports from SBT targeting fishing vessels and this is considered to minimise the time lag in availability of the Japanese SBT log book data.